20210305

Dependencies:   mbed FastPWM

main.cpp

Committer:
Lightvalve
Date:
2020-12-20
Revision:
199:ee79b4692e3b
Parent:
198:bc4dfecb8e32

File content as of revision 199:ee79b4692e3b:

//201220_2_with_delay
#include "mbed.h"
#include "FastPWM.h"
#include "INIT_HW.h"
#include "function_CAN.h"
#include "SPI_EEP_ENC.h"
#include "I2C_AS5510.h"
#include "setting.h"
#include "function_utilities.h"
#include "stm32f4xx_flash.h"
#include "FlashWriter.h"
#include <string>
#include <iostream>
#include <cmath>

using namespace std;
Timer t;

///191008////

// dac & check ///////////////////////////////////////////
DigitalOut check(PC_2);
DigitalOut check_2(PC_3);
AnalogOut dac_1(PA_4);
AnalogOut dac_2(PA_5);
AnalogIn adc1(PC_4); //pressure_1
AnalogIn adc2(PB_0); //pressure_2
AnalogIn adc3(PC_1); //current


// PWM ///////////////////////////////////////////
float dtc_v=0.0f;
float dtc_w=0.0f;

// I2C ///////////////////////////////////////////
I2C i2c(PC_9,PA_8); // SDA, SCL (for K22F)
const int i2c_slave_addr1 =  0x56;
unsigned int value; // 10bit output of reading sensor AS5510

// SPI ///////////////////////////////////////////
SPI eeprom(PB_15, PB_14, PB_13); // EEPROM //(SPI_MOSI, SPI_MISO, SPI_SCK);
DigitalOut eeprom_cs(PB_12);
//FlashWriter writer(6);//2부터 7까지 되는듯 아마 sector
SPI enc(PC_12,PC_11,PC_10);
DigitalOut enc_cs(PD_2);
DigitalOut LED(PA_15);

// UART ///////////////////////////////////////////
Serial pc(PA_9,PA_10); //  _ UART

// CAN ///////////////////////////////////////////
CAN can(PB_8, PB_9, 1000000);
CANMessage msg;
void onMsgReceived()
{
    CAN_RX_HANDLER();
}

// Variables ///////////////////////////////////////////
State pos;
State vel;
State Vout;
State torq;
State pres_A;
State pres_B;
State cur;
State valve_pos;

State INIT_Vout;
State INIT_Valve_Pos;
State INIT_Pos;
State INIT_torq;

extern int CID_RX_CMD;
extern int CID_RX_REF_POSITION;
extern int CID_RX_REF_VALVE_POS;
extern int CID_RX_REF_PWM;

extern int CID_TX_INFO;
extern int CID_TX_POSITION;
extern int CID_TX_TORQUE;
extern int CID_TX_PRES;
extern int CID_TX_VOUT;
extern int CID_TX_VALVE_POSITION;




// =============================================================================
// =============================================================================
// =============================================================================

/*******************************************************************************
 *  REFERENCE MODE
 ******************************************************************************/
enum _REFERENCE_MODE {
    MODE_REF_NO_ACT = 0,                                //0
    MODE_REF_DIRECT,                                //1
    MODE_REF_COS_INC,                                  //2
    MODE_REF_LINE_INC,                                 //3
    MODE_REF_SIN_WAVE,                                  //4
    MODE_REF_SQUARE_WAVE,                                  //5
};

/*******************************************************************************
 *  CONTROL MODE
 ******************************************************************************/
enum _CONTROL_MODE {
    //control mode
    MODE_NO_ACT = 0,                                    //0
    MODE_VALVE_POSITION_CONTROL,                        //1
    MODE_JOINT_CONTROL,                                 //2

    MODE_VALVE_OPEN_LOOP,                               //3
    MODE_JOINT_ADAPTIVE_BACKSTEPPING,                   //4
    MODE_RL,                                            //5

    MODE_JOINT_POSITION_PRES_CONTROL_PWM,               //6
    MODE_JOINT_POSITION_PRES_CONTROL_VALVE_POSITION,    //7
    MODE_VALVE_POSITION_PRES_CONTROL_LEARNING,          //8

    MODE_TEST_CURRENT_CONTROL,                          //9
    MODE_TEST_PWM_CONTROL,                              //10

    MODE_CURRENT_CONTROL,                               //11
    MODE_JOINT_POSITION_TORQUE_CONTROL_CURRENT,         //12
    MODE_JOINT_POSITION_PRES_CONTROL_CURRENT,           //13
    MODE_VALVE_POSITION_TORQUE_CONTROL_LEARNING,                                            //14

    //utility
    MODE_TORQUE_SENSOR_NULLING = 20,                    //20
    MODE_VALVE_NULLING_AND_DEADZONE_SETTING,            //21
    MODE_FIND_HOME,                                     //22
    MODE_VALVE_GAIN_SETTING,                            //23
    MODE_PRESSURE_SENSOR_NULLING,                       //24
    MODE_PRESSURE_SENSOR_CALIB,                         //25
    MODE_ROTARY_FRICTION_TUNING,                        //26

    MODE_DDV_POS_VS_PWM_ID = 30,                           //30
    MODE_DDV_DEADZONE_AND_CENTER,                       //31
    MODE_DDV_POS_VS_FLOWRATE,                           //32
    MODE_SYSTEM_ID,                                     //33
    MODE_FREQ_TEST,                                     //34
    MODE_SEND_BUFFER,                                   //35
    MODE_SEND_OVER,                                     //36
    MODE_STEP_TEST,                                     //37
};

void SystemClock_Config(void)
{
    RCC_OscInitTypeDef RCC_OscInitStruct = {0};
    RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};

    /** Configure the main internal regulator output voltage
    */
    __HAL_RCC_PWR_CLK_ENABLE();
    __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
    /** Initializes the CPU, AHB and APB busses clocks
    */
    RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
    RCC_OscInitStruct.HSIState = RCC_HSI_ON;
    RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
    RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
    RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
    RCC_OscInitStruct.PLL.PLLM = 8;//8
    RCC_OscInitStruct.PLL.PLLN = 180; //180
    RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
    RCC_OscInitStruct.PLL.PLLQ = 2;
    RCC_OscInitStruct.PLL.PLLR = 2;
    if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK) {
        //Error_Handler();
    }
    /** Activate the Over-Drive mode
    */
    if (HAL_PWREx_EnableOverDrive() != HAL_OK) {
        //Error_Handler();
    }
    /** Initializes the CPU, AHB and APB busses clocks
    */
    RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
                                  |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
    RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
    RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
    RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV4;
    RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2;

    if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_5) != HAL_OK) {
        //Error_Handler();
    }
}

float u_past[num_array_u_past] = {0.0f};
float x_past[num_array_x_past] = {0.0f};
float x_future[num_array_x_future] = {0.0f};
float f_past[num_array_f_past] = {0.0f};
float f_future[num_array_f_future] = {0.0f};

float input_NN[num_input] = { 0.0f };

const float h1[num_input][16] = {
    {-2.1837844848632812f,2.0101635456085205f,0.04588095843791962f,-0.5758384466171265f,-2.3859260082244873f,2.2956244945526123f,1.8129379749298096f,1.5355861186981201f,-0.22093690931797028f,-2.2866008281707764f,0.8032577037811279f,-2.308483362197876f,-2.022364616394043f,-1.44899320602417f,-0.2571594715118408f,2.1746459007263184f},
{-1.2958452701568604f,1.0988526344299316f,-0.47577235102653503f,-0.19999195635318756f,-1.253292202949524f,1.2035913467407227f,0.16407740116119385f,-0.06658501923084259f,-0.47375917434692383f,-1.3384493589401245f,-0.3297125995159149f,-1.3080674409866333f,-0.06550247967243195f,-1.1850271224975586f,-0.20967772603034973f,1.4772138595581055f},
{-0.9654735326766968f,0.7904215455055237f,0.2810189127922058f,-0.8030968308448792f,-0.6013320088386536f,0.9044144153594971f,0.38279950618743896f,-0.35799551010131836f,-0.4297952651977539f,-0.605270266532898f,-0.19510450959205627f,-0.9962825775146484f,0.22925516963005066f,-0.08333431929349899f,0.05590221285820007f,0.581075131893158f},
{-0.38367339968681335f,0.14867372810840607f,0.3145712614059448f,-0.5230110287666321f,-0.14263394474983215f,-0.11347147822380066f,-0.11111853271722794f,0.1234128400683403f,0.2909422218799591f,0.46737194061279297f,0.8569537997245789f,-0.06507605314254761f,0.14980092644691467f,0.3622553050518036f,-0.2961459457874298f,0.11472762376070023f},
{1.2189306020736694f,-0.7193593978881836f,-0.08788592368364334f,-0.07936348766088486f,0.9448050260543823f,-1.0137641429901123f,-0.27093255519866943f,-0.020022014155983925f,0.6358230113983154f,1.3716148138046265f,0.8794701099395752f,0.8379188776016235f,0.45183658599853516f,0.9175698161125183f,-0.3865056037902832f,-1.2692279815673828f},
{3.590186834335327f,-3.4975996017456055f,0.1350027471780777f,2.3956410884857178f,3.5060923099517822f,-3.3447601795196533f,-1.807590126991272f,-1.1423075199127197f,0.1169700175523758f,2.501425266265869f,-2.12386155128479f,3.2425308227539062f,1.163952112197876f,1.4989044666290283f,-0.4132833778858185f,-2.9116435050964355f},
{-0.006196335889399052f,0.03741585835814476f,-0.2773531675338745f,-4.473310947418213f,-0.27634772658348083f,0.12931323051452637f,0.04171861708164215f,-3.9280078411102295f,3.5595314502716064f,-0.8166646361351013f,3.1788687705993652f,-0.24399122595787048f,-0.14087243378162384f,3.2437639236450195f,-0.15618428587913513f,-2.124624490737915f},
{-0.3596242070198059f,-0.171567901968956f,-0.35079166293144226f,-1.5157039165496826f,-0.5067394375801086f,-1.009583830833435f,4.817088603973389f,-0.4044037163257599f,-0.5577526688575745f,4.15724515914917f,2.5925800800323486f,-0.024581750854849815f,-2.805974245071411f,0.1435716301202774f,0.04303058981895447f,0.8803895711898804f},
{-0.11844680458307266f,0.7361156940460205f,0.021878330036997795f,-0.21332386136054993f,-0.1096244677901268f,-0.5460144877433777f,-1.9238289594650269f,0.47892892360687256f,-0.43380141258239746f,0.149037167429924f,1.3499506711959839f,0.0702681839466095f,2.0669760704040527f,1.0241925716400146f,-0.30555272102355957f,-0.980358898639679f},
{-0.02248750813305378f,-0.36836478114128113f,0.10568398237228394f,0.9146596193313599f,-0.09461541473865509f,0.10696340352296829f,-7.119680881500244f,-0.5392789840698242f,1.5476149320602417f,-0.5685486793518066f,-1.2822149991989136f,-0.6936250925064087f,5.557674407958984f,-0.6546996235847473f,0.3484981060028076f,-0.30507388710975647f},
{0.20626938343048096f,-0.1237199530005455f,0.2928805947303772f,0.5191757082939148f,0.1295856237411499f,0.30068445205688477f,3.9183223247528076f,-2.5037665367126465f,-2.3492307662963867f,-0.7124243974685669f,-0.8994795680046082f,-0.46030789613723755f,-3.5722081661224365f,1.8683465719223022f,0.26688337326049805f,-0.44005087018013f},
{-0.1235814169049263f,-0.31122681498527527f,-0.4815855920314789f,0.7879880666732788f,0.28719767928123474f,-0.08064402639865875f,0.6580206751823425f,-0.9771832823753357f,-0.07167230546474457f,-0.4789198040962219f,-0.7216929197311401f,0.22976653277873993f,-0.4228055477142334f,0.6537925004959106f,0.10493969917297363f,-0.35554176568984985f},
{-0.06496161222457886f,-0.01388863380998373f,0.1188524067401886f,0.5036965012550354f,0.1850457340478897f,-0.033558476716279984f,-0.004450216423720121f,-0.19332146644592285f,0.4412379264831543f,-0.12896977365016937f,-0.41583219170570374f,0.10597457736730576f,0.19178208708763123f,0.16101115942001343f,-0.22268100082874298f,-0.02980675920844078f},
{-0.03522493317723274f,-0.006083943881094456f,0.3326011002063751f,0.8511806726455688f,-0.12043089419603348f,-0.18758372962474823f,0.0751999244093895f,-0.3965107500553131f,0.9551570415496826f,-0.06834441423416138f,-0.6902320384979248f,0.23172923922538757f,-0.114925317466259f,-0.10242374241352081f,0.0479682981967926f,0.09168383479118347f},
{0.022258363664150238f,0.18318961560726166f,0.12307672202587128f,0.48128053545951843f,-0.029876722022891045f,-0.05051718279719353f,-0.03138022497296333f,0.24694964289665222f,0.18856319785118103f,-0.16514801979064941f,-0.39376768469810486f,-0.29822978377342224f,0.463131308555603f,0.18574166297912598f,0.0668090283870697f,-0.29248541593551636f},
{0.0049180155619978905f,-0.2213272899389267f,-0.483573853969574f,-0.2487296462059021f,-0.03675578907132149f,0.058383576571941376f,-0.43105602264404297f,-0.06576662510633469f,-0.6182113289833069f,0.0011734002036973834f,0.13351257145404816f,-0.008947508409619331f,-0.4899154603481293f,-0.21355555951595306f,-0.08245879411697388f,0.016924362629652023f},
{0.01701810397207737f,-0.03982752561569214f,0.08773337304592133f,0.9987277984619141f,-0.23670294880867004f,-0.003839959856122732f,0.5555870532989502f,-0.08025806397199631f,1.011113166809082f,0.003458167891949415f,-0.6364181637763977f,0.13058964908123016f,0.0927204042673111f,0.2622024714946747f,0.29427415132522583f,-0.36754608154296875f},
};

const float h2[16][16] = {
    {-2.674283027648926f,-19.75362205505371f,-0.1445033997297287f,7.779426097869873f,-0.3419828712940216f,0.6111319661140442f,-11.97992992401123f,-0.06811906397342682f,-0.5635062456130981f,-0.14760400354862213f,5.501676082611084f,-3.258754253387451f,4.001481056213379f,-4.758901119232178f,-0.9312655925750732f,0.7366103529930115f},
{-0.7434616684913635f,3.092632293701172f,-0.05838218703866005f,-1.307464361190796f,-0.35503754019737244f,-0.2724722623825073f,1.319793462753296f,-0.5438210368156433f,-0.42702803015708923f,0.2895788848400116f,0.7404713034629822f,-0.7428285479545593f,-1.0050708055496216f,0.47870922088623047f,-0.018869943916797638f,-0.18738682568073273f},
{-0.22745239734649658f,0.045928705483675f,-0.061119019985198975f,0.3182114362716675f,0.05568113923072815f,-0.0237321425229311f,-0.20225946605205536f,-0.08465918898582458f,0.3489862382411957f,0.0687277615070343f,0.2845090329647064f,0.3004753887653351f,0.31974947452545166f,-0.41946619749069214f,0.10742761939764023f,-0.005538635421544313f},
{0.1112687960267067f,0.17640958726406097f,-0.2894435524940491f,-0.029508210718631744f,-0.04560476168990135f,1.5404884815216064f,-0.5512773394584656f,0.08028208464384079f,0.18367992341518402f,0.21083085238933563f,-0.84100741147995f,0.3499418795108795f,-0.8262040019035339f,-0.06061369925737381f,0.7440986037254333f,0.7937288880348206f},
{1.2113111019134521f,-1.9501395225524902f,-0.3431500196456909f,1.5768429040908813f,-0.09858585894107819f,0.9739106893539429f,-1.2162216901779175f,-0.4212343394756317f,-0.17827872931957245f,-0.5757948756217957f,1.239785075187683f,-0.7534657716751099f,1.118362545967102f,-2.2174103260040283f,-1.7887440919876099f,1.190489649772644f},
{0.1777067929506302f,-1.8983210325241089f,-0.45307424664497375f,-2.1425976753234863f,-0.3015052080154419f,3.18461275100708f,-18.18368911743164f,-0.26703914999961853f,-0.48995697498321533f,0.3579089343547821f,-0.0014333250001072884f,0.4553060531616211f,-0.9638712406158447f,1.2035548686981201f,1.1829919815063477f,-0.458189994096756f},
{-0.2140461951494217f,1.3666870594024658f,-0.3260969817638397f,-0.3568636476993561f,-0.38453540205955505f,-0.4754043519496918f,-4.1757025718688965f,-0.0017336906166747212f,-0.15257470309734344f,0.13111665844917297f,0.1802264153957367f,-3.16748309135437f,-0.41486334800720215f,0.4974520206451416f,0.6583006381988525f,-0.8409538269042969f},
{-3.7754693031311035f,-0.8927761912345886f,0.18919311463832855f,0.14834003150463104f,-0.27119147777557373f,-0.024219632148742676f,-4.014308452606201f,-0.4794021248817444f,0.03760408237576485f,-0.5122731924057007f,0.20397134125232697f,-14.069512367248535f,-2.336082696914673f,0.6071321964263916f,-0.05089356750249863f,0.2677140235900879f},
{-0.498852401971817f,-0.3680291175842285f,-0.24363061785697937f,0.15364482998847961f,-0.08847162872552872f,-0.010616462677717209f,0.8844281435012817f,-0.3258861303329468f,0.06103590130805969f,-0.38046833872795105f,-1.264649510383606f,-1.2231134176254272f,-0.5222742557525635f,0.17115530371665955f,-1.6105502843856812f,-1.0130584239959717f},
{-0.10957334190607071f,2.477494955062866f,-0.13502129912376404f,0.39086753129959106f,-0.0030171233229339123f,-0.7244225144386292f,-2.244135618209839f,-0.6697809100151062f,-0.24925290048122406f,-0.0661936029791832f,0.22846399247646332f,1.8263009786605835f,-0.25706198811531067f,0.16737937927246094f,-0.31483668088912964f,0.2415773868560791f},
{0.5647047162055969f,-2.1719229221343994f,-0.09408819675445557f,0.08505217730998993f,-0.03321319818496704f,-0.80712890625f,0.4001992642879486f,-0.40854141116142273f,-0.050184011459350586f,0.12480869889259338f,0.6780188679695129f,-0.27626320719718933f,0.48307815194129944f,0.9442746639251709f,-0.8515918850898743f,-1.0515382289886475f},
{0.414889395236969f,-1.0162369012832642f,0.2711864113807678f,0.6045194864273071f,-0.12988048791885376f,0.11452009528875351f,-0.13452677428722382f,-0.3723098933696747f,0.11079556494951248f,-0.3499957025051117f,0.5277608633041382f,0.43197011947631836f,-0.054778654128313065f,0.09976109862327576f,0.19868263602256775f,0.9474283456802368f},
{-1.251092791557312f,-2.3950695991516113f,-0.15798500180244446f,0.44822025299072266f,-0.5053848028182983f,0.7921834588050842f,2.1565396785736084f,-0.3741874396800995f,-0.4484594464302063f,0.11803500354290009f,-0.009846722707152367f,0.02426297776401043f,0.3284200429916382f,-0.278394490480423f,-0.4773232340812683f,-0.630092442035675f},
{0.4361220896244049f,0.039302293211221695f,-0.2018718123435974f,0.09616457670927048f,0.07545611262321472f,-0.4409101605415344f,-0.870441734790802f,-0.319128155708313f,-0.33705347776412964f,0.06882216781377792f,-0.4649412930011749f,1.0272188186645508f,1.4670559167861938f,0.0006485587218776345f,-0.9369511604309082f,-1.3251198530197144f},
{0.4138670265674591f,0.1604653298854828f,0.056746453046798706f,0.036025404930114746f,0.3228367865085602f,-0.07083973288536072f,0.018455177545547485f,0.0059362053871154785f,0.40515169501304626f,0.014240056276321411f,-0.07738298177719116f,0.1407785713672638f,-0.13024571537971497f,-0.29546058177948f,-0.11976784467697144f,-0.35825538635253906f},
{-2.1636977195739746f,1.3953567743301392f,-0.002055981196463108f,-0.37223538756370544f,0.164200097322464f,0.08797144889831543f,-8.68027400970459f,0.04972444847226143f,-0.5795959830284119f,-0.22661522030830383f,0.4256688058376312f,-5.334555149078369f,-2.306769847869873f,-0.09140407294034958f,1.1666741371154785f,0.2710472345352173f},
};

const float h3[16][16] = {
    {-0.36079341173171997f,-3.9992425441741943f,-0.019920704886317253f,-3.7401278018951416f,0.35766279697418213f,0.7107656598091125f,0.15916572511196136f,-0.02236497588455677f,-0.6144473552703857f,-0.04320945963263512f,-0.11870327591896057f,0.0760134756565094f,-1.3407607078552246f,-0.35452646017074585f,0.8123229146003723f,0.6210054755210876f},
{0.047732532024383545f,-0.08606647700071335f,0.3044530749320984f,-0.5685889720916748f,-0.5859180688858032f,0.5168874859809875f,-0.3198729455471039f,-0.0616832859814167f,-0.7202454805374146f,-0.24511195719242096f,0.2780170738697052f,-0.3857530355453491f,0.6130155324935913f,-0.3128521144390106f,1.8281869888305664f,-1.2537225484848022f},
{0.07903262972831726f,0.2567390203475952f,-0.07798504829406738f,0.04248586297035217f,-0.1963958442211151f,-0.19260792434215546f,-0.4038352966308594f,0.015906542539596558f,0.15353140234947205f,0.030178606510162354f,0.2488909661769867f,0.13805970549583435f,-0.057077180594205856f,-0.235126793384552f,-0.3036302626132965f,0.08288257569074631f},
{-0.30922991037368774f,-0.5792930126190186f,-4.273653984069824f,1.1453341245651245f,-4.5254364013671875f,0.282318651676178f,0.059267595410346985f,-0.25690674781799316f,1.9092224836349487f,-0.7065148949623108f,-0.1480179727077484f,-0.08419273048639297f,-1.9301722049713135f,1.1525237560272217f,1.7244079113006592f,0.7795507311820984f},
{-0.39607733488082886f,0.04120592027902603f,0.1131146028637886f,0.022423356771469116f,0.09063010662794113f,-0.17578840255737305f,0.16012099385261536f,0.3626593053340912f,-0.17838427424430847f,-0.11053556203842163f,-0.10529157519340515f,-0.31317979097366333f,-0.23336799442768097f,-0.05953550338745117f,0.3211229145526886f,0.19986507296562195f},
{-0.37449589371681213f,-0.5102877020835876f,-2.3412106037139893f,-1.9704302549362183f,-0.718756377696991f,0.4018186628818512f,-0.3192301094532013f,-0.37182047963142395f,0.11803273111581802f,-0.37043070793151855f,-0.25327548384666443f,-0.23666924238204956f,-0.43877601623535156f,0.18859024345874786f,-1.599037766456604f,-0.23787960410118103f},
{0.4110594093799591f,0.3641268312931061f,-0.24094732105731964f,0.39241111278533936f,1.028276801109314f,0.09239723533391953f,-0.08670487999916077f,-0.25336313247680664f,-0.04216204956173897f,-0.06259563565254211f,-0.1344406008720398f,0.35313835740089417f,-2.1582298278808594f,0.9374165534973145f,0.3446822166442871f,-0.48981598019599915f},
{-0.40892091393470764f,-0.05935406684875488f,-0.2623085081577301f,0.24000565707683563f,0.4653308093547821f,-0.13498064875602722f,-0.23312048614025116f,-0.390264093875885f,0.1819913387298584f,-0.1559126079082489f,-0.14134526252746582f,-0.0003446042537689209f,-0.16760802268981934f,-0.46420595049858093f,-0.04577748477458954f,-0.024266792461276054f},
{0.10697010159492493f,0.18819847702980042f,-0.37870171666145325f,0.21184906363487244f,-0.37222859263420105f,0.013411798514425755f,-0.1382003128528595f,0.3493293821811676f,-0.360889196395874f,-0.3875247836112976f,0.42142823338508606f,-0.3482915461063385f,-0.3289247751235962f,-0.010594150982797146f,0.09620395302772522f,-0.06898030638694763f},
{0.2847062647342682f,0.018552124500274658f,0.11435768008232117f,0.36562982201576233f,-0.047046810388565063f,0.1384449154138565f,0.2430230677127838f,0.2909286320209503f,-0.2802048921585083f,0.18043199181556702f,0.41849127411842346f,-0.287167489528656f,0.24782028794288635f,-0.3141365051269531f,-0.10168051719665527f,0.010465055704116821f},
{0.15459725260734558f,0.7376908659934998f,0.28115618228912354f,-0.6975672245025635f,-0.5065810084342957f,-0.3017660677433014f,-0.08742031455039978f,-0.0630878359079361f,-0.9642277359962463f,-0.2220277339220047f,-0.020114075392484665f,-0.4160120189189911f,-0.6593955755233765f,-0.25608909130096436f,0.08111029863357544f,0.36404433846473694f},
{-0.408692330121994f,0.11722688376903534f,-2.6202144622802734f,1.1614540815353394f,0.04688110575079918f,0.8050221800804138f,-0.10356326401233673f,0.040458135306835175f,-1.7546080350875854f,-0.3304281532764435f,0.02475929632782936f,-0.40160971879959106f,1.5910406112670898f,-0.8608219027519226f,-0.8164851069450378f,0.849300742149353f},
{-0.2991822361946106f,-16.444902420043945f,-2.7731211185455322f,-9.340137481689453f,-0.21075564622879028f,-0.1905771791934967f,-0.29088878631591797f,0.1455707550048828f,0.9463095664978027f,-0.4181814193725586f,-0.044228196144104004f,-0.44137144088745117f,-3.0297417640686035f,0.3898687958717346f,-0.4988105893135071f,-1.0869044065475464f},
{-0.2675279378890991f,-0.6821674108505249f,-0.42561009526252747f,0.20795567333698273f,0.15388953685760498f,-0.2611711621284485f,-0.5058139562606812f,-0.7550562024116516f,-0.1124289333820343f,-0.8204157948493958f,-0.48899734020233154f,-0.7760970592498779f,0.9054858088493347f,-0.5096421241760254f,-0.6139748096466064f,0.4697928726673126f},
{-0.015470266342163086f,0.3406878411769867f,-0.34045615792274475f,0.7845275402069092f,0.12758617103099823f,-0.1876579076051712f,0.05196094512939453f,0.020785843953490257f,-5.119916915893555f,-0.5137317776679993f,0.1519099771976471f,-0.3556460440158844f,-1.3449710607528687f,-0.5167357921600342f,-8.097357749938965f,1.6800681352615356f},
{0.1863725483417511f,0.4552655518054962f,-1.4158952236175537f,-2.1374547481536865f,0.7595136761665344f,-0.04729481041431427f,0.04860696196556091f,0.06409500539302826f,1.3406081199645996f,0.18544192612171173f,-0.5370227098464966f,0.20714588463306427f,1.428971290588379f,-0.014740538783371449f,-0.4222463369369507f,-1.120627760887146f},
};

const float hout[16] = { 0.45773375034332275f,0.06918291747570038f,-0.12925687432289124f,-0.15688492357730865f,-0.09581243246793747f,0.12980027496814728f,0.05758979171514511f,-0.07756929844617844f,-0.07437136024236679f,0.088389091193676f,0.1648382991552353f,-0.1090453714132309f,-0.07618726044893265f,0.10542070865631104f,-0.10273952782154083f,-0.09904715418815613f };

const float b1[16] = { 0.3319792151451111f,0.38004234433174133f,-1.7917866706848145f,0.8671742081642151f,0.7934799790382385f,0.8670303821563721f,-0.651479184627533f,4.418480396270752f,-1.6263774633407593f,-0.5555577278137207f,-0.8048836588859558f,1.0582845211029053f,-0.5338819622993469f,-2.1279237270355225f,-1.087764859199524f,2.0707762241363525f };

const float b2[16] = { 1.2374228239059448f,1.128933072090149f,-1.5688477754592896f,-0.9324873685836792f,-0.827792227268219f,-0.05313319340348244f,0.6596731543540955f,-0.6443398594856262f,-1.352556824684143f,-2.093569755554199f,-0.12882685661315918f,-0.05392090231180191f,-1.7019206285476685f,1.365263819694519f,1.3740285634994507f,1.7110040187835693f };

const float b3[16] = { -1.963319182395935f,0.3110598921775818f,1.3809770345687866f,1.4498616456985474f,1.02727472782135f,0.8841015696525574f,-0.6412962675094604f,-1.1947987079620361f,-2.0401856899261475f,0.14284981787204742f,-0.3684021830558777f,-0.4421199858188629f,-1.098542332649231f,2.0177974700927734f,-1.0107595920562744f,-0.3846563398838043f };

const float bout[1] = { -0.2631767988204956f };


float valve_ref_pos_buffer[10] = {0.0f};

/////////////////////////////////////////////////////////////////////////////////////////////RL
float input_RL[num_input_RL] = { 0.0f };

//Critic Networks
float hc1[num_input_RL][num_hidden_unit1] = {0.0f};
float bc1[num_hidden_unit1] = {0.0f};
float hc2[num_hidden_unit1][num_hidden_unit2] = {0.0f};
float bc2[num_hidden_unit2] = {0.0f};
float hc3[num_hidden_unit2] = {0.0f};
float bc3 = 0.0f;

//Critic Networks Temporary
float hc1_temp[num_input_RL][num_hidden_unit1] = {0.0f};
float bc1_temp[num_hidden_unit1] = {0.0f};
float hc2_temp[num_hidden_unit1][num_hidden_unit2] = {0.0f};
float bc2_temp[num_hidden_unit2] = {0.0f};
float hc3_temp[num_hidden_unit2] = {0.0f};
float bc3_temp = 0.0f;

//Actor Networks
float ha1[num_input_RL][num_hidden_unit1] = {0.0f};
float ba1[num_hidden_unit1] = {0.0f};
float ha2[num_hidden_unit1][num_hidden_unit2] = {0.0f};
float ba2[num_hidden_unit2] = {0.0f};
float ha3[num_hidden_unit2][2] = {0.0f};
float ba3[2] = {0.0f};

//Actor Networks Temporary
float ha1_temp[num_input_RL][num_hidden_unit1] = {0.0f};
float ba1_temp[num_hidden_unit1] = {0.0f};
float ha2_temp[num_hidden_unit1][num_hidden_unit2] = {0.0f};
float ba2_temp[num_hidden_unit2] = {0.0f};
float ha3_temp[num_hidden_unit2][2] = {0.0f};
float ba3_temp[2] = {0.0f};

float VALVE_POS_RAW_NN = 0.0f;
float DDV_JOINT_POS_FF(float REF_JOINT_VEL);

/////////////////////////////////////////////RL tuning
float Gradient_Limit = 0.5f;
float gradient_rate_actor = 0.001f;
float gradient_rate_critic = 0.001f;
//////////////////////////////////////////////////////////////////////////////

float Critic_Network_Temp(float *arr)
{
    float output1[num_hidden_unit1] = { 0.0f };
    float output2[num_hidden_unit2] = { 0.0f };
    float output = 0.0f;
    for (int index2 = 0; index2 < num_hidden_unit1; index2++) {
        for (int index1 = 0; index1 < num_input_RL; index1++) {
            output1[index2] = output1[index2] + hc1_temp[index1][index2] * arr[index1];
        }
        //ReLU
        output1[index2] = output1[index2] + bc1_temp[index2];
        hx_c_sum[index2] = output1[index2];
        if (output1[index2] < 0) {
            output1[index2] = 0;
        }
        //tanh
        //output1[index2] = tanh(output1[index2] + bc1_temp[index2]);
    }
    for (int index2 = 0; index2 < num_hidden_unit2; index2++) {
        for (int index1 = 0; index1 < num_hidden_unit1; index1++) {
            output2[index2] = output2[index2] + hc2_temp[index1][index2] * output1[index1];
        }
        //ReLU
        output2[index2] = output2[index2] + bc2_temp[index2];
        hxh_c_sum[index2] = output2[index2];
        if (output2[index2] < 0) {
            output2[index2] = 0;
        }
        //tanh
        //output2[index2] = tanh(output2[index2] + bc2_temp[index2]);
    }
    for (int index2 = 0; index2 < 1; index2++) {
        for (int index1 = 0; index1 < num_hidden_unit2; index1++) {
            output = output + hc3_temp[index1] * output2[index1];
        }
        output = output + bc3_temp;
        hxhh_c_sum = output;
    }
    return output;
}


void Actor_Network(float *arr)
{
    float output1[num_hidden_unit1] = {0.0f};
    float output2[num_hidden_unit2] = {0.0f};
    float output[2] = {0.0f};

    for (int index2 = 0; index2 < num_hidden_unit1; index2++) {
        for (int index1 = 0; index1 < num_input_RL; index1++) {
            output1[index2] = output1[index2] + ha1_temp[index1][index2] * arr[index1];
        }
        output1[index2] = output1[index2] + ba1_temp[index2];
        hx_a_sum[index2] = output1[index2];
        if (output1[index2] < 0) {
            output1[index2] = 0;
        }
    }
    for (int index2 = 0; index2 < num_hidden_unit2; index2++) {
        for (int index1 = 0; index1 < num_hidden_unit1; index1++) {
            output2[index2] = output2[index2] + ha2_temp[index1][index2] * output1[index1];
        }
        output2[index2] = output2[index2] + ba2_temp[index2];
        hxh_a_sum[index2] = output2[index2];
        if (output2[index2] < 0) {
            output2[index2] = 0;
        }
    }
    for (int index2 = 0; index2 < 2; index2++) {
        for (int index1 = 0; index1 < num_hidden_unit2; index1++) {
            output[index2] = output[index2] + ha3_temp[index1][index2] * output2[index1];
        }
        hxhh_a_sum[index2] = output[index2] + ba3_temp[index2];
    }

    mean_before_SP = output[0] + ba3_temp[0];    //SP = softplus
    deviation_before_SP = output[1] + ba3_temp[1];
    //Softplus
    mean = log(1.0f+exp(mean_before_SP));
    deviation = log(1.0f+exp(deviation_before_SP));
    logging2 = mean;
    logging4 = deviation;
}


void Actor_Network_Old(float *arr)
{
    float output1[num_hidden_unit1] = {0.0f};
    float output2[num_hidden_unit2] = {0.0f};
    float output[2] = {0.0f};

    for (int index2 = 0; index2 < num_hidden_unit1; index2++) {
        for (int index1 = 0; index1 < num_input_RL; index1++) {
            output1[index2] = output1[index2] + ha1[index1][index2] * arr[index1];
        }
        output1[index2] = output1[index2] + ba1[index2];
        if (output1[index2] < 0) {
            output1[index2] = 0;
        }
    }
    for (int index2 = 0; index2 < num_hidden_unit2; index2++) {
        for (int index1 = 0; index1 < num_hidden_unit1; index1++) {
            output2[index2] = output2[index2] + ha2[index1][index2] * output1[index1];
        }
        output2[index2] = output2[index2] + ba2[index2];
        if (output2[index2] < 0) {
            output2[index2] = 0;
        }
    }
    for (int index2 = 0; index2 < 2; index2++) {
        for (int index1 = 0; index1 < num_hidden_unit2; index1++) {
            output[index2] = output[index2] + ha3[index1][index2] * output2[index1];
        }
    }
    mean_old = output[0] + ba3[0];
    deviation_old = output[1] + ba3[1];
    //Softplus
    mean_old = log(1.0f+exp(mean_old));
    deviation_old = log(1.0f+exp(deviation_old));
}

float Grad_Normal_Dist_Mean(float mean, float deviation, float action)
{
    float grad_mean = 0.0f;
    grad_mean = (action-mean)*exp(-(action-mean)*(action-mean)/(2.0f*deviation*deviation))/(sqrt(2.0f*PI)*deviation*deviation*deviation);
    return grad_mean;
}

float Grad_Normal_Dist_Deviation(float mean, float deviation, float action)
{
    float grad_dev = 0.0f;
    grad_dev = exp(-(action-mean)*(action-mean)/(2.0f*deviation*deviation))*(-1.0f/(sqrt(2.0f*PI)*deviation*deviation) + (action-mean)*(action-mean)/(sqrt(2.0f*PI)*deviation*deviation*deviation*deviation));
    return grad_dev;
}

float ReLU(float x)
{
    if (x >= 0) {
        return x;
    } else {
        return 0.0f;
    }
}

void update_Critic_Networks(float (*arr)[num_input_RL])
{
    float G_hc1[num_input_RL][num_hidden_unit1] = {0.0f};
    float G_bc1[num_hidden_unit1] = {0.0f};
    for (int index2 = 0; index2 < num_hidden_unit1; index2++) {
        for (int index1 = 0; index1 < num_input_RL; index1++) {
            for (int n=0; n<batch_size; n++) {
                float d_V_d_hc1 = 0.0f;
                for(int k=0; k<num_hidden_unit2; k++) {
                    if (hxh_c_sum_array[n][k] >= 0) {
                        if (hx_c_sum_array[n][index2] > 0) {
                            d_V_d_hc1 = d_V_d_hc1 + arr[n][index1]*hc2_temp[index2][k]*hc3_temp[k];
                        }
                    }
                }
                G_hc1[index1][index2] = G_hc1[index1][index2] + 2.0f*(return_G[n]-V[n])*(-d_V_d_hc1);
            }
            G_hc1[index1][index2] = G_hc1[index1][index2] / batch_size;
            if(G_hc1[index1][index2] > Gradient_Limit) G_hc1[index1][index2] = Gradient_Limit;
            else if (G_hc1[index1][index2] < -Gradient_Limit) G_hc1[index1][index2] = -Gradient_Limit;
            //hc1_temp[index1][index2] = hc1_temp[index1][index2] - gradient_rate_critic * G_hc1[index1][index2];
        }
        for (int n=0; n<batch_size; n++) {
            float d_V_d_bc1 = 0.0f;
            for(int k=0; k<num_hidden_unit2; k++) {
                if (hxh_c_sum_array[n][k] >= 0) {
                    if (hx_c_sum_array[n][index2] > 0) {
                        d_V_d_bc1 = d_V_d_bc1 + hc2_temp[index2][k]*hc3_temp[k];
                    }
                }
            }
            G_bc1[index2] = G_bc1[index2] + 2.0f*(return_G[n]-V[n])*(-d_V_d_bc1);
        }
        G_bc1[index2] = G_bc1[index2] / batch_size;
        if(G_bc1[index2] > Gradient_Limit) G_bc1[index2] = Gradient_Limit;
        else if (G_bc1[index2] < -Gradient_Limit) G_bc1[index2] = -Gradient_Limit;
        //bc1_temp[index2] = bc1_temp[index2] - gradient_rate_critic * G_bc1[index2];
    }


    float G_hc2[num_hidden_unit1][num_hidden_unit2] = {0.0f};
    float G_bc2[num_hidden_unit2] = {0.0f};
    for (int index2 = 0; index2 < num_hidden_unit2; index2++) {
        for (int index1 = 0; index1 < num_hidden_unit1; index1++) {
            for (int n=0; n<batch_size; n++) {
                float d_V_d_hc2 = 0.0f;
                if (hxh_c_sum_array[n][index2] >= 0) {
                    if (hx_c_sum_array[n][index1] > 0) {
                        d_V_d_hc2 = hx_c_sum_array[n][index1]*hc3_temp[index2];
                    }
                }
                G_hc2[index1][index2] = G_hc2[index1][index2] + 2.0f*(return_G[n]-V[n])*(-d_V_d_hc2);
            }
            G_hc2[index1][index2] = G_hc2[index1][index2] / batch_size;
            if(G_hc2[index1][index2] > Gradient_Limit) G_hc2[index1][index2] = Gradient_Limit;
            else if (G_hc2[index1][index2] < -Gradient_Limit) G_hc2[index1][index2] = -Gradient_Limit;
            //hc2_temp[index1][index2] = hc2_temp[index1][index2] - gradient_rate_critic * G_hc2[index1][index2];
        }
        for (int n=0; n<batch_size; n++) {
            float d_V_d_bc2 = 0.0f;
            if (hxh_c_sum_array[n][index2] >= 0) {
                d_V_d_bc2 = hc3_temp[index2];
            }
            G_bc2[index2] = G_bc2[index2] + 2.0f*(return_G[n]-V[n])*(-d_V_d_bc2);
        }
        G_bc2[index2] = G_bc2[index2] / batch_size;
        if(G_bc2[index2] > Gradient_Limit) G_bc2[index2] = Gradient_Limit;
        else if (G_bc2[index2] < -Gradient_Limit) G_bc2[index2] = -Gradient_Limit;
        //bc2_temp[index2] = bc2_temp[index2] - gradient_rate_critic * G_bc2[index2];
    }

    float G_hc3[num_hidden_unit2]= {0.0f};
    float G_bc3 = 0.0f;
    for (int index2 = 0; index2 < 1; index2++) {
        for (int index1 = 0; index1 < num_hidden_unit2; index1++) {
            for (int n=0; n<batch_size; n++) {
                float d_V_d_hc3 = 0.0f;
                if (hxh_c_sum_array[n][index1] >= 0) {
                    d_V_d_hc3 = d_V_d_hc3 + hxh_c_sum_array[n][index1];
                }
                G_hc3[index1] = G_hc3[index1] + 2.0f*(return_G[n]-V[n])*(-d_V_d_hc3);
            }
            G_hc3[index1] = G_hc3[index1] / batch_size;
            if(G_hc3[index1] > Gradient_Limit) G_hc3[index1] = Gradient_Limit;
            else if (G_hc3[index1] < -Gradient_Limit) G_hc3[index1] = -Gradient_Limit;
            //hc3_temp[index1] = hc3_temp[index1] - gradient_rate_critic * G_hc3[index1];
        }
        for (int n=0; n<batch_size; n++) {
            float d_V_d_bc3 = 0.0f;
            d_V_d_bc3 = 1.0f;
            G_bc3 = G_bc3 + 2.0f*(return_G[n]-V[n])*(-d_V_d_bc3);
        }
        G_bc3 = G_bc3 / batch_size;
        if(G_bc3 > Gradient_Limit) G_bc3 = Gradient_Limit;
        else if (G_bc3 < -Gradient_Limit) G_bc3 = -Gradient_Limit;
        //bc3_temp = bc3_temp - gradient_rate_critic * G_bc3;
    }

    // Simultaneous Update
    for (int index2 = 0; index2 < num_hidden_unit1; index2++) {
        for (int index1 = 0; index1 < num_input_RL; index1++) {
            hc1_temp[index1][index2] = hc1_temp[index1][index2] - gradient_rate_critic * G_hc1[index1][index2];
        }
        bc1_temp[index2] = bc1_temp[index2] - gradient_rate_critic * G_bc1[index2];
    }
    for (int index2 = 0; index2 < num_hidden_unit2; index2++) {
        for (int index1 = 0; index1 < num_hidden_unit1; index1++) {
            hc2_temp[index1][index2] = hc2_temp[index1][index2] - gradient_rate_critic * G_hc2[index1][index2];
        }
        bc2_temp[index2] = bc2_temp[index2] - gradient_rate_critic * G_bc2[index2];
    }
    for (int index2 = 0; index2 < 1; index2++) {
        for (int index1 = 0; index1 < num_hidden_unit2; index1++) {
            hc3_temp[index1] = hc3_temp[index1] - gradient_rate_critic * G_hc3[index1];
        }
        bc3_temp = bc3_temp - gradient_rate_critic * G_bc3;
    }
}

///////////////////////////Softplus//////////////////////////////////
void update_Actor_Networks(float (*arr)[num_input_RL])
{
    

    float G_ha1[num_input_RL][num_hidden_unit1] = {0.0f};
    float G_ba1[num_hidden_unit1] = {0.0f};

    for (int index2 = 0; index2 < num_hidden_unit1; index2++) {
        for (int index1 = 0; index1 < num_input_RL; index1++) {
            for (int n=0; n<batch_size; n++) {
                float d_x_d_ha1 = 0.0f;
                float d_y_d_ha1 = 0.0f;
                if((advantage[n] >= 0.0f && ratio[n] >= 1.0f + epsilon) || (advantage[n] < 0.0f && ratio[n] < 1.0f - epsilon)) {
                    G_ha1[index1][index2] = G_ha1[index1][index2];
                } else {
                    for(int k=0; k<num_hidden_unit2; k++) {
                        if (hxh_a_sum_array[n][k] >= 0) {
                            if (hx_a_sum_array[n][index2] > 0) {
                                d_x_d_ha1 = d_x_d_ha1 + arr[n][index1]*ha2_temp[index2][k]*ha3_temp[k][0];
                                d_y_d_ha1 = d_y_d_ha1 + arr[n][index1]*ha2_temp[index2][k]*ha3_temp[k][1];
                            }
                        }
                    }
                    float d_mean_d_ha1 = 0.0f;
                    float d_dev_d_ha1 = 0.0f;
                    d_mean_d_ha1 = exp(hxhh_a_sum_array[n][0])/(1.0f+exp(hxhh_a_sum_array[n][0]))*d_x_d_ha1;
                    d_dev_d_ha1 = exp(hxhh_a_sum_array[n][1])/(1.0f+exp(hxhh_a_sum_array[n][1]))*d_y_d_ha1;

                    G_ha1[index1][index2] = G_ha1[index1][index2] + advantage[n]/pi_old[n]*(d_mean_d_ha1*Grad_Normal_Dist_Mean(mean_array[n],deviation_array[n],action_array[n])+d_dev_d_ha1*Grad_Normal_Dist_Deviation(mean_array[n],deviation_array[n],action_array[n]));
                }
            }
            G_ha1[index1][index2] = -G_ha1[index1][index2] / batch_size;
            if(G_ha1[index1][index2] > Gradient_Limit) G_ha1[index1][index2] = Gradient_Limit;
            else if (G_ha1[index1][index2] < -Gradient_Limit) G_ha1[index1][index2] = -Gradient_Limit;
            //ha1_temp[index1][index2] = ha1_temp[index1][index2] - gradient_rate_actor * G_ha1[index1][index2];
        }

        for (int n=0; n<batch_size; n++) {
            float d_x_d_ba1 = 0.0f;
            float d_y_d_ba1 = 0.0f;
            if((advantage[n] >= 0.0f && ratio[n] >= 1.0f + epsilon) || (advantage[n] < 0.0f && ratio[n] < 1.0f - epsilon))  {
                G_ba1[index2] = G_ba1[index2];
            } else {
                for(int k=0; k<num_hidden_unit2; k++) {
                    if (hxh_a_sum_array[n][k] >= 0) {
                        if (hx_a_sum_array[n][index2] > 0) {
                            d_x_d_ba1 = d_x_d_ba1 + ha2_temp[index2][k]*ha3_temp[k][0];
                            d_y_d_ba1 = d_y_d_ba1 + ha2_temp[index2][k]*ha3_temp[k][1];
                        }
                    }
                }
                float d_mean_d_ba1 = 0.0f;
                float d_dev_d_ba1 = 0.0f;
                d_mean_d_ba1 = exp(hxhh_a_sum_array[n][0])/(1.0f+exp(hxhh_a_sum_array[n][0]))*d_x_d_ba1;
                d_dev_d_ba1 = exp(hxhh_a_sum_array[n][1])/(1.0f+exp(hxhh_a_sum_array[n][1]))*d_y_d_ba1;

                G_ba1[index2] = G_ba1[index2] + advantage[n]/pi_old[n]*(d_mean_d_ba1*Grad_Normal_Dist_Mean(mean_array[n],deviation_array[n],action_array[n])+d_dev_d_ba1*Grad_Normal_Dist_Deviation(mean_array[n],deviation_array[n],action_array[n]));
            }
        }
        G_ba1[index2] = -G_ba1[index2] / batch_size;
        if(G_ba1[index2] > Gradient_Limit) G_ba1[index2] = Gradient_Limit;
        else if (G_ba1[index2] < -Gradient_Limit) G_ba1[index2] = -Gradient_Limit;
        //ba1_temp[index2] = ba1_temp[index2] - gradient_rate_actor * G_ba1[index2];
    }

    float G_ha2[num_hidden_unit1][num_hidden_unit2] = {0.0f};
    float G_ba2[num_hidden_unit2] = {0.0f};

    for (int index2 = 0; index2 < num_hidden_unit2; index2++) {
        for (int index1 = 0; index1 < num_hidden_unit1; index1++) {
            for (int n=0; n<batch_size; n++) {
                float d_x_d_ha2 = 0.0f;
                float d_y_d_ha2 = 0.0f;
                if((advantage[n] >= 0.0f && ratio[n] >= 1.0f + epsilon) || (advantage[n] < 0.0f && ratio[n] < 1.0f - epsilon)) {
                    G_ha2[index1][index2] = G_ha2[index1][index2];
                } else {
                    if (hxh_a_sum_array[n][index2] >= 0) {
                        if (hx_a_sum_array[n][index1] > 0) {
                            d_x_d_ha2 = hx_a_sum_array[n][index1]*ha3_temp[index2][0];
                            d_y_d_ha2 = hx_a_sum_array[n][index1]*ha3_temp[index2][1];
                        }
                    }

                    float d_mean_d_ha2 = 0.0f;
                    float d_dev_d_ha2 = 0.0f;
                    d_mean_d_ha2 = exp(hxhh_a_sum_array[n][0])/(1.0f+exp(hxhh_a_sum_array[n][0]))*d_x_d_ha2;
                    d_dev_d_ha2 = exp(hxhh_a_sum_array[n][1])/(1.0f+exp(hxhh_a_sum_array[n][1]))*d_y_d_ha2;

                    G_ha2[index1][index2] = G_ha2[index1][index2] + advantage[n]/pi_old[n]*(d_mean_d_ha2*Grad_Normal_Dist_Mean(mean_array[n],deviation_array[n],action_array[n])+d_dev_d_ha2*Grad_Normal_Dist_Deviation(mean_array[n],deviation_array[n],action_array[n]));
                }
            }
            G_ha2[index1][index2] = -G_ha2[index1][index2] / batch_size;
            if(G_ha2[index1][index2] > Gradient_Limit) G_ha2[index1][index2] = Gradient_Limit;
            else if (G_ha2[index1][index2] < -Gradient_Limit) G_ha2[index1][index2] = -Gradient_Limit;
            //ha2_temp[index1][index2] = ha2_temp[index1][index2] - gradient_rate_actor * G_ha2[index1][index2];
        }

        for (int n=0; n<batch_size; n++) {
            float d_x_d_ba2 = 0.0f;
            float d_y_d_ba2 = 0.0f;
            if((advantage[n] >= 0.0f && ratio[n] >= 1.0f + epsilon) || (advantage[n] < 0.0f && ratio[n] < 1.0f - epsilon))  {
                G_ba2[index2] = G_ba2[index2];
            } else {

                if (hxh_a_sum_array[n][index2] >= 0) {
                    d_x_d_ba2 = ha3_temp[index2][0];
                    d_y_d_ba2 = ha3_temp[index2][1];
                }
                float d_mean_d_ba2= 0.0f;
                float d_dev_d_ba2= 0.0f;
                d_mean_d_ba2 = exp(hxhh_a_sum_array[n][0])/(1.0f+exp(hxhh_a_sum_array[n][0]))*d_x_d_ba2;
                d_dev_d_ba2 = exp(hxhh_a_sum_array[n][1])/(1.0f+exp(hxhh_a_sum_array[n][1]))*d_y_d_ba2;

                G_ba2[index2] = G_ba2[index2] + advantage[n]/pi_old[n]*(d_mean_d_ba2*Grad_Normal_Dist_Mean(mean_array[n],deviation_array[n],action_array[n])+d_dev_d_ba2*Grad_Normal_Dist_Deviation(mean_array[n],deviation_array[n],action_array[n]));
            }
        }
        G_ba2[index2] = -G_ba2[index2] / batch_size;
        if(G_ba2[index2] > Gradient_Limit) G_ba2[index2] = Gradient_Limit;
        else if (G_ba2[index2] < -Gradient_Limit) G_ba2[index2] = -Gradient_Limit;
        //ba2_temp[index2] = ba2_temp[index2] - gradient_rate_actor * G_ba2[index2];
    }

    float G_ha3[num_hidden_unit2][2] = {0.0f};
    float G_ba3[2] = {0.0f};

    for (int index2 = 0; index2 < 2; index2++) {
        for (int index1 = 0; index1 < num_hidden_unit2; index1++) {
            for (int n=0; n<batch_size; n++) {
                float d_x_d_ha3 = 0.0f;
                float d_y_d_ha3 = 0.0f;
                if((advantage[n] >= 0.0f && ratio[n] >= 1.0f + epsilon) || (advantage[n] < 0.0f && ratio[n] < 1.0f - epsilon)) {
                    G_ha3[index1][index2] = G_ha3[index1][index2];
                } else {
                    if (hxh_a_sum_array[n][index1] >= 0) {
                        if (hx_a_sum_array[n][index1] > 0) {
                            d_x_d_ha3 = hxh_a_sum_array[n][index1];
                            d_y_d_ha3 = hxh_a_sum_array[n][index1];
                        }
                    }
                    float d_mean_d_ha3 = 0.0f;
                    float d_dev_d_ha3 = 0.0f;
                    d_mean_d_ha3 = exp(hxhh_a_sum_array[n][0])/(1.0f+exp(hxhh_a_sum_array[n][0]))*d_x_d_ha3;
                    d_dev_d_ha3 = exp(hxhh_a_sum_array[n][1])/(1.0f+exp(hxhh_a_sum_array[n][1]))*d_y_d_ha3;

                    G_ha3[index1][index2] = G_ha3[index1][index2] + advantage[n]/pi_old[n]*(d_mean_d_ha3*Grad_Normal_Dist_Mean(mean_array[n],deviation_array[n],action_array[n])+d_dev_d_ha3*Grad_Normal_Dist_Deviation(mean_array[n],deviation_array[n],action_array[n]));
                }
            }
            G_ha3[index1][index2] = -G_ha3[index1][index2] / batch_size;
            if(G_ha3[index1][index2] > Gradient_Limit) G_ha3[index1][index2] = Gradient_Limit;
            else if (G_ha3[index1][index2] < -Gradient_Limit) G_ha3[index1][index2] = -Gradient_Limit;
            //ha3_temp[index1][index2] = ha3_temp[index1][index2] - gradient_rate_actor * G_ha3[index1][index2];
        }

        for (int n=0; n<batch_size; n++) {
            float d_x_d_ba3 = 0.0f;
            float d_y_d_ba3 = 0.0f;
            if((advantage[n] >= 0.0f && ratio[n] >= 1.0f + epsilon) || (advantage[n] < 0.0f && ratio[n] < 1.0f - epsilon))  {
                G_ba3[index2] = G_ba3[index2];
            } else {

                d_x_d_ba3 = 1.0f;
                d_y_d_ba3 = 1.0f;

                float d_mean_d_ba3= 0.0f;
                float d_dev_d_ba3= 0.0f;
                d_mean_d_ba3 = exp(hxhh_a_sum_array[n][0])/(1.0f+exp(hxhh_a_sum_array[n][0]))*d_x_d_ba3;
                d_dev_d_ba3 = exp(hxhh_a_sum_array[n][1])/(1.0f+exp(hxhh_a_sum_array[n][1]))*d_y_d_ba3;

                G_ba3[index2] = G_ba3[index2] + advantage[n]/pi_old[n]*(d_mean_d_ba3*Grad_Normal_Dist_Mean(mean_array[n],deviation_array[n],action_array[n])+d_dev_d_ba3*Grad_Normal_Dist_Deviation(mean_array[n],deviation_array[n],action_array[n]));
            }
        }
        G_ba3[index2] = -G_ba3[index2] / batch_size;
        if(G_ba3[index2] > Gradient_Limit) G_ba3[index2] = Gradient_Limit;
        else if (G_ba3[index2] < -Gradient_Limit) G_ba3[index2] = -Gradient_Limit;
        //ba3_temp[index2] = ba3_temp[index2] - gradient_rate_actor * G_ba3[index2];
    }

    // Simultaneous Update
    for (int index2 = 0; index2 < num_hidden_unit1; index2++) {
        for (int index1 = 0; index1 < num_input_RL; index1++) {
            ha1_temp[index1][index2] = ha1_temp[index1][index2] - gradient_rate_actor * G_ha1[index1][index2];
        }
        ba1_temp[index2] = ba1_temp[index2] - gradient_rate_actor * G_ba1[index2];
    }
    for (int index2 = 0; index2 < num_hidden_unit2; index2++) {
        for (int index1 = 0; index1 < num_hidden_unit1; index1++) {
            ha2_temp[index1][index2] = ha2_temp[index1][index2] - gradient_rate_actor * G_ha2[index1][index2];
        }
        ba2_temp[index2] = ba2_temp[index2] - gradient_rate_actor * G_ba2[index2];
    }
    for (int index2 = 0; index2 < 2; index2++) {
        for (int index1 = 0; index1 < num_hidden_unit2; index1++) {
            ha3_temp[index1][index2] = ha3_temp[index1][index2] - gradient_rate_actor * G_ha3[index1][index2];
        }
        ba3_temp[index2] = ba3_temp[index2] - gradient_rate_actor * G_ba3[index2];
    }
}

float rand_normal(double mean, double stddev)
{
    //Box muller method
    static double n2 = 0.0f;
    static int n2_cached = 0;
    if (!n2_cached) {
        double x, y, r;
        do {
            x = 2.0f*rand()/RAND_MAX - 1;
            y = 2.0f*rand()/RAND_MAX - 1;

            r = x*x + y*y;
        } while (r == 0.0f || r > 1.0f);
        {
            double d = sqrt(-2.0f*log(r)/r);
            double n1 = x*d;
            n2 = y*d;
            double result = n1*stddev + mean;
            n2_cached = 1;
            return result;
        }
    } else {
        n2_cached = 0;
        return n2*stddev + mean;
    }
}

float mean_adv(float x[], int size)
{
    float add = 0.0f;
    float result;
    
    for (int i=0; i<size; i++)
    {
        add += x[i];
    }
    result = (float) add/size;
    return result;
}
float deviation_adv(float x[], int size)
{
    float sigma = 0.0f;
    float resultDeb = 0.0f;
    
    for (int k=0; k<size; k++)
    {
        sigma = pow((float)x[k]-mean_adv(x,size), (float)2.0f)/(size-1);
        resultDeb += sqrt(sigma);
    }
    return resultDeb;
}    
     

void Overwirte_Critic_Networks()
{
    for (int index2 = 0; index2 < num_hidden_unit1; index2++) {
        for (int index1 = 0; index1 < num_input_RL; index1++) {
            hc1[index1][index2] = hc1_temp[index1][index2];
        }
        bc1[index2] = bc1_temp[index2];
    }
    for (int index2 = 0; index2 < num_hidden_unit2; index2++) {
        for (int index1 = 0; index1 < num_hidden_unit1; index1++) {
            hc2[index1][index2] = hc2_temp[index1][index2];
        }
        bc2[index2] = bc2_temp[index2];
        hc3[index2] = hc3_temp[index2];
    }
    bc3 = bc3_temp;
}
void Overwirte_Actor_Networks()
{
    for (int index2 = 0; index2 < num_hidden_unit1; index2++) {
        for (int index1 = 0; index1 < num_input_RL; index1++) {
            ha1[index1][index2] = ha1_temp[index1][index2];
        }
        ba1[index2] = ba1_temp[index2];
    }
    for (int index2 = 0; index2 < num_hidden_unit2; index2++) {
        for (int index1 = 0; index1 < num_hidden_unit1; index1++) {
            ha2[index1][index2] = ha2_temp[index1][index2];
        }
        ba2[index2] = ba2_temp[index2];
    }
    for (int index2 = 0; index2 < 2; index2++) {
        for (int index1 = 0; index1 < num_hidden_unit2; index1++) {
            ha3[index1][index2] = ha3_temp[index1][index2];
        }
        ba3[index2] = ba3_temp[index2];
    }
}


int main()
{

    HAL_Init();
    SystemClock_Config();

    /*********************************
    ***     Initialization
    *********************************/
    LED = 0;
    pc.baud(9600);

    // i2c init
    i2c.frequency(400 * 1000);          // 0.4 mHz
    wait_ms(2);                         // Power Up wait
    look_for_hardware_i2c();            // Hardware present
    init_as5510(i2c_slave_addr1);
    make_delay();

//    // spi init
    eeprom.format(8,3);
    eeprom.frequency(5000000); //5M
    enc.format(8,0);
    enc.frequency(5000000); //5M
    make_delay();

    //rom
    ROM_CALL_DATA();
    make_delay();

    // ADC init
    Init_ADC();
    make_delay();

    // Pwm init
    Init_PWM();
    TIM4->CR1 ^= TIM_CR1_UDIS;
    make_delay();

    // TMR3 init
    Init_TMR3();
    TIM3->CR1 ^= TIM_CR1_UDIS;
    make_delay();

    // TMR2 init
//    Init_TMR2();
//    TIM2->CR1 ^= TIM_CR1_UDIS;
//    make_delay();

    // CAN
    can.attach(&CAN_RX_HANDLER);
    CAN_ID_INIT();
    make_delay();

    //Timer priority
    NVIC_SetPriority(TIM3_IRQn, 2);
    //NVIC_SetPriority(TIM2_IRQn, 3);
    NVIC_SetPriority(TIM4_IRQn, 3);

    //can.reset();
    can.filter(msg.id, 0xFFFFF000, CANStandard);

    // spi _ enc
    spi_enc_set_init();
    make_delay();

    //DAC init
    if (SENSING_MODE == 0) {
        dac_1 = TORQUE_VREF / 3.3f;
        dac_2 = 0.0f;
    } else if (SENSING_MODE == 1) {
        dac_1 = PRES_A_VREF / 3.3f;
        dac_2 = PRES_B_VREF / 3.3f;
    }
    make_delay();

    for (int i=0; i<50; i++) {
        if(i%2==0)
            ID_index_array[i] = - i * 0.5f;
        else
            ID_index_array[i] =  (i+1) * 0.5f;
    }

    for (int index2 = 0; index2 < num_hidden_unit1; index2++) {
        for (int index1 = 0; index1 < num_input_RL; index1++) {
            hc1_temp[index1][index2] = (float) (rand()%100) * 0.007f ;
        }
        bc1_temp[index2] = (float) (rand()%100) * 0.007f;
    }
    for (int index2 = 0; index2 < num_hidden_unit2; index2++) {
        for (int index1 = 0; index1 < num_hidden_unit1; index1++) {
            hc2_temp[index1][index2] = (float) (rand()%100) * 0.007f;
        }
        bc2_temp[index2] = (float) (rand()%100) * 0.007f;
        hc3_temp[index2] = (float) (rand()%100) * 0.007f;
    }
    bc3_temp = (float) (rand()%100) * 0.007f;

    for (int index2 = 0; index2 < num_hidden_unit1; index2++) {
        for (int index1 = 0; index1 < num_input_RL; index1++) {
            ha1_temp[index1][index2] = (float) (rand()%100) * 0.007f;
        }
        ba1_temp[index2] = (float) (rand()%100) * 0.007f;
    }
    for (int index2 = 0; index2 < num_hidden_unit2; index2++) {
        for (int index1 = 0; index1 < num_hidden_unit1; index1++) {
            ha2_temp[index1][index2] = (float) (rand()%100) * 0.007f;
        }
        ba2_temp[index2] = (float) (rand()%100) * 0.007f;
    }
    for (int index2 = 0; index2 < 2; index2++) {
        for (int index1 = 0; index1 < num_hidden_unit2; index1++) {
            ha3_temp[index1][index2] = (float) (rand()%100) * 0.007f;
        }
        ba3_temp[index2] = (float) (rand()%100) * 0.007f;
    }

    Overwirte_Critic_Networks();
    Overwirte_Actor_Networks();

    /************************************
    ***     Program is operating!
    *************************************/
    while(1) {

//        if(timer_while==27491) {
//            timer_while = 0;
//            pc.printf("ref : %f     virt_pos : %f  mean : %f    deviation : %f       Last_pos_of_batch : %f      reward_sum : %f\n", pos.sen/(float)(ENC_PULSE_PER_POSITION), logging3, logging2, logging4, logging1, logging5);
//            //pc.printf("%f\n", virt_pos);
//            //pc.printf("%f\n", pos.sen/(float)(ENC_PULSE_PER_POSITION));
//            //pc.printf("ref : %f     virt_pos : %f\n", pos.sen/(float)(ENC_PULSE_PER_POSITION), virt_pos);
//        }


        //i2c
        read_field(i2c_slave_addr1);
        if(DIR_VALVE_ENC < 0) value = 1023 - value;

        //timer_while ++;

        ///////////////////////////////////////////////////////Neural Network

        if(NN_Control_Flag == 0) {
            LED = 0;
        }

        else if(NN_Control_Flag == 1) {

            int ind = 0;
            for(int i=0; i<numpast_u; i++) {
                input_NN[ind] = u_past[time_interval*i];
                ind = ind + 1;
            }

            for(int i=0; i<numpast_x; i++) {
                input_NN[ind] = x_past[time_interval*i] / 60.0f;
                ind = ind + 1;
            }
            input_NN[ind] = (pos.sen / ENC_PULSE_PER_POSITION) / 60.0f;
            ind = ind + 1;

//            for(int i=0; i<numfuture_x; i++) {
//                input_NN[ind] = x_future[time_interval*i+time_interval] / 60.0f;
//                ind = ind + 1;
//            }

            for(int i=0; i<numpast_f; i++) {
                input_NN[ind] = f_past[time_interval*i] / 10000.0f * 8.0f + 0.5f;
                ind = ind + 1;
            }
            input_NN[ind] = torq.sen / 10000.0f * 8.0f + 0.5f;
            ind = ind + 1;
            for(int i=0; i<numfuture_f; i++) {
                input_NN[ind] = (f_future[time_interval*i+time_interval] - torq.sen)/10000.0f * 8.0f + 0.5f;
//                input_NN[ind] = (f_future[time_interval*i+time_interval])/10000.0f*8.0f+0.5f;
                ind = ind + 1;
            }

            float output1[16] = { 0.0f };
            float output2[16] = { 0.0f };
            float output3[16] = { 0.0f };
            float output = 0.0f;

            for (int index2 = 0; index2 < 16; index2++) {
                for (int index1 = 0; index1 < num_input; index1++) {
                    output1[index2] = output1[index2]
                                      + h1[index1][index2] * input_NN[index1];
                }
                output1[index2] = output1[index2] + b1[index2];
                if (output1[index2] < 0) {
                    output1[index2] = 0;
                }
            }

            for (int index2 = 0; index2 < 16; index2++) {
                for (int index1 = 0; index1 < 16; index1++) {
                    output2[index2] = output2[index2]
                                      + h2[index1][index2] * output1[index1];
                }
                output2[index2] = output2[index2] + b2[index2];
                if (output2[index2] < 0) {
                    output2[index2] = 0;
                }
            }

            for (int index2 = 0; index2 < 16; index2++) {
                for (int index1 = 0; index1 < 16; index1++) {
                    output3[index2] = output3[index2]
                                      + h3[index1][index2] * output2[index1];
                }
                output3[index2] = output3[index2] + b3[index2];
                if (output3[index2] < 0) {
                    output3[index2] = 0;
                }
            }

            for (int index2 = 0; index2 < 1; index2++) {
                for (int index1 = 0; index1 < 16; index1++) {
                    output = output + hout[index1] * output3[index1];
                }
                output = output + bout[index2];

            }
            output = 1.0f/(1.0f+exp(-output));
            output_normalized = output;
            output = output * 20000.0f - 10000.0f;

            if(output>=0) {
                valve_pos.ref = output*0.0001f*((double)VALVE_MAX_POS - (double) VALVE_CENTER) + (double) VALVE_CENTER;
            } else {
                valve_pos.ref = -output*0.0001f*((double)VALVE_MIN_POS - (double) VALVE_CENTER) + (double) VALVE_CENTER;
            }


            if(LED==1) {
                LED=0;
            } else
                LED = 1;

        }


        /////////////////////////////////////////////////////////////////////RL
        switch (Update_Case) {
            case 0: {
                break;
            }
            case 1: {
                //Network Update(just update and hold network)
                for (int epoch = 0; epoch < num_epoch; epoch++) {
                    float loss_sum = 0.0f;
                    for (int n=batch_size-1; n>=0; n--) {
                        //Calculate Estimated V
                        //float temp_array[3] = {state_array[n][0], state_array[n][1], state_array[n][2]};
                        float temp_array[2] = {state_array[n][0], state_array[n][1]};
                        V[n] = Critic_Network_Temp(temp_array);
                        for (int i=0; i<num_hidden_unit1; i++) {
                            hx_c_sum_array[n][i] = hx_c_sum[i];
                        }
                        for (int i=0; i<num_hidden_unit2; i++) {
                            hxh_c_sum_array[n][i] = hxh_c_sum[i];
                        }
                        hxhh_c_sum_array[n] = hxhh_c_sum;

                        pi[n] = exp(-(action_array[n]-mean_array[n])*(action_array[n]-mean_array[n])/(2.0f*deviation_array[n]*deviation_array[n]))/(sqrt(2.0f*PI)*deviation_array[n]);
                        Actor_Network_Old(temp_array);
                        pi_old[n] = exp(-(action_array[n]-mean_old)*(action_array[n]-mean_old)/(2.0f*deviation_old*deviation_old))/(sqrt(2.0f*PI)*deviation_old);
                        r[n] = exp(-0.25f * 5.0f * state_array[n][1] * state_array[n][1]);
                        if(n == batch_size-1) return_G[n] = 0.0f;
                        else return_G[n] = gamma * return_G[n+1] + r[n];
                        if(n == batch_size-1) td_target[n] = r[n];
                        else td_target[n] = r[n] + gamma * V[n+1];
                        delta[n] = td_target[n] - V[n];
                        if(n == batch_size-1) advantage[n] = 0.0f;
                        else advantage[n] = gamma * lmbda * advantage[n+1] + delta[n];
//                        return_G[n] = advantage[n] + V[n];
                        ratio[n] = pi[n]/pi_old[n];
                    }
                    float mean_advantage = 0.0f;
                    float dev_advantage = 0.0f;
                    mean_advantage = mean_adv(advantage, batch_size);
                    dev_advantage = deviation_adv(advantage, batch_size);
                    for (int n=batch_size-1; n>=0; n--) {
                        //advantage[n] = (advantage[n]-mean_advantage)/dev_advantage;
                        surr1[n] = ratio[n] * advantage[n];
                        if (ratio[n] > 1.0f + epsilon) {
                            surr2[n] = (1.0f + epsilon)*advantage[n];
                        } else if( ratio[n] < 1.0f - epsilon) {
                            surr2[n] = (1.0f - epsilon)*advantage[n];
                        } else {
                            surr2[n] = ratio[n]*advantage[n];
                        }
                        loss[n] = -min(surr1[n], surr2[n]);
                        loss_sum = loss_sum + loss[n];
                    }
                    reward_sum = 0.0f;
                    for (int i=0; i<batch_size; i++) {
                        reward_sum = reward_sum + r[i];
                    }
                    logging5 = reward_sum;


                    //loss_batch = loss_sum / (float) batch_size;
                    loss_batch = loss_sum;
                    //Update Networks
                    update_Critic_Networks(state_array);
                    update_Actor_Networks(state_array);
                }
                Update_Done_Flag = 1;
                Update_Case = 0;
                //logging1 = V[0];

                break;
            }
            case 2: {
                //Network apply to next Network
                Overwirte_Critic_Networks();
                Overwirte_Actor_Networks();
                virt_pos = 10.0f;
                Update_Done_Flag = 1;
                Update_Case = 0;
                break;
            }

        }
    }
}

float DDV_JOINT_POS_FF(float REF_JOINT_VEL)
{

    int i = 0;
    float Ref_Valve_Pos_FF = 0.0f;
    for(i=0; i<VALVE_POS_NUM; i++) {
        if(REF_JOINT_VEL >= min(JOINT_VEL[i],JOINT_VEL[i+1]) && REF_JOINT_VEL <=  max(JOINT_VEL[i],JOINT_VEL[i+1])) {
            if(i==0) {
                if(JOINT_VEL[i+1] == JOINT_VEL[i]) {
                    Ref_Valve_Pos_FF = (float) VALVE_CENTER;
                } else {
                    Ref_Valve_Pos_FF = ((float) 10/(JOINT_VEL[i+1] - JOINT_VEL[i]) * (REF_JOINT_VEL - JOINT_VEL[i])) + (float) VALVE_CENTER;
                }
            } else {
                if(JOINT_VEL[i+1] == JOINT_VEL[i-1]) {
                    Ref_Valve_Pos_FF = (float) VALVE_CENTER;
                } else {
                    Ref_Valve_Pos_FF = ((float) 10*(ID_index_array[i+1] - ID_index_array[i-1])/(JOINT_VEL[i+1] - JOINT_VEL[i-1]) * (REF_JOINT_VEL - JOINT_VEL[i-1])) + (float) VALVE_CENTER + (float) (10*ID_index_array[i-1]);
                }
            }
            break;
        }
    }
    if(REF_JOINT_VEL > max(JOINT_VEL[VALVE_POS_NUM-1], JOINT_VEL[VALVE_POS_NUM-2])) {
        Ref_Valve_Pos_FF = (float) VALVE_MAX_POS;
    } else if(REF_JOINT_VEL < min(JOINT_VEL[VALVE_POS_NUM-1], JOINT_VEL[VALVE_POS_NUM-2])) {
        Ref_Valve_Pos_FF = (float) VALVE_MIN_POS;
    }

    Ref_Valve_Pos_FF = (float) VELOCITY_COMP_GAIN * 0.01f * (float) (Ref_Valve_Pos_FF - (float) VALVE_CENTER);
    return Ref_Valve_Pos_FF;

}


void VALVE_POS_CONTROL(float REF_VALVE_POS)
{
    int i = 0;

    if(REF_VALVE_POS > VALVE_MAX_POS) {
        REF_VALVE_POS = VALVE_MAX_POS;
    } else if(REF_VALVE_POS < VALVE_MIN_POS) {
        REF_VALVE_POS = VALVE_MIN_POS;
    }

    valve_pos_err = (float) (REF_VALVE_POS - value);
    valve_pos_err_diff = valve_pos_err - valve_pos_err_old;
    valve_pos_err_old = valve_pos_err;
    valve_pos_err_sum += valve_pos_err;
    if (valve_pos_err_sum > 1000.0f) valve_pos_err_sum = 1000.0f;
    if (valve_pos_err_sum<-1000.0f) valve_pos_err_sum = -1000.0f;

    VALVE_PWM_RAW_FB = P_GAIN_VALVE_POSITION * valve_pos_err + I_GAIN_VALVE_POSITION * valve_pos_err_sum + D_GAIN_VALVE_POSITION * valve_pos_err_diff;

    for(i=0; i<24; i++) {
        if(REF_VALVE_POS >= min(VALVE_POS_VS_PWM[i],VALVE_POS_VS_PWM[i+1]) && (float) REF_VALVE_POS <=  max(VALVE_POS_VS_PWM[i],VALVE_POS_VS_PWM[i+1])) {
            if(i==0) {
                VALVE_PWM_RAW_FF = (float) 1000.0f / (float) (VALVE_POS_VS_PWM[i+1] - VALVE_POS_VS_PWM[i]) * ((float) REF_VALVE_POS - VALVE_POS_VS_PWM[i]);
            } else {
                VALVE_PWM_RAW_FF = (float) 1000.0f* (float) (ID_index_array[i+1] - ID_index_array[i-1])/(VALVE_POS_VS_PWM[i+1] - VALVE_POS_VS_PWM[i-1]) * ((float) REF_VALVE_POS - VALVE_POS_VS_PWM[i-1]) + 1000.0f * (float) ID_index_array[i-1];
            }
            break;
        }
    }
    Vout.ref = VALVE_PWM_RAW_FF + VALVE_PWM_RAW_FB;
}

#define LT_MAX_IDX  57
float LT_PWM_duty[LT_MAX_IDX] = {-100.0f, -80.0f, -60.0f, -50.0f, -40.0f, -35.0f, -30.0f, -25.0f, -20.0f,
                                 -19.0f, -18.0f, -17.0f, -16.0f, -15.0f, -14.0f, -13.0f, -12.0f, -11.0f, -10.0f,
                                 -9.0f, -8.0f, -7.0f, -6.0f, -5.0f, -4.0f, -3.0f, -2.0f, -1.0f, 0.0f,
                                 1.0f, 2.0f, 3.0f, 4.0f, 5.0f, 6.0f, 7.0f, 8.0f, 9.0f, 10.0f,
                                 11.0f, 12.0f, 13.0f, 14.0f, 15.0f, 16.0f, 17.0f, 18.0f, 19.0f, 20.0f,
                                 25.0f, 30.0f, 35.0f, 40.0f, 50.0f, 60.0f, 80.0f, 100.0f
                                };  // duty
float LT_Voltage_Output[LT_MAX_IDX] = {-230.0f, -215.0f, -192.5f, -185.0f, -177.5f, -170.0f, -164.0f, -160.0f, -150.0f,
                                       -150.0f, -145.0f, -145.0f, -145.0f, -135.0f, -135.0f, -135.0f, -127.5f, -127.5f, -115.0f,
                                       -115.0f, -115.0F, -100.0f, -100.0f, -100.0f, -60.0f, -60.0f, -10.0f, -5.0f, 0.0f,
                                       7.5f, 14.0f, 14.0f, 14.0f, 42.5f, 42.5f, 42.5f, 80.0f, 80.0f, 105.0f,
                                       105.0f, 105.0f, 120.0f, 120.0f, 120.0f, 131.0f, 131.0f, 140.0f, 140.0f, 140.0f,
                                       155.0f, 160.0f, 170.0f, 174.0f, 182.0f, 191.0f, 212.0f, 230.0f
                                      }; // mV

float PWM_duty_byLT(float Ref_V)
{
    float PWM_duty = 0.0f;
    if(Ref_V<LT_Voltage_Output[0]) {
        PWM_duty = (Ref_V-LT_Voltage_Output[0])/1.5f+LT_PWM_duty[0];
    } else if (Ref_V>=LT_Voltage_Output[LT_MAX_IDX-1]) {
        PWM_duty = (Ref_V-LT_Voltage_Output[LT_MAX_IDX-1])/1.5f+LT_PWM_duty[LT_MAX_IDX-1];
    } else {
        int idx = 0;
        for(idx=0; idx<LT_MAX_IDX-1; idx++) {
            float ini_x = LT_Voltage_Output[idx];
            float fin_x = LT_Voltage_Output[idx+1];
            float ini_y = LT_PWM_duty[idx];
            float fin_y = LT_PWM_duty[idx+1];
            if(Ref_V>=ini_x && Ref_V<fin_x) {
                PWM_duty = (fin_y-ini_y)/(fin_x-ini_x)*(Ref_V-ini_x) + ini_y;
                break;
            }
        }
    }

    return PWM_duty;
}





/*******************************************************************************
                            TIMER INTERRUPT
*******************************************************************************/

float FREQ_TMR4 = (float)FREQ_20k;
float DT_TMR4 = (float)DT_20k;
long  CNT_TMR4 = 0;
int   TMR4_FREQ_10k = (int)FREQ_10k;
extern "C" void TIM4_IRQHandler(void)
{
    if (TIM4->SR & TIM_SR_UIF ) {

        /*******************************************************
        ***     Sensor Read & Data Handling
        ********************************************************/

        //Encoder
        if (CNT_TMR4 % (int) ((int) FREQ_TMR4/TMR4_FREQ_10k) == 0) {
            ENC_UPDATE();
        }

        ADC1->CR2  |= 0x40000000;
        if (SENSING_MODE == 0) {
            // Torque Sensing (0~210)bar =============================================
            float pres_A_new = (((float) ADC1->DR) - 2047.5f);
            double alpha_update_ft = 1.0f / (1.0f + FREQ_TMR4 / (2.0f * 3.14f * 100.0f)); // f_cutoff : 200Hz
            pres_A.sen = (1.0f - alpha_update_ft) * pres_A.sen + alpha_update_ft * pres_A_new;
            torq.sen = -pres_A.sen / TORQUE_SENSOR_PULSE_PER_TORQUE;


//        float alpha_update_pres_A = 1.0f/(1.0f + FREQ_TMR4/(2.0f*3.14f*100.0f));
////        float pres_A_new = ((float)ADC1->DR - PRES_A_NULL)  / PRES_SENSOR_A_PULSE_PER_BAR;
//        float pres_A_new = ((float)ADC1->DR);
//        pres_A.sen = pres_A.sen*(1.0f-alpha_update_pres_A)+pres_A_new*(alpha_update_pres_A);
//        torq.sen = - (pres_A.sen-2048.0f); //pulse -2047~2047


        } else if (SENSING_MODE == 1) {
            // Pressure Sensing (0~210)bar =============================================
            float pres_A_new = (((float)ADC1->DR) - PRES_A_NULL);
            float pres_B_new = (((float)ADC2->DR) - PRES_B_NULL);
            double alpha_update_pres = 1.0f / (1.0f + FREQ_TMR4 / (2.0f * 3.14f * 200.0f)); // f_cutoff : 500Hz
            pres_A.sen = (1.0f - alpha_update_pres) * pres_A.sen + alpha_update_pres * pres_A_new;
            pres_B.sen = (1.0f - alpha_update_pres) * pres_B.sen + alpha_update_pres * pres_B_new;
            CUR_PRES_A_BAR = pres_A.sen / PRES_SENSOR_A_PULSE_PER_BAR;
            CUR_PRES_B_BAR = pres_B.sen / PRES_SENSOR_B_PULSE_PER_BAR;

            if ((OPERATING_MODE & 0x01) == 0) { // Rotary Actuator
                torq.sen = (PISTON_AREA_A * CUR_PRES_A_BAR - PISTON_AREA_B * CUR_PRES_B_BAR) * 0.0001f; // mm^3*bar >> Nm
            } else if ((OPERATING_MODE & 0x01) == 1) { // Linear Actuator
                torq.sen = (PISTON_AREA_A * CUR_PRES_A_BAR - PISTON_AREA_B * CUR_PRES_B_BAR) * 0.1f; // mm^2*bar >> N
            }
        }

//        //Pressure sensor A
//        ADC1->CR2  |= 0x40000000;                        // adc _ 12bit
//        //while((ADC1->SR & 0b10));
//        float alpha_update_pres_A = 1.0f/(1.0f + FREQ_TMR4/(2.0f*3.14f*100.0f));
//        float pres_A_new = ((float)ADC1->DR);
//        pres_A.sen = pres_A.sen*(1.0f-alpha_update_pres_A)+pres_A_new*(alpha_update_pres_A);
//        torq.sen = - (pres_A.sen-2048.0f); //pulse -2047~2047    //SW just changed the sign to correct the direction of loadcell on LIGHT. Correct later.
//
//
//        //Pressure sensor B
//        float alpha_update_pres_B = 1.0f/(1.0f + FREQ_TMR4/(2.0f*3.14f*100.0f));
//        float pres_B_new = ((float)ADC2->DR);
//        pres_B.sen = pres_B.sen*(1.0f-alpha_update_pres_B)+pres_B_new*(alpha_update_pres_B);
//        //torq.sen = pres_A.sen * (float) PISTON_AREA_A - pres_B.sen * (float) PISTON_AREA_B;


        //Current
        //ADC3->CR2  |= 0x40000000;                        // adc _ 12bit
        //int raw_cur = ADC3->DR;
        //while((ADC3->SR & 0b10));
        float alpha_update_cur = 1.0f/(1.0f + FREQ_TMR4/(2.0f*3.14f*500.0f)); // f_cutoff : 500Hz
        float cur_new = ((float)ADC3->DR-2048.0f)*20.0f/4096.0f; // unit : mA
        cur.sen=cur.sen*(1.0f-alpha_update_cur)+cur_new*(alpha_update_cur);
        //cur.sen = raw_cur;

        CNT_TMR4++;
    }
    TIM4->SR = 0x0;  // reset the status register
}


int j =0;
float FREQ_TMR3 = (float)FREQ_5k;
float DT_TMR3 = (float)DT_5k;
int cnt_trans = 0;
double VALVE_POS_RAW_FORCE_FB_LOGGING = 0.0f;
int can_rest =0;

extern "C" void TIM3_IRQHandler(void)
{
    if (TIM3->SR & TIM_SR_UIF ) {

        if (((OPERATING_MODE&0b110)>>1) == 0) {
            K_v = 0.4f; // Moog (LPM >> mA) , 100bar
            mV_PER_mA = 500.0f; // 5000mV/10mA
            mV_PER_pulse = 0.5f; // 5000mV/10000pulse
            mA_PER_pulse = 0.001f; // 10mA/10000pulse
        } else if (((OPERATING_MODE&0b110)>>1) == 1) {
            K_v = 0.5f; // KNR (LPM >> mA) , 100bar
            mV_PER_mA = 166.6666f; // 5000mV/30mA
            mV_PER_pulse = 0.5f; // 5000mV/10000pulse
            mA_PER_pulse = 0.003f; // 30mA/10000pulse
        }

        if(MODE_POS_FT_TRANS == 1) {
            alpha_trans = (float)(1.0f - cos(3.141592f * (float)cnt_trans * DT_TMR3 /3.0f))/2.0f;
            cnt_trans++;
            torq.err_sum = 0;
            if((float)cnt_trans * DT_TMR3 > 3.0f)
                MODE_POS_FT_TRANS = 2;
        } else if(MODE_POS_FT_TRANS == 3) {
            alpha_trans = (float)(1.0f + cos(3.141592f * (float)cnt_trans * DT_TMR3 /3.0f))/2.0f;
            cnt_trans++;
            torq.err_sum = 0;
            if((float) cnt_trans * DT_TMR3 > 3.0f )
                MODE_POS_FT_TRANS = 0;
        } else if(MODE_POS_FT_TRANS == 2) {
            alpha_trans = 1.0f;
            cnt_trans = 0;
        } else {
            alpha_trans = 0.0f;
            cnt_trans = 0;
        }


        int UTILITY_MODE = 0;
        int CONTROL_MODE = 0;

        if (CONTROL_UTILITY_MODE >= 20 || CONTROL_UTILITY_MODE == 0) {
            UTILITY_MODE = CONTROL_UTILITY_MODE;
            CONTROL_MODE = MODE_NO_ACT;
        } else {
            CONTROL_MODE = CONTROL_UTILITY_MODE;
            UTILITY_MODE = MODE_NO_ACT;
        }



        // UTILITY MODE ------------------------------------------------------------

        switch (UTILITY_MODE) {
            case MODE_NO_ACT: {
                break;
            }

            case MODE_TORQUE_SENSOR_NULLING: {
                // DAC Voltage reference set
                if (TMR3_COUNT_TORQUE_NULL < TMR_FREQ_5k * 2) {
                    CUR_TORQUE_sum += torq.sen;

                    if (TMR3_COUNT_TORQUE_NULL % 10 == 0) {
                        CUR_TORQUE_mean = CUR_TORQUE_sum / 10.0f;
                        CUR_TORQUE_sum = 0;

                        TORQUE_VREF += 0.000003f * (0.0f - CUR_TORQUE_mean);

                        if (TORQUE_VREF > 3.3f) TORQUE_VREF = 3.3f;
                        if (TORQUE_VREF < 0.0f) TORQUE_VREF = 0.0f;

                        //spi_eeprom_write(RID_TORQUE_SENSOR_VREF, (int16_t) (TORQUE_VREF * 1000.0));
                        dac_1 = TORQUE_VREF / 3.3f;
                    }
                } else {
                    CONTROL_UTILITY_MODE = MODE_NO_ACT;
                    TMR3_COUNT_TORQUE_NULL = 0;
                    CUR_TORQUE_sum = 0;
                    CUR_TORQUE_mean = 0;

//                    ROM_RESET_DATA();
                    spi_eeprom_write(RID_TORQUE_SENSOR_VREF, (int16_t) (TORQUE_VREF * 1000.0f));

                    dac_1 = TORQUE_VREF / 3.3f;

                }
                TMR3_COUNT_TORQUE_NULL++;
                break;
            }

//            case MODE_VALVE_NULLING_AND_DEADZONE_SETTING: {
//                if (TMR3_COUNT_DEADZONE == 0) {
//                    if (pos_plus_end == pos_minus_end) need_enc_init = true;
//                    else temp_time = 0;
//                }
//                if (need_enc_init) {
//                    if (TMR3_COUNT_DEADZONE < (int) (0.5f * (float) TMR_FREQ_5k)) {
//                        V_out = VALVE_VOLTAGE_LIMIT * 1000.0f;
//                        pos_plus_end = pos.sen;
//                    } else if (TMR3_COUNT_DEADZONE < TMR_FREQ_5k) {
//                        V_out = -VALVE_VOLTAGE_LIMIT * 1000.0f;
//                        pos_minus_end = pos.sen;
//                    } else if (TMR3_COUNT_DEADZONE == TMR_FREQ_5k) need_enc_init = false;
//                    temp_time = TMR_FREQ_5k;
//                }
//
//                if (temp_time <= TMR3_COUNT_DEADZONE && TMR3_COUNT_DEADZONE < (temp_time + TMR_FREQ_5k)) {
//                    V_out = (float) P_GAIN_JOINT_POSITION * (0.5f * (float) pos_plus_end + 0.5f * (float) pos_minus_end - (float) pos.sen);
//                    VALVE_CENTER = VALVE_DEADZONE_PLUS = VALVE_DEADZONE_MINUS = 0;
//
//                } else if (temp_time <= TMR3_COUNT_DEADZONE && TMR3_COUNT_DEADZONE < (temp_time + (int) (1.9f * (float) TMR_FREQ_5k))) {
//                    V_out = 0;
//                    CUR_VELOCITY_sum += CUR_VELOCITY;
//                } else if (TMR3_COUNT_DEADZONE == (temp_time + 2 * TMR_FREQ_5k)) {
//                    if (CUR_VELOCITY_sum == 0) DZ_dir = 1;
//                    else if (CUR_VELOCITY_sum > 0) DZ_dir = 1;
//                    else if (CUR_VELOCITY_sum < 0) DZ_dir = -1;
//                    else DZ_temp_cnt2 = DZ_end;
//                    CUR_VELOCITY_sum = 0;
//                } else if (TMR3_COUNT_DEADZONE > (temp_time + 2 * TMR_FREQ_5k)) {
//                    if (TMR3_COUNT_DEADZONE > (temp_time + 10 * TMR_FREQ_5k)) DZ_temp_cnt2 = DZ_end;
//
//                    // Position of Dead Zone
//                    //  (CUR_VELOCITY < 0)  (CUR_VELOCITY == 0)  (CUR_VELOCITY > 0)
//                    //     |        /                 |    /                      |/
//                    //     | ______/               ___|___/                ______/|
//                    //     |/                     /   |                   /       |
//                    //    /|                     /    |                  /        |
//                    //     0V                         0V                          0V
//
//                    if (DZ_temp_cnt2 < DZ_end) {
//                        if (TMR3_COUNT_DEADZONE % 20 != 0) {
//                            CUR_VELOCITY_sum += CUR_VELOCITY;
//                        } else {
//                            V_out -= DZ_dir;
//                            if (CUR_VELOCITY_sum * DZ_dir < 0) DZ_temp_cnt++;
//                            CUR_VELOCITY_sum = 0;
//                        }
//                        if (DZ_temp_cnt == 5) {
//                            if (DZ_dir >= 0) VALVE_DEADZONE_MINUS = (int16_t) V_out;
//                            else VALVE_DEADZONE_PLUS = (int16_t) V_out;
//                            DZ_dir = -DZ_dir;
//                            DZ_temp_cnt = 0;
//                            DZ_temp_cnt2++;
//                        }
//                    } else {
//                        TMR3_COUNT_DEADZONE = -1;
//                        VALVE_CENTER = VALVE_DEADZONE_PLUS / 2 + VALVE_DEADZONE_MINUS / 2;
//                        if (VALVE_DEADZONE_PLUS < VALVE_DEADZONE_MINUS) {
//                            VALVE_DEADZONE_PLUS = VALVE_CENTER;
//                            VALVE_DEADZONE_MINUS = VALVE_CENTER;
//                        }
//                        V_out = 0;
//
//                        ROM_RESET_DATA();
//
//                        //spi_eeprom_write(RID_VALVE_DEADZONE_PLUS, VALVE_DEADZONE_PLUS);
//                        //spi_eeprom_write(RID_VALVE_DEADZONE_MINUS, VALVE_DEADZONE_MINUS);
//
//                        CONTROL_MODE = MODE_NO_ACT;
//                        DZ_temp_cnt2 = 0;
//                    }
//                }
//                TMR3_COUNT_DEADZONE++;
//                break;
//            }

            case MODE_FIND_HOME: {
                if (FINDHOME_STAGE == FINDHOME_INIT) {
                    cnt_findhome = 0;
                    cnt_vel_findhome = 0;
                    //REFERENCE_MODE = MODE_REF_NO_ACT; // Stop taking reference data from PODO
                    pos.ref = pos.sen;
                    vel.ref = 0.0f;
                    FINDHOME_STAGE = FINDHOME_GOTOLIMIT;
                } else if (FINDHOME_STAGE == FINDHOME_GOTOLIMIT) {
                    int cnt_check_enc = (TMR_FREQ_5k/20);
                    if(cnt_findhome%cnt_check_enc == 0) {
                        FINDHOME_POSITION = pos.sen;
                        FINDHOME_VELOCITY = FINDHOME_POSITION - FINDHOME_POSITION_OLD;
                        FINDHOME_POSITION_OLD = FINDHOME_POSITION;
                    }
                    cnt_findhome++;

                    if (abs(FINDHOME_VELOCITY) <= 1) {
                        cnt_vel_findhome = cnt_vel_findhome + 1;
                    } else {
                        cnt_vel_findhome = 0;
                    }

                    if ((cnt_vel_findhome < 3*TMR_FREQ_5k) &&  cnt_findhome < 10*TMR_FREQ_5k) { // wait for 3sec
                        //REFERENCE_MODE = MODE_REF_NO_ACT;
                        if (HOMEPOS_OFFSET > 0) pos.ref = pos.ref + 12.0f;
                        else pos.ref = pos.ref - 12.0f;

//                        pos.err = pos.ref_home_pos - pos.sen;
//                        float VALVE_POS_RAW_POS_FB = 0.0f;
//                        VALVE_POS_RAW_POS_FB = (float) P_GAIN_JOINT_POSITION * pos.err/(float) ENC_PULSE_PER_POSITION * 0.01f;
//                        valve_pos.ref = VALVE_POS_RAW_POS_FB + (float) VALVE_CENTER;
//                        VALVE_POS_CONTROL(valve_pos.ref);

                        CONTROL_MODE = MODE_JOINT_CONTROL;
                        alpha_trans = 0.0f;


                    } else {
                        ENC_SET(HOMEPOS_OFFSET);
//                        ENC_SET_ZERO();
                        INIT_REF_POS = HOMEPOS_OFFSET;
                        REF_POSITION = 0;
                        REF_VELOCITY = 0;
                        FINDHOME_POSITION = 0;
                        FINDHOME_POSITION_OLD = 0;
                        FINDHOME_VELOCITY = 0;
                        cnt_findhome = 0;
                        cnt_vel_findhome = 0;
                        FINDHOME_STAGE = FINDHOME_ZEROPOSE;


                        cnt_findhome = 0;
                        pos.ref = 0.0f;
                        vel.ref = 0.0f;
                        pos.ref_home_pos = 0.0f;
                        vel.ref_home_pos = 0.0f;
                        //FINDHOME_STAGE = FINDHOME_INIT;
                        //CONTROL_UTILITY_MODE = MODE_JOINT_CONTROL;


                    }
                } else if (FINDHOME_STAGE == FINDHOME_ZEROPOSE) {
                    int T_move = 2*TMR_FREQ_5k;
                    pos.ref = (0.0f - (float)INIT_REF_POS)*0.5f*(1.0f - cos(3.14159f * (float)cnt_findhome / (float)T_move)) + (float)INIT_REF_POS;
                    //pos.ref = 0.0f;
                    vel.ref = 0.0f;

                    // input for position control

//                    CONTROL_MODE = MODE_JOINT_CONTROL;
                    alpha_trans = 0.0f;

                    double torq_ref = 0.0f;
                    pos.err = (pos.ref - pos.sen)/(float)(ENC_PULSE_PER_POSITION); //[mm]
                    vel.err = (0.0f - vel.sen)/(float)(ENC_PULSE_PER_POSITION); //[mm/s]
                    pos.err_sum += pos.err/(float) TMR_FREQ_5k; //[mm]

                    if (((OPERATING_MODE&0b110)>>1) == 0 || ((OPERATING_MODE&0b110)>>1) == 1) {

                        double I_REF_POS = 0.0f;
                        double I_REF_FORCE_FB = 0.0f; // I_REF by Force Feedback
                        double I_REF_VC = 0.0f; // I_REF for velocity compensation

                        double temp_vel_pos = 0.0f;
                        double temp_vel_torq = 0.0f;
                        double wn_Pos = 2.0f * PI * 5.0f; // f_cut : 5Hz Position Control

                        if ((OPERATING_MODE & 0x01) == 0) { // Rotary Mode
                            temp_vel_pos = (0.01f * (double) P_GAIN_JOINT_POSITION * wn_Pos * pos.err + 0.01f * (double) I_GAIN_JOINT_POSITION * wn_Pos * pos.err_sum + 0.01f * (double) VELOCITY_COMP_GAIN * vel.ref / ENC_PULSE_PER_POSITION) * 3.14159f / 180.0f; // rad/s
                            //                            L when P-gain = 100, f_cut = 10Hz                                 L feedforward velocity
                        } else if ((OPERATING_MODE & 0x01) == 1) {
                            temp_vel_pos = (0.01f * (double) P_GAIN_JOINT_POSITION * wn_Pos * pos.err + 0.01f * (double) I_GAIN_JOINT_POSITION * wn_Pos * pos.err_sum + 0.01f * (double) VELOCITY_COMP_GAIN * vel.ref / ENC_PULSE_PER_POSITION); // mm/s
                            //                            L when P-gain = 100, f_cut = 10Hz                                 L feedforward velocity
                        }
                        if (temp_vel_pos > 0.0f) I_REF_POS = temp_vel_pos * ((double) PISTON_AREA_A * 0.00006f / (K_v * sqrt(2.0f * alpha3 / (alpha3 + 1.0f))));
                        else I_REF_POS = temp_vel_pos * ((double) PISTON_AREA_B * 0.00006f / (K_v * sqrt(2.0f / (alpha3 + 1.0f))));

                        I_REF = I_REF_POS;



                    } else {
                        float VALVE_POS_RAW_FORCE_FB = 0.0f;
                        VALVE_POS_RAW_FORCE_FB = DDV_JOINT_POS_FF(vel.sen) + (P_GAIN_JOINT_POSITION * 0.01f * pos.err + DDV_JOINT_POS_FF(vel.ref));

                        if (VALVE_POS_RAW_FORCE_FB >= 0) {
                            valve_pos.ref = VALVE_POS_RAW_FORCE_FB + VALVE_DEADZONE_PLUS;
                        } else {
                            valve_pos.ref = VALVE_POS_RAW_FORCE_FB + VALVE_DEADZONE_MINUS;
                        }

                        VALVE_POS_CONTROL(valve_pos.ref);

                        V_out = (float) Vout.ref;

                    }




//                    pos.err = pos.ref - (float)pos.sen;
//                    float VALVE_POS_RAW_POS_FB = 0.0f;
//                    VALVE_POS_RAW_POS_FB = (float) P_GAIN_JOINT_POSITION * 0.01f * pos.err/(float) ENC_PULSE_PER_POSITION;
//                    valve_pos.ref = VALVE_POS_RAW_POS_FB + (float) VALVE_CENTER;
//                    VALVE_POS_CONTROL(valve_pos.ref);

                    cnt_findhome++;
                    if (cnt_findhome >= T_move) {
                        //REFERENCE_MODE = MODE_REF_DIRECT;
                        cnt_findhome = 0;
                        pos.ref = 0.0f;
                        vel.ref = 0.0f;
                        pos.ref_home_pos = 0.0f;
                        vel.ref_home_pos = 0.0f;
                        FINDHOME_STAGE = FINDHOME_INIT;
                        CONTROL_UTILITY_MODE = MODE_JOINT_CONTROL;
                    }
                }

                break;
            }

//            case MODE_VALVE_GAIN_SETTING: {
//                if (TMR3_COUNT_FLOWRATE == 0) {
//                    if (pos_plus_end == pos_minus_end) need_enc_init = true;
//                    else {
//                        V_out = -VALVE_VOLTAGE_LIMIT * 1000.0f;
//                        temp_time = (int) (0.5f * (float) TMR_FREQ_5k);
//                    }
//                }
//                if (need_enc_init) {
//                    if (TMR3_COUNT_FLOWRATE < (int) (0.5f * (float) TMR_FREQ_5k)) {
//                        V_out = VALVE_VOLTAGE_LIMIT * 1000.0f;
//                        pos_plus_end = pos.sen;
//                    } else if (TMR3_COUNT_FLOWRATE < TMR_FREQ_5k) {
//                        V_out = -VALVE_VOLTAGE_LIMIT * 1000.0f;
//                        pos_minus_end = pos.sen;
//                    } else if (TMR3_COUNT_FLOWRATE == TMR_FREQ_5k) {
//                        need_enc_init = false;
//                        check_vel_pos_init = (int) (0.9f * (float) (pos_plus_end - pos_minus_end));
//                        check_vel_pos_fin = (int) (0.95f * (float) (pos_plus_end - pos_minus_end));
//                        check_vel_pos_interv = check_vel_pos_fin - check_vel_pos_init;
//                    }
//                    temp_time = TMR_FREQ_5k;
//                }
//                TMR3_COUNT_FLOWRATE++;
//                if (TMR3_COUNT_FLOWRATE > temp_time) {
//                    if (flag_flowrate % 2 == 0) { // (+)
//                        VALVE_VOLTAGE = 1000.0f * (float) (flag_flowrate / 2 + 1);
//                        V_out = VALVE_VOLTAGE;
//                        if (pos.sen > (pos_minus_end + check_vel_pos_init) && pos.sen < (pos_minus_end + check_vel_pos_fin)) {
//                            fl_temp_cnt++;
//                        } else if (pos.sen >= (pos_minus_end + check_vel_pos_fin) && CUR_VELOCITY == 0) {
//                            VALVE_GAIN_LPM_PER_V[flag_flowrate] = 0.95873f * 0.5757f * (float) TMR_FREQ_5k / 10000.0 * (float) check_vel_pos_interv / (float) fl_temp_cnt / VALVE_VOLTAGE; // 0.9587=6*pi/65536*10000 0.5757=0.02525*0.02*0.0095*2*60*1000
//                            //                        VALVE_GAIN_LPM_PER_V[flag_flowrate] = (float) TMR_FREQ_10k * (float) check_vel_pos_interv / (float) fl_temp_cnt / VALVE_VOLTAGE; // PULSE/sec
//                            fl_temp_cnt2++;
//                        }
//                    } else if (flag_flowrate % 2 == 1) { // (-)
//                        VALVE_VOLTAGE = -1. * (float) (flag_flowrate / 2 + 1);
//                        V_out = VALVE_VOLTAGE;
//                        if (pos.sen < (pos_plus_end - check_vel_pos_init) && pos.sen > (pos_plus_end - check_vel_pos_fin)) {
//                            fl_temp_cnt++;
//                        } else if (pos.sen <= (pos_plus_end - check_vel_pos_fin) && CUR_VELOCITY == 0) {
//                            VALVE_GAIN_LPM_PER_V[flag_flowrate] = 0.95873f * 0.5757f * (float) TMR_FREQ_5k / 10000.0f * (float) check_vel_pos_interv / (float) fl_temp_cnt / (-VALVE_VOLTAGE);
//                            //                        VALVE_GAIN_LPM_PER_V[flag_flowrate] = (float) TMR_FREQ_10k * (float) check_vel_pos_interv / (float) fl_temp_cnt / (-VALVE_VOLTAGE); // PULSE/sec
//                            fl_temp_cnt2++;
//                        }
//                    }
//                    if (fl_temp_cnt2 == 100) {
//
//                        ROM_RESET_DATA();
//
//                        //spi_eeprom_write(RID_VALVE_GAIN_PLUS_1 + flag_flowrate, (int16_t) (VALVE_GAIN_LPM_PER_V[flag_flowrate] * 100.0f));
//                        cur_vel_sum = 0;
//                        fl_temp_cnt = 0;
//                        fl_temp_cnt2 = 0;
//                        flag_flowrate++;
//                    }
//                    if (flag_flowrate == 10) {
//                        V_out = 0;
//                        flag_flowrate = 0;
//                        TMR3_COUNT_FLOWRATE = 0;
//                        valve_gain_repeat_cnt++;
//                        if (valve_gain_repeat_cnt >= 1) {
//                            CONTROL_MODE = MODE_NO_ACT;
//                            valve_gain_repeat_cnt = 0;
//                        }
//
//                    }
//                    break;
//                }
//
//            }
            case MODE_PRESSURE_SENSOR_NULLING: {
                // DAC Voltage reference set
                if (TMR3_COUNT_PRES_NULL < TMR_FREQ_5k * 2) {
                    CUR_PRES_A_sum += pres_A.sen;
                    CUR_PRES_B_sum += pres_B.sen;

                    if (TMR3_COUNT_PRES_NULL % 10 == 0) {
                        CUR_PRES_A_mean = CUR_PRES_A_sum / 10.0f;
                        CUR_PRES_B_mean = CUR_PRES_B_sum / 10.0f;
                        CUR_PRES_A_sum = 0;
                        CUR_PRES_B_sum = 0;

                        float VREF_NullingGain = 0.0003f;
                        PRES_A_VREF = PRES_A_VREF + VREF_NullingGain * CUR_PRES_A_mean;
                        PRES_B_VREF = PRES_B_VREF + VREF_NullingGain * CUR_PRES_B_mean;

                        if (PRES_A_VREF > 3.3f) PRES_A_VREF = 3.3f;
                        if (PRES_A_VREF < 0.0f) PRES_A_VREF = 0.0f;
                        if (PRES_B_VREF > 3.3f) PRES_B_VREF = 3.3f;
                        if (PRES_B_VREF < 0.0f) PRES_B_VREF = 0.0f;

                        dac_1 = PRES_A_VREF / 3.3f;
                        dac_2 = PRES_B_VREF / 3.3f;
                    }
                } else {
                    CONTROL_UTILITY_MODE = MODE_NO_ACT;
                    TMR3_COUNT_PRES_NULL = 0;
                    CUR_PRES_A_sum = 0;
                    CUR_PRES_B_sum = 0;
                    CUR_PRES_A_mean = 0;
                    CUR_PRES_B_mean = 0;

//                    ROM_RESET_DATA();
                    spi_eeprom_write(RID_PRES_A_SENSOR_VREF, (int16_t) (PRES_A_VREF * 1000.0f));
                    spi_eeprom_write(RID_PRES_B_SENSOR_VREF, (int16_t) (PRES_B_VREF * 1000.0f));

                    dac_1 = PRES_A_VREF / 3.3f;
                    dac_2 = PRES_B_VREF / 3.3f;
                    //pc.printf("nulling end");
                }
                TMR3_COUNT_PRES_NULL++;
                break;
            }

//            case MODE_PRESSURE_SENSOR_CALIB: {
//                if (TMR3_COUNT_PRES_CALIB < 2 * TMR_FREQ_5k) {
//                    V_out = -VALVE_VOLTAGE_LIMIT * 1000.0f;
//                    if (TMR3_COUNT_PRES_CALIB >= TMR_FREQ_5k) {
//                        CUR_PRES_A_sum += CUR_PRES_A;
//                    }
//                } else if (TMR3_COUNT_PRES_CALIB < 4 * TMR_FREQ_5k) {
//                    V_out = VALVE_VOLTAGE_LIMIT * 1000.0f;
//                    if (TMR3_COUNT_PRES_CALIB >= 3 * TMR_FREQ_5k) {
//                        CUR_PRES_B_sum += CUR_PRES_B;
//                    }
//                } else {
//                    CONTROL_MODE = MODE_NO_ACT;
//                    TMR3_COUNT_PRES_CALIB = 0;
//                    V_out = 0;
//                    PRES_SENSOR_A_PULSE_PER_BAR = CUR_PRES_A_sum / ((float) TMR_FREQ_5k - 1.0f) - PRES_A_NULL;
//                    PRES_SENSOR_A_PULSE_PER_BAR = PRES_SENSOR_A_PULSE_PER_BAR / ((float) PRES_SUPPLY - 1.0f);
//                    PRES_SENSOR_B_PULSE_PER_BAR = CUR_PRES_B_sum / ((float) TMR_FREQ_5k - 1.0f) - PRES_B_NULL;
//                    PRES_SENSOR_B_PULSE_PER_BAR = PRES_SENSOR_B_PULSE_PER_BAR / ((float) PRES_SUPPLY - 1.0f);
//                    CUR_PRES_A_sum = 0;
//                    CUR_PRES_B_sum = 0;
//                    CUR_PRES_A_mean = 0;
//                    CUR_PRES_B_mean = 0;
//
//                    ROM_RESET_DATA();
//
//                    //spi_eeprom_write(RID_PRES_SENSOR_A_PULSE_PER_BAR, (int16_t) (PRES_SENSOR_A_PULSE_PER_BAR * 100.0f));
//                    //spi_eeprom_write(RID_PRES_SENSOR_B_PULSE_PER_BAR, (int16_t) (PRES_SENSOR_B_PULSE_PER_BAR * 100.0f));
//                }
//                TMR3_COUNT_PRES_CALIB++;
//                break;
//            }

//            case MODE_ROTARY_FRICTION_TUNING: {
//                if (TMR3_COUNT_ROTARY_FRIC_TUNE % (5 * TMR_FREQ_5k) == 0) freq_fric_tune = 4.0f + 3.0f * sin(2 * 3.14159f * 0.5f * TMR3_COUNT_ROTARY_FRIC_TUNE * 0.0001f * 0.05f);
//                V_out = PWM_out * sin(2 * 3.14159f * freq_fric_tune * TMR3_COUNT_ROTARY_FRIC_TUNE * 0.0001f);
//                if (V_out > 0) V_out = VALVE_VOLTAGE_LIMIT * 1000.0f;
//                else V_out = -VALVE_VOLTAGE_LIMIT * 1000.0f;
//                TMR3_COUNT_ROTARY_FRIC_TUNE++;
//                if (TMR3_COUNT_ROTARY_FRIC_TUNE > TUNING_TIME * TMR_FREQ_5k) {
//                    TMR3_COUNT_ROTARY_FRIC_TUNE = 0;
//                    V_out = 0.0f;
//                    CONTROL_MODE = MODE_NO_ACT;
//                }
//                break;
//            }

            case MODE_DDV_POS_VS_PWM_ID: {
                CONTROL_MODE = MODE_VALVE_OPEN_LOOP;
                VALVE_ID_timer = VALVE_ID_timer + 1;

                if(VALVE_ID_timer < TMR_FREQ_5k*1) {
                    Vout.ref = 3000.0f * sin(2.0f*3.14f*VALVE_ID_timer/TMR_FREQ_5k * 100.0f);
                } else if(VALVE_ID_timer < TMR_FREQ_5k*2) {
                    Vout.ref = 1000.0f*(ID_index_array[ID_index]);
                } else if(VALVE_ID_timer == TMR_FREQ_5k*2) {
                    VALVE_POS_TMP = 0;
                    data_num = 0;
                } else if(VALVE_ID_timer < TMR_FREQ_5k*3) {
                    data_num = data_num + 1;
                    VALVE_POS_TMP = VALVE_POS_TMP + value;
                } else if(VALVE_ID_timer == TMR_FREQ_5k*3) {
                    Vout.ref = 0.0f;
                } else {
                    VALVE_POS_AVG[ID_index] = VALVE_POS_TMP / data_num;
                    VALVE_ID_timer = 0;
                    ID_index= ID_index +1;
                }

                if(ID_index>=25) {
                    int i;
                    VALVE_POS_AVG_OLD = VALVE_POS_AVG[0];
                    for(i=0; i<25; i++) {
                        VALVE_POS_VS_PWM[i] = (int16_t) (VALVE_POS_AVG[i]);
                        if(VALVE_POS_AVG[i] > VALVE_POS_AVG_OLD) {
                            VALVE_MAX_POS = VALVE_POS_AVG[i];
                            VALVE_POS_AVG_OLD = VALVE_MAX_POS;
                        } else if(VALVE_POS_AVG[i] < VALVE_POS_AVG_OLD) {
                            VALVE_MIN_POS = VALVE_POS_AVG[i];
                            VALVE_POS_AVG_OLD = VALVE_MIN_POS;
                        }
                    }
//                    ROM_RESET_DATA();
                    spi_eeprom_write(RID_VALVE_MAX_POS, (int16_t) VALVE_MAX_POS);
                    spi_eeprom_write(RID_VALVE_MIN_POS, (int16_t) VALVE_MIN_POS);
                    for(int i=0; i<25; i++) {
                        spi_eeprom_write(RID_VALVE_POS_VS_PWM_0 + i, (int16_t) VALVE_POS_VS_PWM[i]);
                    }
                    ID_index = 0;
                    CONTROL_UTILITY_MODE = MODE_NO_ACT;
                }


                break;
            }

            case MODE_DDV_DEADZONE_AND_CENTER: {
                CONTROL_MODE = MODE_VALVE_OPEN_LOOP;
                VALVE_DZ_timer = VALVE_DZ_timer + 1;
                if(first_check == 0) {
                    if(VALVE_DZ_timer < (int) (1.0f * (float) TMR_FREQ_5k)) {
                        Vout.ref = VALVE_VOLTAGE_LIMIT * 1000.0f;
                    } else if(VALVE_DZ_timer == (int) (1.0f * (float) TMR_FREQ_5k)) {
                        Vout.ref = VALVE_VOLTAGE_LIMIT * 1000.0f;
                        pos_plus_end = pos.sen;
                    } else if(VALVE_DZ_timer < (int) (2.0f * (float) TMR_FREQ_5k)) {
                        Vout.ref = -VALVE_VOLTAGE_LIMIT * 1000.0f;
                    } else if(VALVE_DZ_timer == (int) (2.0f * (float) TMR_FREQ_5k)) {
                        Vout.ref = -VALVE_VOLTAGE_LIMIT * 1000.0f;
                        pos_minus_end = pos.sen;
                    } else if(VALVE_DZ_timer < (int) (3.0f * (float) TMR_FREQ_5k)) {
                        Vout.ref = (float) P_GAIN_JOINT_POSITION * (0.5f * (float) pos_plus_end + 0.5f * (float) pos_minus_end - (float) pos.sen)/(float) ENC_PULSE_PER_POSITION;
                    } else if(VALVE_DZ_timer < (int) (4.0f * (float) TMR_FREQ_5k)) {
                        Vout.ref = (float) P_GAIN_JOINT_POSITION * (0.5f * (float) pos_plus_end + 0.5f * (float) pos_minus_end - (float) pos.sen)/(float) ENC_PULSE_PER_POSITION;
                        data_num = data_num + 1;
                        VALVE_POS_TMP = VALVE_POS_TMP + value;
                    } else if(VALVE_DZ_timer == (int) (4.0f * (float) TMR_FREQ_5k)) {
                        Vout.ref = (float) P_GAIN_JOINT_POSITION * (0.5f * (float) pos_plus_end + 0.5f * (float) pos_minus_end - (float) pos.sen)/(float) ENC_PULSE_PER_POSITION;
                        DDV_POS_AVG = VALVE_POS_TMP / data_num;
                        START_POS = pos.sen;
                        VALVE_POS_TMP = 0;
                        data_num = 0;

                    } else if(VALVE_DZ_timer < (int) (5.0f * (float) TMR_FREQ_5k)) {
                        valve_pos.ref = DDV_POS_AVG;
                        VALVE_POS_CONTROL(valve_pos.ref);

                    } else if(VALVE_DZ_timer < (int) (6.0f * (float) TMR_FREQ_5k)) {
                        valve_pos.ref = DDV_POS_AVG;
                        VALVE_POS_CONTROL(valve_pos.ref);

                    } else if(VALVE_DZ_timer == (int) (6.0f * (float) TMR_FREQ_5k)) {
                        valve_pos.ref = DDV_POS_AVG;
                        VALVE_POS_CONTROL(valve_pos.ref);
                        FINAL_POS = pos.sen;

                        if((FINAL_POS - START_POS)>200) {
                            DZ_case = 1;
                        } else if((FINAL_POS - START_POS)<-200) {
                            DZ_case = -1;
                        } else {
                            DZ_case = 0;
                        }

                        CAN_TX_PRES((int16_t) (DZ_case), (int16_t) (6));

                        first_check = 1;
                        DZ_DIRECTION = 1;
                        VALVE_DZ_timer = 0;
                        Ref_Valve_Pos_Old = DDV_POS_AVG;
                        DZ_NUM = 1;
                        DZ_index = 1;

                    }
                } else {
                    if((DZ_case == -1 && DZ_NUM == 1) | (DZ_case == 1 && DZ_NUM == 1)) {
                        if(VALVE_DZ_timer < (int) (1.0 * (float) TMR_FREQ_5k)) {
                            Vout.ref = (float) P_GAIN_JOINT_POSITION * (0.5f * (float) pos_plus_end + 0.5f * (float) pos_minus_end - (float) pos.sen)/(float) ENC_PULSE_PER_POSITION;
                            //pos.ref = 0.5f * (float) pos_plus_end + 0.5f * (float) pos_minus_end;
                            //CONTROL_MODE = MODE_JOINT_CONTROL;
                        } else if(VALVE_DZ_timer == (int) (1.0f * (float) TMR_FREQ_5k)) {
                            START_POS = pos.sen;
                        } else if(VALVE_DZ_timer < (int) (2.0f * (float) TMR_FREQ_5k)) {
                            valve_pos.ref = Ref_Valve_Pos_Old  - DZ_case * DZ_DIRECTION * 64 / DZ_index;
                            if(valve_pos.ref <= VALVE_MIN_POS) {
                                valve_pos.ref = VALVE_MIN_POS;
                            } else if(valve_pos.ref >= VALVE_MAX_POS) {
                                valve_pos.ref = VALVE_MAX_POS;
                            }
                            VALVE_POS_CONTROL(valve_pos.ref);

                        } else if(VALVE_DZ_timer == (int) (2.0f * (float) TMR_FREQ_5k)) {
                            Ref_Valve_Pos_Old = valve_pos.ref;
                            FINAL_POS = pos.sen;

                            if((FINAL_POS - START_POS)>100) {
                                DZ_DIRECTION = 1 * DZ_case;
                            } else if((FINAL_POS - START_POS)<-100) {
                                DZ_DIRECTION = -1 * DZ_case;
                            } else {
                                DZ_DIRECTION = 1 * DZ_case;
                            }

                            VALVE_DZ_timer = 0;
                            DZ_index= DZ_index *2;
                            if(DZ_index >= 128) {
                                FIRST_DZ = valve_pos.ref;
                                DZ_NUM = 2;
                                Ref_Valve_Pos_Old = FIRST_DZ;
                                DZ_index = 1;
                                DZ_DIRECTION = 1;
                            }
                        }
                    } else if((DZ_case == -1 && DZ_NUM == 2) | (DZ_case == 1 && DZ_NUM == 2)) {
                        if(VALVE_DZ_timer < (int) (1.0f * (float) TMR_FREQ_5k)) {
                            Vout.ref = (float) P_GAIN_JOINT_POSITION * (0.5f * (float) pos_plus_end + 0.5f * (float) pos_minus_end - (float) pos.sen)/(float) ENC_PULSE_PER_POSITION;
                            //pos.ref = 0.5f * (float) pos_plus_end + 0.5f * (float) pos_minus_end;
                            //CONTROL_MODE = MODE_JOINT_CONTROL;
                        } else if(VALVE_DZ_timer == (int) (1.0f * (float) TMR_FREQ_5k)) {
                            START_POS = pos.sen;
                        } else if(VALVE_DZ_timer < (int) (2.0f * (float) TMR_FREQ_5k)) {
                            valve_pos.ref = Ref_Valve_Pos_Old  - DZ_case * DZ_DIRECTION * 64 / DZ_index;
                            if(valve_pos.ref <= VALVE_MIN_POS) {
                                valve_pos.ref = VALVE_MIN_POS;
                            } else if(valve_pos.ref >= VALVE_MAX_POS) {
                                valve_pos.ref = VALVE_MAX_POS;
                            }
                            VALVE_POS_CONTROL(valve_pos.ref);

                        } else if(VALVE_DZ_timer == (int) (2.0f * (float) TMR_FREQ_5k)) {
                            Vout.ref = 0.0f;
                        } else if(VALVE_DZ_timer > (int) (2.0f * (float) TMR_FREQ_5k)) {
                            Ref_Valve_Pos_Old = valve_pos.ref;
                            FINAL_POS = pos.sen;

                            if((FINAL_POS - START_POS)>100) {
                                DZ_DIRECTION = 1 * DZ_case;
                            } else if((FINAL_POS - START_POS)<-100) {
                                DZ_DIRECTION = -1 * DZ_case;
                            } else {
                                DZ_DIRECTION = -1 * DZ_case;
                            }

                            VALVE_DZ_timer = 0;
                            DZ_index= DZ_index * 2;
                            if(DZ_index >= 128) {
                                SECOND_DZ = valve_pos.ref;
                                VALVE_CENTER = (int) (0.5f * (float) (FIRST_DZ) + 0.5f * (float) (SECOND_DZ));
                                first_check = 0;
                                VALVE_DEADZONE_MINUS = (float) FIRST_DZ;
                                VALVE_DEADZONE_PLUS = (float) SECOND_DZ;

//                                ROM_RESET_DATA();
                                spi_eeprom_write(RID_VALVE_CNETER, (int16_t) VALVE_CENTER);
                                spi_eeprom_write(RID_VALVE_MAX_POS, (int16_t) VALVE_MAX_POS);
                                spi_eeprom_write(RID_VALVE_MIN_POS, (int16_t) VALVE_MIN_POS);

                                CONTROL_UTILITY_MODE = MODE_NO_ACT;
                                DZ_index = 1;
                            }
                        }
                    } else if(DZ_case == 0 && DZ_NUM ==1) {
                        if(VALVE_DZ_timer < (int) (1.0f * (float) TMR_FREQ_5k)) {
                            Vout.ref = (float) P_GAIN_JOINT_POSITION * (0.5f * (float) pos_plus_end + 0.5f * (float) pos_minus_end - (float) pos.sen)/(float) ENC_PULSE_PER_POSITION;
                            //pos.ref = 0.5f * (float) pos_plus_end + 0.5f * (float) pos_minus_end;
                            //CONTROL_MODE = MODE_JOINT_CONTROL;
                        } else if(VALVE_DZ_timer == (int) (1.0f * (float) TMR_FREQ_5k)) {
                            START_POS = pos.sen;
                        } else if(VALVE_DZ_timer < (int) (2.0f * (float) TMR_FREQ_5k)) {
                            valve_pos.ref = Ref_Valve_Pos_Old  - DZ_DIRECTION * 64 / DZ_index;
                            if(valve_pos.ref <= VALVE_MIN_POS) {
                                valve_pos.ref = VALVE_MIN_POS;
                            } else if(valve_pos.ref >= VALVE_MAX_POS) {
                                valve_pos.ref = VALVE_MAX_POS;
                            }
                            VALVE_POS_CONTROL(valve_pos.ref);

                        } else if(VALVE_DZ_timer == (int) (2.0f * (float) TMR_FREQ_5k)) {
                            Ref_Valve_Pos_Old = valve_pos.ref;
                            FINAL_POS = pos.sen;

                            if((FINAL_POS - START_POS)>100) {
                                DZ_DIRECTION = 1;
                            } else if((FINAL_POS - START_POS)<-100) {
                                DZ_DIRECTION = -1;
                            } else {
                                DZ_DIRECTION = 1;
                            }
                            VALVE_DZ_timer = 0;
                            DZ_index= DZ_index *2;
                            if(DZ_index >= 128) {
                                FIRST_DZ = valve_pos.ref;
                                DZ_NUM = 2;
                                Ref_Valve_Pos_Old = FIRST_DZ;
                                DZ_index = 1;
                                DZ_DIRECTION = 1;
                            }
                        }
                    } else {
                        if(VALVE_DZ_timer < (int) (1.0f * (float) TMR_FREQ_5k)) {
                            Vout.ref = (float) P_GAIN_JOINT_POSITION * (0.5f * (float) pos_plus_end + 0.5f * (float) pos_minus_end - (float) pos.sen)/(float) ENC_PULSE_PER_POSITION;
                            //pos.ref = 0.5f * (float) pos_plus_end + 0.5f * (float) pos_minus_end;
                            //CONTROL_MODE = MODE_JOINT_CONTROL;
                        } else if(VALVE_DZ_timer == (int) (1.0f * (float) TMR_FREQ_5k)) {
                            START_POS = pos.sen;
                        } else if(VALVE_DZ_timer < (int) (2.0f * (float) TMR_FREQ_5k)) {
                            valve_pos.ref = Ref_Valve_Pos_Old  + DZ_DIRECTION * 64 / DZ_index;
                            if(valve_pos.ref <= VALVE_MIN_POS) {
                                valve_pos.ref = VALVE_MIN_POS;
                            } else if(valve_pos.ref > VALVE_MAX_POS) {
                                valve_pos.ref = VALVE_MAX_POS - 1;
                            }
                            VALVE_POS_CONTROL(valve_pos.ref);

                        } else if(VALVE_DZ_timer == (int) (2.0f * (float) TMR_FREQ_5k)) {
                            Vout.ref = 0.0f;
                        } else if(VALVE_DZ_timer > (int) (2.0f * (float) TMR_FREQ_5k)) {
                            Ref_Valve_Pos_Old = valve_pos.ref;
                            FINAL_POS = pos.sen;

                            if((FINAL_POS - START_POS)>100) {
                                DZ_DIRECTION = 1;
                            } else if((FINAL_POS - START_POS)<-100) {
                                DZ_DIRECTION = -1;
                            } else {
                                DZ_DIRECTION = 1;
                            }

                            VALVE_DZ_timer = 0;
                            DZ_index= DZ_index *2;
                            if(DZ_index >= 128) {
                                SECOND_DZ = valve_pos.ref;
                                VALVE_CENTER = (int) (0.5f * (float) (FIRST_DZ) + 0.5f * (float) (SECOND_DZ));
                                first_check = 0;
                                VALVE_DEADZONE_MINUS = (float) FIRST_DZ;
                                VALVE_DEADZONE_PLUS = (float) SECOND_DZ;

//                                ROM_RESET_DATA();
                                spi_eeprom_write(RID_VALVE_CNETER, (int16_t) VALVE_CENTER);
                                spi_eeprom_write(RID_VALVE_MAX_POS, (int16_t) VALVE_MAX_POS);
                                spi_eeprom_write(RID_VALVE_MIN_POS, (int16_t) VALVE_MIN_POS);

                                CONTROL_UTILITY_MODE = MODE_NO_ACT;
                                DZ_index = 1;
                            }
                        }
                    }
                }
                break;
            }

            case MODE_DDV_POS_VS_FLOWRATE: {
                CONTROL_MODE = MODE_VALVE_OPEN_LOOP;
                VALVE_FR_timer = VALVE_FR_timer + 1;
                if(first_check == 0) {
                    if(VALVE_FR_timer < (int) (1.0f * (float) TMR_FREQ_5k)) {
                        Vout.ref = VALVE_VOLTAGE_LIMIT * 1000.0f;
                        //CAN_TX_PRES((int16_t) (VALVE_FR_timer), (int16_t) (6));
                    } else if(VALVE_FR_timer == (int) (1.0f * (float) TMR_FREQ_5k)) {
                        Vout.ref = VALVE_VOLTAGE_LIMIT * 1000.0f;
                        pos_plus_end = pos.sen;
                        //                    CAN_TX_PRES((int16_t) (V_out), (int16_t) (7));
                    } else if(VALVE_FR_timer < (int) (2.0f * (float) TMR_FREQ_5k)) {
                        Vout.ref = -VALVE_VOLTAGE_LIMIT * 1000.0f;
                    } else if(VALVE_FR_timer == (int) (2.0f * (float) TMR_FREQ_5k)) {
                        //                    CAN_TX_PRES((int16_t) (V_out), (int16_t) (8));
                        Vout.ref = -VALVE_VOLTAGE_LIMIT * 1000.0f;
                        pos_minus_end = pos.sen;
                        first_check = 1;
                        VALVE_FR_timer = 0;
                        valve_pos.ref = (float) VALVE_CENTER;
                        ID_index = 0;
                        max_check = 0;
                        min_check = 0;
                    }
                } else {
                    if(VALVE_FR_timer < (int) (1.0f * (float) TMR_FREQ_5k)) {
                        //V_out = (float) P_GAIN_JOINT_POSITION * (0.5f * (float) pos_plus_end + 0.5f * (float) pos_minus_end - (float) pos.sen)/(float) ENC_PULSE_PER_POSITION;
                        pos.ref = 0.5f * (float) pos_plus_end + 0.5f * (float) pos_minus_end;
                        CONTROL_MODE = MODE_JOINT_CONTROL;
                    } else if(VALVE_FR_timer == (int) (1.0f * (float) TMR_FREQ_5k)) {
                        data_num = 0;
                        valve_pos.ref = 10.0f*((float) ID_index_array[ID_index]) + (float) VALVE_CENTER;

                        VALVE_POS_CONTROL(valve_pos.ref);
                        START_POS = pos.sen;
                    } else if(VALVE_FR_timer < (int) (5.0f * (float) TMR_FREQ_5k)) {
                        valve_pos.ref = 10.0f*((float) ID_index_array[ID_index]) + (float) VALVE_CENTER;
                        VALVE_POS_CONTROL(valve_pos.ref);
                        data_num = data_num + 1;
                        if(abs(0.5f * (float) pos_plus_end + 0.5f * (float) pos_minus_end - (float) pos.sen) > 20000.0f) {
                            FINAL_POS = pos.sen;
                            one_period_end = 1;
                        }
                    } else if(VALVE_FR_timer == (int) (5.0f * (float) TMR_FREQ_5k)) {
                        FINAL_POS = pos.sen;
                        one_period_end = 1;
                        V_out = 0.0f;
                    }

                    if(one_period_end == 1) {
                        if(valve_pos.ref > VALVE_MAX_POS) {
                            max_check = 1;
                        } else if(valve_pos.ref < VALVE_MIN_POS) {
                            min_check = 1;
                        }
                        JOINT_VEL[ID_index] = (FINAL_POS - START_POS) / data_num * TMR_FREQ_5k;   //  pulse/sec

                        VALVE_FR_timer = 0;
                        one_period_end = 0;
                        ID_index= ID_index +1;
                        V_out = 0.0f;
                    }

                    if(max_check == 1 && min_check == 1) {

                        VALVE_POS_NUM = ID_index;
//                        ROM_RESET_DATA();
                        for(int i=0; i<100; i++) {
                            spi_eeprom_write(RID_VALVE_POS_VS_FLOWRATE_0 + i, (int16_t) (JOINT_VEL[i] & 0xFFFF));
                            spi_eeprom_write(RID_VALVE_POS_VS_FLOWRATE_0_1 + i, (int16_t) ((JOINT_VEL[i] >> 16) & 0xFFFF));
                        }
                        ID_index = 0;
                        first_check = 0;
                        VALVE_FR_timer = 0;
                        CONTROL_UTILITY_MODE = MODE_NO_ACT;
//                        CAN_TX_PRES((int16_t) (VALVE_FR_timer), (int16_t) (6));
                    }
                }
                break;
            }

            case MODE_SYSTEM_ID: {
                freq_sysid_Iref = (double) cnt_sysid * DT_TMR3 * 3.0f;
                valve_pos.ref = 2500.0f * sin(2.0f * 3.14159f * freq_sysid_Iref * (double) cnt_sysid * DT_TMR3);
                CONTROL_MODE = MODE_VALVE_OPEN_LOOP;
                cnt_sysid++;
                if (freq_sysid_Iref >= 300) {
                    cnt_sysid = 0;
                    CONTROL_UTILITY_MODE = MODE_NO_ACT;
                }
                break;
            }

            case MODE_FREQ_TEST: {
                float valve_pos_ref = 2500.0f * sin(2.0f * 3.141592f * freq_test_valve_ref * (float) cnt_freq_test * DT_TMR3);
                if(valve_pos_ref >= 0) {
                    valve_pos.ref = (double)VALVE_CENTER + (double)valve_pos_ref * ((double)VALVE_MAX_POS-(double)VALVE_CENTER)/10000.0f;
                } else {
                    valve_pos.ref = (double)VALVE_CENTER - (double)valve_pos_ref * ((double)VALVE_MIN_POS-(double)VALVE_CENTER)/10000.0f;
                }
                ref_array[cnt_freq_test] = valve_pos_ref;
                if(value>=(float) VALVE_CENTER) {
                    pos_array[cnt_freq_test] = 10000.0f*((double)value - (double)VALVE_CENTER)/((double)VALVE_MAX_POS - (double)VALVE_CENTER);
                } else {
                    pos_array[cnt_freq_test] = -10000.0f*((double)value - (double)VALVE_CENTER)/((double)VALVE_MIN_POS - (double)VALVE_CENTER);
                }

                CONTROL_MODE = MODE_VALVE_POSITION_CONTROL;
                cnt_freq_test++;
                if (freq_test_valve_ref * (float) cnt_freq_test * DT_TMR3 > 2) {
                    buffer_data_size = cnt_freq_test;
                    cnt_freq_test = 0;
                    cnt_send_buffer = 0;
                    freq_test_valve_ref = freq_test_valve_ref * 1.05f;
                    if (freq_test_valve_ref >= 400) {
                        CONTROL_UTILITY_MODE = MODE_NO_ACT;
                        CONTROL_MODE = MODE_NO_ACT;
                        CAN_TX_PWM((int16_t) (1)); //1300
                    }
                    CONTROL_MODE = MODE_NO_ACT;
                    CONTROL_UTILITY_MODE = MODE_SEND_OVER;

                }
                break;
            }
            case MODE_SEND_BUFFER: {
//                if (TMR2_COUNT_CAN_TX % (int) ((int) TMR_FREQ_5k/CAN_FREQ) == 0) {
//                    CAN_TX_PRES((int16_t) (pos_array[cnt_send_buffer]), (int16_t) (ref_array[cnt_send_buffer])); // 1400
//                    if(cnt_send_buffer>=buffer_data_size) {
//                        CONTROL_UTILITY_MODE = MODE_FREQ_TEST;
//                    }
//                    cnt_send_buffer++;
//                }

                break;
            }
            case MODE_SEND_OVER: {
                CAN_TX_TORQUE((int16_t) (buffer_data_size)); //1300
                CONTROL_UTILITY_MODE = MODE_NO_ACT;
                CONTROL_MODE = MODE_NO_ACT;
                break;
            }

            case MODE_STEP_TEST: {
                float valve_pos_ref = 0.0f;
                if (cnt_step_test < (int) (1.0f * (float) TMR_FREQ_5k)) {
                    valve_pos_ref = 0.0f;
                } else {
                    valve_pos_ref = 10000.0f;
                }
                if(valve_pos_ref >= 0) {
                    valve_pos.ref = (double)VALVE_CENTER + (double)valve_pos_ref * ((double)VALVE_MAX_POS-(double)VALVE_CENTER)/10000.0f;
                } else {
                    valve_pos.ref = (double)VALVE_CENTER - (double)valve_pos_ref * ((double)VALVE_MIN_POS-(double)VALVE_CENTER)/10000.0f;
                }
                ref_array[cnt_step_test] = valve_pos_ref;
                if(value>=(float) VALVE_CENTER) {
                    pos_array[cnt_step_test] = 10000.0f*((double)value - (double)VALVE_CENTER)/((double)VALVE_MAX_POS - (double)VALVE_CENTER);
                } else {
                    pos_array[cnt_step_test] = -10000.0f*((double)value - (double)VALVE_CENTER)/((double)VALVE_MIN_POS - (double)VALVE_CENTER);
                }

                CONTROL_MODE = MODE_VALVE_POSITION_CONTROL;
                cnt_step_test++;
                if (cnt_step_test > (int) (2.0f * (float) TMR_FREQ_5k)) {
                    buffer_data_size = cnt_step_test;
                    cnt_step_test = 0;
                    cnt_send_buffer = 0;
                    CONTROL_UTILITY_MODE = MODE_SEND_OVER;
                    CONTROL_MODE = MODE_NO_ACT;
                }
//                if (cnt_step_test > (int) (2.0f * (float) TMR_FREQ_5k))
//                {
//                    CONTROL_UTILITY_MODE = MODE_NO_ACT;
//                    CONTROL_MODE = MODE_NO_ACT;
//                    CAN_TX_PWM((int16_t) (1)); //1300
//                }

                break;
            }

            default:
                break;
        }

        // CONTROL MODE ------------------------------------------------------------

        switch (CONTROL_MODE) {
            case MODE_NO_ACT: {
                V_out = 0.0f;
                break;
            }

            case MODE_VALVE_POSITION_CONTROL: {
                if (OPERATING_MODE == 5) { //SW Valve
                
                    ///////////For Test LIMC///////////////////////////////////////////////////////////////////////////////////////////////////
                    for(int i=0; i<9; i++) {
                        valve_ref_pos_buffer[i] = valve_ref_pos_buffer[i+1];
                    }
                    valve_ref_pos_buffer[9] = valve_pos.ref;
                    VALVE_POS_CONTROL(valve_ref_pos_buffer[0]);
                    ///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
                
                
                    //VALVE_POS_CONTROL(valve_pos.ref);
                    V_out = Vout.ref;
                } else if (CURRENT_CONTROL_MODE == 0) { //PWM
                    V_out = valve_pos.ref;
                } else {
                    I_REF = valve_pos.ref * 0.001f;
                }
                break;
            }

            case MODE_JOINT_CONTROL: {

                double torq_ref = 0.0f;
                pos.err = (pos.ref - pos.sen)/(float)(ENC_PULSE_PER_POSITION); //[mm]
                vel.err = (0.0f - vel.sen)/(float)(ENC_PULSE_PER_POSITION); //[mm/s]
                pos.err_sum += pos.err/(float) TMR_FREQ_5k; //[mm]

                //K & D Low Pass Filter
                float alpha_K_D = 1.0f/(1.0f + 5000.0f/(2.0f*3.14f*30.0f)); // f_cutoff : 30Hz
                K_LPF = K_LPF*(1.0f-alpha_K_D)+K_SPRING*(alpha_K_D);
                D_LPF = D_LPF*(1.0f-alpha_K_D)+D_DAMPER*(alpha_K_D);

//                torq_ref = torq.ref + K_LPF * pos.err - D_LPF * vel.sen / ENC_PULSE_PER_POSITION; //[N]
                torq_ref = torq.ref;

                // torque feedback
                torq.err = torq_ref - torq.sen; //[N]
                torq.err_sum += torq.err/(float) TMR_FREQ_5k; //[N]

                if (((OPERATING_MODE&0b110)>>1) == 0 || ((OPERATING_MODE&0b110)>>1) == 1) {

                    double I_REF_POS = 0.0f;
                    double I_REF_FORCE_FB = 0.0f; // I_REF by Force Feedback
                    double I_REF_VC = 0.0f; // I_REF for velocity compensation

                    double temp_vel_pos = 0.0f;
                    double temp_vel_torq = 0.0f;
                    double wn_Pos = 2.0f * PI * 5.0f; // f_cut : 5Hz Position Control

                    if ((OPERATING_MODE & 0x01) == 0) { // Rotary Mode
                        temp_vel_pos = (0.01f * (double) P_GAIN_JOINT_POSITION * wn_Pos * pos.err + 0.01f * (double) I_GAIN_JOINT_POSITION * wn_Pos * pos.err_sum + 0.01f * (double) VELOCITY_COMP_GAIN * vel.ref / ENC_PULSE_PER_POSITION) * PI / 180.0f; // rad/s
                        //                            L when P-gain = 100, f_cut = 10Hz                                 L feedforward velocity
                    } else if ((OPERATING_MODE & 0x01) == 1) {
                        temp_vel_pos = (0.01f * (double) P_GAIN_JOINT_POSITION * wn_Pos * pos.err + 0.01f * (double) I_GAIN_JOINT_POSITION * wn_Pos * pos.err_sum + 0.01f * (double) VELOCITY_COMP_GAIN * vel.ref / ENC_PULSE_PER_POSITION); // mm/s
                        //                            L when P-gain = 100, f_cut = 10Hz                                 L feedforward velocity
                    }
                    if (temp_vel_pos > 0.0f) I_REF_POS = temp_vel_pos * ((double) PISTON_AREA_A * 0.00006f / (K_v * sqrt(2.0f * alpha3 / (alpha3 + 1.0f))));
                    else I_REF_POS = temp_vel_pos * ((double) PISTON_AREA_B * 0.00006f / (K_v * sqrt(2.0f / (alpha3 + 1.0f))));

                    // velocity compensation for torque control
                    if ((OPERATING_MODE & 0x01) == 0) { // Rotary Mode
                        I_REF_FORCE_FB = 0.001f * ((double) P_GAIN_JOINT_TORQUE * torq.err + (double) I_GAIN_JOINT_TORQUE * torq.err_sum);
                        //                temp_vel_torq = (0.01 * (double) VELOCITY_COMP_GAIN * (double) CUR_VELOCITY / (double) ENC_PULSE_PER_POSITION) * PI / 180.0; // rad/s
                        temp_vel_torq = (0.01f * (double) VELOCITY_COMP_GAIN * vel.ref / (double) ENC_PULSE_PER_POSITION) * PI / 180.0f; // rad/s
                        //                                                          L feedforward velocity
                    } else if ((OPERATING_MODE & 0x01) == 1) {
                        I_REF_FORCE_FB = 0.001f * 0.01f*((double) P_GAIN_JOINT_TORQUE * torq.err + (double) I_GAIN_JOINT_TORQUE * torq.err_sum); // Linear Actuators are more sensitive.
                        //                temp_vel_torq = (0.01 * (double) VELOCITY_COMP_GAIN * (double) CUR_VELOCITY / (double) ENC_PULSE_PER_POSITION); // mm/s
                        temp_vel_torq = (0.01f * (double) VELOCITY_COMP_GAIN * vel.ref / (double) ENC_PULSE_PER_POSITION); // mm/s
                        //                                                          L feedforward velocity
                    }
                    if (temp_vel_torq > 0.0f) I_REF_VC = temp_vel_torq * ((double) PISTON_AREA_A * 0.00006f / (K_v * sqrt(2.0f * alpha3 / (alpha3 + 1.0f))));
                    else I_REF_VC = temp_vel_torq * ((double) PISTON_AREA_B * 0.00006f / (K_v * sqrt(2.0f / (alpha3 + 1.0f))));
                    //                                                  L   velocity(rad/s or mm/s) >> I_ref(mA)
                    //            Ref_Joint_FT_dot = (Ref_Joint_FT_Nm - Ref_Joint_FT_Nm_old) / TMR_DT_5k;
                    //            Ref_Joint_FT_Nm_old = Ref_Joint_FT_Nm;

                    I_REF = (1.0f - alpha_trans) * I_REF_POS + alpha_trans * (I_REF_VC + I_REF_FORCE_FB);

                    // Anti-windup for FT
                    if (I_GAIN_JOINT_TORQUE != 0) {
                        double I_MAX = 10.0f; // Maximum Current : 10mV
                        double Ka = 2.0f / ((double) I_GAIN_JOINT_TORQUE * 0.001f);
                        if (I_REF > I_MAX) {
                            double I_rem = I_REF - I_MAX;
                            I_rem = Ka*I_rem;
                            I_REF = I_MAX;
                            torq.err_sum = torq.err_sum - I_rem /(float) TMR_FREQ_5k;
                        } else if (I_REF < -I_MAX) {
                            double I_rem = I_REF - (-I_MAX);
                            I_rem = Ka*I_rem;
                            I_REF = -I_MAX;
                            torq.err_sum = torq.err_sum - I_rem /(float) TMR_FREQ_5k;
                        }
                    }

                } else {
                    float VALVE_POS_RAW_FORCE_FB = 0.0f;
                    float VALVE_POS_RAW_FORCE_FF = 0.0f;
                    float VALVE_POS_RAW = 0.0f;

                    VALVE_POS_RAW_FORCE_FB = alpha_trans*(((float) P_GAIN_JOINT_TORQUE * torq.err + (float) I_GAIN_JOINT_TORQUE * torq.err_sum) * 0.01f
                                                          + DDV_JOINT_POS_FF(vel.sen))+ (1.0f-alpha_trans) * (P_GAIN_JOINT_POSITION * 0.01f * pos.err + DDV_JOINT_POS_FF(vel.ref));

                    VALVE_POS_RAW_FORCE_FF = P_GAIN_JOINT_TORQUE_FF * torq_ref * 0.001f + D_GAIN_JOINT_TORQUE_FF * (torq_ref - torq_ref_past) * 0.0001f;

                    VALVE_POS_RAW = VALVE_POS_RAW_FORCE_FB + VALVE_POS_RAW_FORCE_FF;


                    if (VALVE_POS_RAW >= 0) {
                        valve_pos.ref = VALVE_POS_RAW + VALVE_DEADZONE_PLUS;
                    } else {
                        valve_pos.ref = VALVE_POS_RAW + VALVE_DEADZONE_MINUS;
                    }

                    if(I_GAIN_JOINT_TORQUE != 0) {
                        double Ka = 2.0f / (double) I_GAIN_JOINT_TORQUE * 100.0f;
                        if(valve_pos.ref>VALVE_MAX_POS) {
                            double valve_pos_rem = valve_pos.ref - VALVE_MAX_POS;
                            valve_pos_rem = valve_pos_rem * Ka;
                            valve_pos.ref = VALVE_MAX_POS;
                            torq.err_sum = torq.err_sum - valve_pos_rem/(float) TMR_FREQ_5k;
                        } else if(valve_pos.ref < VALVE_MIN_POS) {
                            double valve_pos_rem = valve_pos.ref - VALVE_MIN_POS;
                            valve_pos_rem = valve_pos_rem * Ka;
                            valve_pos.ref = VALVE_MIN_POS;
                            torq.err_sum = torq.err_sum - valve_pos_rem/(float) TMR_FREQ_5k;
                        }
                    }
                    
                    ///////////For Test LIMC///////////////////////////////////////////////////////////////////////////////////////////////////
                    for(int i=0; i<9; i++) {
                        valve_ref_pos_buffer[i] = valve_ref_pos_buffer[i+1];
                    }
                    valve_ref_pos_buffer[9] = valve_pos.ref;
                    ///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
                    
                    ///////////For Test LIMC///////////////////////////////////////////////////////////////////////////////////////////////////
                    //VALVE_POS_CONTROL(valve_pos.ref);
                    VALVE_POS_CONTROL(valve_ref_pos_buffer[0]);
                    ///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

//                    Vout.ref = (float) P_GAIN_JOINT_POSITION * 0.01f * ((float) pos.err);
                    V_out = (float) Vout.ref;

                }

                torq_ref_past = torq_ref;


                break;
            }

            case MODE_VALVE_OPEN_LOOP: {
                V_out = (float) Vout.ref;
                break;
            }

            case MODE_JOINT_ADAPTIVE_BACKSTEPPING: {


                float Va = (1256.6f + Amm * pos.sen/(float)(ENC_PULSE_PER_POSITION)) * 0.000000001f; // 4mm pipe * 100mm + (25mm Cylinder 18mm Rod) * x,      unit : m^3
                float Vb = (1256.6f + Amm  * (79.0f - pos.sen/(float)(ENC_PULSE_PER_POSITION))) * 0.000000001f; // 4mm pipe * 100mm + (25mm Cylinder 18mm Rod) * (79.0mm-x),      unit : m^3

//                float Va = (1256.6f + Amm * 39.5f) * 0.000000001f; // 4mm pipe * 100mm + (25mm Cylinder 18mm Rod) * x,      unit : m^3
//                float Vb = (1256.6f + Amm  * 39.5f) * 0.000000001f; // 4mm pipe * 100mm + (25mm Cylinder 18mm Rod) * (79.0mm-x),      unit : m^3
                V_adapt = 1.0f / (1.0f/Va + 1.0f/Vb); //initial 0.0000053f


                float f3 = -Amm*Amm*beta*0.000001f*0.000001f/V_adapt * vel.sen/(float)(ENC_PULSE_PER_POSITION)*0.001f; // unit : N/s    //xdot=10mm/s일때 -137076

                float g3_prime = 0.0f;
                if (torq.sen > Amm*(Ps-Pt)*0.000001f) {
                    g3_prime = 1.0f;
                } else if (torq.sen < -Amm*(Ps-Pt)*0.000001f) {
                    g3_prime = -1.0f;
                } else {
                    if ((value-VALVE_CENTER) > 0) {
                        g3_prime = sqrt(Ps-Pt-torq.sen/Amm*1000000.0f);
//                        g3_prime = sqrt(Ps-Pt);
                    } else {
                        g3_prime = sqrt(Ps-Pt+torq.sen/Amm*1000000.0f);
//                        g3_prime = sqrt(Ps-Pt);
                    }
                }
                float tau = 0.01f;
                float K_valve = 0.0004f;

                float x_v = 0.0f;   //x_v : -1~1
                if(value>=VALVE_CENTER) {
                    x_v = 1.0f*((double)value - (double)VALVE_CENTER)/((double)VALVE_MAX_POS - (double)VALVE_CENTER);
                } else {
                    x_v = -1.0f*((double)value - (double)VALVE_CENTER)/((double)VALVE_MIN_POS - (double)VALVE_CENTER);
                }
                float f4 = -x_v/tau;
                float g4 = K_valve/tau;

                float torq_ref_dot = torq.ref_diff * 500.0f;

                pos.err = (pos.ref - pos.sen)/(float)(ENC_PULSE_PER_POSITION); //[mm]
                vel.err = (0.0f - vel.sen)/(float)(ENC_PULSE_PER_POSITION); //[mm/s]
                pos.err_sum += pos.err/(float) TMR_FREQ_5k; //[mm]

                torq.err = torq.ref - torq.sen; //[N]
                torq.err_sum += torq.err/(float) TMR_FREQ_5k; //[N]

                float k3 = 20000.0f; //2000
                float k4 = 10.0f;
                float rho3 = 3.2f;
                float rho4 = 25000000.0f;
                float x_4_des = (-f3 + torq_ref_dot - k3*(-torq.err))/(gamma_hat*g3_prime);
                if (x_4_des > 1) x_4_des = 1;
                else if (x_4_des < -1) x_4_des = -1;

                if (x_4_des > 0) {
                    valve_pos.ref = x_4_des * (float)(VALVE_MAX_POS - VALVE_CENTER) + (float) VALVE_CENTER;
                } else {
                    valve_pos.ref = x_4_des * (float)(VALVE_CENTER - VALVE_MIN_POS) + (float) VALVE_CENTER;
                }


                float x_4_des_dot = (x_4_des - x_4_des_old)*(float) TMR_FREQ_5k;
                x_4_des_old = x_4_des;

                V_out = (-f4 + x_4_des_dot - k4*(x_v-x_4_des)- rho3/rho4*gamma_hat*g3_prime*(-torq.err))/g4;

                float rho_gamma = 50000.0f;//5000
                float gamma_hat_dot = rho3*(-torq.err)/rho_gamma*((-f3+torq_ref_dot-k3*(-torq.err))/gamma_hat + g3_prime*(x_v-x_4_des));
                gamma_hat = gamma_hat + gamma_hat_dot / (float) TMR_FREQ_5k;
                break;
            }

            case MODE_RL: {
                //t.reset();
                //t.start();

//                if(LED == 0) LED = 1;
//                else LED = 0;

                if (Update_Done_Flag == 1) {
                    //Gather Data on each loop
//                  pos.err = (pos.ref - pos.sen)/(float)(ENC_PULSE_PER_POSITION); //[mm]
//                  train_set_x[RL_timer] = pos.sen/(float)(ENC_PULSE_PER_POSITION)/35.0f - 1.0f;   //-1.0~1.0
//                  train_set_error[RL_timer] = pos.err/70.0f;      //-1.0~1.0
                    pos.err = pos.sen/(float)(ENC_PULSE_PER_POSITION)  - virt_pos; //[mm]
                    train_set_x[RL_timer] = virt_pos/70.0f;   //-1.0~1.0
                    train_set_error[RL_timer] = pos.err/70.0f;      //-1.0~1.0
                    //train_set_count[RL_timer] = (float) RL_timer / (batch_size *num_batch);  //-1.0~1.0
                    //float temp_array[3] = {train_set_x[RL_timer], train_set_error[RL_timer], train_set_count[RL_timer]};
                    float temp_array[2] = {train_set_x[RL_timer], train_set_error[RL_timer]};
                    Actor_Network(temp_array);
                    for (int i=0; i<num_hidden_unit1; i++) {
                        hx_a_sum_array[RL_timer][i] = hx_a_sum[i];
                    }
                    for (int i=0; i<num_hidden_unit2; i++) {
                        hxh_a_sum_array[RL_timer][i] = hxh_a_sum[i];
                    }
                    hxhh_a_sum_array[RL_timer][0] = hxhh_a_sum[0];
                    hxhh_a_sum_array[RL_timer][1] = hxhh_a_sum[1];
                    mean_array[RL_timer] = mean;
                    deviation_array[RL_timer] = deviation;
                    action_array[RL_timer] = rand_normal(mean_array[RL_timer], deviation_array[RL_timer]);

                    virt_pos = virt_pos + (action_array[RL_timer] - 5.0f) * 1000.0f * 0.0002f;
                    if (virt_pos > 70 ) {
                        virt_pos = 70.0f;
                    }else if(virt_pos < -70) {
                        virt_pos = -70.0f;
                    }

                    RL_timer++;


                    if (RL_timer >= batch_size) {
                        RL_timer = 0;
                        batch++;
                        for(int i=0; i<batch_size; i++) {
                            state_array[i][0] = train_set_x[i];
                            state_array[i][1] = train_set_error[i];
                            //state_array[i][2] = train_set_count[i];
                        }
                        Update_Case = 1;
                        Update_Done_Flag = 0;
                        logging1 = virt_pos;

                        if(batch >= num_batch) {
                            batch = 0;
                            RL_timer = 0;
                            Update_Case = 2;
                            Update_Done_Flag = 0;
                            virt_pos = 10.0f;
                        }
                    }
                }

                else {
                    pos.err = pos.sen/(float)(ENC_PULSE_PER_POSITION) - virt_pos; //[mm]
                    float temp_array[3] = {0.0f};
                    temp_array[0] = virt_pos/70.0f;   //-1.0~1.0
                    temp_array[1] = pos.err/70.0f;      //-1.0~1.0
                    //temp_array[2] = (float) RL_timer / (batch_size *num_batch);  //-1.0~1.0
                    Actor_Network(temp_array);
                    action = rand_normal(mean, deviation);
                    //logging1 = action;
                    //logging2 = mean;
                    //logging4 = deviation;
                    virt_pos = virt_pos + (action-5.0f) * 1000.0f * 0.0002f;
                    if (virt_pos > 70) {
                        virt_pos = 70.0f;
                    }else if(virt_pos < -70) {
                        virt_pos = -70.0f;
                    }

                    logging3 = virt_pos;
                }

                //t.stop();
                //logging1 = t.read()*1000.0f;    //msec

                break;
            }

            default:
                break;
        }


        if (((OPERATING_MODE&0b110)>>1) == 0 || ((OPERATING_MODE&0b110)>>1) == 1) { //Moog Valve or KNR Valve

            ////////////////////////////////////////////////////////////////////////////
            ////////////////////////////  CURRENT CONTROL //////////////////////////////
            ////////////////////////////////////////////////////////////////////////////
            if (CURRENT_CONTROL_MODE) {
                double alpha_update_Iref = 1.0f / (1.0f + 5000.0f / (2.0f * 3.14f * 300.0f)); // f_cutoff : 500Hz
                I_REF_fil = (1.0f - alpha_update_Iref) * I_REF_fil + alpha_update_Iref*I_REF;

                I_ERR = I_REF_fil - cur.sen;
                I_ERR_INT = I_ERR_INT + (I_ERR) * 0.0002f;


                // Moog Valve Current Control Gain
                double R_model = 500.0f; // ohm
                double L_model = 1.2f;
                double w0 = 2.0f * 3.14f * 150.0f;
                double KP_I = 0.1f * L_model*w0;
                double KI_I = 0.1f * R_model*w0;

                // KNR Valve Current Control Gain
                if (((OPERATING_MODE & 0b110)>>1) == 1) { // KNR Valve
                    R_model = 163.0f; // ohm
                    L_model = 1.0f;
                    w0 = 2.0f * 3.14f * 80.0f;
                    KP_I = 1.0f * L_model*w0;
                    KI_I = 0.08f * R_model*w0;
                }

                double FF_gain = 1.0f;

                VALVE_PWM_RAW = KP_I * 2.0f * I_ERR + KI_I * 2.0f* I_ERR_INT;
                //        VALVE_PWM_RAW = VALVE_PWM_RAW + FF_gain * (R_model*I_REF); // Unit : mV
                I_REF_fil_diff = I_REF_fil - I_REF_fil_old;
                I_REF_fil_old = I_REF_fil;
//                VALVE_PWM_RAW = VALVE_PWM_RAW + FF_gain * (R_model * I_REF_fil + L_model * I_REF_fil_diff * 5000.0f); // Unit : mV
                VALVE_PWM_RAW = VALVE_PWM_RAW + FF_gain * (R_model * I_REF_fil); // Unit : mV
                double V_MAX = 12000.0f; // Maximum Voltage : 12V = 12000mV

                double Ka = 3.0f / KP_I;
                if (VALVE_PWM_RAW > V_MAX) {
                    V_rem = VALVE_PWM_RAW - V_MAX;
                    V_rem = Ka*V_rem;
                    VALVE_PWM_RAW = V_MAX;
                    I_ERR_INT = I_ERR_INT - V_rem * 0.0002f;
                } else if (VALVE_PWM_RAW < -V_MAX) {
                    V_rem = VALVE_PWM_RAW - (-V_MAX);
                    V_rem = Ka*V_rem;
                    VALVE_PWM_RAW = -V_MAX;
                    I_ERR_INT = I_ERR_INT - V_rem * 0.0002f;
                }
                Cur_Valve_Open_pulse = cur.sen / mA_PER_pulse;
            } else {
                VALVE_PWM_RAW = I_REF * mV_PER_mA;
                Cur_Valve_Open_pulse = I_REF / mA_PER_pulse;
            }

            ////////////////////////////////////////////////////////////////////////////
            /////////////////  Dead Zone Cancellation & Linearization //////////////////
            ////////////////////////////////////////////////////////////////////////////
            // Dead Zone Cancellation (Mechanical Valve dead-zone)
            if (FLAG_VALVE_DEADZONE) {
                if (VALVE_PWM_RAW > 0) VALVE_PWM_RAW = VALVE_PWM_RAW + VALVE_DEADZONE_PLUS * mV_PER_pulse; // unit: mV
                else if (VALVE_PWM_RAW < 0) VALVE_PWM_RAW = VALVE_PWM_RAW + VALVE_DEADZONE_MINUS * mV_PER_pulse; // unit: mV

                VALVE_PWM_VALVE_DZ = VALVE_PWM_RAW + (double)VALVE_CENTER * mV_PER_pulse; // unit: mV

            } else {
                VALVE_PWM_VALVE_DZ = VALVE_PWM_RAW;
            }

            // Output Voltage Linearization
            double CUR_PWM_nonlin = VALVE_PWM_VALVE_DZ; // Unit : mV
            double CUR_PWM_lin = PWM_duty_byLT(CUR_PWM_nonlin);  // -8000~8000

            // Dead Zone Cancellation (Electrical dead-zone)
            if (CUR_PWM_lin > 0) V_out = (float) (CUR_PWM_lin + 169.0f);
            else if (CUR_PWM_lin < 0) V_out = (float) (CUR_PWM_lin - 174.0f);
            else V_out = (float) (CUR_PWM_lin);
        } else {            //////////////////////////sw valve
            // Output Voltage Linearization
//            double CUR_PWM_nonlin = V_out; // Unit : mV
//            double CUR_PWM_lin = PWM_duty_byLT(CUR_PWM_nonlin);  // -8000~8000

            // Dead Zone Cancellation (Electrical dead-zone)
//            if (CUR_PWM_lin > 0) V_out = (float) (CUR_PWM_lin + 169.0f);
//            else if (CUR_PWM_lin < 0) V_out = (float) (CUR_PWM_lin - 174.0f);
//            else V_out = (float) (CUR_PWM_lin);

            if (V_out > 0 ) V_out = (V_out + 180.0f)/0.8588f;
            else if (V_out < 0) V_out = (V_out - 200.0f)/0.8651f;
            else V_out = 0.0f;
        }

//        if(V_out > 0.0f) V_out = (float) (V_out + 169.0f);
//        else if(V_out < 0.0f) V_out = (float) (V_out - 174.0f);
//        else V_out = V_out;

        /*******************************************************
        ***     PWM
        ********************************************************/
        if(DIR_VALVE<0) {
            V_out = -V_out;
        }

        if (V_out >= VALVE_VOLTAGE_LIMIT*1000.0f) {
            V_out = VALVE_VOLTAGE_LIMIT*1000.0f;
        } else if(V_out<=-VALVE_VOLTAGE_LIMIT*1000.0f) {
            V_out = -VALVE_VOLTAGE_LIMIT*1000.0f;
        }
        PWM_out= V_out/(SUPPLY_VOLTAGE*1000.0f); // Full duty : 12000.0mV

        // Saturation of output voltage to 12.0V
        if(PWM_out > 1.0f) PWM_out=1.0f;
        else if (PWM_out < -1.0f) PWM_out=-1.0f;

        if (PWM_out>0.0f) {
            dtc_v=0.0f;
            dtc_w=PWM_out;
        } else {
            dtc_v=-PWM_out;
            dtc_w=0.0f;
        }

        //pwm
        TIM4->CCR2 = (PWM_ARR)*(1.0f-dtc_v);
        TIM4->CCR1 = (PWM_ARR)*(1.0f-dtc_w);


        if (TMR2_COUNT_CAN_TX % (int) ((int) TMR_FREQ_5k/CAN_FREQ) == 0) {

            // Position, Velocity, and Torque (ID:1200)
            if (flag_data_request[0] == HIGH) {
                if ((OPERATING_MODE & 0b01) == 0) { // Rotary Actuator
                    if (SENSING_MODE == 0) {
                        CAN_TX_POSITION_FT((int16_t) (pos.sen), (int16_t) (vel.sen/10.0f), (int16_t) (torq.sen*10.0f));
                    } else if (SENSING_MODE == 1) {
                        CAN_TX_POSITION_PRESSURE((int16_t) (pos.sen), (int16_t) (vel.sen/10.0f), (int16_t) ((pres_A.sen)*5.0f), (int16_t) ((pres_B.sen)*5.0f));
                    }
                } else if ((OPERATING_MODE & 0b01) == 1) { // Linear Actuator
                    if (SENSING_MODE == 0) {
                        CAN_TX_POSITION_FT((int16_t) (pos.sen/10.0f), (int16_t) (vel.sen/256.0f), (int16_t) (torq.sen * 10.0f * (float)(TORQUE_SENSOR_PULSE_PER_TORQUE)));
                    } else if (SENSING_MODE == 1) {
                        CAN_TX_POSITION_PRESSURE((int16_t) (pos.sen/10.0f), (int16_t) (vel.sen/256.0f), (int16_t) ((pres_A.sen)*5.0f), (int16_t) ((pres_B.sen)*5.0f));
                    }
                }
            }
            if (flag_data_request[1] == HIGH) {
                CAN_TX_TORQUE((int16_t) (return_G[0]*100.0f)); //1300
            }


            if (flag_data_request[2] == HIGH) {
                double t_value = 0.0f;
                if(value>=(float) VALVE_CENTER) {
                    t_value = 10000.0f*((double)value - (double)VALVE_CENTER)/((double)VALVE_MAX_POS - (double)VALVE_CENTER);
                } else {
                    t_value = -10000.0f*((double)value - (double)VALVE_CENTER)/((double)VALVE_MIN_POS - (double)VALVE_CENTER);
                }
                double t_value_ref = 0.0f;
                if(valve_pos.ref>=(float) VALVE_CENTER) {
                    t_value_ref = 10000.0f*((double)valve_pos.ref - (double)VALVE_CENTER)/((double)VALVE_MAX_POS - (double)VALVE_CENTER);
                } else {
                    t_value_ref = -10000.0f*((double)valve_pos.ref - (double)VALVE_CENTER)/((double)VALVE_MIN_POS - (double)VALVE_CENTER);
                }
                CAN_TX_PRES((int16_t) (t_value), (int16_t) (t_value_ref)); // 1400
            }

            //If it doesn't rest, below can can not work.
            for (can_rest = 0; can_rest < 10000; can_rest++) {
                ;
            }

            if (flag_data_request[3] == HIGH) {
                //PWM
                //CAN_TX_PWM((int16_t) (V[0]*100.0f)); //1500
                CAN_TX_PWM((int16_t) (f_future[1])); //1500
            }

            if (flag_data_request[4] == HIGH) {
                //valve position
                CAN_TX_VALVE_POSITION((int16_t) pos.sen/(float)(ENC_PULSE_PER_POSITION), (int16_t) virt_pos, (int16_t) (logging2*1000.0f), (int16_t) (logging4*1000.0f)); //1600
                //CAN_TX_VALVE_POSITION((int16_t) action_array[20], (int16_t) virt_pos, (int16_t) Update_Case*1000, (int16_t) (logging4*1000.0f)); //1600
            }

            // Others : Reference position, Reference FT, PWM, Current  (ID:1300)
//        if (flag_data_request[1] == HIGH) {
//            CAN_TX_SOMETHING((int) (FORCE_VREF), (int16_t) (1), (int16_t) (2), (int16_t) (3));
//        }
            //if (flag_delay_test == 1){
            //CAN_TX_PRES((int16_t) (0),(int16_t) torq_ref);
            //}

            TMR2_COUNT_CAN_TX = 0;
        }
        TMR2_COUNT_CAN_TX++;

    }
    TIM3->SR = 0x0;  // reset the status register

}