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Dependencies:   mbed FastPWM

main.cpp

Committer:
Lightvalve
Date:
2021-01-08
Revision:
249:21430e06f706
Parent:
248:c925c863ea87
Child:
250:ae6e0c80029d

File content as of revision 249:21430e06f706:

//210108_3  500Hz   num_input 9    210105 data
#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 torq_dot;
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] = {
    {0.29663917422294617f,0.41587597131729126f,-0.40238484740257263f,-0.31135293841362f,0.09028628468513489f,-0.15008357167243958f,0.0060180313885211945f,-0.25428661704063416f,-0.38775452971458435f,-0.08711326122283936f,0.029678843915462494f,-0.5523331761360168f,0.17435714602470398f,0.049568623304367065f,-0.11123791337013245f,0.11293289065361023f},
{-0.13885954022407532f,0.008150720968842506f,0.47685256600379944f,0.2796906530857086f,0.32721421122550964f,-0.15552201867103577f,0.13772499561309814f,-0.03211083635687828f,-0.33916792273521423f,0.5187415480613708f,-0.2988690733909607f,-0.5000523328781128f,-0.3222626745700836f,-0.22863739728927612f,-0.3115236759185791f,0.08912834525108337f},
{-0.36185380816459656f,-0.01113466639071703f,-0.17586973309516907f,-0.40819093585014343f,-0.25984901189804077f,0.016262324526906013f,-0.5287548899650574f,-0.0727643221616745f,0.21207480132579803f,-0.2510138154029846f,-0.3024713099002838f,-0.2796802222728729f,-0.0891394317150116f,0.3824678361415863f,-0.12040254473686218f,0.056863874197006226f},
{0.15546533465385437f,0.4914516508579254f,-0.2568590044975281f,-0.43472781777381897f,0.2994142472743988f,0.15819527208805084f,0.14573554694652557f,-0.2842216193675995f,-0.3083231747150421f,-0.3176731467247009f,-0.17488853633403778f,0.20977792143821716f,-0.2630729377269745f,-0.27504676580429077f,-0.4301341474056244f,-0.08075663447380066f},
{0.48212262988090515f,0.40492209792137146f,-0.06806144118309021f,-0.3792468011379242f,-0.11923012137413025f,-0.23530688881874084f,-0.21158641576766968f,-0.42907828092575073f,-0.14715367555618286f,0.4203021228313446f,0.006408415734767914f,0.3745218813419342f,-0.419051855802536f,-0.40804523229599f,0.24169525504112244f,0.03659626841545105f},
{-0.12619352340698242f,0.19174300134181976f,-0.31877976655960083f,-0.04390779882669449f,-0.14006736874580383f,-0.21398991346359253f,-0.7291432619094849f,-0.2562205493450165f,0.44291412830352783f,0.6389468312263489f,-0.16900624334812164f,0.3231842815876007f,-0.35098129510879517f,-0.15950220823287964f,-0.2785465717315674f,-0.2435975819826126f},
{0.04468771815299988f,0.2694479525089264f,0.3779745399951935f,0.10625391453504562f,-0.286765992641449f,-0.6106315851211548f,0.06032551825046539f,0.1240493655204773f,0.04552985727787018f,0.20586301386356354f,0.5519559979438782f,-1.0102519989013672f,0.4520128071308136f,0.11482951045036316f,-0.1275120973587036f,-0.1722896695137024f},
{-0.4707544147968292f,-0.39714711904525757f,-0.1917957365512848f,-0.021674744784832f,-0.18413209915161133f,-0.8700361847877502f,0.5609602928161621f,0.2770845890045166f,0.09915876388549805f,-0.2328445464372635f,0.6780804991722107f,0.27046671509742737f,-0.347939670085907f,-0.42903608083724976f,0.1774953305721283f,0.2401047646999359f},
{-0.15439578890800476f,-0.5200294256210327f,-0.2624427080154419f,0.3273162245750427f,-0.2676073908805847f,0.20046526193618774f,0.03604237735271454f,-0.1507950872182846f,0.8252518177032471f,0.06839548051357269f,-0.2259593904018402f,1.0545680522918701f,0.23076865077018738f,-0.04404708743095398f,-0.44072574377059937f,0.15690186619758606f},
};

const float h2[16][16] = {
    {-0.3888300061225891f,-0.33301249146461487f,-0.1355518400669098f,-0.37952423095703125f,0.21257463097572327f,-0.36136317253112793f,0.24208763241767883f,0.33804598450660706f,-0.2569337487220764f,-0.08110451698303223f,-0.27817511558532715f,0.35469159483909607f,-0.29972952604293823f,0.15880760550498962f,-0.35889360308647156f,-0.08369413018226624f},
{0.9094585180282593f,-0.20084045827388763f,-0.2232477068901062f,0.022348403930664062f,-0.31344151496887207f,0.9187012314796448f,0.08110490441322327f,-0.796314001083374f,-0.6019505262374878f,1.4344419240951538f,2.078198194503784f,0.12826785445213318f,0.08236726373434067f,0.513929009437561f,-0.7852200269699097f,0.7756533026695251f},
{-0.03531843423843384f,-0.4267989993095398f,-0.33276697993278503f,0.0032796859741210938f,-0.4177505671977997f,0.3844440281391144f,-0.3362900912761688f,0.37579968571662903f,0.3336181938648224f,0.019254565238952637f,-0.053793132305145264f,-0.04763022065162659f,0.2717372477054596f,0.3915339410305023f,-0.4008266031742096f,0.008691728115081787f},
{0.829369306564331f,-0.037088543176651f,0.3303629159927368f,-0.10298678278923035f,0.03958216309547424f,1.1753311157226562f,-0.39364370703697205f,-1.0809330940246582f,-1.399806022644043f,0.812737226486206f,-2.776177406311035f,-0.06223180890083313f,-1.3906004428863525f,0.9751940965652466f,-0.8362966179847717f,0.7644394040107727f},
{0.0065080225467681885f,0.4084913432598114f,0.34083792567253113f,0.08630749583244324f,-0.18584498763084412f,-0.10108181834220886f,0.1392066776752472f,0.14020100235939026f,0.12382212281227112f,0.31817105412483215f,-0.24523776769638062f,-0.4109385013580322f,-0.041146427392959595f,-0.1336672306060791f,0.19239845871925354f,-0.1465291678905487f},
{0.19369199872016907f,0.10641822218894958f,-0.21756651997566223f,-0.16729947924613953f,0.3574720323085785f,0.22665399312973022f,0.10581281781196594f,0.268216073513031f,0.06638725847005844f,-0.05752768740057945f,-0.3020212650299072f,0.37810656428337097f,0.036901701241731644f,0.1635662168264389f,0.05745241418480873f,0.0073737651109695435f},
{-0.4029591679573059f,-0.26807457208633423f,-0.1728709638118744f,-0.22050951421260834f,-0.299405962228775f,0.017986953258514404f,0.3826618492603302f,0.5415890216827393f,0.20813074707984924f,-0.21721883118152618f,-0.3750367760658264f,0.3528025448322296f,-0.015163726173341274f,0.01980692148208618f,0.4643106758594513f,-0.44261613488197327f},
{-0.1553884893655777f,0.0929887592792511f,0.07923837006092072f,0.1415313184261322f,-0.24100345373153687f,0.035420484840869904f,-0.23515468835830688f,0.48955461382865906f,-0.22871027886867523f,-0.6616853475570679f,-0.35328409075737f,-0.0841493010520935f,-0.6434178352355957f,-0.2802467942237854f,0.02801680937409401f,-0.43440064787864685f},
{-0.07246144115924835f,-0.18326310813426971f,0.16720524430274963f,0.011525928974151611f,-0.12579655647277832f,0.5384641289710999f,0.26028844714164734f,0.030630944296717644f,0.1539444476366043f,0.4313714802265167f,-1.2241016626358032f,-0.08900067210197449f,-0.5645046234130859f,-0.23248566687107086f,0.24500861763954163f,0.4273317754268646f},
{0.10190009325742722f,-0.21384187042713165f,0.07577396184206009f,-0.05684670805931091f,0.34398868680000305f,0.054179057478904724f,0.10196617245674133f,0.15645906329154968f,-0.22546876966953278f,0.0037930342368781567f,0.4444926083087921f,-0.4265243709087372f,0.39087945222854614f,0.3117143511772156f,-0.46703991293907166f,0.2941291034221649f},
{-0.37670740485191345f,-0.3690805435180664f,0.3855787217617035f,0.21942487359046936f,-0.0013443827629089355f,-0.08459454774856567f,0.37341418862342834f,0.25538870692253113f,0.45563217997550964f,-0.36620602011680603f,-0.10484421253204346f,-0.15164825320243835f,-0.13352882862091064f,-0.8643376231193542f,0.13016673922538757f,-0.2567961513996124f},
{0.008839505724608898f,-0.0046111345291137695f,-0.16272638738155365f,-0.18568435311317444f,-0.2280530333518982f,0.138400599360466f,0.07191351056098938f,0.4081989824771881f,0.08220343291759491f,0.27161240577697754f,-0.28040406107902527f,0.0015468299388885498f,-0.008710266090929508f,0.11106086522340775f,0.31602251529693604f,0.270530641078949f},
{0.20316341519355774f,-0.01405063271522522f,0.09861764311790466f,-0.16879788041114807f,-0.404694527387619f,0.13892611861228943f,-0.17759200930595398f,0.3851688802242279f,0.24458882212638855f,-0.2915504574775696f,0.22550490498542786f,-0.24272814393043518f,0.14730152487754822f,-0.4137716591358185f,0.17881467938423157f,-0.2877027690410614f},
{-0.2195536345243454f,0.02955836057662964f,0.40262481570243835f,-0.40885308384895325f,-0.12887510657310486f,-0.4060956835746765f,0.17089977860450745f,-0.3749438524246216f,0.028164535760879517f,0.030858129262924194f,0.07867559790611267f,-0.39648905396461487f,-0.040825873613357544f,-0.08236381411552429f,-0.013542592525482178f,-0.10870978236198425f},
{-0.12072217464447021f,-0.375680148601532f,-0.2350127398967743f,0.20186755061149597f,-0.36594828963279724f,0.13954707980155945f,0.3276398479938507f,0.22214189171791077f,0.22335270047187805f,-0.051959723234176636f,-0.27821671962738037f,-0.41584086418151855f,0.3025414049625397f,-0.21118895709514618f,-0.36947399377822876f,0.1889876425266266f},
{0.12349763512611389f,0.10101905465126038f,-0.3979831337928772f,-0.23517636954784393f,0.4234168231487274f,-0.21465477347373962f,0.2610546052455902f,0.05005693435668945f,-0.016834020614624023f,-0.349880188703537f,0.2895679771900177f,0.38406917452812195f,0.1496359407901764f,0.029400497674942017f,0.21077695488929749f,-0.10674196481704712f},
};

const float h3[16][16] = {
    {0.20138880610466003f,0.31971320509910583f,-0.573394775390625f,-0.31132131814956665f,-0.3762798309326172f,-0.4261515736579895f,-0.2775144875049591f,-0.10658112168312073f,0.5168919563293457f,0.07961633056402206f,0.40829774737358093f,0.06363576650619507f,-0.20960833132266998f,0.3711947202682495f,0.13634565472602844f,-0.38112565875053406f},
{0.19051507115364075f,0.16294768452644348f,0.4160015881061554f,0.05116799473762512f,-0.2918829917907715f,-0.14418381452560425f,-0.35893499851226807f,0.09588906168937683f,-0.2242071032524109f,0.1678912341594696f,0.05509382486343384f,-0.02252596616744995f,-0.40007027983665466f,0.4086398780345917f,-0.3398894965648651f,0.3448427617549896f},
{0.004781484603881836f,0.057733599096536636f,-0.40068915486335754f,-0.12630119919776917f,0.2725552022457123f,0.029532641172409058f,0.24218353629112244f,0.059943556785583496f,-0.4218027591705322f,0.1711505651473999f,0.232928067445755f,0.2649426758289337f,-0.1096067950129509f,-0.25758618116378784f,0.1579485833644867f,0.34988483786582947f},
{0.14744046330451965f,-0.14954188466072083f,-0.2823004126548767f,-0.20482586324214935f,-0.3508032262325287f,-0.3688071668148041f,0.01029101014137268f,0.03582140803337097f,0.1944337785243988f,0.39723339676856995f,0.0812627375125885f,-0.07741960883140564f,-0.25062668323516846f,-0.17132753133773804f,-0.32584911584854126f,-0.10801076889038086f},
{-0.23801851272583008f,-0.32108113169670105f,-0.347549170255661f,-0.16850975155830383f,0.4027153551578522f,-0.381073534488678f,-0.2942546606063843f,0.12287876009941101f,-0.20644505321979523f,0.1990034282207489f,-0.2864486277103424f,-0.25635671615600586f,0.38671061396598816f,-0.33340561389923096f,-0.14622977375984192f,0.11676457524299622f},
{-0.28616175055503845f,-0.12695540487766266f,-0.30583456158638f,-0.03626849874854088f,0.24763250350952148f,-0.03751462697982788f,-0.3386254608631134f,0.169498473405838f,0.47662490606307983f,0.3614100217819214f,0.06764152646064758f,-0.015877217054367065f,0.2642289698123932f,-0.35798028111457825f,0.20222005248069763f,0.30211254954338074f},
{0.2333069145679474f,0.0017639398574829102f,-0.30106985569000244f,-0.027164578437805176f,-0.24558454751968384f,0.3476872742176056f,-0.12298372387886047f,0.12251326441764832f,-0.4255034625530243f,-0.3266092538833618f,-0.3107597827911377f,0.28408458828926086f,0.06578537821769714f,-0.09853100776672363f,-0.25814658403396606f,-0.013455241918563843f},
{0.6252551674842834f,-1.7136082649230957f,1.6249260902404785f,1.672523856163025f,-0.28755253553390503f,0.13177838921546936f,0.13568851351737976f,-0.11005973815917969f,-1.5778653621673584f,-1.6947146654129028f,0.264227956533432f,-0.36500003933906555f,-1.7246160507202148f,0.5941118001937866f,0.2957947552204132f,0.07755979895591736f},
{0.18169909715652466f,-0.19895386695861816f,-0.05671519413590431f,0.36275410652160645f,0.06176760792732239f,0.07695844769477844f,0.12766453623771667f,0.0817842185497284f,-0.7237305045127869f,-0.6087480187416077f,-0.12001633644104004f,-0.08554613590240479f,-0.0011166516924276948f,0.027426540851593018f,-0.387156218290329f,-0.2686024308204651f},
{-1.7639572620391846f,0.9937340021133423f,-0.762538492679596f,-1.1919790506362915f,0.22843122482299805f,0.14367392659187317f,0.43251314759254456f,-0.11276862025260925f,0.9715967774391174f,0.7894815802574158f,-0.17702773213386536f,-0.42824557423591614f,1.2783340215682983f,0.0824713259935379f,0.10247305035591125f,0.11768892407417297f},
{-4.242254257202148f,3.9532933235168457f,-4.220984935760498f,-3.2578203678131104f,-0.28594839572906494f,-0.2543869614601135f,0.3854757249355316f,-0.35510146617889404f,3.874885082244873f,3.38134503364563f,0.025140076875686646f,-0.09252285957336426f,3.5076000690460205f,0.020325958728790283f,-0.2821711599826813f,-0.31494733691215515f},
{-0.19829243421554565f,-0.036789268255233765f,0.40402278304100037f,0.08938947319984436f,-0.3003213703632355f,-0.13985875248908997f,-0.05300605297088623f,0.2158009111881256f,-0.045280009508132935f,0.3853699862957001f,-0.28284311294555664f,-0.38101786375045776f,0.20273366570472717f,-0.2851206660270691f,-0.23302911221981049f,-0.04975670576095581f},
{-2.3402528762817383f,2.251093626022339f,-1.8143333196640015f,-1.686104416847229f,0.28627198934555054f,-0.05089947581291199f,-0.21972325444221497f,-0.12107464671134949f,1.4696484804153442f,1.7204586267471313f,0.42002591490745544f,0.2625511586666107f,2.0771658420562744f,0.20424117147922516f,-0.14932382106781006f,0.05037429928779602f},
{0.01017003320157528f,0.5383520722389221f,0.09068045765161514f,-0.3059485852718353f,-0.1828690618276596f,0.12154242396354675f,-0.3135022222995758f,-0.05303463339805603f,0.2918146252632141f,0.4535827040672302f,0.19363173842430115f,0.17974761128425598f,0.21057143807411194f,0.3842782974243164f,0.1783216893672943f,0.15743878483772278f},
{0.2572315037250519f,-0.7767909169197083f,0.5495519042015076f,0.8770574331283569f,0.29163259267807007f,0.3491267263889313f,0.2651456296443939f,0.27459242939949036f,-0.37017369270324707f,-0.9690517783164978f,0.0338018536567688f,-0.015062451362609863f,-0.9156760573387146f,-0.31157001852989197f,-0.1419163942337036f,-0.4173831343650818f},
{-0.7403416633605957f,0.7024995684623718f,-0.38165247440338135f,-0.6589585542678833f,0.18063348531723022f,0.4021502435207367f,-0.18067532777786255f,0.0808744728565216f,0.13344483077526093f,0.5048403143882751f,0.1375615894794464f,-0.3139927089214325f,0.32810354232788086f,-0.28314903378486633f,0.295305460691452f,0.26069560647010803f},
};

const float hout[16] = { -4.399260997772217f,0.904973030090332f,-1.0306147336959839f,-1.186169147491455f,-0.24832315742969513f,-0.1935586929321289f,-0.5914010405540466f,0.5897116661071777f,2.2783241271972656f,0.4730304181575775f,-0.31953302025794983f,-0.20998573303222656f,0.40309593081474304f,-0.33466991782188416f,0.07082188129425049f,0.5935964584350586f };

const float b1[16] = { -0.5132032632827759f,-1.1938527822494507f,-0.7500218152999878f,1.0411573648452759f,-1.3620671033859253f,1.3940210342407227f,0.8505174517631531f,1.1860228776931763f,0.3311760723590851f,-0.16578342020511627f,0.41973596811294556f,1.2696189880371094f,-0.40242457389831543f,-0.13635645806789398f,-0.85361248254776f,-0.41521793603897095f };

const float b2[16] = { 0.5477832555770874f,-0.05469924956560135f,-0.36899566650390625f,-0.7305267453193665f,-0.6980655789375305f,0.3870934545993805f,-1.2705386877059937f,-0.5881870985031128f,1.4541643857955933f,0.053963299840688705f,0.042596764862537384f,-0.9409856796264648f,-0.49485892057418823f,0.5978859066963196f,0.21442629396915436f,-0.16960793733596802f };

const float b3[16] = { 0.8192553520202637f,0.4740256071090698f,1.4711703062057495f,1.393757939338684f,-0.5335577726364136f,-0.5553005933761597f,-0.5806921124458313f,-1.019081473350525f,-0.13486835360527039f,1.6698031425476074f,-1.9048346281051636f,-2.072582483291626f,1.185135006904602f,-0.8330573439598083f,-0.9093554615974426f,-0.6499820947647095f };

const float bout[1] = { -0.06959325075149536f };

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;
                input_NN[ind] = f_past[time_interval*i] / 10000.0f + 0.5f;
                ind = ind + 1;
            }
//            input_NN[ind] = torq.sen / 10000.0f * 8.0f + 0.5f;
            input_NN[ind] = torq.sen / 10000.0f + 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] - torq.sen)/10000.0f + 0.5f;
//                input_NN[ind] = (f_future[time_interval*i+time_interval])/10000.0f*8.0f+0.5f;
                input_NN[ind] = (f_future[time_interval*i+time_interval])/10000.0f + 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;

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//////////////////////////////////////////
                    VALVE_POS_CONTROL(valve_pos.ref);
//                    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]);
                    ////////////////////////////////////////////////////////////
                    
                    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 + (float) D_GAIN_JOINT_TORQUE * (torq.ref_diff - torq_dot.sen)) * 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;
                        }
                    }

                    VALVE_POS_CONTROL(valve_pos.ref);

//                    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

                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 f3_hat = -a_hat * 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 K_valve = 0.0002f;

                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 = 2000.0f; //2000  //20000
                float k4 = 10.0f;
                float rho3 = 3.2f;
                float rho4 = 10000000.0f;  //25000000.0f;
                float x_4_des = (-f3_hat + 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;
                float V_input = 0.0f;
                V_out = (-f4 + x_4_des_dot - k4*(x_v-x_4_des)- rho3/rho4*gamma_hat*g3_prime*(-torq.err))/g4;
//                //V_out LPF
//                float alpha_V_out = 1.0f/(1.0f + 5000.0f/(2.0f*3.14f*50.0f)); // f_cutoff : 50Hz
//                V_out = V_out*(1.0f-alpha_V_out)+V_input*(alpha_V_out);

//                float rho_gamma = 5000.0f;//5000 for change //50000 for not change
//                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;
//
//                if(gamma_hat > 10000.0f) gamma_hat = 10000.0f;
//                else if(gamma_hat < 100.0f) gamma_hat = 100.0f;

                float rho_a = 0.00001f;
                float a_hat_dot = -rho3/rho_a*vel.sen/(float)(ENC_PULSE_PER_POSITION)*0.001f*(-torq.err);
                a_hat = a_hat + a_hat_dot / (float) TMR_FREQ_5k;

                if(a_hat > -3000000.0f) a_hat = -3000000.0f;
                else if(a_hat < -30000000.0f) a_hat = -30000000.0f;

                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 (int can_rest = 0; can_rest < 10000; can_rest++) {
                ;
            }

            if (flag_data_request[3] == HIGH) {
                //PWM
                CAN_TX_PWM((int16_t) (torq.ref)); //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) (a_hat*0.0001f), (int16_t) 0, (int16_t) 0, (int16_t) 0); //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

}