20210305

Dependencies:   mbed FastPWM

main.cpp

Committer:
Lightvalve
Date:
2020-12-24
Revision:
215:9aa288c10f68
Parent:
214:231d27008443
Child:
216:a81419fb58ea

File content as of revision 215:9aa288c10f68:

//201224_2
#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] = {
    {-0.3518959879875183f,-1.0181971788406372f,0.5238839387893677f,0.07460802793502808f,0.4083598852157593f,0.5267895460128784f,-0.24204020202159882f,0.022494137287139893f,-0.38182884454727173f,0.1710560917854309f,-0.6304952502250671f,-0.24469460546970367f,0.07800555229187012f,-0.11156265437602997f,0.9230948686599731f,0.01127579715102911f},
{-0.23303905129432678f,-0.24711905419826508f,0.4181930422782898f,-0.2855757474899292f,-0.4139590263366699f,0.6357643604278564f,-0.33242931962013245f,0.33744025230407715f,0.019223570823669434f,0.025203019380569458f,0.0015196951571851969f,-0.32244545221328735f,0.07627367973327637f,0.36681148409843445f,0.2662626802921295f,-0.055823683738708496f},
{0.054309576749801636f,-0.49540218710899353f,0.3860630691051483f,-0.3997206389904022f,0.37840962409973145f,-0.14458975195884705f,-0.3337523639202118f,-0.21087387204170227f,0.18194907903671265f,-0.15486115217208862f,-0.48218241333961487f,0.30044838786125183f,-0.10916683077812195f,0.13324618339538574f,-0.018999867141246796f,0.2987367808818817f},
{-0.28941866755485535f,0.2667725384235382f,-0.4305540919303894f,-0.3544938564300537f,-0.3382750153541565f,0.1611849069595337f,-0.4222949147224426f,0.2507844567298889f,0.405910849571228f,0.15534931421279907f,0.0912986472249031f,-0.21454837918281555f,-0.35986700654029846f,-0.4057389199733734f,-0.28181108832359314f,-0.042290735989809036f},
{0.260015070438385f,0.32970598340034485f,-0.8912553787231445f,-0.3760731518268585f,0.08130717277526855f,-0.6682697534561157f,0.35346728563308716f,0.05169829726219177f,0.39578813314437866f,0.3265618085861206f,0.1725350022315979f,-0.23878204822540283f,0.3847886323928833f,0.3495698571205139f,-0.6733472347259521f,0.2500562071800232f},
{0.07367211580276489f,0.7450180053710938f,-0.6315812468528748f,0.21967214345932007f,0.4170142412185669f,-0.770605206489563f,0.16131609678268433f,-0.05181002616882324f,0.03649970889091492f,0.3132137656211853f,0.716629147529602f,0.09533099830150604f,-0.004373282194137573f,0.35536396503448486f,-0.6000161170959473f,0.3825781047344208f},
{-0.1849803626537323f,-0.40095481276512146f,-0.2245466113090515f,0.10853719711303711f,-0.34670042991638184f,-0.6805928349494934f,-0.07871395349502563f,-0.3424152731895447f,-0.0723131000995636f,-0.09276700019836426f,-0.2896198034286499f,0.384247362613678f,0.1583765149116516f,0.25456663966178894f,-0.6039044260978699f,0.12134073674678802f},
{0.3363311290740967f,-0.12490702420473099f,-0.04714484512805939f,0.2931549549102783f,-0.2531799077987671f,-0.3935620188713074f,-0.15988385677337646f,-0.16074800491333008f,-0.3888390362262726f,-0.03829273581504822f,-0.06867220997810364f,0.09743418544530869f,-0.03030523657798767f,0.038140591233968735f,0.038169119507074356f,-0.34604939818382263f},
{-0.008942186832427979f,0.6577344536781311f,-0.4952816069126129f,-0.26002514362335205f,0.369967520236969f,0.021473055705428123f,0.06158176064491272f,0.3959408402442932f,-0.011539667844772339f,-0.3851383328437805f,0.126651793718338f,-0.17609961330890656f,-0.3491899371147156f,-0.46013858914375305f,0.06334633380174637f,-0.24532243609428406f},
{-0.23328730463981628f,0.4614630937576294f,-0.2081146091222763f,-0.14789578318595886f,-0.1547950804233551f,-0.39302149415016174f,-0.09938845038414001f,0.10942506790161133f,-0.3328583538532257f,0.32593780755996704f,-0.3129696547985077f,0.019227905198931694f,0.025072604417800903f,-0.15357577800750732f,-0.2597353756427765f,-0.10979597270488739f},
{-0.2889084219932556f,0.35974031686782837f,-0.487824410200119f,0.358765184879303f,-0.4070855379104614f,-0.48963862657546997f,-0.14795801043510437f,0.12666010856628418f,0.2193526029586792f,0.2858560085296631f,-0.6543271541595459f,0.16494837403297424f,-0.35532402992248535f,-0.06058239936828613f,0.07391873747110367f,0.29227620363235474f},
{-0.349159836769104f,0.23408935964107513f,-0.28113874793052673f,-0.09636816382408142f,-0.3470844030380249f,0.09159677475690842f,-0.24872183799743652f,-0.3441091775894165f,-0.20228171348571777f,-0.3132234513759613f,-0.38526651263237f,-0.07960613816976547f,0.11759966611862183f,0.10377488285303116f,0.2513485848903656f,-0.263491153717041f},
{0.38546842336654663f,0.1190636157989502f,-0.05863933265209198f,-0.41764265298843384f,-0.4134422838687897f,-0.09244964271783829f,0.298126757144928f,-0.39963799715042114f,-0.06526103615760803f,0.03604122996330261f,-0.409576952457428f,0.09560509771108627f,-0.30289945006370544f,0.14713193476200104f,-0.0909358337521553f,0.1905267983675003f},
{-0.42283523082733154f,0.17752918601036072f,0.05169850215315819f,-0.14728012681007385f,-0.37331435084342957f,0.32072553038597107f,-0.09241300821304321f,-0.04799109697341919f,-0.17356249690055847f,-0.053030580282211304f,0.2975623309612274f,-0.12490103393793106f,-0.3399311900138855f,0.17119969427585602f,0.3467433452606201f,-0.32378605008125305f},
{0.2842629551887512f,0.14254522323608398f,-0.07260823994874954f,-0.1726883053779602f,-0.16769343614578247f,0.362951397895813f,-0.18842191994190216f,0.35883063077926636f,-0.32441917061805725f,0.3678022027015686f,0.19621485471725464f,0.4039776921272278f,-0.006959974765777588f,-0.07163886725902557f,0.17139792442321777f,-0.4028019607067108f},
{0.30670469999313354f,-0.07149137556552887f,-0.06005222350358963f,-0.24774791300296783f,0.2930166721343994f,0.0734730213880539f,-0.2875429093837738f,0.34532618522644043f,-0.07908278703689575f,0.264565646648407f,-0.24093548953533173f,-0.3791404664516449f,0.24430310726165771f,0.11721959710121155f,-0.20590196549892426f,-0.20737025141716003f},
{0.06869709491729736f,-0.28333309292793274f,-0.42365720868110657f,-0.3430131673812866f,-0.4249112606048584f,-0.367571085691452f,-0.2120281457901001f,-0.19189448654651642f,0.18253427743911743f,-0.026109665632247925f,0.29364481568336487f,-0.049624159932136536f,0.24209386110305786f,-0.28560784459114075f,0.2603754699230194f,-0.24946027994155884f},
};

const float h2[16][16] = {
    {-0.055980950593948364f,0.23325034976005554f,0.1310378611087799f,0.3538874685764313f,-0.3786364793777466f,0.3037426769733429f,-0.17743819952011108f,0.03198641538619995f,-0.25820767879486084f,-0.025972992181777954f,-0.1812897026538849f,-0.19700877368450165f,-0.23905162513256073f,0.3336930572986603f,-0.2611466646194458f,-0.14968061447143555f},
{0.6830940842628479f,0.3085605204105377f,-1.0774949789047241f,-0.63385409116745f,-0.9465451836585999f,-0.005713187158107758f,-1.1153970956802368f,-0.6576376557350159f,-0.18814027309417725f,0.2273702323436737f,-0.2186730057001114f,-0.09930881857872009f,0.3377574682235718f,-0.9058500528335571f,-0.21292872726917267f,0.6135957837104797f},
{-0.8244589567184448f,0.3188628852367401f,0.4108174741268158f,-0.4539192020893097f,-0.16654692590236664f,0.10132119059562683f,0.5420822501182556f,0.13426877558231354f,-0.1720905601978302f,0.229490727186203f,-0.29371505975723267f,-0.13699811697006226f,-0.28904634714126587f,0.337862104177475f,0.056768983602523804f,-0.5893235802650452f},
{-0.28563398122787476f,0.07789990305900574f,0.40358296036720276f,0.3720850646495819f,-0.03832319378852844f,-0.1494518518447876f,-0.11764177680015564f,0.34294649958610535f,0.054388612508773804f,0.3634087145328522f,0.1569826900959015f,0.28783395886421204f,-0.13846668601036072f,0.12138035893440247f,-0.3007376194000244f,0.12193700671195984f},
{0.1812863051891327f,0.25741907954216003f,-0.005224883556365967f,0.3340524137020111f,0.024127095937728882f,0.11559751629829407f,0.13140985369682312f,-0.02607312798500061f,0.060811251401901245f,0.1730591356754303f,0.4128219783306122f,0.03628826141357422f,-0.040624260902404785f,0.2442089021205902f,-0.39249828457832336f,-0.21546570956707f},
{0.30592480301856995f,-0.3289546072483063f,0.2873966097831726f,0.3854629099369049f,0.35946568846702576f,-0.36090072989463806f,0.3797028660774231f,-0.31257379055023193f,0.018147015944123268f,0.17989537119865417f,-0.191977858543396f,0.26149240136146545f,-0.5889873504638672f,0.4767233431339264f,-0.4196912348270416f,-0.6381170749664307f},
{0.03675055503845215f,-0.05131736397743225f,-0.2540779709815979f,-0.4151476323604584f,-0.3318796753883362f,0.2645241320133209f,0.06107431650161743f,-0.3474422097206116f,0.4012340009212494f,0.12852928042411804f,0.2119675576686859f,0.39421865344047546f,-0.14612942934036255f,0.4053405821323395f,-0.15860587358474731f,-0.00642770528793335f},
{-0.011466562747955322f,-0.293976753950119f,-0.2703247666358948f,0.13940533995628357f,-0.3086448609828949f,-0.10881850123405457f,-0.18203827738761902f,-0.3606947958469391f,0.05907437205314636f,0.17521318793296814f,0.16556969285011292f,-0.017545759677886963f,0.4063515365123749f,0.1637323796749115f,0.0436977744102478f,0.21962454915046692f},
{0.1453019678592682f,0.31070712208747864f,0.10406997799873352f,-0.34301185607910156f,-0.14203324913978577f,0.1393299400806427f,-0.07359349727630615f,-0.4255761206150055f,-0.24196511507034302f,0.4100019037723541f,-0.2432931661605835f,0.4171271026134491f,0.26163145899772644f,0.24838712811470032f,-0.31029027700424194f,0.24932292103767395f},
{-0.09909564256668091f,-0.22814129292964935f,0.18748918175697327f,-0.08129695057868958f,0.17022588849067688f,0.2918822467327118f,-0.3036908507347107f,-0.09228748083114624f,0.024910658597946167f,-0.4239048957824707f,0.050207048654556274f,-0.4021540582180023f,0.4068380892276764f,-0.20195016264915466f,0.35390153527259827f,0.03321918845176697f},
{0.27012309432029724f,0.11061021685600281f,-0.11031246930360794f,-0.2462926208972931f,-0.47244739532470703f,-0.11755365878343582f,-0.8120853900909424f,-0.5518144965171814f,-0.44141459465026855f,0.08167347311973572f,0.41236647963523865f,-0.19175507128238678f,0.17540761828422546f,-0.7689425349235535f,0.2710213363170624f,0.032591644674539566f},
{-0.34531110525131226f,-0.39544427394866943f,-0.40925148129463196f,0.07428228110074997f,0.16746854782104492f,-0.011973470449447632f,0.15573780238628387f,0.4095241129398346f,-0.11885038018226624f,0.2575679123401642f,-0.36203885078430176f,0.2510797083377838f,0.17548120021820068f,-0.001581403543241322f,0.10656675696372986f,-0.06930389255285263f},
{-0.01594102382659912f,-0.19719429314136505f,0.2015570104122162f,0.23486098647117615f,0.36742570996284485f,0.19432035088539124f,-0.24415965378284454f,0.16870906949043274f,-0.1409781575202942f,-0.15576940774917603f,-0.05214834213256836f,-0.16751256585121155f,0.12201771140098572f,0.031148135662078857f,-0.22613362967967987f,-0.3668502867221832f},
{-0.05743904411792755f,-0.10105487704277039f,0.37456682324409485f,-0.04381980374455452f,-0.24536658823490143f,-0.25192296504974365f,-0.2841794490814209f,-0.34860795736312866f,-0.12634605169296265f,-0.19223688542842865f,-0.13938084244728088f,-0.1388394832611084f,-0.24564625322818756f,-0.08797869831323624f,0.04871204495429993f,0.18949538469314575f},
{0.29601532220840454f,-0.008572280406951904f,0.4535497725009918f,0.3231527507305145f,0.7357798218727112f,-0.31015023589134216f,0.43387073278427124f,0.3858222961425781f,0.3131316900253296f,0.11613044142723083f,-0.22509463131427765f,-0.3847343325614929f,-0.512644350528717f,0.13419762253761292f,0.06784489750862122f,-0.3282114565372467f},
{-0.009295972064137459f,-0.35415053367614746f,-0.3785935640335083f,0.04678218811750412f,-0.05916179344058037f,0.028057783842086792f,-0.19932891428470612f,-0.004681884776800871f,0.27984046936035156f,0.021969109773635864f,-0.42253369092941284f,-0.02782580256462097f,-0.2832367718219757f,0.035722918808460236f,-0.08373728394508362f,0.2868802547454834f},
};

const float h3[16][16] = {
    {-0.011498991400003433f,-0.14559394121170044f,-0.06966331601142883f,-0.5719305872917175f,-0.21907491981983185f,0.7517984509468079f,0.6887433528900146f,0.0904630720615387f,-1.0889477729797363f,-0.28902721405029297f,-2.3065438270568848f,-0.10159772634506226f,0.23481115698814392f,-0.032193321734666824f,-0.060674071311950684f,0.22100424766540527f},
{0.11036357283592224f,-0.3038245439529419f,0.057057321071624756f,0.08777192234992981f,-0.35503754019737244f,-0.29007279872894287f,-0.33918139338493347f,-0.2990124225616455f,-0.33757925033569336f,0.2895788848400116f,-0.3337714970111847f,-0.37158891558647156f,0.33698758482933044f,0.16647490859031677f,-0.3480874300003052f,-0.2740727365016937f},
{-0.2946450114250183f,0.003037691116333008f,-0.061119019985198975f,0.4629787802696228f,0.05568113923072815f,-0.3591650128364563f,-0.3925563097000122f,-0.08465918898582458f,0.46576768159866333f,0.1319389045238495f,0.4200381338596344f,0.3004753887653351f,0.29665684700012207f,-0.5471781492233276f,0.08652284741401672f,-0.1951722800731659f},
{0.014514091424643993f,-0.38710832595825195f,-0.2894435524940491f,0.40405750274658203f,0.08946844935417175f,0.17319494485855103f,-0.3548906445503235f,0.4122363030910492f,0.28641819953918457f,0.18554691970348358f,0.14541564881801605f,0.4110986292362213f,-0.45408642292022705f,-0.2165788859128952f,0.27305224537849426f,-0.047836560755968094f},
{-0.2806110680103302f,0.40231046080589294f,-0.25313520431518555f,0.5885722637176514f,0.036378175020217896f,-0.22483457624912262f,-0.6083595752716064f,-0.08570799231529236f,0.30782198905944824f,-0.6609525084495544f,-0.08430586755275726f,-0.4229513108730316f,-0.23955631256103516f,-0.19798928499221802f,-0.2544192671775818f,-0.6755768060684204f},
{0.5131750702857971f,0.294185608625412f,-0.3519742488861084f,0.19928856194019318f,-0.3015052080154419f,-0.024108221754431725f,-0.23793454468250275f,-0.019414573907852173f,-0.42064279317855835f,0.5497127175331116f,-0.10041175037622452f,0.001658409833908081f,-0.023390205577015877f,0.3993215262889862f,0.15392538905143738f,-0.18064595758914948f},
{-0.2636679708957672f,-0.02554568648338318f,-0.3260969817638397f,1.400650143623352f,-0.38453540205955505f,-3.0441176891326904f,-1.0309864282608032f,0.12387624382972717f,1.327842354774475f,0.8234207034111023f,1.1026571989059448f,-0.32796353101730347f,-1.0295908451080322f,0.049302369356155396f,-0.27088475227355957f,-1.773733377456665f},
{0.15550771355628967f,0.33974209427833557f,0.33083590865135193f,0.21785464882850647f,-0.14358049631118774f,-1.6028454303741455f,-0.49285537004470825f,-0.3003333508968353f,0.8130767941474915f,-0.45922738313674927f,0.9424108266830444f,-0.2890920341014862f,-0.968544602394104f,0.36012205481529236f,0.048003822565078735f,-0.24998000264167786f},
{-0.25820738077163696f,0.35453304648399353f,-0.11379697918891907f,0.07942168414592743f,0.041274964809417725f,-0.33757007122039795f,-0.06726410984992981f,0.0019084513187408447f,0.024072596803307533f,-0.35254228115081787f,0.03284132853150368f,-0.3197441101074219f,-0.3433385193347931f,-0.30194157361984253f,-0.4068881571292877f,-0.1724976897239685f},
{-0.14576366543769836f,0.22098979353904724f,-0.13502129912376404f,0.1006976068019867f,0.12987366318702698f,0.11301741003990173f,0.2711336314678192f,-0.3632148504257202f,-0.13619378209114075f,0.16938945651054382f,0.24499371647834778f,0.39862415194511414f,0.3811538517475128f,-0.23332324624061584f,0.011877655982971191f,-0.23860150575637817f},
{-0.2709399461746216f,-0.006022721529006958f,0.0457797646522522f,-0.38090792298316956f,-0.03321319818496704f,-0.4148826003074646f,0.17873415350914001f,-0.20421427488327026f,-0.050184011459350586f,0.12480869889259338f,-0.20706263184547424f,0.3545852601528168f,-0.3647043704986572f,0.42127421498298645f,-0.39804020524024963f,-0.2870290279388428f},
{0.33538809418678284f,0.3494977056980133f,0.3954955041408539f,0.3170476257801056f,0.0033026933670043945f,0.3035760819911957f,-0.18492193520069122f,-0.11795541644096375f,0.3487861454486847f,-0.32520344853401184f,0.3952759802341461f,-0.15237495303153992f,0.0820283591747284f,-0.3793424367904663f,0.2430708110332489f,0.24988999962806702f},
{-0.37207356095314026f,-0.180922269821167f,-0.15798500180244446f,0.36838704347610474f,-0.37393757700920105f,0.44713646173477173f,0.025694025680422783f,-0.2947862446308136f,-0.39739224314689636f,0.1606505811214447f,-0.09350364655256271f,-0.2837170362472534f,0.4245411455631256f,-0.19196075201034546f,-0.15901821851730347f,0.014467512257397175f},
{-0.28947749733924866f,0.26506301760673523f,-0.2018718123435974f,0.5882180333137512f,0.07545611262321472f,-1.3561453819274902f,-0.4799374043941498f,-0.21416273713111877f,0.24524515867233276f,0.2077748328447342f,0.7775342464447021f,-0.25593626499176025f,-0.112045519053936f,0.27643296122550964f,-0.23556609451770782f,-0.41434746980667114f},
{0.4138670265674591f,0.1604653298854828f,0.056746453046798706f,0.036025404930114746f,0.3228367865085602f,-0.07083973288536072f,0.018455177545547485f,0.0059362053871154785f,0.40515169501304626f,0.014240056276321411f,-0.07738298177719116f,0.1407785713672638f,-0.13024571537971497f,-0.29546058177948f,-0.11976784467697144f,-0.35825538635253906f},
{-0.46387147903442383f,0.3827712833881378f,0.12081471085548401f,-0.26810991764068604f,0.29976895451545715f,0.5951269268989563f,-0.09479555487632751f,0.31089308857917786f,-0.5688030123710632f,-0.46812617778778076f,0.21434427797794342f,-0.11613789200782776f,-0.19970247149467468f,-0.02543884515762329f,0.22754064202308655f,0.0740114152431488f},
};

const float hout[16] = { -0.158200204372406f,-0.17660260200500488f,-0.05137401819229126f,-0.5410199761390686f,-0.20271384716033936f,0.35903048515319824f,0.3810136020183563f,0.4165375232696533f,-0.4397028386592865f,0.12780319154262543f,-0.3604712188243866f,0.5489715337753296f,0.19251443445682526f,0.3525826036930084f,-0.480579137802124f,0.23442186415195465f };

const float b1[16] = { -0.31192219257354736f,0.268393874168396f,1.7755248546600342f,-0.407010555267334f,-0.8632325530052185f,1.3653104305267334f,-0.8388656973838806f,-0.8200502991676331f,-0.2854437828063965f,-1.6282782554626465f,0.8953557014465332f,-0.12085551768541336f,-1.5856122970581055f,-0.6190592050552368f,0.3934020400047302f,-0.36230528354644775f };

const float b2[16] = { -0.40527141094207764f,-1.3118138313293457f,0.9577730298042297f,1.5444650650024414f,0.5990768074989319f,-0.10386185348033905f,0.4417823553085327f,0.181562602519989f,-0.16907061636447906f,-1.6486880779266357f,-0.22539173066616058f,-2.15936541557312f,1.5229467153549194f,0.11918190121650696f,-0.6625781655311584f,0.4921003580093384f };

const float b3[16] = { 0.6422635316848755f,-0.1894310712814331f,0.21861673891544342f,0.1256403774023056f,-0.4563063681125641f,-0.5133413076400757f,1.4254883527755737f,-0.7025120258331299f,0.6852500438690186f,-0.6245395541191101f,-0.17192035913467407f,-0.7519525289535522f,-0.22238163650035858f,0.17018213868141174f,-0.45795938372612f,1.070515513420105f };

const float bout[1] = { 0.5118825435638428f };

/////////////////////////////////////////////////////////////////////////////////////////////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;
int can_rest =0;

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

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

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


        int UTILITY_MODE = 0;
        int CONTROL_MODE = 0;

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



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

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

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

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

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

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

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

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

                    dac_1 = TORQUE_VREF / 3.3f;

                }
                TMR3_COUNT_TORQUE_NULL++;
                break;
            }

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

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

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

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

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

                        CONTROL_MODE = MODE_JOINT_CONTROL;
                        alpha_trans = 0.0f;


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


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


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

                    // input for position control

//                    CONTROL_MODE = MODE_JOINT_CONTROL;
                    alpha_trans = 0.0f;

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

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

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

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

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

                        I_REF = I_REF_POS;



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

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

                        VALVE_POS_CONTROL(valve_pos.ref);

                        V_out = (float) Vout.ref;

                    }




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

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

                break;
            }

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

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

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

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

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

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

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

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

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

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

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

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


                break;
            }

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

                break;
            }

            default:
                break;
        }

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

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

            case MODE_VALVE_POSITION_CONTROL: {
                if (OPERATING_MODE == 5) { //SW Valve
                    VALVE_POS_CONTROL(valve_pos.ref);
                    V_out = Vout.ref;
                } else if (CURRENT_CONTROL_MODE == 0) { //PWM
                    V_out = valve_pos.ref;
                } else {
                    I_REF = valve_pos.ref * 0.001f;
                }
                break;
            }

            case MODE_JOINT_CONTROL: {

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

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

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

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

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

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

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

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

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

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

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

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

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

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

                float torq_ref_dot = torq.ref_diff * 500.0f;

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

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

                float k3 = 2000.0f; //2000  //20000
                float k4 = 10.0f;
                float rho3 = 3.2f;
                float rho4 = 10000000.0f;  //25000000.0f;
                float x_4_des = (-f3 + torq_ref_dot - k3*(-torq.err))/(gamma_hat*g3_prime);
                if (x_4_des > 1) x_4_des = 1;
                else if (x_4_des < -1) x_4_des = -1;

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

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

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

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

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

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

                    RL_timer++;


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

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

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

                    logging3 = virt_pos;
                }

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

                break;
            }

            default:
                break;
        }


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

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

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


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

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

                double FF_gain = 1.0f;

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

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

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

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

            } else {
                VALVE_PWM_VALVE_DZ = VALVE_PWM_RAW;
            }

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

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

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

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

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

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

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

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

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

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


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

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


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


                CAN_TX_PRES((int16_t) (t_value), (int16_t) (t_value_ref)); // 1400
            }

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

            if (flag_data_request[3] == HIGH) {
                //PWM
                CAN_TX_PWM((int16_t) (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) gamma_hat, (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

}