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Dependencies:   mbed FastPWM

main.cpp

Committer:
Lightvalve
Date:
2021-01-06
Revision:
243:6d81340c0e7b
Parent:
242:3a69403240a1
Child:
244:b8e9935406dd

File content as of revision 243:6d81340c0e7b:

//210106_1  500Hz   num_input 15    210105 data
#include "mbed.h"
#include "FastPWM.h"
#include "INIT_HW.h"
#include "function_CAN.h"
#include "SPI_EEP_ENC.h"
#include "I2C_AS5510.h"
#include "setting.h"
#include "function_utilities.h"
#include "stm32f4xx_flash.h"
#include "FlashWriter.h"
#include <string>
#include <iostream>
#include <cmath>

using namespace std;
Timer t;

///191008////

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


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

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

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

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

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

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

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

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

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




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

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

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

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

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

    MODE_TEST_CURRENT_CONTROL,                          //9
    MODE_TEST_PWM_CONTROL,                              //10

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

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

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

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

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

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

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

float input_NN[num_input] = { 0.0f };

const float h1[num_input][16] = {
    {0.2426416575908661f,0.22019553184509277f,0.038638919591903687f,-0.28833115100860596f,-0.4155330955982208f,-0.960847795009613f,-0.3490819036960602f,0.2376738041639328f,-1.2533519268035889f,-0.7306710481643677f,0.1127660945057869f,-0.3129321336746216f,-0.2836083769798279f,0.19339388608932495f,-0.8082801699638367f,0.34967198967933655f},
{-0.07984253764152527f,0.09767907857894897f,0.3645952343940735f,0.1650388091802597f,0.07446616888046265f,-0.7925461530685425f,0.0668189525604248f,-0.01147061213850975f,-1.579444408416748f,-0.9638774394989014f,-0.3736152648925781f,-0.3686029016971588f,0.0033982396125793457f,0.1531161069869995f,-0.18784570693969727f,0.48837071657180786f},
{-0.3338775038719177f,-0.29248523712158203f,-0.2509925961494446f,-0.3766935467720032f,-0.3347198963165283f,0.036577265709638596f,0.24376332759857178f,-0.2340160608291626f,-1.0122079849243164f,-1.0218331813812256f,-0.3462825417518616f,-0.22461646795272827f,0.1697424054145813f,0.22269046306610107f,-0.192513108253479f,-0.009906439110636711f},
{-0.3513132333755493f,-0.18979313969612122f,-0.2564713954925537f,-0.21181565523147583f,-0.2106361836194992f,-0.08378063142299652f,-0.07833871245384216f,-0.02431868016719818f,-1.188582420349121f,-0.6215116381645203f,0.021388443186879158f,-0.39923545718193054f,0.19414609670639038f,-0.12889650464057922f,-0.41929519176483154f,0.27035394310951233f},
{0.06266215443611145f,0.2985467314720154f,0.046925246715545654f,0.18890655040740967f,0.29851990938186646f,0.701492965221405f,-0.07447770237922668f,-0.33272838592529297f,-0.5406572222709656f,-1.1020270586013794f,0.22954575717449188f,0.05665591359138489f,-0.40332701802253723f,0.0021306276321411133f,0.080314502120018f,0.4345391094684601f},
{-0.2102268636226654f,0.02471265196800232f,0.22019988298416138f,-0.06193647161126137f,-0.052234798669815063f,2.348221778869629f,0.10219252109527588f,-0.22582420706748962f,1.3845769166946411f,-1.4575117826461792f,0.0620768666267395f,0.4100075960159302f,-0.06651851534843445f,0.29486584663391113f,0.9575929045677185f,0.1818041205406189f},
{-0.4468589127063751f,0.3260995149612427f,-0.33198100328445435f,0.009572708979249f,0.0969235897064209f,-3.793297529220581f,-0.07328951358795166f,-0.23523281514644623f,-2.1146247386932373f,2.514740467071533f,-0.4058745801448822f,0.00765615701675415f,0.108481764793396f,0.28416818380355835f,-1.9866564273834229f,-0.019559336826205254f},
{-0.23531727492809296f,0.2122827172279358f,0.4228256940841675f,-0.19730143249034882f,-0.20334431529045105f,-1.6415754556655884f,-0.0006155073642730713f,-0.34953469038009644f,-0.325231671333313f,1.1337085962295532f,0.27176281809806824f,-0.1596420407295227f,0.3124876022338867f,-0.28742849826812744f,-0.8363202214241028f,-0.6913115978240967f},
{0.14252673089504242f,0.0664520263671875f,-0.19457413256168365f,0.08777939528226852f,-0.09620559215545654f,0.4614688456058502f,-0.22167514264583588f,-0.04054870828986168f,1.0724784135818481f,0.4265463054180145f,0.37987539172172546f,0.0689961314201355f,-0.22933652997016907f,-0.0423736572265625f,0.510279655456543f,-0.45125341415405273f},
{-0.11359938979148865f,0.4010307788848877f,-0.01456400752067566f,0.3892665505409241f,-0.3213164210319519f,1.355391025543213f,-0.24218180775642395f,0.21883025765419006f,1.2824559211730957f,-0.2841576337814331f,0.18143600225448608f,-0.19942331314086914f,0.4178558588027954f,-0.20797522366046906f,0.7563133239746094f,-0.12107682973146439f},
{-0.331044465303421f,-0.006712973117828369f,0.03854483366012573f,0.13394321501255035f,0.06208515167236328f,0.9263473749160767f,-0.3259813189506531f,0.2382330745458603f,0.5789619088172913f,-0.4901904761791229f,-0.3500886857509613f,-0.31929516792297363f,-0.3779717981815338f,0.16420477628707886f,0.2852707803249359f,-0.6164341568946838f},
{-0.16066770255565643f,-0.3333130180835724f,0.2740911841392517f,0.37836918234825134f,0.3958861231803894f,0.5620597004890442f,0.18537968397140503f,-0.4073611795902252f,0.5831527709960938f,-0.37470921874046326f,0.17797312140464783f,-0.15844795107841492f,-0.32350653409957886f,-0.1762060821056366f,0.009823855012655258f,-0.07518953830003738f},
{0.3657006323337555f,0.3073391914367676f,0.0892636775970459f,0.279962420463562f,0.008891016244888306f,-0.38006922602653503f,0.0382058322429657f,0.191907599568367f,-0.05170278623700142f,0.1677311658859253f,-0.26207825541496277f,0.37108880281448364f,0.23616182804107666f,0.08562582731246948f,-0.38843291997909546f,-0.12969523668289185f},
{0.06360382586717606f,-0.09081444144248962f,-0.03350529074668884f,-0.12857523560523987f,0.0944976806640625f,-0.07858990877866745f,0.2443365454673767f,-0.2210107147693634f,-0.12345795333385468f,0.047801438719034195f,-0.08474106341600418f,0.161712646484375f,0.0126628577709198f,0.2548195719718933f,-0.6583581566810608f,0.11489982157945633f},
{-0.36465221643447876f,-0.13231772184371948f,-0.09768560528755188f,-0.08476009964942932f,-0.03454515337944031f,1.2674325704574585f,-0.39151039719581604f,0.2588794231414795f,0.9131219983100891f,-0.7167741060256958f,0.07405008375644684f,-0.19501163065433502f,0.3044053912162781f,0.0006307065486907959f,0.3604453206062317f,-0.3740781545639038f},
};

const float h2[16][16] = {
    {-0.3209214508533478f,0.19527314603328705f,0.3692755401134491f,-0.3171718120574951f,0.2862485945224762f,-0.18180909752845764f,-0.3276335597038269f,0.3442974388599396f,0.4148279130458832f,0.13026955723762512f,-0.27791929244995117f,0.13183942437171936f,0.31752148270606995f,-0.01397278904914856f,-0.0944136455655098f,-0.21188922226428986f},
{0.11377331614494324f,-0.37852466106414795f,0.2370569407939911f,0.16720417141914368f,-0.3181529939174652f,-0.3957885801792145f,0.32069316506385803f,0.04377034306526184f,-0.22974573075771332f,0.39766010642051697f,-0.1368245780467987f,-0.002077043056488037f,0.17663273215293884f,0.3637915551662445f,-0.36169126629829407f,-0.006708413362503052f},
{0.24961581826210022f,-0.3979327380657196f,0.33400359749794006f,-0.11577510833740234f,0.33888837695121765f,0.0025358498096466064f,0.37566879391670227f,0.11383256316184998f,0.35913869738578796f,-0.13233742117881775f,0.28255733847618103f,-0.014687597751617432f,0.16028288006782532f,0.42115524411201477f,-0.03804278373718262f,0.11670640110969543f},
{-0.2843952178955078f,-0.10674364864826202f,-0.05828779935836792f,-0.02550429105758667f,-0.3856094479560852f,0.27161744236946106f,0.045299604535102844f,0.046430811285972595f,-0.10409536957740784f,-0.30188295245170593f,0.3404492437839508f,-0.2792280316352844f,0.09299281239509583f,-0.10469070076942444f,0.20082040131092072f,-0.02582683600485325f},
{0.2572067677974701f,0.2781001627445221f,-0.405854731798172f,0.08892467617988586f,-0.2709423303604126f,0.42682674527168274f,0.3209557831287384f,-0.2756153345108032f,0.02407899498939514f,0.1756146252155304f,-0.389127254486084f,-0.25448572635650635f,-0.055950284004211426f,-0.31929004192352295f,-0.3446109890937805f,-0.09691348671913147f},
{-0.5382754802703857f,0.5980117321014404f,-0.19337564706802368f,-0.3505755066871643f,1.5076755285263062f,-0.04760316014289856f,-0.5956137180328369f,0.19445766508579254f,-0.17806154489517212f,-0.34891924262046814f,-0.6709976196289062f,-0.22476613521575928f,0.06374580413103104f,-1.9985495805740356f,-0.06912603974342346f,-0.4410947263240814f},
{0.1925239861011505f,0.40739431977272034f,0.1585346758365631f,0.012531578540802002f,0.14677610993385315f,0.42920753359794617f,-0.19571323692798615f,0.032037198543548584f,0.033829838037490845f,0.24610736966133118f,-0.02325493097305298f,0.08909699320793152f,0.3699655830860138f,-0.41911548376083374f,-0.3083699345588684f,0.21693852543830872f},
{0.38889628648757935f,0.38968878984451294f,0.32160642743110657f,0.35630056262016296f,0.19406259059906006f,0.1516251266002655f,0.24212874472141266f,-0.13637618720531464f,0.3431205451488495f,-0.30215632915496826f,0.017935140058398247f,-0.03461197018623352f,0.0800233781337738f,-0.34450042247772217f,-0.3156430423259735f,-0.04929089546203613f},
{-1.2690575122833252f,-0.41922739148139954f,0.24376170337200165f,0.10074576735496521f,0.8972052335739136f,-0.2767525911331177f,-1.8646751642227173f,-0.13671892881393433f,-0.0860334038734436f,0.1431577503681183f,0.4211086332798004f,-0.055606722831726074f,-0.14299863576889038f,-3.725269317626953f,0.13963326811790466f,-0.44991829991340637f},
{-4.11514949798584f,2.633051872253418f,-0.4318431615829468f,-0.2701643407344818f,-0.7951452732086182f,0.09257593750953674f,1.1297763586044312f,0.17555080354213715f,-0.3864961266517639f,-0.03208726644515991f,1.5047467947006226f,-0.19104014337062836f,-0.23518845438957214f,-7.868664264678955f,-0.2569129765033722f,-0.44006308913230896f},
{-0.0851685181260109f,-0.34350937604904175f,-0.32197198271751404f,0.2524145543575287f,0.11789050698280334f,-0.26150304079055786f,-0.15249848365783691f,-0.3123277723789215f,0.24206027388572693f,-0.25659048557281494f,0.4623681902885437f,0.11264470219612122f,-0.40188872814178467f,0.38653984665870667f,-0.0858321413397789f,0.3462865352630615f},
{-0.24864348769187927f,-0.4162408113479614f,-0.3195984363555908f,-0.2512216567993164f,-0.3248611092567444f,-0.17238903045654297f,0.3525576889514923f,-0.23431308567523956f,0.3898591101169586f,-0.1842145472764969f,0.11759284138679504f,-0.018693149089813232f,0.2922026216983795f,-0.17276078462600708f,0.20373579859733582f,0.3641580045223236f},
{-0.03393596410751343f,0.14770111441612244f,0.1157466471195221f,-0.014048665761947632f,0.30773255228996277f,0.23077449202537537f,-0.1857042759656906f,0.257400244474411f,0.062189072370529175f,-0.19969730079174042f,0.08790925145149231f,0.09972622990608215f,-0.2305293083190918f,-0.35955360531806946f,-0.2718116044998169f,0.08828327059745789f},
{0.2866610586643219f,0.324022501707077f,0.36930540204048157f,0.021187901496887207f,0.18721124529838562f,-0.07024207711219788f,0.07090321183204651f,0.40661314129829407f,-0.18637192249298096f,0.08040741086006165f,0.05410262942314148f,0.18253520131111145f,-0.2780979871749878f,0.3454895317554474f,0.27210715413093567f,-0.04567694664001465f},
{0.03838261216878891f,-0.5079368948936462f,0.10112041980028152f,0.18659386038780212f,0.6963626146316528f,0.12154439091682434f,-0.17538641393184662f,0.35791733860969543f,0.34097281098365784f,0.03882822394371033f,-1.3008806705474854f,-0.34781014919281006f,-0.14935171604156494f,-0.5407885909080505f,-0.5507271885871887f,-0.20391324162483215f},
{0.37272968888282776f,-0.08322299271821976f,-0.2641978859901428f,-0.21258875727653503f,-0.5285504460334778f,0.2307353913784027f,-0.6646787524223328f,-0.06878728419542313f,0.4003201425075531f,0.37593039870262146f,-0.32459190487861633f,0.08050385117530823f,-0.12626805901527405f,0.696220338344574f,0.1509009301662445f,0.2698350250720978f},
};

const float h3[16][16] = {
    {-0.906178891658783f,0.7276226878166199f,0.16640469431877136f,-1.074025273323059f,0.35986682772636414f,0.07510380446910858f,-0.13449186086654663f,-1.567118763923645f,1.4718551635742188f,-1.3957968950271606f,-0.5369729995727539f,-0.35629796981811523f,-1.025177001953125f,-0.3967982232570648f,-1.2568471431732178f,0.42272046208381653f},
{-1.7840583324432373f,-0.7951673865318298f,0.08712630718946457f,-0.49513906240463257f,0.22527280449867249f,-0.933793842792511f,-0.2128937840461731f,-1.6850707530975342f,-2.405503511428833f,2.103959083557129f,-0.6362944841384888f,-0.10680044442415237f,1.0738216638565063f,-0.5063754916191101f,-2.1546857357025146f,0.07512295991182327f},
{0.004108738619834185f,-0.274260014295578f,-0.35367295145988464f,-0.23111958801746368f,-0.013286978006362915f,-0.35976120829582214f,0.20723947882652283f,-0.22688564658164978f,-0.3933952748775482f,-0.2469865083694458f,-0.10184195637702942f,-0.036791570484638214f,-0.20333541929721832f,-0.1474355161190033f,0.30211755633354187f,0.029817909002304077f},
{-0.24431058764457703f,-0.17455258965492249f,0.09072163701057434f,0.36838439106941223f,0.1518034040927887f,-0.2244877964258194f,-0.3773283362388611f,-0.4137502908706665f,-0.43285298347473145f,0.21767470240592957f,0.3199503719806671f,0.18974873423576355f,-0.2736336588859558f,-0.26345178484916687f,0.2594381868839264f,-0.3755319118499756f},
{-1.0546468496322632f,-1.879543662071228f,-0.3896068036556244f,-2.326030731201172f,-0.29278600215911865f,-1.6855119466781616f,-0.7656766176223755f,-1.3112117052078247f,-0.3009236454963684f,-0.1608448326587677f,-0.48595014214515686f,-2.58016037940979f,0.7338660955429077f,-0.02715977653861046f,-1.0012117624282837f,-0.29054537415504456f},
{-0.35896390676498413f,0.1519547402858734f,-0.1918996125459671f,0.3441784083843231f,-0.251690149307251f,0.07633808255195618f,-0.20442241430282593f,0.15600016713142395f,-0.34061896800994873f,-0.42899268865585327f,0.24141374230384827f,-0.0907757580280304f,-0.2614765167236328f,-0.26180750131607056f,-0.16899681091308594f,0.3768171966075897f},
{-0.880810558795929f,-3.1539807319641113f,-0.0410144068300724f,-1.0675164461135864f,-0.42980632185935974f,-2.771942377090454f,-1.2194820642471313f,-1.6178263425827026f,-0.4983506500720978f,1.2420903444290161f,-0.737767219543457f,-0.6286841034889221f,1.0471004247665405f,-0.04755221679806709f,0.06619733572006226f,-0.07779356092214584f},
{-0.31270870566368103f,-0.3115420639514923f,-0.4113859236240387f,0.36236318945884705f,0.18753167986869812f,0.2137911319732666f,0.13785728812217712f,-0.4067135453224182f,-0.3037393391132355f,0.015455139800906181f,-0.12907131016254425f,-0.039838116616010666f,0.2778095304965973f,0.13849052786827087f,-0.38960275053977966f,0.10178551077842712f},
{-0.38132068514823914f,0.350312739610672f,0.236850768327713f,-0.33636629581451416f,-0.0563720166683197f,-0.34556347131729126f,-0.16514313220977783f,-0.4196615219116211f,-0.06099119782447815f,0.363854318857193f,-0.09745600819587708f,-0.16400223970413208f,0.027912020683288574f,0.313402384519577f,0.2799864113330841f,0.07999011874198914f},
{-0.13869988918304443f,0.38950952887535095f,-0.11942046880722046f,-0.013615667819976807f,0.10183486342430115f,-0.14478465914726257f,-0.055372774600982666f,0.40451738238334656f,-0.0004988610744476318f,-0.15372157096862793f,0.39738205075263977f,-0.34888216853141785f,-0.22685009241104126f,0.05806469917297363f,-0.3431790769100189f,-0.055206865072250366f},
{-0.5467628240585327f,-0.3657051622867584f,-0.0928201973438263f,0.7215098738670349f,-0.3938039243221283f,0.05579270049929619f,-0.297423392534256f,0.8841676712036133f,-0.9665785431861877f,0.27645450830459595f,-0.6296942830085754f,0.10412584990262985f,2.061190128326416f,-0.019191347062587738f,-1.101051688194275f,-0.24198441207408905f},
{-0.3683733642101288f,-0.21325372159481049f,0.32993969321250916f,0.12162211537361145f,-0.1353546679019928f,-0.04242327809333801f,-0.429615318775177f,0.3358100354671478f,-0.1642657220363617f,-0.16881853342056274f,-0.3577517867088318f,0.2842075526714325f,0.1058095395565033f,0.03193211555480957f,-0.333587110042572f,-0.41875848174095154f},
{-0.11944586038589478f,-0.016977638006210327f,-0.14040663838386536f,-0.18402284383773804f,-0.2888585329055786f,0.40755733847618103f,-0.2704409062862396f,0.2084963023662567f,0.2528785169124603f,0.3035930395126343f,0.011118561029434204f,-0.08494043350219727f,0.22720195353031158f,0.1980362832546234f,-0.09844750165939331f,-0.24369663000106812f},
{0.19465525448322296f,0.5287004709243774f,-0.026385754346847534f,-0.572474479675293f,-0.06544613838195801f,0.8353392481803894f,0.584827184677124f,1.4129278659820557f,1.652499794960022f,-0.1460738629102707f,0.5699149966239929f,1.4096914529800415f,-0.9528071880340576f,0.28018197417259216f,-0.35613492131233215f,-0.08374109864234924f},
{0.15651622414588928f,-0.05297498032450676f,-0.395809531211853f,-0.22493095695972443f,0.2059049904346466f,-0.3899354040622711f,-0.15729941427707672f,0.07761989533901215f,0.2827228307723999f,-0.48621320724487305f,-0.3187112510204315f,-0.16275028884410858f,-0.10706552118062973f,-0.3818236291408539f,-0.19069123268127441f,-0.16918760538101196f},
{-0.13212862610816956f,0.2126924842596054f,0.20607492327690125f,0.31541842222213745f,0.30361661314964294f,-0.3614303171634674f,-0.036482229828834534f,-0.49492666125297546f,-0.3344106078147888f,0.3821418583393097f,0.09035366028547287f,0.0399528406560421f,0.27372878789901733f,-0.29966023564338684f,0.10072603076696396f,-0.17085057497024536f},
};

const float hout[16] = { 0.028529714792966843f,0.249660462141037f,0.05429621413350105f,0.13649047911167145f,0.21182763576507568f,1.8589720726013184f,1.9251549243927002f,0.9950587153434753f,1.9887455701828003f,-1.162423014640808f,-0.023119617253541946f,0.13996505737304688f,1.009389877319336f,-0.1522718071937561f,2.308634042739868f,0.1380276083946228f };

const float b1[16] = { 0.44875094294548035f,-1.0360865592956543f,-1.1075365543365479f,-0.3995904326438904f,-0.3227563202381134f,1.0322879552841187f,-0.39429977536201477f,0.11284410208463669f,3.0705134868621826f,4.676753044128418f,-0.18211516737937927f,-0.31427258253097534f,-2.6619958877563477f,-1.9939937591552734f,0.8003115057945251f,-0.6729674935340881f };

const float b2[16] = { -0.11054568737745285f,-0.11000818014144897f,-0.8041005730628967f,-0.7400949597358704f,0.4239952564239502f,-1.4137567281723022f,0.9374799132347107f,-1.5409705638885498f,-0.9115832448005676f,-1.1571590900421143f,0.5601513385772705f,-0.20241180062294006f,-0.4464137554168701f,0.4011272192001343f,-0.314651757478714f,-0.115329310297966f };

const float b3[16] = { 0.4329838752746582f,0.5600898861885071f,-0.8156418800354004f,-0.868074357509613f,-2.275556802749634f,0.5312483906745911f,-0.6398064494132996f,0.4554269015789032f,1.816382884979248f,-0.6808826923370361f,-0.05475400388240814f,-1.62785005569458f,-1.4683955907821655f,-1.0120080709457397f,1.087712287902832f,-0.919655442237854f };

const float bout[1] = { 0.7085913419723511f };

float valve_ref_pos_buffer[10] = {0.0f};

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

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

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

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

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

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

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

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


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

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

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


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

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

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

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

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

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


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

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

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

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


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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

                d_x_d_ba3 = 1.0f;
                d_y_d_ba3 = 1.0f;

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

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

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

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

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

float mean_adv(float x[], int size)
{
    float add = 0.0f;
    float result;

    for (int i=0; i<size; i++) {
        add += x[i];
    }
    result = (float) add/size;
    return result;
}
float deviation_adv(float x[], int size)
{
    float sigma = 0.0f;
    float resultDeb = 0.0f;

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


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


int main()
{

    HAL_Init();
    SystemClock_Config();

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

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

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

    //rom
    ROM_CALL_DATA();
    make_delay();

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

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

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

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

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

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

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

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

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

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

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

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

    Overwirte_Critic_Networks();
    Overwirte_Actor_Networks();

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

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


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

        //timer_while ++;

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

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

        else if(NN_Control_Flag == 1) {

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

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

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

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

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

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

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

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

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

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

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


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

        }


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

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


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

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

        }
    }
}

float DDV_JOINT_POS_FF(float REF_JOINT_VEL)
{

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

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

}


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

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

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

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

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

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

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

    return PWM_duty;
}





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

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

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

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

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


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


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

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

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


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

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


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

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

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

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


        int UTILITY_MODE = 0;
        int CONTROL_MODE = 0;

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



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

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

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

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

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

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

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

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

                    dac_1 = TORQUE_VREF / 3.3f;

                }
                TMR3_COUNT_TORQUE_NULL++;
                break;
            }

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

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

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

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

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

                        CONTROL_MODE = MODE_JOINT_CONTROL;
                        alpha_trans = 0.0f;


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


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


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

                    // input for position control

//                    CONTROL_MODE = MODE_JOINT_CONTROL;
                    alpha_trans = 0.0f;

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

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

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

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

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

                        I_REF = I_REF_POS;



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

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

                        VALVE_POS_CONTROL(valve_pos.ref);

                        V_out = (float) Vout.ref;

                    }




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

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

                break;
            }

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

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

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

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

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

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

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

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

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

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

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

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


                break;
            }

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

                break;
            }

            default:
                break;
        }

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

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

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

            case MODE_JOINT_CONTROL: {

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

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

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

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

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

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

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

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

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

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

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

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

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

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

                    VALVE_POS_RAW = VALVE_POS_RAW_FORCE_FB + VALVE_POS_RAW_FORCE_FF;


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

                    if(I_GAIN_JOINT_TORQUE != 0) {
                        double Ka = 2.0f / (double) I_GAIN_JOINT_TORQUE * 100.0f;
                        if(valve_pos.ref>VALVE_MAX_POS) {
                            double valve_pos_rem = valve_pos.ref - VALVE_MAX_POS;
                            valve_pos_rem = valve_pos_rem * Ka;
                            valve_pos.ref = VALVE_MAX_POS;
                            torq.err_sum = torq.err_sum - valve_pos_rem/(float) TMR_FREQ_5k;
                        } else if(valve_pos.ref < VALVE_MIN_POS) {
                            double valve_pos_rem = valve_pos.ref - VALVE_MIN_POS;
                            valve_pos_rem = valve_pos_rem * Ka;
                            valve_pos.ref = VALVE_MIN_POS;
                            torq.err_sum = torq.err_sum - valve_pos_rem/(float) TMR_FREQ_5k;
                        }
                    }

                    VALVE_POS_CONTROL(valve_pos.ref);

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

                }

                torq_ref_past = torq_ref;


                break;
            }

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

            case MODE_JOINT_ADAPTIVE_BACKSTEPPING: {


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

                V_adapt = 1.0f / (1.0f/Va + 1.0f/Vb); //initial 0.0000053f

                //float f3 = -Amm*Amm*beta*0.000001f*0.000001f/V_adapt * vel.sen/(float)(ENC_PULSE_PER_POSITION)*0.001f; // unit : N/s    //xdot=10mm/s일때 -137076
                float f3_hat = -a_hat * vel.sen/(float)(ENC_PULSE_PER_POSITION)*0.001f; // unit : N/s    //xdot=10mm/s일때 -137076

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

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

                float torq_ref_dot = torq.ref_diff * 500.0f;

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

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

                float k3 = 2000.0f; //2000  //20000
                float k4 = 10.0f;
                float rho3 = 3.2f;
                float rho4 = 10000000.0f;  //25000000.0f;
                float x_4_des = (-f3_hat + torq_ref_dot - k3*(-torq.err))/(gamma_hat*g3_prime);
                if (x_4_des > 1) x_4_des = 1;
                else if (x_4_des < -1) x_4_des = -1;

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

                float x_4_des_dot = (x_4_des - x_4_des_old)*(float) TMR_FREQ_5k;
                x_4_des_old = x_4_des;
                float V_input = 0.0f;
                V_out = (-f4 + x_4_des_dot - k4*(x_v-x_4_des)- rho3/rho4*gamma_hat*g3_prime*(-torq.err))/g4;
//                //V_out LPF
//                float alpha_V_out = 1.0f/(1.0f + 5000.0f/(2.0f*3.14f*50.0f)); // f_cutoff : 50Hz
//                V_out = V_out*(1.0f-alpha_V_out)+V_input*(alpha_V_out);

//                float rho_gamma = 5000.0f;//5000 for change //50000 for not change
//                float gamma_hat_dot = rho3*(-torq.err)/rho_gamma*((-f3+torq_ref_dot-k3*(-torq.err))/gamma_hat + g3_prime*(x_v-x_4_des));
//                gamma_hat = gamma_hat + gamma_hat_dot / (float) TMR_FREQ_5k;
//
//                if(gamma_hat > 10000.0f) gamma_hat = 10000.0f;
//                else if(gamma_hat < 100.0f) gamma_hat = 100.0f;

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

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

                break;
            }

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

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

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

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

                    RL_timer++;


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

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

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

                    logging3 = virt_pos;
                }

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

                break;
            }

            default:
                break;
        }


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

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

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


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

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

                double FF_gain = 1.0f;

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

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

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

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

            } else {
                VALVE_PWM_VALVE_DZ = VALVE_PWM_RAW;
            }

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

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

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

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

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

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

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

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

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

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



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

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


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


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

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

            if (flag_data_request[3] == HIGH) {
                //PWM
                CAN_TX_PWM((int16_t) (torq.ref)); //1500
//                CAN_TX_PWM((int16_t) (f_future[1])); //1500
            }

            if (flag_data_request[4] == HIGH) {
                //valve position
                //CAN_TX_VALVE_POSITION((int16_t) pos.sen/(float)(ENC_PULSE_PER_POSITION), (int16_t) virt_pos, (int16_t) (logging2*1000.0f), (int16_t) (logging4*1000.0f)); //1600
                CAN_TX_VALVE_POSITION((int16_t) (a_hat*0.0001f), (int16_t) 0, (int16_t) 0, (int16_t) 0); //1600
            }
       


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

            TMR2_COUNT_CAN_TX = 0;
        }
        TMR2_COUNT_CAN_TX++;
        
*/
      
    }
    TIM3->SR = 0x0;  // reset the status register

}