20210203

Dependencies:   mbed FastPWM

main.cpp

Committer:
Lightvalve
Date:
2020-06-08
Revision:
73:f80dc3970c99
Parent:
72:3436ce769b1e
Child:
74:2bd13b02ed17

File content as of revision 73:f80dc3970c99:

//200522-1
#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"      

using namespace std;
Timer t;

///191008////

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


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

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

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

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

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

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

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

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

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




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

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

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

    MODE_VALVE_OPEN_LOOP,                               //3
    MODE_JOINT_POSITION_TORQUE_CONTROL_VALVE_POSITION,  //4
    MODE_VALVE_POSITION_TORQUE_CONTROL_LEARNING,        //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

    //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
};

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 x_past[num_array_x_past] = {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][32] = { 
   {-1.5316121578216553f,1.046117901802063f,0.10087299346923828f,-0.5920249819755554f,0.006000066641718149f,-0.06292402744293213f,-0.7302544713020325f,1.2003053426742554f,-0.22492285072803497f,-1.0005651712417603f,-0.19194258749485016f,0.6088903546333313f,-0.18402203917503357f,0.22412745654582977f,-0.20103082060813904f,-0.7672873735427856f,0.6400743722915649f,0.23753002285957336f,-0.3429633677005768f,1.2256020307540894f,-0.3417735695838928f,0.1018887460231781f,-0.31691664457321167f,-0.07546886801719666f,0.6211225390434265f,0.1750296652317047f,-0.16833457350730896f,-0.7552083134651184f,0.3320983946323395f,-0.17902883887290955f,-2.2890756130218506f,0.07611003518104553f},
{-1.4611567258834839f,1.0853360891342163f,0.2844829857349396f,-0.9236651062965393f,0.051900915801525116f,-0.05538089573383331f,-0.17226804792881012f,0.9712872505187988f,-0.1281311810016632f,-0.7099795341491699f,-0.27849888801574707f,0.6594517230987549f,0.020206838846206665f,0.1498834639787674f,0.04370078444480896f,-0.5641506910324097f,0.3744271993637085f,0.059967368841171265f,0.2747458517551422f,1.2454235553741455f,-0.05271541327238083f,-0.11504809558391571f,-0.0905606746673584f,0.2640003263950348f,0.4686833620071411f,0.2797521650791168f,0.12084531784057617f,-0.20431983470916748f,-0.07909221202135086f,0.09343862533569336f,-1.144808292388916f,0.09386715292930603f},
{-0.6785809397697449f,0.8657543659210205f,-0.004022121429443359f,-0.1997077912092209f,0.011013412848114967f,-0.1420801728963852f,-0.08535565435886383f,0.5210550427436829f,0.020213676616549492f,-0.5929723978042603f,0.26537173986434937f,0.6844944357872009f,-0.031272560358047485f,0.16001033782958984f,-0.3021453320980072f,-0.3262001574039459f,0.6271952390670776f,-0.25322937965393066f,0.13424378633499146f,0.9074867367744446f,0.18754218518733978f,-0.14585837721824646f,0.1290973722934723f,-0.23490183055400848f,0.22646471858024597f,0.13848352432250977f,-0.14778463542461395f,0.04744651913642883f,-0.2646981477737427f,0.28840622305870056f,-0.05210360512137413f,-0.18625950813293457f},
{-0.14816814661026f,0.1484924852848053f,-0.19558930397033691f,-0.4587199091911316f,-0.4259108603000641f,-0.003024315694347024f,0.09867669641971588f,-0.2979104220867157f,0.2820493280887604f,-0.2173389047384262f,0.1107335165143013f,0.5747724771499634f,-0.11249050498008728f,0.28691187500953674f,-0.12209486961364746f,-0.00012021820293739438f,-0.0060715447179973125f,-0.22630342841148376f,-0.2441006749868393f,0.13262957334518433f,-0.26148006319999695f,-0.08376853168010712f,-0.14013314247131348f,-0.277662992477417f,-0.09883667528629303f,0.1348792016506195f,0.12745562195777893f,0.13001176714897156f,0.13773585855960846f,0.1260412633419037f,1.1402820348739624f,0.16906705498695374f},
{0.9182100892066956f,-0.531394898891449f,0.08011308312416077f,0.04475727304816246f,-0.45140811800956726f,-0.06544674932956696f,0.27154937386512756f,-1.203261375427246f,-0.21332035958766937f,0.8113646507263184f,-0.23975150287151337f,-0.2693038582801819f,0.20140400528907776f,0.16929718852043152f,-0.2388615608215332f,0.20772291719913483f,-0.5291081070899963f,-0.17562326788902283f,0.10829375684261322f,-0.9625781774520874f,0.1068328246474266f,0.22469106316566467f,-0.2337813377380371f,-0.07104292511940002f,-0.5743539333343506f,-0.32632216811180115f,0.038649410009384155f,0.13008525967597961f,0.02648647502064705f,-0.15546131134033203f,1.5635931491851807f,0.025572150945663452f},
{2.718548536300659f,-2.4721014499664307f,0.2906685173511505f,1.2711524963378906f,-0.49755430221557617f,-0.025780361145734787f,0.5067746043205261f,-2.209226608276367f,-0.3355410695075989f,2.053006172180176f,0.2649611830711365f,-2.3765242099761963f,-0.029951006174087524f,-0.005192920565605164f,0.20863232016563416f,0.25620603561401367f,-1.375850796699524f,-0.30441316962242126f,-0.3512604534626007f,-2.340895891189575f,0.10424350202083588f,-0.009217172861099243f,0.11990180611610413f,0.3152395784854889f,-1.3226662874221802f,0.19827589392662048f,-0.278697669506073f,0.9180163145065308f,-0.34610462188720703f,-0.0012509822845458984f,0.33043405413627625f,-0.053316205739974976f},
{0.20082953572273254f,-0.3293028473854065f,0.15515866875648499f,0.38857918977737427f,0.022376351058483124f,-0.008546920493245125f,-0.04682992026209831f,-0.06396719813346863f,-0.13507501780986786f,-0.11766078323125839f,-0.08986316621303558f,-0.3768438398838043f,0.09392929077148438f,-0.02030598558485508f,-0.17407774925231934f,-0.041438039392232895f,-0.43712759017944336f,-0.07779207825660706f,0.2857636511325836f,-0.42887356877326965f,-0.18191516399383545f,-0.16872906684875488f,-0.2501657009124756f,-0.23358337581157684f,-0.5499646067619324f,-0.14798402786254883f,-0.1072954386472702f,-0.10270185768604279f,-0.3651081621646881f,-0.033211708068847656f,-1.7639816999435425f,0.11262083053588867f},
{0.1810125708580017f,0.04380026459693909f,0.1585540771484375f,0.09520703554153442f,0.13614939153194427f,-0.2871411144733429f,0.027985045686364174f,0.24350906908512115f,0.24975617229938507f,0.06216800585389137f,-0.22294187545776367f,-0.5886633396148682f,0.10294389724731445f,-0.07682676613330841f,0.052227020263671875f,-0.5156266093254089f,-0.15223275125026703f,-0.272625207901001f,-0.35299432277679443f,-0.18794843554496765f,-0.0981115773320198f,0.021598905324935913f,-0.12170252203941345f,-0.027094602584838867f,-0.28403598070144653f,0.016911834478378296f,-0.32526659965515137f,-0.22122310101985931f,-0.3122880160808563f,0.00411224365234375f,-1.6618061065673828f,0.24875596165657043f},
{0.011248071677982807f,-0.3440488576889038f,0.1305990219116211f,0.1634446233510971f,-0.1435123234987259f,-0.22065450251102448f,-0.13434356451034546f,0.12558163702487946f,-0.036939892917871475f,-0.12558740377426147f,-0.2808530926704407f,-0.1826796531677246f,0.10954022407531738f,0.22486212849617004f,0.23004469275474548f,-0.4840049743652344f,-0.15952230989933014f,0.05736207962036133f,0.12664148211479187f,-0.15527382493019104f,-0.31599417328834534f,-0.02127060294151306f,-0.2822587490081787f,0.08045688271522522f,-0.7549505233764648f,-0.07828792929649353f,-0.08483991026878357f,-0.0207098089158535f,-0.059344928711652756f,-0.11358706653118134f,-2.75872802734375f,0.0935753881931305f},
{-0.1231784000992775f,-0.039662137627601624f,-0.2328716218471527f,0.41179922223091125f,0.08715936541557312f,-0.14673462510108948f,0.10638939589262009f,-0.36458462476730347f,-0.30250200629234314f,-0.15081094205379486f,-0.33652785420417786f,0.12425272911787033f,0.08001843094825745f,0.10154984146356583f,-0.2551456391811371f,1.087019443511963f,0.08366376906633377f,0.316246896982193f,0.08225584775209427f,-0.21876347064971924f,-0.21885016560554504f,0.1560649871826172f,-0.11126312613487244f,-0.30638599395751953f,-0.40880250930786133f,0.05366125702857971f,0.1294359266757965f,0.2448592334985733f,-0.0201678816229105f,0.28930428624153137f,-1.4611858129501343f,0.1775827705860138f},
{-0.2089596837759018f,0.06453723460435867f,-0.0634300708770752f,0.13166697323322296f,-0.36363914608955383f,-0.6308650970458984f,-0.010237024165689945f,-0.10475338250398636f,-0.28933432698249817f,-0.18470923602581024f,-0.32581478357315063f,-0.04712572693824768f,-0.17047008872032166f,0.24898871779441833f,0.016325324773788452f,0.9002126455307007f,-0.3312543034553528f,-0.23234836757183075f,0.18384136259555817f,-0.2505335211753845f,0.13443168997764587f,-0.24138674139976501f,0.2283824384212494f,0.010796308517456055f,-0.18242990970611572f,0.09781908988952637f,0.07673224806785583f,-0.0375511609017849f,0.4107106029987335f,0.02820834517478943f,0.6104573607444763f,0.17321613430976868f},
{-0.25129181146621704f,1.0552700757980347f,-0.29345569014549255f,-0.5351536870002747f,-0.3985939621925354f,-1.1024703979492188f,-0.2657238245010376f,0.019460858777165413f,-0.22419829666614532f,0.47431257367134094f,0.282219797372818f,-0.16405567526817322f,-0.03579244017601013f,-0.1687009334564209f,-0.28509521484375f,-0.9953089356422424f,-0.001277706935070455f,-0.17347121238708496f,-0.3031772971153259f,-0.1526116281747818f,0.24897505342960358f,0.21679124236106873f,-0.22265808284282684f,0.31252244114875793f,-0.44624584913253784f,0.2008223831653595f,0.3222421705722809f,0.43312186002731323f,0.6519185900688171f,0.14098921418190002f,4.913338661193848f,-0.04709109663963318f},
{0.2144526243209839f,-0.4853420853614807f,0.1837349236011505f,0.4992810785770416f,-0.049303676933050156f,-0.16164228320121765f,-0.2237636148929596f,0.06998294591903687f,-0.1106376126408577f,0.9089545607566833f,-0.13708744943141937f,-0.047490619122982025f,-0.2591227889060974f,-0.3686586320400238f,0.061814457178115845f,4.4232940673828125f,-0.5329093933105469f,0.20787635445594788f,-0.02931533008813858f,-0.3807309567928314f,-0.2677971422672272f,0.025913476943969727f,0.011856883764266968f,-0.002827882766723633f,0.24938860535621643f,0.028789907693862915f,0.3261648118495941f,-0.2596067786216736f,-0.2998162508010864f,-0.32888755202293396f,-0.5427634119987488f,0.09549155831336975f},
{-0.001334975939244032f,-0.11350695043802261f,0.05985936522483826f,0.34115123748779297f,-0.11124051362276077f,0.01227458007633686f,0.2972363531589508f,-0.10988402366638184f,-0.06534075736999512f,0.8434353470802307f,0.28291523456573486f,-0.10051646828651428f,0.031953901052474976f,-0.0022092361468821764f,0.1021522581577301f,3.8103036880493164f,-0.31991440057754517f,0.08450636267662048f,-0.11887738108634949f,0.10229919105768204f,-0.24059925973415375f,-0.014602094888687134f,0.11327552795410156f,-0.31571850180625916f,0.20790383219718933f,-0.14150118827819824f,0.24654820561408997f,-0.39427995681762695f,-0.1427154541015625f,0.23035290837287903f,0.5915879011154175f,0.2325780689716339f},
{0.12685076892375946f,-0.10873474925756454f,0.24405649304389954f,-0.17700229585170746f,-0.31883007287979126f,0.11844643205404282f,0.30884283781051636f,0.3269212245941162f,0.07765036076307297f,0.8023349046707153f,-0.03895876184105873f,-0.05754624679684639f,0.18033960461616516f,-0.34255746006965637f,0.03770804405212402f,0.6625205278396606f,0.00980472657829523f,-0.06876960396766663f,0.23091186583042145f,0.2826549708843231f,0.2729778587818146f,0.2508205473423004f,0.025177806615829468f,0.2262592613697052f,-0.24321362376213074f,0.1852022111415863f,0.18975666165351868f,-0.5789910554885864f,-0.3306794762611389f,-0.09938693046569824f,0.4308316111564636f,-0.1806284636259079f},
{-0.12595590949058533f,-0.0918254479765892f,-0.13136014342308044f,0.04583144560456276f,-0.34972572326660156f,0.29451239109039307f,0.028729718178510666f,0.11094336211681366f,-0.18802323937416077f,0.9224112033843994f,-0.3028465509414673f,-0.21619796752929688f,0.05990728735923767f,-0.2451106309890747f,0.26781734824180603f,-1.2170041799545288f,-0.0901833325624466f,-0.13362249732017517f,-0.2815459072589874f,-0.45441287755966187f,0.14839361608028412f,0.06692108511924744f,-0.12372803688049316f,0.041742414236068726f,-0.18964315950870514f,-0.11748671531677246f,-0.11852662265300751f,-0.1516326367855072f,-0.2872304916381836f,0.2662833034992218f,-0.03345943242311478f,0.17151817679405212f},
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};

const float h2[32][32] = { 
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{-0.19646918773651123f,0.002147972583770752f,-0.04321768879890442f,0.2524152100086212f,0.039372533559799194f,-0.24828968942165375f,0.6935232877731323f,-0.14352136850357056f,0.24677053093910217f,0.048597872257232666f,-0.12809783220291138f,1.2671866416931152f,0.010356568731367588f,-1.5664680004119873f,-0.19318237900733948f,-0.7424448132514954f,0.056778669357299805f,-0.2737269401550293f,-0.29584428668022156f,0.24127694964408875f,-0.48102137446403503f,-0.06914578378200531f,-0.16832955181598663f,0.2706228494644165f,-0.4924691617488861f,2.0721607208251953f,-1.8100959062576294f,1.475907325744629f,-0.28620439767837524f,-0.0511949360370636f,0.19307708740234375f,1.6319316625595093f},
{-0.1579037755727768f,0.28447648882865906f,-0.1789936125278473f,0.20799604058265686f,0.025723248720169067f,0.17740526795387268f,-0.1666354387998581f,-0.06060470640659332f,-0.017253071069717407f,-0.2790656089782715f,-0.16800916194915771f,-0.2990717589855194f,0.07126197218894958f,-0.08032660186290741f,-0.1799015998840332f,-0.1891922950744629f,0.2556300461292267f,0.2080206573009491f,-0.24888339638710022f,0.27691522240638733f,-0.21319638192653656f,-0.14012537896633148f,-0.30466505885124207f,-0.013728171586990356f,-0.1629670113325119f,0.2530798614025116f,0.0633285641670227f,0.0011726915836334229f,-0.14820529520511627f,0.2823629677295685f,0.10884168744087219f,-0.2637729346752167f},
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{-0.18258020281791687f,0.2506926953792572f,-0.0804666131734848f,0.08235585689544678f,0.02918580174446106f,-0.327265202999115f,-0.07576625049114227f,-0.13690795004367828f,0.043158918619155884f,-0.2690317630767822f,-0.5958983898162842f,-0.47659018635749817f,-0.27281659841537476f,-0.12866327166557312f,-0.38381248712539673f,-0.2798430621623993f,-0.10307048261165619f,0.15626338124275208f,-0.19660992920398712f,0.04106660932302475f,-0.0601617805659771f,0.05024907365441322f,0.19172045588493347f,-0.2798337936401367f,-0.05941186472773552f,-0.02522856369614601f,0.3012700378894806f,0.17071844637393951f,0.2695164978504181f,-0.16498444974422455f,0.008398771286010742f,-0.13133783638477325f},
{-0.19158349931240082f,-0.004258692264556885f,0.032371193170547485f,-0.2693426012992859f,-0.023485273122787476f,-0.29336631298065186f,0.6338390111923218f,-0.2668501138687134f,-0.03548547625541687f,0.08825305104255676f,-0.17250679433345795f,0.1041390523314476f,-0.26444390416145325f,0.41167017817497253f,-0.3789145052433014f,-0.32638683915138245f,0.2371552288532257f,0.24713221192359924f,0.23947544395923615f,0.19400858879089355f,-0.0887998715043068f,0.18473951518535614f,-0.1307595670223236f,-0.10346674174070358f,0.3634099066257477f,-0.23307152092456818f,0.5753985047340393f,-0.17762428522109985f,0.05800282955169678f,-0.26823562383651733f,0.17187702655792236f,0.18498310446739197f},
{-0.21433322131633759f,-0.1279313862323761f,-0.11171227693557739f,0.27164509892463684f,-0.26441383361816406f,0.16968202590942383f,-0.22347897291183472f,-0.2772391438484192f,-0.26620519161224365f,0.17144301533699036f,-0.6824053525924683f,-0.36272379755973816f,0.2655913531780243f,-0.5736172795295715f,-0.21337908506393433f,0.058745093643665314f,-0.16153597831726074f,0.18742787837982178f,-0.2565487325191498f,0.0900397077202797f,-0.33379432559013367f,-0.14819838106632233f,-0.07988794147968292f,-0.18341456353664398f,-0.2762095332145691f,0.31096121668815613f,-0.48296481370925903f,-0.2723126709461212f,-0.11822041869163513f,0.19546762108802795f,-0.16657039523124695f,-0.22732144594192505f},
{0.20982852578163147f,0.11346611380577087f,0.04012581706047058f,0.025473803281784058f,0.22828009724617004f,-0.3026310205459595f,-1.6610443592071533f,-0.12493795901536942f,0.2864855229854584f,0.01006925106048584f,-1.6744041442871094f,0.28360995650291443f,-0.2593194246292114f,-0.6620850563049316f,-0.29043570160865784f,-2.2500503063201904f,-0.2721019387245178f,0.2706601917743683f,-0.16461779177188873f,-0.11082688719034195f,-0.4680328369140625f,-0.3877258002758026f,-0.07979777455329895f,0.20552334189414978f,-4.128807544708252f,-0.4893045425415039f,1.5998578071594238f,0.2545700669288635f,-0.14135785400867462f,0.07403197884559631f,0.16089555621147156f,0.3558458089828491f},
{0.28564146161079407f,0.2890130579471588f,-0.021617114543914795f,0.11687019467353821f,0.29321715235710144f,0.07065775990486145f,-0.2717415988445282f,-0.23997274041175842f,0.29470762610435486f,-0.06864601373672485f,0.09986010938882828f,-0.09799063950777054f,0.24146446585655212f,-0.016309112310409546f,0.26754143834114075f,0.22709563374519348f,0.046292245388031006f,0.06025278568267822f,0.056145161390304565f,0.25802502036094666f,0.21172749996185303f,0.04203718900680542f,0.28743305802345276f,-0.016932066529989243f,0.035908136516809464f,-0.16033335030078888f,-0.04660121351480484f,0.1315695196390152f,0.2501918375492096f,-0.14010676741600037f,-0.24744901061058044f,-0.2319546937942505f},
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};

const float h3[32][32] = { 
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{0.1991647183895111f,0.12534403800964355f,-0.04112154245376587f,0.23123982548713684f,-0.17588619887828827f,-0.302817702293396f,-0.1610087752342224f,-0.031804412603378296f,0.10274738073348999f,-0.25018924474716187f,0.15975651144981384f,-0.057292819023132324f,0.1464652419090271f,0.08016204833984375f,0.2151305377483368f,0.2952744662761688f,-0.21319252252578735f,0.04970458149909973f,0.10210192203521729f,0.3050673305988312f,0.21167120337486267f,-0.15151944756507874f,0.13887640833854675f,0.25299301743507385f,-0.11117732524871826f,-0.07015113532543182f,-0.287551611661911f,-0.025779157876968384f,-0.07337476313114166f,-0.24420931935310364f,0.015819430351257324f,-0.10595546662807465f},
{0.12202468514442444f,0.10608518123626709f,-0.10034829378128052f,-0.3246283531188965f,0.20245090126991272f,0.04734083265066147f,-0.06113804876804352f,-0.11568751931190491f,0.3261568248271942f,-0.3037929832935333f,-0.06917986273765564f,-0.11160935461521149f,-0.09358227252960205f,-0.21875040233135223f,-0.06735922396183014f,0.05864924192428589f,-0.25733181834220886f,-0.17565661668777466f,0.095695361495018f,-0.07591581344604492f,-0.2171992063522339f,0.14910152554512024f,0.173453688621521f,-0.05681343376636505f,0.20495089888572693f,0.1795230209827423f,0.19069638848304749f,0.04863719269633293f,-0.19967538118362427f,0.2425754964351654f,-0.22172409296035767f,-0.009572982788085938f},
{-0.3055141270160675f,-0.22692157328128815f,-0.06546061486005783f,-0.22364665567874908f,-0.301609069108963f,0.3466431796550751f,0.09419310092926025f,0.21086838841438293f,-1.2103636264801025f,0.1926555335521698f,-1.2885984182357788f,-0.20249620079994202f,-0.25163519382476807f,0.04730202257633209f,-0.023131370544433594f,0.036719828844070435f,0.16260939836502075f,0.05286213755607605f,-0.2853477895259857f,0.11423645913600922f,-0.12400790303945541f,0.26420584321022034f,0.1409359872341156f,0.19191309809684753f,0.5323112607002258f,-0.02825927734375f,-0.14624470472335815f,-1.3739569187164307f,-0.12972024083137512f,0.1865309774875641f,0.14116251468658447f,-0.6218597888946533f},
{0.1782623827457428f,-0.015146075747907162f,-0.4011057913303375f,-0.09168504178524017f,0.035190191119909286f,-0.01224052906036377f,-0.2435605823993683f,0.1475539207458496f,2.0372250080108643f,-0.64677494764328f,0.09235234558582306f,-0.3219165503978729f,-0.6243833303451538f,-0.21862100064754486f,-0.2527656555175781f,-0.3049176335334778f,0.032145023345947266f,-0.25376296043395996f,-1.736000418663025f,-0.35007935762405396f,-1.5456494092941284f,0.08730726689100266f,0.1247415542602539f,0.05391114950180054f,-2.0970795154571533f,-0.0563075952231884f,0.13928088545799255f,4.6070876121521f,-0.5247244238853455f,0.1616479754447937f,-0.29320231080055237f,-0.930035412311554f},
{-0.17396044731140137f,-0.10267387330532074f,-0.38119179010391235f,-0.16983388364315033f,-0.10548646748065948f,0.9111438989639282f,-0.13985206186771393f,-0.1761629432439804f,0.3419595956802368f,-1.4837113618850708f,1.480345368385315f,-0.4204767048358917f,0.7904236912727356f,-0.2960832118988037f,-0.19851773977279663f,-0.10762731730937958f,0.14198419451713562f,0.10370296239852905f,0.23569215834140778f,-4.164161205291748f,-4.5298590660095215f,-0.9154318571090698f,0.18175193667411804f,-0.19857197999954224f,0.7777286767959595f,-0.37469691038131714f,0.09056463092565536f,-0.4552287757396698f,-0.2473701536655426f,-0.1200934648513794f,-0.15247362852096558f,-3.3762712478637695f},
{-0.12546227872371674f,-0.23776933550834656f,-0.4473806321620941f,0.11002571135759354f,0.011121923103928566f,-0.3694802522659302f,-0.28310835361480713f,-0.020981580018997192f,0.8688364624977112f,-0.47459572553634644f,1.7547227144241333f,-0.09219010174274445f,0.7238489389419556f,-1.6560261249542236f,-0.0649729073047638f,0.2468220293521881f,0.060016900300979614f,-0.16779978573322296f,0.883475661277771f,-0.7162744402885437f,-1.7292978763580322f,-0.8765726685523987f,-0.26878347992897034f,0.22389158606529236f,-0.28621965646743774f,-0.1761058121919632f,-0.4023822844028473f,0.6458700299263f,-0.006878874264657497f,-0.000007510185241699219f,-0.014864769764244556f,2.9540889263153076f},
{0.07555973529815674f,-0.0029259920120239258f,-0.08789914846420288f,0.06678077578544617f,-0.11083845794200897f,0.11010000109672546f,-0.14982634782791138f,0.12075316905975342f,-0.2766430675983429f,0.013024389743804932f,0.18159812688827515f,-0.20200279355049133f,0.2637675702571869f,-0.1856893002986908f,0.2882818281650543f,0.05304515361785889f,-0.15297894179821014f,0.07341468334197998f,0.05268138647079468f,0.1067940890789032f,-0.2661813795566559f,-0.2009473443031311f,0.1843600869178772f,0.2517976462841034f,-0.07343396544456482f,-0.051110416650772095f,-0.23432010412216187f,0.16746872663497925f,-0.2205146849155426f,-0.017525076866149902f,0.20926335453987122f,-0.2141496241092682f},
{0.06582912802696228f,0.2796666920185089f,-0.2556927502155304f,0.0023079216480255127f,0.2043982446193695f,0.13894453644752502f,0.06556430459022522f,0.29767414927482605f,0.24966773390769958f,-0.16670267283916473f,-0.1203770637512207f,-0.06570860743522644f,-0.015925198793411255f,0.17675906419754028f,-0.014884740114212036f,-0.05300724506378174f,0.26490333676338196f,0.15243005752563477f,-0.07319167256355286f,0.2353842556476593f,0.23596063256263733f,0.1602974534034729f,-0.04174882173538208f,-0.11559568345546722f,-0.06235519051551819f,0.21069613099098206f,-0.19532959163188934f,-0.2486409693956375f,0.032513976097106934f,-0.2712400257587433f,-0.19435247778892517f,-0.23200613260269165f},
{-0.1299392580986023f,-0.06208275258541107f,-0.18067686259746552f,0.062329649925231934f,-0.22588664293289185f,-0.06877543032169342f,-0.19175797700881958f,0.02903696894645691f,-0.2614779472351074f,0.016345679759979248f,-0.24767392873764038f,0.2033931314945221f,-0.30105409026145935f,0.08271035552024841f,0.13206014037132263f,0.15829482674598694f,-0.21012049913406372f,0.2088232934474945f,0.07014858722686768f,-0.19175665080547333f,0.28649166226387024f,0.05041047930717468f,-0.27260470390319824f,-0.025072306394577026f,0.2722422182559967f,-0.007939159870147705f,-0.22979341447353363f,0.11936154961585999f,0.1298319399356842f,0.18135693669319153f,-0.008151531219482422f,0.15906798839569092f},
{0.07638216018676758f,0.07996532320976257f,-0.4532916247844696f,-0.286763995885849f,-0.14361587166786194f,0.15333548188209534f,0.2795381247997284f,-0.25668495893478394f,1.5776686668395996f,-0.3557981550693512f,-4.558074474334717f,-0.0959593802690506f,-0.2420492321252823f,1.8044195175170898f,-0.029521822929382324f,-0.19500072300434113f,0.06506577134132385f,-0.011876672506332397f,0.9772398471832275f,-1.1837528944015503f,1.1952396631240845f,-0.7478441596031189f,-0.15799765288829803f,-0.17324526607990265f,0.7002406120300293f,0.017084553837776184f,-0.2846224009990692f,-0.2008575201034546f,-0.8861852288246155f,0.22636333107948303f,-0.3774070739746094f,-0.03760375455021858f},
};

const float hout[32] = { 0.3285340666770935f,0.32595810294151306f,-0.16531020402908325f,-0.1120261549949646f,-0.02814103290438652f,0.20109859108924866f,-0.0071088592521846294f,0.1081397533416748f,0.14690308272838593f,-0.04607205465435982f,0.1793166697025299f,-0.09312135726213455f,-0.2741614878177643f,0.973639726638794f,0.2356991171836853f,-0.1462659239768982f,0.09851181507110596f,-0.21499931812286377f,-0.22608381509780884f,-0.19660963118076324f,-0.13850048184394836f,0.33182141184806824f,-0.2774904668331146f,-0.175692617893219f,0.12098437547683716f,0.062369804829359055f,-0.26919692754745483f,-0.09816103428602219f,0.8765497207641602f,-0.3257754445075989f,-0.19969786703586578f,-0.5018784403800964f };

const float b1[32] = { 0.360392302274704f,1.3258261680603027f,-1.7145336866378784f,0.11188247054815292f,1.0527279376983643f,0.5051818490028381f,-0.10494530200958252f,1.3075183629989624f,0.5332803726196289f,-1.3167273998260498f,0.5802411437034607f,2.0797219276428223f,-0.3425353467464447f,-0.8710014224052429f,-1.087764859199524f,0.34449902176856995f,0.6696957945823669f,-0.26377663016319275f,0.22221045196056366f,0.7987192273139954f,-0.3121899664402008f,-1.1118980646133423f,-1.6770726442337036f,-1.2263047695159912f,1.8851773738861084f,-2.0880801677703857f,-1.0489267110824585f,0.6635584235191345f,0.4126681685447693f,-1.0887231826782227f,0.7133725881576538f,-0.4426153898239136f };

const float b2[32] = { -0.21426281332969666f,-0.7642630338668823f,-1.4564176797866821f,-0.4739953577518463f,-0.6939148902893066f,0.08300478756427765f,-0.4721355140209198f,-0.4483444094657898f,-1.20063054561615f,-1.912178635597229f,-0.07969088852405548f,0.6989963054656982f,-0.3409772515296936f,1.5607539415359497f,-0.1873372495174408f,0.5244904160499573f,-1.798204779624939f,-1.5844906568527222f,-0.06145767867565155f,-0.2975791394710541f,-0.05740395933389664f,0.1989542841911316f,0.09335066378116608f,-1.0665833950042725f,0.060874372720718384f,1.2573281526565552f,0.9455531239509583f,0.3112686574459076f,-0.6323830485343933f,-0.4208582937717438f,-1.178520679473877f,-0.8882189989089966f };

const float b3[32] = { -1.963319182395935f,-0.49897506833076477f,-0.04165864363312721f,-0.24708756804466248f,-0.12295565754175186f,0.8161247372627258f,-0.490390807390213f,-0.6562485098838806f,-0.11963385343551636f,-0.35514017939567566f,-1.653018593788147f,-0.1486135721206665f,-0.8058865666389465f,-2.3385539054870605f,-1.1428403854370117f,-0.3598397970199585f,-1.3594286441802979f,-1.0192245244979858f,-0.8995988368988037f,0.8749277591705322f,0.11804358661174774f,1.180364966392517f,-1.026091456413269f,-0.8066051602363586f,0.5967051982879639f,-0.565889835357666f,-0.2720939517021179f,-0.15897169709205627f,0.0058806478045880795f,-2.3236680030822754f,-0.21091698110103607f,-2.045327663421631f };

const float bout[1] = { -0.08369258046150208f };


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;
    }
    

    /************************************
    ***     Program is operating!
    *************************************/
    while(1) {
//        if(timer_while==1000 && OPERATING_MODE==5) {
        //if(timer_while==1000) {
            //i2c
            
            read_field(i2c_slave_addr1);
            if(DIR_VALVE_ENC < 0) value = 1023 - value;
            //            if(LED==1) {
            //                LED=0;
            //            } else
            //                LED = 1;
            timer_while = 0;
        //}
        
        timer_while ++;
        
        if(NN_Control_Flag == 0) {
            LED = 0;
        }
        
        else if(NN_Control_Flag == 1) {
            float output1[32] = { 0.0f };
            float output2[32] = { 0.0f };
            float output3[32] = { 0.0f };
            float output = 0.0f;

            for (int index2 = 0; index2 < 32; 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 < 32; index2++) {
                for (int index1 = 0; index1 < 32; 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 < 32; index2++) {
                for (int index1 = 0; index1 < 32; 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 < 32; index1++) {
                    output = output + hout[index1] * output3[index1];
                }
                output = output + bout[index2];
                
            }
            output = 1.0f/(1.0f+exp(-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;
            
        }
        
        

    }
}

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 = 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) valve_pos_err_sum = 1000;
    if (valve_pos_err_sum<-1000) valve_pos_err_sum = -1000;

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

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

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

    return PWM_duty;
}





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

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

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

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

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


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


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

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

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


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

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


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

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

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

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


        int UTILITY_MODE = 0;
        int CONTROL_MODE = 0;

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



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

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

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

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

                        TORQUE_VREF += 0.0003f * (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();

                    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();

                    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();
                    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();

                                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();

                                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();
                        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.;
                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;
            }



            default:
                break;
        }

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

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

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

                break;
            }

            case MODE_JOINT_CONTROL: {
                double torq_ref = 0.0f;
                pos.err = (pos.ref - pos.sen)/(float)(ENC_PULSE_PER_POSITION); //[mm]
                vel.err = (0.0f - vel.sen)/(float)(ENC_PULSE_PER_POSITION); //[mm/s]
                pos.err_sum += pos.err/(float) TMR_FREQ_5k; //[mm]
                
                //K & D Low Pass Filter
                float alpha_K_D = 1.0f/(1.0f + 5000.0f/(2.0f*3.14f*30.0f)); // f_cutoff : 30Hz
                K_LPF = K_LPF*(1.0f-alpha_K_D)+K_SPRING*(alpha_K_D);
                D_LPF = D_LPF*(1.0f-alpha_K_D)+D_DAMPER*(alpha_K_D);
                
                torq_ref = torq.ref + K_LPF * pos.err - D_LPF * vel.sen / ENC_PULSE_PER_POSITION; //[N]

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

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

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

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

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

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

                    I_REF = (1.0f - alpha_trans) * I_REF_POS + alpha_trans * (I_REF_VC + I_REF_FORCE_FB);
                    
                    // Anti-windup for FT
                    if (I_GAIN_JOINT_TORQUE != 0) {
                        double I_MAX = 10.0f; // Maximum Current : 10mV
                        double Ka = 2.0f / ((double) I_GAIN_JOINT_TORQUE * 0.001f);
                        if (I_REF > I_MAX) {
                            double I_rem = I_REF - I_MAX;
                            I_rem = Ka*I_rem;
                            I_REF = I_MAX;
                            torq.err_sum = torq.err_sum - I_rem /(float) TMR_FREQ_5k;
                        } else if (I_REF < -I_MAX) {
                            double I_rem = I_REF - (-I_MAX);
                            I_rem = Ka*I_rem;
                            I_REF = -I_MAX;
                            torq.err_sum = torq.err_sum - I_rem /(float) TMR_FREQ_5k;
                        }
                    }

                } else {
                    float VALVE_POS_RAW_FORCE_FB = 0.0f;
                    float VALVE_POS_RAW_FORCE_FF = 0.0f;
                    float VALVE_POS_RAW = 0.0f;
                    
                    VALVE_POS_RAW_FORCE_FB = alpha_trans*(((float) P_GAIN_JOINT_TORQUE * torq.err + (float) I_GAIN_JOINT_TORQUE * torq.err_sum) * 0.01f
                                                          + DDV_JOINT_POS_FF(vel.sen))+ (1.0f-alpha_trans) * (P_GAIN_JOINT_POSITION * 0.01f * pos.err + DDV_JOINT_POS_FF(vel.ref));

                    VALVE_POS_RAW_FORCE_FF = P_GAIN_JOINT_TORQUE_FF * torq_ref * 0.001f + D_GAIN_JOINT_TORQUE_FF * (torq_ref - torq_ref_past) * 0.0001f;
                    
                    VALVE_POS_RAW = VALVE_POS_RAW_FORCE_FB + VALVE_POS_RAW_FORCE_FF;
                    
                    
                    if (VALVE_POS_RAW >= 0) {
                        valve_pos.ref = VALVE_POS_RAW + VALVE_DEADZONE_PLUS;
                    } else {
                        valve_pos.ref = VALVE_POS_RAW + VALVE_DEADZONE_MINUS;
                    }

                    if(I_GAIN_JOINT_TORQUE != 0) {
                        double Ka = 1.0f / (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;
            }

            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);
        }
        
//        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) {
                //valve position
                double t_value = 0;
                if(valve_pos.ref>=(float) VALVE_CENTER) {
                    t_value = 10000.0f*((double)valve_pos.ref - (double)VALVE_CENTER)/((double)VALVE_MAX_POS - (double)VALVE_CENTER);
                } else {
                    t_value = -10000.0f*((double)valve_pos.ref - (double)VALVE_CENTER)/((double)VALVE_MIN_POS - (double)VALVE_CENTER);
                }
//                if(OPERATING_MODE==5) {
//                    t_value = (double) value;
//                } else if(CURRENT_CONTROL_MODE==1) {
//                    t_value = cur.sen;
//                } else {
//                    t_value = V_out;
//                }
                CAN_TX_TORQUE((int16_t) (t_value)); //1300
                //CAN_TX_TORQUE((int16_t) (cur.sen * 1000.0f)); //1300
                //CAN_TX_TORQUE((int16_t) (I_REF * 1000.0f)); //1300
            }


            if (flag_data_request[2] == HIGH) {
                //pressure A and B
                CAN_TX_PRES((int16_t) (pres_A.sen), (int16_t) (pres_B.sen)); // CUR_PRES_X : 0(0bar)~4096(210bar) //1400
            }

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

            if (flag_data_request[3] == HIGH) {
                //PWM
                //CAN_TX_PWM((int16_t) value); //1500
                CAN_TX_PWM((int16_t) input_NN[0] * 100.0f); //1500
            }
            //for (i = 0; i < 10000; i++) {
//                ;
//            }
            if (flag_data_request[4] == HIGH) {
                //valve position
                CAN_TX_VALVE_POSITION((int16_t) (input_NN[1] * 100.0f), (int16_t) (input_NN[2]* 100.0f), (int16_t) (input_NN[3]* 100.0f), (int16_t) (input_NN[4]* 100.0f)); //1600
            }

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

            TMR2_COUNT_CAN_TX = 0;
        }
        TMR2_COUNT_CAN_TX++;

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

}