20210203

Dependencies:   mbed FastPWM

main.cpp

Committer:
Lightvalve
Date:
2020-06-12
Revision:
81:49a733a3eb9e
Parent:
80:cfc7eabde63a
Child:
82:d286749256a4

File content as of revision 81:49a733a3eb9e:

//200612-1
#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] = { 
   {-1.088716983795166f,1.356402039527893f,0.10589459538459778f,-0.43692758679389954f,-1.7950611114501953f,0.12725915014743805f,-0.40818843245506287f,0.714809775352478f,0.5034290552139282f,-1.0029406547546387f,-0.22158309817314148f,0.13176502287387848f,-0.19318288564682007f,0.22376887500286102f,-0.21103838086128235f,-0.6001524329185486f,0.36171770095825195f,0.24935457110404968f,0.9605618119239807f,1.6027634143829346f,-0.33476194739341736f,0.10696089267730713f,-0.3326931595802307f,-0.0792258083820343f,0.8332709670066833f,0.18374285101890564f,-0.1767144799232483f,-0.7951967716217041f,-0.5436206459999084f,-0.18794111907482147f,-1.6769053936004639f,1.8259540796279907f},
{-0.9213252663612366f,1.330963134765625f,0.29864487051963806f,-0.3783237040042877f,-1.0148227214813232f,0.00454622833058238f,0.08461318165063858f,0.44819051027297974f,0.19977037608623505f,-0.34439802169799805f,-0.31243905425071716f,-0.28794223070144653f,0.021212786436080933f,0.14747163653373718f,0.045876264572143555f,-0.47863349318504333f,0.04655824974179268f,0.06295260787010193f,0.9794549942016602f,0.9034493565559387f,-0.03096979856491089f,-0.12077532708644867f,-0.09506890177726746f,0.27714261412620544f,0.286868155002594f,0.2936786115169525f,0.12686115503311157f,-0.250116229057312f,-0.6339253783226013f,0.09809011220932007f,-1.3773446083068848f,1.0479621887207031f},
{-0.2200627475976944f,0.2154243290424347f,-0.0042223334312438965f,-0.26675742864608765f,-0.788112223148346f,-0.19681809842586517f,0.053243886679410934f,0.23489665985107422f,0.48784056305885315f,-0.26301485300064087f,0.2585364580154419f,0.3688863217830658f,-0.03282937407493591f,0.16022825241088867f,-0.31718650460243225f,-0.38114598393440247f,0.45172151923179626f,-0.2658354640007019f,0.893288791179657f,0.40446892380714417f,0.22159990668296814f,-0.15311938524246216f,0.13552400469779968f,-0.24659553170204163f,0.5464335083961487f,0.14537742733955383f,-0.15514154732227325f,-0.07743170112371445f,-0.5375910997390747f,0.302763432264328f,-0.6922473907470703f,0.42653176188468933f},
{-0.024508042261004448f,-0.6258366703987122f,-0.20532599091529846f,-1.4891437292099f,-0.9899010062217712f,-0.1711190789937973f,0.09804031997919083f,-0.19763818383216858f,0.8621402978897095f,-0.3167000412940979f,0.09623097628355026f,1.2397507429122925f,-0.11809042096138f,0.29494261741638184f,-0.12817290425300598f,-0.06290968507528305f,0.009730181656777859f,-0.23756909370422363f,0.4586086571216583f,0.33456170558929443f,-0.24942269921302795f,-0.08793863654136658f,-0.14710915088653564f,-0.29148542881011963f,0.9802191853523254f,0.14159366488456726f,0.13380053639411926f,-0.11857002228498459f,0.23646412789821625f,0.1323157548904419f,0.5415506958961487f,0.468021959066391f},
{0.5840082168579102f,-0.029223354533314705f,0.08410122990608215f,-1.0761308670043945f,-0.05445202812552452f,-0.397617369890213f,0.11680789291858673f,-0.7259165048599243f,-0.26360446214675903f,0.2981261610984802f,-0.2716690003871918f,0.8114379644393921f,0.211430162191391f,0.17305968701839447f,-0.25075238943099976f,0.3422377407550812f,-0.3941330313682556f,-0.18436601758003235f,-0.048812128603458405f,-0.2088773399591446f,0.1375632882118225f,0.23587647080421448f,-0.24541926383972168f,-0.07457953691482544f,0.5313988924026489f,-0.34256690740585327f,0.04057341814041138f,-0.16950565576553345f,0.6305892467498779f,-0.16320037841796875f,1.3491301536560059f,-0.7304763793945312f},
{1.856147050857544f,-2.4551618099212646f,0.30513831973075867f,3.3675105571746826f,3.1976048946380615f,-0.5638076066970825f,0.1650332510471344f,-1.2564380168914795f,-2.2442626953125f,1.741302251815796f,0.25819119811058044f,-2.8534340858459473f,-0.03144201636314392f,-0.0075338068418204784f,0.21901831030845642f,0.16833961009979248f,-1.2895042896270752f,-0.3195672333240509f,-3.6593241691589355f,-3.128480911254883f,0.13521116971969604f,-0.009676039218902588f,0.12587067484855652f,0.3309326469898224f,-3.278230905532837f,0.20814630389213562f,-0.2925715744495392f,0.7865549325942993f,0.8920918703079224f,-0.0013132691383361816f,1.222727656364441f,-3.2728967666625977f},
{-0.04335753247141838f,-0.2893924415111542f,0.16288265585899353f,-0.1845194548368454f,0.29563501477241516f,-0.2745168209075928f,-0.20015691220760345f,-0.01522457879036665f,-0.008454561233520508f,-0.0906229317188263f,-0.11678708344697952f,-0.3337182402610779f,0.098605215549469f,-0.040519122034311295f,-0.18274356424808502f,-0.37481918931007385f,-0.2170715183019638f,-0.08166468143463135f,0.1903073787689209f,0.14792855083942413f,-0.16223669052124023f,-0.1771286129951477f,-0.2626192569732666f,-0.24521145224571228f,-0.4254782795906067f,-0.15535086393356323f,-0.1126367449760437f,-0.047129563987255096f,-0.2529458701610565f,-0.03486502170562744f,-0.028447464108467102f,-0.10880075395107269f},
{0.3039092719554901f,-3.173795223236084f,0.16644713282585144f,0.6087268590927124f,0.7433172464370728f,-0.304500937461853f,0.041098080575466156f,-0.07076975703239441f,0.4116152226924896f,0.6779890656471252f,-0.25636374950408936f,-1.2787790298461914f,0.10806858539581299f,-0.0843484178185463f,0.054826945066452026f,0.097584567964077f,-0.5524027943611145f,-0.28619682788848877f,-0.42500951886177063f,1.6943641901016235f,-0.07430306077003479f,0.022674113512039185f,-0.12776102125644684f,-0.02844339609146118f,-0.28170329332351685f,0.0177537202835083f,-0.341458797454834f,0.07061272859573364f,-0.38041573762893677f,0.004316955804824829f,-1.3212554454803467f,0.6348853707313538f},
{0.1464175283908844f,-1.8001210689544678f,0.13710039854049683f,0.5821526646614075f,0.6362445950508118f,-0.2754206657409668f,-0.058339912444353104f,-0.3139013946056366f,-0.13684764504432678f,0.6809412240982056f,-0.3170667290687561f,-1.1160606145858765f,0.11499327421188354f,0.2439008355140686f,0.24149659276008606f,-0.05593078210949898f,-0.6412650942802429f,0.06021764874458313f,-0.2665325105190277f,1.5391459465026855f,-0.30298954248428345f,-0.022329479455947876f,-0.2963099479675293f,0.08446213603019714f,-0.6962825059890747f,-0.08218517899513245f,-0.08906334638595581f,0.3435560464859009f,0.044320881366729736f,-0.11924156546592712f,-1.2101494073867798f,0.2418629676103592f},
{-0.599009096622467f,1.8579455614089966f,-0.24446426331996918f,0.6711753010749817f,0.1921110302209854f,-0.23040658235549927f,0.21086733043193817f,-0.6327200531959534f,-0.8742055296897888f,0.08812077343463898f,-0.37544822692871094f,-1.156468152999878f,0.08400186896324158f,0.10989996045827866f,-0.26784712076187134f,-0.6285372376441956f,0.020710188895463943f,0.3319900929927826f,-0.2737749218940735f,0.8027782440185547f,-0.20100386440753937f,0.1638341248035431f,-0.11680193245410919f,-0.321638286113739f,-0.522280752658844f,0.05633258819580078f,0.13587942719459534f,0.06388276815414429f,0.0951433777809143f,0.30370619893074036f,-1.1857651472091675f,0.46311768889427185f},
{-0.6719592809677124f,1.6787164211273193f,-0.06658771634101868f,0.5009914040565491f,-0.4448509216308594f,-0.3146272897720337f,0.11615403741598129f,-0.363150030374527f,-0.8936355113983154f,-0.6140048503875732f,-0.364166796207428f,-0.7050037384033203f,-0.1789563000202179f,0.25618261098861694f,0.017138004302978516f,0.050937797874212265f,-0.2526540458202362f,-0.24391496181488037f,0.08404892683029175f,-0.2910766303539276f,0.16973629593849182f,-0.25340327620506287f,0.23975160717964172f,0.011333763599395752f,-0.40672430396080017f,0.10268864035606384f,0.08055207133293152f,-0.626385509967804f,0.08959521353244781f,0.029612571001052856f,-1.0322411060333252f,0.3754975199699402f},
{-0.3269667625427246f,0.8252581357955933f,-0.3080642819404602f,0.02202049270272255f,-0.5499030947685242f,-0.3586338460445404f,-0.214262917637825f,-0.08404795080423355f,-0.4037841856479645f,-0.03819969296455383f,0.27412348985671997f,-0.2172783762216568f,-0.03757423162460327f,-0.18650352954864502f,-0.2992876172065735f,0.009294860064983368f,0.12222683429718018f,-0.1821068376302719f,0.04190685227513313f,-0.941453218460083f,0.29002442955970764f,0.2275833785533905f,-0.23374228179454803f,0.3280802071094513f,-0.5090363621711731f,0.2108195722103119f,0.33828380703926086f,-0.22446557879447937f,-0.07521136105060577f,0.1480078399181366f,-0.4044974148273468f,0.41212931275367737f},
{-0.08390654623508453f,0.015874089673161507f,0.19288143515586853f,0.24738842248916626f,-0.025368159636855125f,0.062364641577005386f,-0.3472626507282257f,0.03883868083357811f,-0.22754988074302673f,0.4010859727859497f,-0.16611306369304657f,-0.20298896729946136f,-0.2720222473144531f,-0.38876837491989136f,0.06489166617393494f,-0.38405439257621765f,-0.2634519338607788f,0.21822473406791687f,0.054363880306482315f,-1.0227841138839722f,-0.25171342492103577f,0.027203470468521118f,0.012447118759155273f,-0.0029686689376831055f,-0.09600047767162323f,0.03022313117980957f,0.3424017131328583f,-0.12782499194145203f,-0.18553265929222107f,-0.34525999426841736f,-0.04883668199181557f,0.4324217140674591f},
{-0.3251248002052307f,-0.28273582458496094f,0.06283923983573914f,-0.1723012775182724f,0.010441486723721027f,0.04440616816282272f,0.21558646857738495f,-0.2991830110549927f,-0.13757453858852386f,0.21801677346229553f,0.27481886744499207f,0.06552785634994507f,0.03354460000991821f,-0.004022854845970869f,0.1072375476360321f,-0.32804930210113525f,-0.054015643894672394f,0.08871319890022278f,-0.09721574932336807f,-0.9587839245796204f,-0.2227887064218521f,-0.01532900333404541f,0.11891454458236694f,-0.33143535256385803f,-0.07668948173522949f,-0.1485452950000763f,0.25882163643836975f,-0.2783063054084778f,0.0728372186422348f,0.24182012677192688f,0.7144005298614502f,0.15086261928081512f},
{0.011917371302843094f,-0.784371018409729f,0.25620588660240173f,-0.25165143609046936f,-0.07364246249198914f,0.08645293861627579f,0.16001202166080475f,-0.12899860739707947f,0.06236940622329712f,0.035779595375061035f,-0.06297456473112106f,0.23182165622711182f,0.18931713700294495f,-0.3644510805606842f,0.03958520293235779f,0.1550138294696808f,0.18471340835094452f,-0.07219305634498596f,0.2846050262451172f,-0.766995370388031f,0.31619134545326233f,0.26330670714378357f,0.026431173086166382f,0.237522691488266f,-0.38765543699264526f,0.19442179799079895f,0.1992029845714569f,-0.5467320680618286f,-0.29995009303092957f,-0.10433453321456909f,0.2598647475242615f,-0.025154883041977882f},
{-0.44387832283973694f,-0.2231394350528717f,-0.13789941370487213f,-0.14271517097949982f,-0.0704769492149353f,0.2901962101459503f,-0.30533167719841003f,-0.004877246916294098f,-0.022197088226675987f,0.10487562417984009f,-0.3400110602378845f,0.2205333560705185f,0.06288954615592957f,-0.2580283284187317f,0.28114965558052063f,-0.4369873106479645f,0.2703016400337219f,-0.14027439057826996f,-0.14797502756118774f,-0.6511699557304382f,0.18525317311286926f,0.07025247812271118f,-0.12988737225532532f,0.04382038116455078f,-0.04057399928569794f,-0.12333536148071289f,-0.12442702054977417f,-0.09814316779375076f,-0.22287261486053467f,0.27953919768333435f,0.2679286301136017f,0.17073644697666168f},
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};

const float h2[32][32] = { 
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{-0.16757991909980774f,0.002147972583770752f,-0.04321768879890442f,0.22672173380851746f,0.039372533559799194f,-1.914575457572937f,-0.3635563254356384f,-0.05986310541629791f,0.24677053093910217f,0.048597872257232666f,0.3963196575641632f,-0.5496693849563599f,0.23339849710464478f,-0.30312231183052063f,-1.3352620601654053f,1.3593127727508545f,0.056778669357299805f,-0.2737269401550293f,0.17908139526844025f,0.20848672091960907f,-0.11389818042516708f,-0.14354339241981506f,-0.23082157969474792f,0.3068017065525055f,-1.6334677934646606f,-0.0596461184322834f,0.6082053184509277f,0.16626498103141785f,-0.28620439767837524f,-0.17129701375961304f,0.19307708740234375f,0.03753220662474632f},
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{-0.19158349931240082f,-0.004258692264556885f,0.032371193170547485f,-0.2950083613395691f,-0.023485273122787476f,-0.29336631298065186f,0.07842420041561127f,-0.14440131187438965f,-0.03548547625541687f,0.08825305104255676f,-0.24463658034801483f,0.24252738058567047f,-0.2578849494457245f,0.12747381627559662f,-0.16505973041057587f,-0.08821804076433182f,0.2371552288532257f,0.24713221192359924f,0.3034031391143799f,0.1606375128030777f,-0.018557917326688766f,0.18465527892112732f,-0.1307595670223236f,-0.06616498529911041f,0.1562625616788864f,-0.26027363538742065f,0.25462812185287476f,-0.13608692586421967f,0.05800282955169678f,-0.26823562383651733f,0.17187702655792236f,0.1361330896615982f},
{-0.21433322131633759f,-0.1279313862323761f,-0.11171227693557739f,0.2463894486427307f,-0.26441383361816406f,0.2845393121242523f,0.01145793404430151f,-0.20844537019729614f,-0.26620519161224365f,0.17144301533699036f,-0.12222135066986084f,-0.22872944176197052f,0.29584869742393494f,-0.16706599295139313f,-0.09736297279596329f,0.08199968189001083f,-0.16153597831726074f,0.18742787837982178f,0.03259015083312988f,0.06130842864513397f,0.034407902508974075f,-0.005313427187502384f,-0.07988794147968292f,-0.15210087597370148f,-0.20802952349185944f,0.08110731840133667f,0.1287367194890976f,-0.2033287137746811f,-0.11822041869163513f,0.19546762108802795f,-0.16657039523124695f,-0.021170668303966522f},
{0.29264822602272034f,0.11346611380577087f,0.04012581706047058f,0.00010260575800202787f,0.22828009724617004f,-0.16276249289512634f,-0.2580392062664032f,0.004197537899017334f,0.2864855229854584f,0.01006925106048584f,-0.08871933817863464f,0.2635993957519531f,-0.09209762513637543f,-0.3421846330165863f,-0.030720949172973633f,-0.25959688425064087f,-0.2721019387245178f,0.2706601917743683f,0.026812884956598282f,-0.14558176696300507f,0.007915139198303223f,-0.027919607236981392f,-0.21888025104999542f,0.23803244531154633f,-1.348713994026184f,0.4386616051197052f,0.20630782842636108f,-0.18208235502243042f,-0.14135785400867462f,-0.04751289263367653f,0.16089555621147156f,0.0421052984893322f},
{0.21176041662693024f,0.2890130579471588f,-0.021617114543914795f,0.09226167947053909f,0.29321715235710144f,-0.030004767701029778f,-0.5924806594848633f,-0.23997274041175842f,0.29470762610435486f,-0.06864601373672485f,-4.258163928985596f,2.0305402278900146f,0.27909860014915466f,-2.4944708347320557f,1.5964974164962769f,0.49149224162101746f,0.046292245388031006f,0.06025278568267822f,1.885345220565796f,0.22559262812137604f,0.08028018474578857f,-0.029790135100483894f,0.15652130544185638f,0.00037406105548143387f,8.80471134185791f,-2.3309409618377686f,-1.739478349685669f,0.09643516689538956f,0.2501918375492096f,-0.175725519657135f,-0.24744901061058044f,-0.22674475610256195f},
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};

const float h3[32][32] = { 
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{0.05588451027870178f,0.19731858372688293f,-0.055143773555755615f,0.030042022466659546f,-0.13887283205986023f,-0.1361943781375885f,-0.2855546772480011f,0.011247634887695312f,0.1085631251335144f,0.021339505910873413f,0.17599248886108398f,0.09762296080589294f,-0.05771490931510925f,-0.14660483598709106f,-0.21469902992248535f,0.03876742720603943f,-0.21865856647491455f,-0.12651903927326202f,0.22753819823265076f,-0.23926785588264465f,-0.14443452656269073f,0.06739777326583862f,0.14157342910766602f,0.049514561891555786f,-0.1251431256532669f,-0.25851932168006897f,0.0932874083518982f,0.2900666892528534f,-0.023782014846801758f,0.050485759973526f,0.09447437524795532f,0.0058679282665252686f},
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{-0.12546227872371674f,-0.08318237960338593f,-0.08090300858020782f,0.09109649807214737f,-0.18065805733203888f,-0.14661580324172974f,-0.28310835361480713f,-0.020981580018997192f,0.008542194031178951f,-0.029975347220897675f,-0.19499319791793823f,0.046816736459732056f,-0.1328035295009613f,-0.033555615693330765f,-0.0649729073047638f,0.2468220293521881f,0.060016900300979614f,-0.16779978573322296f,-0.004533681552857161f,0.0808403342962265f,-0.14752748608589172f,0.19232137501239777f,-0.2975190281867981f,0.22389158606529236f,-0.008572330698370934f,0.020356476306915283f,-0.2809964716434479f,0.1388186514377594f,0.2927553653717041f,-0.000007510185241699219f,0.094448983669281f,-0.11355950683355331f},
{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,0.11376072466373444f,0.2043982446193695f,0.006556193344295025f,0.06556430459022522f,0.29767414927482605f,0.2741435468196869f,-0.3104115426540375f,-0.1203770637512207f,-0.06570860743522644f,0.0801437497138977f,0.07826615124940872f,-0.014884740114212036f,-0.05300724506378174f,0.26490333676338196f,0.15243005752563477f,0.00830834824591875f,0.2353842556476593f,0.3048081696033478f,0.047963883727788925f,-0.04174882173538208f,-0.11559568345546722f,-0.18754573166370392f,0.21069613099098206f,-0.19532959163188934f,-0.11989406496286392f,0.02905001863837242f,-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,-0.30373215675354004f,-0.275196373462677f,0.1383296251296997f,0.00602369662374258f,0.2795381247997284f,-0.25668495893478394f,-0.07234203815460205f,-0.029978489503264427f,-0.026776641607284546f,0.02524423599243164f,0.11950141936540604f,0.24775198101997375f,-0.029521822929382324f,-0.19500072300434113f,0.06506577134132385f,-0.011876672506332397f,0.13283155858516693f,0.23867426812648773f,0.1442663073539734f,-0.009423065930604935f,-0.19167093932628632f,-0.17324526607990265f,0.2083253264427185f,0.1901901364326477f,-0.2995472848415375f,-0.05375587195158005f,-0.11682437360286713f,0.22636333107948303f,-0.2677184045314789f,0.19455544650554657f},
};

const float hout[32] = { 0.3285340666770935f,0.29040876030921936f,0.16681119799613953f,0.2709396481513977f,-0.04097283259034157f,0.10721125453710556f,0.09628883004188538f,0.1081397533416748f,0.029272375628352165f,0.17653435468673706f,-0.016048980876803398f,-0.12047142535448074f,-0.2050153613090515f,0.4891054034233093f,0.2356991171836853f,-0.1462659239768982f,0.016922255977988243f,-0.005949020851403475f,-0.16162875294685364f,0.621294379234314f,0.16312295198440552f,0.19141800701618195f,-0.1687193512916565f,-0.10208095610141754f,0.22520127892494202f,0.2555851936340332f,-0.32976531982421875f,-0.38228437304496765f,0.09762667119503021f,-0.3257754445075989f,-0.9466415643692017f,-0.09844258427619934f };

const float b1[32] = { 0.45553168654441833f,1.9252203702926636f,-1.7145336866378784f,-0.26975348591804504f,1.033017635345459f,0.6290810108184814f,-0.08519767224788666f,0.8372296094894409f,0.6405189037322998f,-1.3224029541015625f,0.5555195808410645f,1.609899878501892f,-0.3425353467464447f,-0.8894599080085754f,-1.087764859199524f,0.9570019245147705f,0.5061111450195312f,-0.26377663016319275f,0.5214936137199402f,0.6287582516670227f,-0.284685879945755f,-1.1118980646133423f,-1.6770726442337036f,-1.2263047695159912f,2.430602550506592f,-2.0880801677703857f,-1.0489267110824585f,0.5970383882522583f,0.3170478045940399f,-1.0887231826782227f,1.3548469543457031f,-1.067333698272705f };

const float b2[32] = { -0.2517685294151306f,-0.7642630338668823f,-1.4564176797866821f,-0.49962595105171204f,-0.6939148902893066f,0.856615424156189f,-0.06682460755109787f,-0.30969977378845215f,-1.20063054561615f,-1.912178635597229f,0.6656689643859863f,0.2882159352302551f,-0.09193919599056244f,0.37836161255836487f,0.28955671191215515f,0.706230103969574f,-1.798204779624939f,-1.5844906568527222f,-0.3195912539958954f,-0.33119359612464905f,-0.12431706488132477f,-0.06883032619953156f,-0.04454311728477478f,-1.0290898084640503f,-0.5579666495323181f,0.08014846593141556f,-0.22099442780017853f,-0.2975464463233948f,-0.6323830485343933f,-0.5182071924209595f,-1.178520679473877f,-1.3605209589004517f };

const float b3[32] = { -1.963319182395935f,-0.5171142816543579f,-0.06204008683562279f,-0.5983346700668335f,-0.2850309908390045f,0.732128918170929f,-0.5840697288513184f,-0.6562485098838806f,-0.17490826547145844f,0.7943865656852722f,-0.2582458555698395f,-0.09240569919347763f,-0.8568398356437683f,-1.595017671585083f,-1.1428403854370117f,-0.3598397970199585f,-1.458486795425415f,-1.1925535202026367f,-0.6394663453102112f,0.5121098756790161f,1.111078143119812f,1.2398830652236938f,-1.1914246082305908f,-0.991461992263794f,0.8862969279289246f,-0.4503258466720581f,-0.18612255156040192f,-2.0679550170898438f,0.3507072925567627f,-2.3236680030822754f,-0.6270813941955566f,1.699910283088684f };

const float bout[1] = { -0.2834494709968567f };


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

}