Yeseong Jeong
/
HydraulicControlBoard_Start
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main.cpp
- Committer:
- Lightvalve
- Date:
- 2020-07-06
- Revision:
- 83:b5bba84861d8
- Parent:
- 82:d286749256a4
- Child:
- 84:c355d3e52bf1
File content as of revision 83:b5bba84861d8:
//200706-2
#include "mbed.h"
#include "FastPWM.h"
#include "INIT_HW.h"
#include "function_CAN.h"
#include "SPI_EEP_ENC.h"
#include "I2C_AS5510.h"
#include "setting.h"
#include "function_utilities.h"
#include "stm32f4xx_flash.h"
#include "FlashWriter.h"
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] = {
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{-0.046717751771211624f,0.5695285201072693f,-0.20532599091529846f,-1.2181252241134644f,-1.1444178819656372f,0.051552511751651764f,0.08615109324455261f,-0.5481662750244141f,1.113271951675415f,-0.5327227115631104f,0.09830469638109207f,0.7365548014640808f,-0.11809042096138f,0.3226141035556793f,-0.12817290425300598f,-0.49741601943969727f,-0.02993183396756649f,-0.23756909370422363f,0.1354731023311615f,0.21702346205711365f,-0.24942269921302795f,-0.08793863654136658f,-0.14710915088653564f,-0.29148542881011963f,0.36930331587791443f,0.14159366488456726f,0.13380053639411926f,-1.1923422813415527f,0.2520531713962555f,0.1323157548904419f,-0.528695821762085f,0.07832175493240356f},
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{0.9495735764503479f,-2.8530120849609375f,0.30513831973075867f,2.8614296913146973f,2.32742977142334f,0.16561035811901093f,0.10742717236280441f,-1.8813526630401611f,-2.857640266418457f,2.3896453380584717f,0.2602704167366028f,-2.9228105545043945f,-0.03144201636314392f,0.044423945248126984f,0.21901831030845642f,-0.03282030299305916f,-0.9076781272888184f,-0.3195672333240509f,-3.180483818054199f,-1.9639261960983276f,0.13521116971969604f,-0.009676039218902588f,0.12587067484855652f,0.3309326469898224f,-2.939507007598877f,0.20814630389213562f,-0.2925715744495392f,2.055593252182007f,0.5959512591362f,-0.0013132691383361816f,2.6052420139312744f,-1.159593105316162f},
{-0.010118883103132248f,0.17603738605976105f,0.16288265585899353f,0.17041069269180298f,0.3467976748943329f,-0.0789240151643753f,-0.19750314950942993f,-0.2856864929199219f,-0.9953857064247131f,-0.6672870516777039f,-0.11525606364011765f,0.03540292754769325f,0.098605215549469f,-0.03643724322319031f,-0.18274356424808502f,-0.33491650223731995f,-0.16071350872516632f,-0.08166468143463135f,-0.09586126357316971f,-0.09420882165431976f,-0.16223669052124023f,-0.1771286129951477f,-0.2626192569732666f,-0.24521145224571228f,0.20916321873664856f,-0.15535086393356323f,-0.1126367449760437f,0.3733903467655182f,-0.2701224088668823f,-0.03486502170562744f,-1.320512056350708f,-0.06048555672168732f},
{0.25715816020965576f,-0.03475144878029823f,0.16644713282585144f,0.407154381275177f,1.6552796363830566f,-0.23206715285778046f,0.051666371524333954f,-3.3632619380950928f,0.8518839478492737f,0.04021477326750755f,-0.2550952136516571f,-0.44656333327293396f,0.10806858539581299f,-0.10458404570817947f,0.054826945066452026f,0.14023979008197784f,-0.26521652936935425f,-0.28619682788848877f,-0.5460033416748047f,0.5786210298538208f,-0.07430306077003479f,0.022674113512039185f,-0.12776102125644684f,-0.02844339609146118f,0.0841803178191185f,0.0177537202835083f,-0.341458797454834f,1.914996862411499f,-0.20374681055545807f,0.004316955804824829f,-2.1620028018951416f,-0.015127910301089287f},
{0.06626773625612259f,-0.320145845413208f,0.13710039854049683f,0.4238254725933075f,1.579092264175415f,-0.29698872566223145f,-0.023510707542300224f,-4.222825050354004f,0.588687002658844f,0.22302789986133575f,-0.3158661127090454f,-0.017030322924256325f,0.11499327421188354f,0.2358274906873703f,0.24149659276008606f,0.011927744373679161f,-0.3362255096435547f,0.06021764874458313f,-0.0735672265291214f,0.6062617301940918f,-0.30298954248428345f,-0.022329479455947876f,-0.2963099479675293f,0.08446213603019714f,-0.6479023694992065f,-0.08218517899513245f,-0.08906334638595581f,2.5516419410705566f,0.25081536173820496f,-0.11924156546592712f,-2.1845967769622803f,-0.14605742692947388f},
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};
const float h2[32][32] = {
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};
const float h3[32][32] = {
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{-0.12546227872371674f,-0.040895745158195496f,-0.08090300858020782f,0.13400162756443024f,-0.14662517607212067f,-0.29301342368125916f,-0.28310835361480713f,-0.020981580018997192f,0.010351124219596386f,-0.1294756382703781f,-0.19499319791793823f,0.046816736459732056f,-0.005123240407556295f,-0.09859045594930649f,-0.0649729073047638f,0.2468220293521881f,0.060016900300979614f,-0.16779978573322296f,0.07262704521417618f,0.0829080268740654f,-0.16057102382183075f,0.09701334685087204f,-0.28036168217658997f,0.22389158606529236f,-0.0448453351855278f,0.020356476306915283f,-0.26727598905563354f,0.249968022108078f,0.08561224490404129f,-0.000007510185241699219f,0.094448983669281f,-0.08219978213310242f},
{0.07555973529815674f,-0.0029259920120239258f,-0.08789914846420288f,0.06678077578544617f,-0.1265704184770584f,-0.025904223322868347f,-0.14982634782791138f,0.12075316905975342f,-0.2766430675983429f,0.013024389743804932f,0.2112746685743332f,-0.20200279355049133f,0.10446741431951523f,-0.39846673607826233f,0.2882818281650543f,0.05304515361785889f,-0.15297894179821014f,0.07341468334197998f,0.05268138647079468f,0.1067940890789032f,-0.12317532300949097f,-0.16722092032432556f,0.1843600869178772f,0.2517976462841034f,-0.0900656133890152f,-0.16655482351779938f,-0.23432010412216187f,0.15254825353622437f,-0.20769748091697693f,-0.017525076866149902f,0.20926335453987122f,-0.1038133054971695f},
{0.06582912802696228f,0.2796666920185089f,-0.2556927502155304f,0.0023079216480255127f,0.3613894581794739f,-0.01434530969709158f,0.06556430459022522f,0.29767414927482605f,0.40706509351730347f,-0.16670267283916473f,-0.2714720368385315f,-0.06570860743522644f,-0.06654709577560425f,0.021350549533963203f,-0.014884740114212036f,-0.05300724506378174f,0.26490333676338196f,0.15243005752563477f,0.0841580331325531f,0.2353842556476593f,0.39228516817092896f,0.004803914111107588f,-0.04174882173538208f,-0.11559568345546722f,-0.216618150472641f,0.21069613099098206f,-0.19532959163188934f,-0.09529750049114227f,0.032513976097106934f,-0.2712400257587433f,-0.19435247778892517f,-0.23200613260269165f},
{-0.1299392580986023f,-0.06208275258541107f,-0.18067686259746552f,0.062329649925231934f,-0.22328625619411469f,-0.06877543032169342f,-0.19175797700881958f,0.02903696894645691f,-0.2614779472351074f,0.016345679759979248f,-0.24952805042266846f,0.2033931314945221f,-0.29699447751045227f,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,0.07732139527797699f,-0.30373215675354004f,-0.27519625425338745f,0.13013198971748352f,0.015126615762710571f,0.2795381247997284f,-0.25668495893478394f,-0.08089734613895416f,0.09238649159669876f,-0.026776641607284546f,0.02524423599243164f,0.11048605293035507f,0.25715363025665283f,-0.029521822929382324f,-0.19500072300434113f,0.06506577134132385f,-0.011876672506332397f,0.12295812368392944f,0.24479621648788452f,0.1355903446674347f,-0.00015643970982637256f,-0.1791561245918274f,-0.17324526607990265f,0.21761217713356018f,0.1901901364326477f,-0.27123093605041504f,-0.06252744793891907f,-0.11570298671722412f,0.22636333107948303f,-0.2677184045314789f,0.21909776329994202f},
};
const float hout[32] = { 0.3285340666770935f,0.13846565783023834f,-0.07104799896478653f,0.18257376551628113f,-0.16361720860004425f,0.11612511426210403f,0.03588892146945f,0.1081397533416748f,0.11910854279994965f,0.10337844491004944f,0.13150642812252045f,-0.11640904098749161f,-0.23372183740139008f,0.1647065281867981f,0.2356991171836853f,-0.1462659239768982f,0.09851181507110596f,-0.21499931812286377f,0.0772331953048706f,-0.07612764835357666f,-0.23285314440727234f,-0.18265759944915771f,0.04004863277077675f,-0.11024488508701324f,0.2793011963367462f,0.2669006288051605f,-0.3283284902572632f,-0.8490635752677917f,0.3065551519393921f,-0.3257754445075989f,-0.22434811294078827f,-0.19677908718585968f };
const float b1[32] = { 0.5102354884147644f,1.4454234838485718f,-1.7145336866378784f,-0.13135932385921478f,1.8859272003173828f,0.7050048112869263f,-0.08465349674224854f,1.0487871170043945f,0.858688235282898f,-1.6059504747390747f,0.5568068623542786f,2.217176675796509f,-0.3425353467464447f,-0.9377808570861816f,-1.087764859199524f,0.9572884440422058f,0.5541136860847473f,-0.26377663016319275f,-0.449740469455719f,0.5352871417999268f,-0.284685879945755f,-1.1118980646133423f,-1.6770726442337036f,-1.2263047695159912f,3.0480804443359375f,-2.0880801677703857f,-1.0489267110824585f,0.9022058844566345f,0.2357945293188095f,-1.0887231826782227f,2.7682852745056152f,-0.5293285846710205f };
const float b2[32] = { -0.3680103123188019f,-0.7642630338668823f,-1.4564176797866821f,-0.6497427821159363f,-0.6939148902893066f,-0.020249705761671066f,-0.372101366519928f,-0.30969977378845215f,-1.20063054561615f,-1.912178635597229f,0.023847151547670364f,0.5569860935211182f,-0.2355569750070572f,1.793886423110962f,-0.5586162209510803f,1.0859285593032837f,-1.798204779624939f,-1.5844906568527222f,0.009519282728433609f,-0.46726593375205994f,0.49785974621772766f,0.052135393023490906f,-0.07042714953422546f,-1.0452868938446045f,0.25523853302001953f,2.1917080879211426f,0.15757890045642853f,-0.2608587145805359f,-0.7634363770484924f,-0.5724443197250366f,-1.323826551437378f,-1.3565272092819214f };
const float b3[32] = { -1.963319182395935f,-0.5446904301643372f,-0.3016548156738281f,-0.8402144312858582f,-0.6773909330368042f,0.8409193754196167f,-0.6582568883895874f,-0.6562485098838806f,-0.009772130288183689f,-0.06044171005487442f,1.192558765411377f,-0.5217856168746948f,-1.4038946628570557f,-0.7718222141265869f,-1.1428403854370117f,-0.3598397970199585f,-1.3594286441802979f,-1.0192245244979858f,-0.9686634540557861f,-0.27930739521980286f,-3.1515591144561768f,-1.206493854522705f,-1.1485735177993774f,-0.8956993222236633f,0.4146289527416229f,-1.1049379110336304f,-0.12451136857271194f,-1.522766351699829f,-1.0368304252624512f,-2.3236680030822754f,-0.17192073166370392f,1.6605290174484253f };
const float bout[1] = { -0.11106075346469879f };
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
}