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Original Version of STM Board
main.cpp
- Committer:
- Lightvalve
- Date:
- 2020-07-12
- Revision:
- 85:a3b46118b5cd
- Parent:
- 84:c355d3e52bf1
- Child:
- 86:b8ed7abddeb2
File content as of revision 85:a3b46118b5cd:
//200712-1 #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 x_future[num_array_x_future] = {0.0f}; float f_past[num_array_f_past] = {0.0f}; float f_future[num_array_f_future] = {0.0f}; float input_NN[num_input] = { 0.0f }; const float h1[num_input][32] = { 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{0.07638216018676758f,0.07996532320976257f,-0.30373215675354004f,-0.28068432211875916f,0.12841704487800598f,0.016976704820990562f,0.2795381247997284f,-0.25668495893478394f,-0.08276357501745224f,0.1293344497680664f,-0.05191630870103836f,0.02524423599243164f,0.10861700028181076f,0.2590629756450653f,-0.029521822929382324f,-0.19500072300434113f,0.06506577134132385f,-0.011876672506332397f,0.12026964873075485f,0.27703770995140076f,0.1338760256767273f,0.001670554280281067f,-0.15799765288829803f,-0.17324526607990265f,0.20246674120426178f,0.1901901364326477f,-0.17624419927597046f,-0.06433966010808945f,-0.13379955291748047f,0.22636333107948303f,-0.18080484867095947f,0.26258352398872375f}, }; const float hout[32] = { 0.3285340666770935f,0.2529861629009247f,-0.02794448845088482f,-0.11024416238069534f,-0.014000286348164082f,0.5794768929481506f,-0.16548395156860352f,-0.02517510950565338f,0.8701211810112f,-0.1466466784477234f,1.4857077598571777f,0.11510539799928665f,-0.08165325224399567f,1.1056994199752808f,0.11580539494752884f,0.13693712651729584f,0.004584930371493101f,-0.21499931812286377f,-0.10640942305326462f,-0.12329035252332687f,-0.6041821241378784f,-0.5037342309951782f,-0.13192011415958405f,0.07643738389015198f,0.30652591586112976f,0.2520971894264221f,-0.14245828986167908f,0.4719190001487732f,0.017724622040987015f,-0.3257754445075989f,-0.215330570936203f,1.0069118738174438f }; const float b1[32] = { 0.4471018612384796f,0.8732520341873169f,-1.7145336866378784f,0.11060962080955505f,1.837284803390503f,1.007750391960144f,-0.06491786241531372f,0.8956719636917114f,2.6451375484466553f,-1.2619271278381348f,0.5940906405448914f,2.6766932010650635f,-0.3425353467464447f,-0.98967444896698f,-1.087764859199524f,0.33063894510269165f,-5.126280784606934f,-0.26377663016319275f,0.21976712346076965f,1.9539169073104858f,-0.284685879945755f,-1.1118980646133423f,-1.6770726442337036f,-1.2263047695159912f,6.089069843292236f,-2.0880801677703857f,-1.0489267110824585f,-0.5635794401168823f,0.5242202281951904f,-1.0887231826782227f,5.702357769012451f,-0.46849215030670166f }; const float b2[32] = { -0.37478387355804443f,-0.8822373747825623f,-1.610761046409607f,-0.5953555107116699f,-0.7830360531806946f,-0.23389804363250732f,1.5533720254898071f,-0.565883457660675f,-1.20063054561615f,-1.912178635597229f,-0.08753211051225662f,0.132071852684021f,-0.38167816400527954f,0.24978798627853394f,-0.21596388518810272f,-0.02125457674264908f,-1.9359937906265259f,-1.5844906568527222f,-0.12828677892684937f,-0.4470262825489044f,1.2603751420974731f,-0.08529075235128403f,-0.30154427886009216f,-1.1930168867111206f,1.6427350044250488f,-0.014808067120611668f,2.628875494003296f,-0.6658599376678467f,-0.6933333873748779f,-0.38596004247665405f,-1.3031682968139648f,-1.5120806694030762f }; const float b3[32] = { -1.963319182395935f,-0.524648904800415f,-0.11971238255500793f,-2.6649246215820312f,-0.13388246297836304f,2.9242334365844727f,-0.6314579844474792f,-0.8082239031791687f,-0.21274924278259277f,-0.04028291255235672f,-0.5043213963508606f,-0.35809093713760376f,-0.8338872790336609f,1.2783610820770264f,-1.3000545501708984f,0.9831259846687317f,-1.493859052658081f,-1.0192245244979858f,-0.5513612031936646f,-0.1602744311094284f,0.28453513979911804f,1.1440303325653076f,-1.1831269264221191f,-1.1371890306472778f,-0.025017697364091873f,-0.36519983410835266f,-0.5132201910018921f,2.1017091274261475f,0.1228194534778595f,-2.3236680030822754f,-0.27946344017982483f,-0.06861314922571182f }; const float bout[1] = { 0.33465152978897095f }; 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 += 0.000003f * (0.0f - CUR_TORQUE_mean); if (TORQUE_VREF > 3.3f) TORQUE_VREF = 3.3f; if (TORQUE_VREF < 0.0f) TORQUE_VREF = 0.0f; //spi_eeprom_write(RID_TORQUE_SENSOR_VREF, (int16_t) (TORQUE_VREF * 1000.0)); dac_1 = TORQUE_VREF / 3.3f; } } else { CONTROL_UTILITY_MODE = MODE_NO_ACT; TMR3_COUNT_TORQUE_NULL = 0; CUR_TORQUE_sum = 0; CUR_TORQUE_mean = 0; ROM_RESET_DATA(); 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 }