![](/media/cache/img/default_profile.jpg.50x50_q85.jpg)
This is probably never gonna get done
main.cpp
- Committer:
- Olaffo
- Date:
- 2019-03-21
- Revision:
- 25:ca5ccbf55b07
- Parent:
- 24:7dd4e187dd30
- Child:
- 26:d3e69e507616
File content as of revision 25:ca5ccbf55b07:
#include "mbed.h" #include "Crypto.h" //Photointerrupter input pins #define I1pin D3 #define I2pin D6 #define I3pin D5 //Incremental encoder input pins #define CHApin D12 #define CHBpin D11 //Motor Drive output pins //Mask in output byte #define L1Lpin D1 //0x01 #define L1Hpin A3 //0x02 #define L2Lpin D0 //0x04 #define L2Hpin A6 //0x08 #define L3Lpin D10 //0x10 #define L3Hpin D2 //0x20 #define PWMpin D9 //Motor current sense #define MCSPpin A1 #define MCSNpin A0 //Mapping from sequential drive states to motor phase outputs /* State L1 L2 L3 0 H - L 1 - H L 2 L H - 3 L - H 4 - L H 5 H L - 6 - - - 7 - - - */ //Drive state to output table const int8_t driveTable[] = {0x12,0x18,0x09,0x21,0x24,0x06,0x00,0x00}; //Mapping from interrupter inputs to sequential rotor states. 0x00 and 0x07 are not valid const int8_t stateMap[] = {0x07,0x05,0x03,0x04,0x01,0x00,0x02,0x07}; //const int8_t stateMap[] = {0x07,0x01,0x03,0x02,0x05,0x00,0x04,0x07}; //Alternative if phase order of input or drive is reversed //Phase lead to make motor spin int8_t lead = -2; //2 for forwards, -2 for backwards //Status LED DigitalOut led1(LED1); //Photointerrupter inputs InterruptIn I1(I1pin); InterruptIn I2(I2pin); InterruptIn I3(I3pin); //Motor Drive outputs DigitalOut L1L(L1Lpin); DigitalOut L1H(L1Hpin); DigitalOut L2L(L2Lpin); DigitalOut L2H(L2Hpin); DigitalOut L3L(L3Lpin); DigitalOut L3H(L3Hpin); PwmOut d9 (PWMpin); int8_t orState = 0; //int8_t intState = 0; //int8_t intStateOld = 0; int32_t revoCounter = 0; //Counts the number of revolutions int32_t motorVelocity; uint8_t mode = 6; //Phase lead to make motor spin //int8_t lead = -2; //2 for forwards, -2 for backwards typedef struct { int message; uint64_t data; float fdata; } mail_t; Mail<mail_t, 16> mail_box; Thread commsIn(osPriorityNormal,1024); Thread bitcointhread(osPriorityNormal,1024); Thread motorCtrlT(osPriorityNormal,1024); Thread commsOut(osPriorityNormal,1024); RawSerial pc(SERIAL_TX, SERIAL_RX); Queue<void, 8> inCharQ; Mutex newKey_mutex; uint64_t newKey = 0; volatile float newRev; volatile float maxSpeed = 90; float pulseWidth; float motorPosition_command; float motorPosition; //float pulseWidth; void serialISR() { uint8_t newChar = pc.getc(); inCharQ.put((void*) newChar); } /***************************************************************/ //The following block should be moved to a library, but I don't the time to figure this out atm. //CommsOut.h enum message_keys { KEY_DECLINED = 0, ROTATION_CMD = 1, ROTATION_FF_CMD = 2, MAX_SPEED_CMD = 3, KEY_ECHO = 4, TUNE_CMD = 5, STANDARD = 6, FOREVER_FORWARD = 7, LEAD = 9, INVALID_CMD = 10, MOTOR_POS = 11, MOTOR_SPEED = 12, NONCE_DETECT = 14, ROTOR_ORG = 15, WELCOME = 20 }; void putMessage(int message, uint64_t data = 0, float fdata=0){ mail_t *mail = mail_box.alloc(); mail->message = message; mail->data = data; mail->fdata = fdata; mail_box.put(mail); } void commsOutFunc() { while (true) { osEvent evt = mail_box.get(); if (evt.status == osEventMail) { mail_t *mail = (mail_t*)evt.value.p; switch (mail->message) { case KEY_DECLINED : pc.printf("Not a valid key!\n\r"); break; case ROTATION_CMD : pc.printf("Rotation count: %3.2f\n\r", mail->fdata); break; case ROTATION_FF_CMD : pc.printf("I will rotate forever..."); break; case MAX_SPEED_CMD : pc.printf("Max speed: %2.1f\n\r", mail->fdata); break; case KEY_ECHO : pc.printf("Received key: %016llx\n\r", mail->data); break; case TUNE_CMD : pc.printf("Tune command!\n\r"); break; case INVALID_CMD : pc.printf("Invalid command!\r\n"); break; case MOTOR_POS : pc.printf("Motor position: %f\r\n", mail->fdata); //pc.printf("{TIMEPLOT|%.2f|Motor Position}", mail->fdata); break; case MOTOR_SPEED : pc.printf("Motor speed: %f\r\n", mail->fdata); break; case NONCE_DETECT : pc.printf("Successful nonce: %016x\n\r", mail->data); break; case WELCOME : pc.printf("Hello Olaf\n\r"); break; case ROTOR_ORG : pc.printf("Rotor origin: %x\n\r", orState); case LEAD : pc.printf("Lead: %d\n\r\n\r", mail->data); break; } mail_box.free(mail); } } } //End of that block /***************************************************************/ /***************************************************************/ //The following block should also be moved to a library, but I still don't the time to figure this out atm. //CommsIn.h void R_Decoder(char* command) { int8_t sign =1; uint8_t index = 1; int intValue = 0; float decimalValue = 0; // Check sign if (command[1] == '-'){ sign = -1; index++; } // Take first digit if (command[index] > ('0'-1) && command[index] < (1 + '9')) { intValue = command[index] - '0'; index++; } else { putMessage(INVALID_CMD); return; } //Try taking 2 more digits if (command[index] > ('0'-1) && command[index] < (1 + '9')) { intValue = intValue*10 + command[index] - '0'; index++; } if (command[index] > ('0'-1) && command[index] < (1 + '9')) { intValue = intValue*10 + command[index] - '0'; index++; } //Check for '.' if (command[index] == '.') { index++; //Check for decimals if (command[index] > ('0'-1) && command[index] < (1 + '9')) { decimalValue = (command[index] - '0')/10; index++; } if (command[index] > ('0'-1) && command[index] < (1 + '9')) { decimalValue = (decimalValue/10 + command[index] - '0')/10; } } decimalValue = (decimalValue + intValue) * sign; if (decimalValue == 0){ mode = FOREVER_FORWARD; putMessage(ROTATION_FF_CMD); } else { newRev = decimalValue; putMessage(ROTATION_CMD,0,decimalValue); } } void V_Decoder(char* command) { uint8_t index = 1; int intValue = 0; float decimalValue = 0; // Take first digit if (command[index] > ('0'-1) && command[index] < (1 + '9')) { intValue = command[index] - '0'; index++; } else { putMessage(INVALID_CMD); return; } //Try taking 2 more digits if (command[index] > ('0'-1) && command[index] < (1 + '9')) { intValue = intValue*10 + command[index] - '0'; index++; } if (command[index] > ('0'-1) && command[index] < (1 + '9')) { intValue = intValue*10 + command[index] - '0'; index++; } //Check for '.' if (command[index] == '.') { index++; //Check for one decimal if (command[index] > ('0'-1) && command[index] < (1 + '9')) { decimalValue = (command[index] - '0')/10; } } decimalValue = (decimalValue + intValue); maxSpeed = decimalValue; putMessage(MAX_SPEED_CMD,0,decimalValue); } void commandProcessor() { pc.attach(&serialISR); char command[19]; char* number; //char k; uint64_t receivedKey; uint8_t index = 0; while(1) { osEvent newEvent = inCharQ.get(); uint8_t newChar = (uint8_t) newEvent.value.p; command[index] = newChar; index++; if (newChar == '\r') { command[17] = '\0'; if (command[0] == 'R') { R_Decoder(command); motorPosition_command = motorPosition; } else if (command[0] == 'V') { V_Decoder(command); } else if (command[0] == 'K') { if (index == 18){ // when index is 18 means you entered K and 16 digits number = command +1; //super bad solution, but I don't know how to work with strings in C receivedKey = strtoull(number, NULL, 16); putMessage(KEY_ECHO,receivedKey); newKey_mutex.lock(); newKey = receivedKey; newKey_mutex.unlock(); } else { putMessage(KEY_DECLINED); }; } else if (command[0] == 'T') { putMessage(TUNE_CMD); } memset(command, 0, sizeof(command)); index = 0; } else { pc.printf("Current command: %s\n\r", command); //Not sure how to go around this one cause it requires passing string } } } void bitcoin(){ while(1) { SHA256 sha; uint8_t sequence[] = {0x45,0x6D,0x62,0x65,0x64,0x64,0x65,0x64, 0x20,0x53,0x79,0x73,0x74,0x65,0x6D,0x73, 0x20,0x61,0x72,0x65,0x20,0x66,0x75,0x6E, 0x20,0x61,0x6E,0x64,0x20,0x64,0x6F,0x20, 0x61,0x77,0x65,0x73,0x6F,0x6D,0x65,0x20, 0x74,0x68,0x69,0x6E,0x67,0x73,0x21,0x20, 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}; uint64_t* key = (uint64_t*) ((int) sequence + 48); uint64_t* nonce = (uint64_t*) ((int) sequence + 56); uint8_t hash[32]; Timer t; t.start(); unsigned currentTime = 0; unsigned currentCount= 0; for (unsigned i = 0; i <= UINT_MAX; i++) { (*nonce)++; newKey_mutex.lock(); *key = newKey; newKey_mutex.unlock(); sha.computeHash(hash, sequence, 64); if (hash[0] == 0 && hash[1] == 0) { //putMessage(nonce); pc.printf("Successful nonce: %016x\n\r", *nonce); } if ((unsigned) t.read() == currentTime) { //pc.printf("Hash rate: %d\n\r", i - currentCount); //pc.printf("Current key: %016llx\n\r", *key); currentTime++; currentCount = i; } } t.stop(); } } //Set a given drive state void motorOut(int8_t driveState, float pulseWidth){ //Lookup the output byte from the drive state. int8_t driveOut = driveTable[driveState & 0x07]; //Turn off first if (~driveOut & 0x01) L1L = 0; if (~driveOut & 0x02) L1H = 1; if (~driveOut & 0x04) L2L = 0; if (~driveOut & 0x08) L2H = 1; if (~driveOut & 0x10) L3L = 0; if (~driveOut & 0x20) L3H = 1; //Then turn on if (driveOut & 0x01) L1L = 1; if (driveOut & 0x02) L1H = 0; if (driveOut & 0x04) L2L = 1; if (driveOut & 0x08) L2H = 0; if (driveOut & 0x10) L3L = 1; if (driveOut & 0x20) L3H = 0; //d9.write(1); d9.pulsewidth_us(pulseWidth); } //Convert photointerrupter inputs to a rotor state inline int8_t readRotorState(){ return stateMap[I1 + 2*I2 + 4*I3]; } int8_t motorHome() { //Put the motor in drive state 0 and wait for it to stabilize motorOut(0,pulseWidth); wait(2.0); return readRotorState(); } // ISR to handle the updating of the motor position void motorISR() { static int8_t oldRotorState; //orState is subtracted from future rotor state inputs to align rotor and motor states int8_t rotorState = readRotorState(); motorOut((rotorState-orState+lead+6)%6,pulseWidth); //+6 to make sure the remainder is positive if (rotorState - oldRotorState == 5) motorPosition --; else if (rotorState - oldRotorState == -5) motorPosition ++; else motorPosition += (rotorState - oldRotorState); //pc.printf ("motorpPosition %f\n\r", motorPosition); oldRotorState = rotorState; } /*void push() { intState = readRotorState(); if (intState != intStateOld) { intStateOld = intState; motorOut((intState - orState + lead +6) % 6); //+6 to make sure the remainder is positive } }*/ void motorCtrlTick(){ motorCtrlT.signal_set(0x1); } void motorCtrlFn(){ int32_t counter=0; static int32_t oldmotorPosition; float Ts; float sError; //speed error float intError = 0; //integral of velError float Tr; float error; float olderror = 0; float Speed; float Rev; int8_t leads = -2; int8_t leadr = -2; float kps = 25; float kis = 0.07; float kpr = 35; float kdr = 14.75; //proportional constant for speed // Timer to count time passed between ticks to calculate velocity Timer motorTime; motorTime.start(); float motorPos; float myTime; Ticker motorCtrlTicker; motorCtrlTicker.attach_us(&motorCtrlTick,100000); while(1){ motorCtrlT.signal_wait(0x1); // Convert variabls to int Speed = maxSpeed*6; Rev = newRev *6; motorPos = motorPosition; myTime = motorTime.read(); motorVelocity = (motorPos - oldmotorPosition)/myTime; error = Rev + motorPosition_command - motorPos; oldmotorPosition = motorPos; //equation for controls sError = Speed -abs(motorVelocity); if (motorVelocity != 0){ intError = intError + sError; } Ts = (kps * sError + kis * intError)*(error/abs(error)); Tr = kpr*error+kdr*(error-olderror)/ myTime; // Speed AND rotation control (aka standard mode) if (mode = STANDARD) { // Case for reverse rotation if (error < 0){ // Case for choosing rotational control if (Ts <=Tr ){ // Flip lead if ( Tr >= 0) { lead = -2; } else if ( Tr < 0) { lead = 2; } // Assure torque is in bounds if (Tr > 2000){ Tr = 2000; } else if (Tr < 0){ Tr = -Tr; } else if (Tr < -2000){ Tr = 2000; } // Pass torque pulseWidth = Tr; } // Case for choosing speed control else { pc.printf("Chose Ts %f\n\r", Ts); // Flip lead if ( Ts >= 0) { lead = -2; } else if ( Ts < 0) { lead = 2; } // Assure torque is in bounds if (Ts > 2000){ Ts = 2000; } else if (Ts < 0){ Ts = -Ts; } else if (Ts < -2000){ Ts = 2000; } // Pass torque pulseWidth = Ts; } } // Case for forward rotation else if (error >= 0){ // Case for choosing speed control if (Ts <=Tr ){ pc.printf("Chose Ts %f\n\r", Ts); // Flip lead if ( Ts >= 0) { lead = -2; } else if ( Ts < 0) { lead = 2; } // Assure torque is in bounds if (Ts > 2000){ Ts = 2000; } else if (Ts < 0){ Ts = -Ts; } else if (Ts < -2000){ Ts = 2000; } // Pass torque pulseWidth = Ts; } // Case for rotational speed control else { // Flip lead if ( Tr >= 0) { lead = -2; } else if ( Tr < 0) { lead = 2; } // Assure torque is in bounds if (Tr > 2000){ Tr = 2000; } else if (Tr < 0){ Tr = -Tr; } else if (Tr < -2000){ Tr = 2000; } // Pass torque pulseWidth = Tr; } } } // ONLY speed control (aka forever forward mode) else if (mode = FOREVER_FORWARD){ if ( Ts >= 0) { lead = -2; } else if ( Ts < 0) { lead = 2; } // Assure torque is in bounds if (Ts > 2000){ Ts = 2000; } else if (Ts < 0){ Ts = -Ts; } else if (Ts < -2000){ Ts = 2000; } pulseWidth = Ts; } counter++; motorTime.reset(); // Serial output to monitor speed and position if(counter == 10){ counter = 0; //display velocity and motor position putMessage(MOTOR_POS,0,(float)(motorPosition/6.0)); putMessage(MOTOR_SPEED,0,(float)(motorVelocity/6.0)); putMessage(LEAD,lead); } olderror=error; } } int main() { //Initialise bincoin mining and communication // Start up checkup d9.period(0.002f); //Set PWM period in seconds int8_t orState = motorHome(); putMessage(WELCOME); putMessage(ROTOR_ORG); // Start all threads commsIn.start(commandProcessor); commsOut.start(commsOutFunc); motorCtrlT.start(motorCtrlFn); bitcointhread.start(bitcoin); // Define motor ISRs I1.rise(&motorISR); I2.rise(&motorISR); I3.rise(&motorISR); I1.fall(&motorISR); I2.fall(&motorISR); I3.fall(&motorISR); }