STM32F103C8T6_WIFI_Heating_system
Dependencies: mbed mbed-STM32F103C8T6 eeprom_flash Watchdog PinDetect DS1820
- Bluepill STM32F103C8T6 Heating system
- _This project is core part of bigger heating system project!_
Features
- Reading temperature from four DS18B20 sensors
- Making a decision about switching on/off heater and pomp
- Executing simple user commands from UART
- Storing state parameters to program memory (EEPROM emulation)
main.cpp
- Committer:
- andrewklmn
- Date:
- 2018-09-23
- Revision:
- 45:abc682827659
- Parent:
- 44:e6efa8be1f9e
- Child:
- 46:0d60fbcfb245
File content as of revision 45:abc682827659:
#include "stm32f103c8t6.h" #include "mbed.h" #include "mbed_events.h" #include "DS1820.h" #include "PinDetect.h" #include "Watchdog.h" #include "eeprom_flash.h" #include <string> #include "temp_controller.h" // Create a queue that can hold a maximum of 32 events EventQueue queue(32 * EVENTS_EVENT_SIZE); // Create a thread that'll run the event queue's dispatch function //Thread t; Watchdog wd; unsigned int eeprom_config_value; extern char working_mode; extern int temp_error[]; extern float temp[]; extern float simulated_temp[]; Serial pc(PA_2, PA_3); // (TX, RX) Pin definition char a[128] = ""; // RX command buffer char i = 0; // RX char pointer static char recieved = 0; DigitalOut myled(LED1); DigitalOut pomp_OFF(PA_12); // pomp off DigitalOut heater_OFF(PA_15); // heater off // This function is called when a character goes into the RX buffer. void rxCallback() { char c; c = pc.getc(); if (recieved == 0){ // skip if command was already received if ( c == 0x0d || c == 0x0a ) { while ( pc.readable() ) c = pc.getc(); recieved = 1; } else { if (i==127){ // max length of command from SERIAL a[0] = c; a[1] = '\0'; i = 0; } else { a[i] = c; i++; a[i] = '\0'; }; }; }; }; void pb_hit_interrupt (void) { //writeEEPROMWord(0, 666 ); //epprom_config_value++; working_mode ++; if (working_mode == 6) working_mode=0; pc.printf("working_mode %d \r\n", working_mode); //pc.printf("Button pressed \r\n"); }; void pb_out_interrupt (void) { //queue.call_in(2000, printf, "called in 2 seconds\n"); //pc.printf("Button unpressed\r\n"); }; void at_command(){ int x; int ii; int jj; char num[10]; if (recieved == 1) { __disable_irq(); if (strcmp(a,"AT get all")==0) { // config_ram|config_rom|mode|status0|status1|status2|status3|status4|temp0|temp1|temp2|temp3|temp4 pc.printf("%u|%u|", eeprom_config_value, readEEPROMWord(0)); if (working_mode==3) { pc.printf("%d|%d|%d|%d|%d|%d|", working_mode, 0, 0, 0, 0, 0); pc.printf("%3.1f|%3.1f|%3.1f|%3.1f|%3.1f\r\n", simulated_temp[0], simulated_temp[1], simulated_temp[2], simulated_temp[3], simulated_temp[4]); } else { pc.printf("%d|%d|%d|%d|%d|%d|", working_mode, temp_error[0], temp_error[1], temp_error[2], temp_error[3], temp_error[4]); pc.printf("%3.1f|%3.1f|%3.1f|%3.1f|%3.1f\r\n", temp[0], temp[1], temp[2], temp[3], temp[4]); }; } else if (strcmp(a,"AT")==0) { pc.printf("OK\r\n"); } else if (strcmp(a,"AT get config")==0) { pc.printf("%u|%u\r\n", eeprom_config_value, readEEPROMWord(0)); } else if (strcmp(a,"AT get status")==0) { pc.printf("%d|%d|%d|%d|%d\r\n", temp_error[0], temp_error[1], temp_error[2], temp_error[3], temp_error[4]); } else if (strcmp(a,"AT get temp")==0) { pc.printf("%3.1f|%3.1f|%3.1f|%3.1f|%3.1f\r\n", temp[0], temp[1], temp[2], temp[3], temp[4]); } else if (strcmp(a,"AT get sim temp")==0) { pc.printf("%3.1f|%3.1f|%3.1f|%3.1f|%3.1f\r\n", simulated_temp[0], simulated_temp[1], simulated_temp[2], simulated_temp[3], simulated_temp[4]); } else if (strcmp(a,"AT get mode")==0) { pc.printf("%d\r\n", working_mode); } else if (strncmp(a,"AT set mode ",12) == 0) { x= (int)a[12] - 48; working_mode = ( x >= 0 && x <=5 ) ? x : working_mode; pc.printf("%d\r\n", working_mode); } else if (strncmp(a,"AT set sim temp ", 16) == 0) { // from a[16] "t0|t1|t2|t3|t4\0" ii = 16; for (int j=0; j<6; j++) { jj = 0; while ( a[ii]!='|' && a[ii]!='\0') { num[jj] = a[ii]; ii++; jj++; }; ii++; num[jj] = '\0'; simulated_temp[j] = (float)atol(num); }; pc.printf("%3.1f|%3.1f|%3.1f|%3.1f|%3.1f\r\n", simulated_temp[0], simulated_temp[1], simulated_temp[2], simulated_temp[3], simulated_temp[4] ); } else { pc.printf("Bad request\r\n"); }; __enable_irq(); // ready for new command recieved = 0; a[0] = '\0'; i = 0; }; }; int main() { confSysClock(); //Configure system clock (72MHz HSE clock, 48MHz USB clock) eeprom_config_value = get_temp_config_value(); wd.Configure(10.0); PinDetect pb(PA_11); pb.mode(PullUp); // Delay for initial pullup to take effect wait(.005); pb.attach_deasserted(&pb_hit_interrupt); pb.attach_asserted(&pb_out_interrupt); //pb.rise(&pb_out_interrupt); pb.setSampleFrequency(); pc.attach(&rxCallback, Serial::RxIrq); pc.baud(115200); pc.printf("\r\nNaumovich 2.0\r\n"); pomp_OFF = 0; heater_OFF = 0; wait(0.25); pomp_OFF = 1; heater_OFF = 1; wait(0.25); pomp_OFF = 0; heater_OFF = 0; wait(0.25); pomp_OFF = 1; heater_OFF = 1; wait(0.25); queue.call( start_temp ); queue.call_every(100, at_command); queue.call_every(2000, check_temp); queue.call_every(500, process_temp); // Start queue queue.dispatch(); };