Andrew Klimenyuk
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)
Diff: temp_controller/temp_controller.cpp
- Revision:
- 39:aa5f95061409
- Parent:
- 38:a0753c2a4497
- Child:
- 40:6168609574d0
--- a/temp_controller/temp_controller.cpp Tue Sep 18 20:49:05 2018 +0000
+++ b/temp_controller/temp_controller.cpp Fri Sep 21 17:56:25 2018 +0000
@@ -3,6 +3,9 @@
extern Serial pc;
extern Watchdog wd;
extern DigitalOut myled;
+extern DigitalOut pomp_OFF;
+extern DigitalOut heater_OFF;
+
extern unsigned int eeprom_config_value;
#define MIN_MEBEL_TEMP 15
@@ -20,12 +23,29 @@
*/
float temp[5] = {
- 85,85,85,85,85 // initial temperature
+ // initial temperature is maximum
+ 85, // OUTDOOR
+ 85, // LITOS
+ 85, // MEBEL
+ 85, // HOT WATER
+ 85 // BACK WATER
+ };
+
+float simulated_temp[5] = {
+ // initial temperature for simulator
+ 7, // OUTDOOR
+ 10, // LITOS
+ 14, // MEBEL
+ 33, // HOT WATER
+ 18 // BACK WATER
};
int temp_error[5] = {
- 0,0,0,0,0 // initial state
- };
+ 1,1,1,1,1 // initial state is no sensors
+ // 0 - sensor present
+ // 1 - no sensor
+ // 2 - sensor CRC error
+ };
string labels[5] = {
"OUTDOOR",
@@ -36,13 +56,20 @@
};
DS1820 ds1820[5] = {
- DS1820(PA_9), // substitute PA_9 with actual mbed pin name connected to the OUTDOOR
- DS1820(PA_8), // substitute PA_8 with actual mbed pin name connected to the INDOOR LITOS
- DS1820(PA_7), // substitute PA_7 with actual mbed pin name connected to the INDOOR MEBEL
- DS1820(PA_6), // substitute PA_6 with actual mbed pin name connected to the HOT WATER
- DS1820(PA_5) // substitute PA_6 with actual mbed pin name connected to the HOT WATER
- };
+ DS1820(PA_9), // substitute PA_9 with actual mbed pin name connected to the OUTDOOR
+ DS1820(PA_8), // substitute PA_8 with actual mbed pin name connected to the INDOOR LITOS
+ DS1820(PA_7), // substitute PA_7 with actual mbed pin name connected to the INDOOR MEBEL
+ DS1820(PA_6), // substitute PA_6 with actual mbed pin name connected to the HOT WATER
+ DS1820(PA_5) // substitute PA_6 with actual mbed pin name connected to the HOT WATER
+ };
+unsigned char working_mode = 1; // default mode after powerup is ECO
+ // 0 - OFF - heating off, pomp and heater are OFF
+ // 1 - ECO - eco heating
+ // 2 - STANDART - standart heating
+ // 3 - SIMULATOR - simulator mode - work on simulated_temp
+ // 4 - POMP - pomp is ON, heater is OFF
+ // 5 - FULL - pomp and heater are ON
void start_temp(){
@@ -51,10 +78,10 @@
for ( int j=0; j < 5; j++ ) {
if(ds1820[j].begin()) {
ds1820[j].startConversion();
- pc.printf("%s sensor present!\r\n", labels[j].c_str());
- } else {
- pc.printf("No %s sensor found!\r\n", labels[j].c_str());
- };
+ //pc.printf("%s sensor present!\r\n", labels[j].c_str());
+ };// else {
+ //pc.printf("No %s sensor found!\r\n", labels[j].c_str());
+ //};
};
__enable_irq();
@@ -73,31 +100,28 @@
temp_error[j] = ds1820[j].read(temp[j]); // read temperature from DS1820 and perform cyclic redundancy check (CRC)
+ /*
switch(temp_error[j]) {
- case 0: // no errors -> 'temp' contains the value of measured temperature
- pc.printf("%s = %3.1fC \r\n", labels[j].c_str() , temp[j]);
- break;
- case 1: // no sensor present -> 'temp' is not updated
- pc.printf("no %s sensor present \r\n", labels[j].c_str() );
- break;
- case 2: // CRC error -> 'temp' is not updated
- pc.printf("%s sensor CRC error \r\n", labels[j].c_str() );
+ case 0: // no errors -> 'temp' contains the value of measured temperature
+ //pc.printf("%s = %3.1fC \r\n", labels[j].c_str() , temp[j]);
+ break;
+ case 1: // no sensor present -> 'temp' is not updated
+ //pc.printf("no %s sensor present \r\n", labels[j].c_str() );
+ break;
+ case 2: // CRC error -> 'temp' is not updated
+ //pc.printf("%s sensor CRC error \r\n", labels[j].c_str() );
+ default:
+
};
- // start temperature conversion from analog to digital
+ */
+ // start temperature conversion from analog to digital before next reading
ds1820[j].startConversion();
- };
-
- pc.printf("State %d|%d|%d|%d|%d\r\n", temp_error[0], temp_error[1], temp_error[2], temp_error[3], temp_error[4] );
- pc.printf("Temp %3.1f|%3.1f|%3.1f|%3.1f|%3.1f\r\n", temp[0], temp[1], temp[2], temp[3], temp[4] );
- pc.printf("RAM_config=%X, FLASH_config=%X\r\n", eeprom_config_value ,readEEPROMWord(0));
- pc.printf("=======================================");
+ };
// save new config if it was changed
if (readEEPROMWord(0)!= eeprom_config_value) {
- enableEEPROMWriting();
- writeEEPROMWord(0,eeprom_config_value);
- disableEEPROMWriting();
+ save_new_config();
};
@@ -107,6 +131,60 @@
myled = 1; // turn the LED off
};
+
+void process_temp() {
+ switch(working_mode) {
+ case 0:
+ // 0 - OFF - heating off, pomp and heater are OFF
+ pomp_OFF = 1;
+ heater_OFF = 1;
+ break;
+ case 1:
+ // 1 - ECO - eco heating
+ pc.printf("State %d|%d|%d|%d|%d\r\n", temp_error[0], temp_error[1], temp_error[2], temp_error[3], temp_error[4] );
+ pc.printf("Temp %3.1f|%3.1f|%3.1f|%3.1f|%3.1f\r\n", temp[0], temp[1], temp[2], temp[3], temp[4] );
+ pc.printf("RAM_config=%X, FLASH_config=%X\r\n", eeprom_config_value ,readEEPROMWord(0));
+ pc.printf("=======================================");
+ pomp_OFF = !pomp_OFF;
+ heater_OFF = !heater_OFF;
+ break;
+ case 2:
+ // 2 - STANDART - standart heating
+ pomp_OFF = 1;
+ heater_OFF = 1;
+ break;
+ case 3:
+ // 3 - SIMULATOR - simulator mode - work on simulated_temp
+ pomp_OFF = 1;
+ heater_OFF = 1;
+ break;
+ case 4:
+ // 4 - POMP - pomp is ON, heater is OFF
+ pomp_OFF = 0
+ heater_OFF = 1;
+ break;
+ case 5:
+ // 5 - FULL - pomp and heater are ON
+ pomp_OFF = 1;
+ heater_OFF = 1;
+ break;
+ default:
+ pomp_OFF = 1;
+ heater_OFF = 1;
+ };
+
+};
+
+
+void save_new_config() {
+
+ enableEEPROMWriting();
+ writeEEPROMWord(0,eeprom_config_value);
+ disableEEPROMWriting();
+
+};
+
+
unsigned int get_temp_config_value(){
unsigned int v = readEEPROMWord(0);