therm Changeset - 425d70b8073e · protofusion repositories

Changeset - 425d70b8073e

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Merge cortex-f0

0 3 0

Ethan Zonca - 10 years ago 2015-01-02 23:41:03
ez@ethanzonca.com

Merge in multiple setpoints, fahrenheit support, tc error page to f0 branch

3 files changed with 156 insertions and 10 deletions:

Makefile

eeprom_min.h

main.c

153

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Makefile

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@@ @@ -85,7 +85,7 @@ CDEFS+=-DHSE_VALUE=8000000 @@
 #EMZ Optimized:
-MCUFLAGS=-mcpu=cortex-m3 -mthumb -ffunction-sections -fdata-sections
+MCUFLAGS=-mcpu=cortex-m3 -mthumb -ffunction-sections -fdata-sections -mfloat-abi=soft
 # Default:  MCUFLAGS=-mcpu=cortex-m3 -mthumb -ffunction-sections -fdata-sections

eeprom_min.h

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@@ @@ -13,6 +13,8 @@ @@
 #define EEPROM_ADDR_BREWTEMP		0x0030
 #define EEPROM_ADDR_STEAMTEMP		0x0034
 #define EEPROM_ADDR_UNITS		0x0038
 void Minimal_EEPROM_Unlock(void);
 void Minimal_EEPROM_Lock(void);

main.c

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@@ @@ -23,13 +23,21 @@ uint8_t Send_Buffer[64]; @@
 uint32_t packet_sent=1;
 uint32_t packet_receive=1;
 enum tempunits {
     TEMP_UNITS_CELSIUS = 0,
     TEMP_UNITS_FAHRENHEIT,
 };
 // Globalish setting vars
 uint8_t boottobrew = 0;
 uint8_t temp_units = TEMP_UNITS_CELSIUS;
 uint16_t windup_guard = 1;
 uint16_t k_p = 1;
 uint16_t k_i = 1;
 uint16_t k_d = 1;
 uint8_t ignore_tc_error  = 0;
 // ISR ticks var
 volatile uint32_t ticks = 0;
@@ @@ -43,13 +51,17 @@ enum state { @@
     STATE_SETP,
     STATE_SETI,
     STATE_SETD,
     STATE_SETSTEPS,
     STATE_SETWINDUP,
     STATE_SETBOOTTOBREW,
     STATE_SETUNITS,
     STATE_PREHEAT_BREW,
     STATE_MAINTAIN_BREW,
     STATE_PREHEAT_STEAM,
     STATE_MAINTAIN_STEAM,
     STATE_TC_ERROR
 };
 uint8_t state = STATE_IDLE;
@@ @@ -130,8 +142,9 @@ int main(void) @@
+}
 // Read temperature and update global temp vars
-int16_t temp = 0;
+int32_t temp = 0;
 uint8_t temp_frac = 0;
 uint8_t state_resume = 0;
 void update_temp() {
     // Assert CS
@@ @@ -144,15 +157,23 @@ void update_temp() { @@
     uint16_t temp_pre = SPI_I2S_ReceiveData(SPI2);
     if(temp_pre & 0b0000000000000010) {
         ssd1306_DrawString("Fatal Error", 2, 35);
         ssd1306_DrawString("Fatal Error", 3, 35);
         state = STATE_TC_ERROR;
+    }
     else if(temp_pre & 0b0000000000000001) {
         ssd1306_DrawString("Error: No TC", 2, 40);
     else if(temp_pre & 0b0000000000000001 && !ignore_tc_error) {
         state_resume = state;
         state = STATE_TC_ERROR;
         temp = 0;
         temp_frac = 0;
+    }
     else
+    {
         if(state == STATE_TC_ERROR)
+        {
             state = state_resume;
             ssd1306_clearscreen();
+        }
         uint8_t sign = temp >> 15;// top bit is sign
         temp_pre = temp_pre >> 2; // Drop 2 lowest bits
@@ @@ -166,6 +187,18 @@ void update_temp() { @@
         else {
             temp = temp_pre;
+        }
         if(temp_units == TEMP_UNITS_FAHRENHEIT) {
             temp *= 9; // fixed point mul by 1.8
             temp /= 5;
             temp += 32;
             temp_frac *= 9;
             temp_frac /= 5;
             temp_frac += 32;
             temp += temp_frac/100; // add overflow to above
             temp_frac %= 100;
+        }
+    }
     // Deassert CS
@@ @@ -316,6 +349,7 @@ void save_settings() @@
     Minimal_EEPROM_ProgramWord(EEPROM_BASE_ADDR + EEPROM_ADDR_K_P, k_p);
     Minimal_EEPROM_ProgramWord(EEPROM_BASE_ADDR + EEPROM_ADDR_K_I, k_i);
     Minimal_EEPROM_ProgramWord(EEPROM_BASE_ADDR + EEPROM_ADDR_K_D, k_d);
     Minimal_EEPROM_ProgramWord(EEPROM_BASE_ADDR + EEPROM_ADDR_UNITS, temp_units);
     Minimal_EEPROM_Lock();
+}
@@ @@ -353,12 +387,28 @@ void restore_settings() @@
     while(Minimal_FLASH_GetStatus()==FLASH_BUSY);
     setpoint_steam = (*(__IO uint32_t*)(EEPROM_BASE_ADDR + EEPROM_ADDR_STEAMTEMP));
     while(Minimal_FLASH_GetStatus()==FLASH_BUSY);
     temp_units = (*(__IO uint32_t*)(EEPROM_BASE_ADDR + EEPROM_ADDR_UNITS));
     Minimal_EEPROM_Lock();
+}
 int16_t last_temp = 21245;
 ///////////////////////////////////////////////////////////////////////////////////////
 /// freaking multiple setpoint support ///
 uint8_t step_duration[10] = {0,0,0,0,0,0,0,0,0,0};
 int16_t step_setpoint[10] = {0,0,0,0,0,0,0,0,0,0};
 uint8_t final_setpoint = 0;
 // Multiple screens to set setpoint and duration on each screen
 // press center to go to the next one, and press left or right or something to confirm
 // When executing, complete on time AND(?) temperature. Maybe allow switching to OR via settings
 ////////////////////////////////////////////////////////////////////////////////////////////////
 void machine()
+{
     uint8_t last_state = state;
@@ @@ -395,7 +445,7 @@ void machine() @@
             switch(goto_mode) {
                 case 2:
+                {
-                    ssd1306_DrawString("-> brew     ", 1, 40);
+                    ssd1306_DrawString("-> heat     ", 1, 40);
                 } break;
                 case 1:
@@ @@ -525,6 +575,45 @@ void machine() @@
         } break;
         case STATE_SETSTEPS:
+        {
             // Write text to OLED
             // [ step #1:: Duration: ### ]
             // [           Setpoint: ### ]
             char tempstr[6];
             itoa(final_setpoint, tempstr);
             ssd1306_DrawString("Step #", 0, 0);
             ssd1306_DrawString(tempstr, 0, 40);
             ssd1306_DrawString("Duration: ", 0, 5);
             itoa(step_duration[final_setpoint], tempstr);
             ssd1306_DrawString(tempstr, 0, 70);
             ssd1306_DrawString("Setpoint: ", 0, 0);
             itoa(step_setpoint[final_setpoint], tempstr);
             ssd1306_DrawString(tempstr, 0, 70);
             ssd1306_DrawString("Press to accept", 3, 40);
             // Button handler - TODO: increment max_step if pressed
             // return and go to next state otherwise
             if(SW_BTN_PRESSED) {
                 state = STATE_SETSTEPS;
                 final_setpoint++;
+            }
         //    else if(SW_LEFT_PRESSED) {
         //        state++; // go to next state or something
         //    }
             else {
                 user_input(&k_p);
+            }
             // Event Handler
             // N/A
         } break;
         case STATE_SETWINDUP:
+        {
             // Write text to OLED
@@ @@ -559,10 +648,10 @@ void machine() @@
             // Write text to OLED
             // [ therm :: set windup ]
             // [ g = 12         ]
-            ssd1306_DrawString("Boot to Brew", 0, 40);
+            ssd1306_DrawString("Start on Boot", 0, 40);
             ssd1306_drawlogo();
-            ssd1306_DrawString("btb=", 1, 45);
+            ssd1306_DrawString("sob=", 1, 45);
             if(boottobrew)
                 ssd1306_DrawString("Enabled ", 1, 70);
@@ @@ -573,8 +662,7 @@ void machine() @@
             // Button handler
             if(SW_BTN_PRESSED) {
                 save_settings();
                 state = STATE_IDLE;
                 state = STATE_SETUNITS;
+            }
             else if(!GPIO_ReadInputDataBit(SW_UP)) {
                 boottobrew = 1;
@@ @@ -588,6 +676,39 @@ void machine() @@
         } break;
         case STATE_SETUNITS:
+        {
             // Write text to OLED
             // [ therm :: set windup ]
             // [ g = 12         ]
             ssd1306_DrawString("Units: ", 0, 40);
             ssd1306_drawlogo();
             if(temp_units == TEMP_UNITS_FAHRENHEIT)
                 ssd1306_DrawString("Fahrenheit", 1, 60);
             else
                 ssd1306_DrawString("Celsius   ", 1, 60);
             ssd1306_DrawString("Press to accept", 3, 40);
             // Button handler
             if(SW_BTN_PRESSED) {
                 save_settings();
                 state = STATE_IDLE;
+            }
             else if(!GPIO_ReadInputDataBit(SW_UP)) {
                 temp_units = TEMP_UNITS_FAHRENHEIT;
+            }
             else if(!GPIO_ReadInputDataBit(SW_DOWN)) {
                 temp_units = TEMP_UNITS_CELSIUS;
+            }
             // Event Handler
             // N/A
         } break;
         case STATE_PREHEAT_BREW:
+        {
             // Write text to OLED
@@ @@ -692,6 +813,29 @@ void machine() @@
         } break;
         case STATE_TC_ERROR:
+        {
             // Write text to OLED
             // [ therm : ready to steam ]
             // [ 30 => 120 C            ]
             ssd1306_DrawString("Error:", 0, 0);
             ssd1306_DrawString("Connect thermocouple", 1, 0);
             ssd1306_DrawString("Press -> to ignore", 3, 0);
             // Button handler
             if(SW_BTN_PRESSED) {
                 state = STATE_IDLE;
+            }
             else if(SW_RIGHT_PRESSED) {
                 ignore_tc_error = 1;
                 state = STATE_IDLE;
+            }
             // Event Handler
             // Maybe handle if TC is plugged in
             // N/A
         } break;
         // Something is terribly wrong
         default:
+        {

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