therm Changeset - 89a3a8b7b86f · protofusion repositories

Changeset - 89a3a8b7b86f

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Ethan Zonca - 10 years ago 2014-08-23 23:44:29
ez@ethanzonca.com

updated config interface

1 file changed with 4 insertions and 4 deletions:

main.c

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main.c

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@@ @@ -61,390 +61,390 @@ char* itoa_fp(int16_t i, uint8_t frac, c @@
         i *= -1;
+    }
     // Init shifter to numeric value
     uint16_t shifter = i;
     uint16_t frac_shifter = frac;
     // Iterate through 10s places, incrementing text pointer as we go
     do{
         ++p;
         shifter = shifter/10;
     }while(shifter);
     ++p; // increment for decimal point
     do{
         ++p;
         frac_shifter = frac_shifter/10;
     }while(frac_shifter);
     // Null-terminate the string
     *p = '\0';
     // Go backwards and write out fractional digits
     do{
         *--p = digit[frac%10];
         frac = frac/10;
     }while(frac);
     *--p = '.'; // insert decimal point
     // Go backwards and write out remaining digits
     do{
         *--p = digit[i%10];
         i = i/10;
     }while(i);
     return b;
+}
 static __IO uint32_t TimingDelay;
 // Move to header file
 void init_gpio();
 void init_spi();
 void process();
 void machine();
 int main(void)
+{
     // Init clocks
     SystemInit();
     init_gpio();
     // Init USB
     //Set_USBClock();
     //USB_Interrupts_Config();
     //USB_Init();
     GPIO_SetBits(LED_POWER);
     RCC_ClocksTypeDef RCC_Clocks;
     // SysTick end of count event each 1ms
     RCC_GetClocksFreq(&RCC_Clocks);
     SysTick_Config(RCC_Clocks.HCLK_Frequency / 1000);
     GPIO_ResetBits(LED_STAT);
     Delay(100);
     GPIO_SetBits(LED_POWER);
     Delay(500);
     GPIO_ResetBits(LED_POWER);
     init_spi();
     ssd1306_Init();
     ssd1306_block_write();
     ssd1306_DrawString("therm 0.1", 0, 40);
     uint8_t toggle = 0;
     int16_t temp = -231;
     while(1)
+    {
         //ssd1306_block_write();
         // Process sensor inputs [TODO: 5hz?]
         process();
         // Run state machine [TODO: 50hz?]
         machine();
         // probably just passed the actual port
         // TODO: Grab buttonpresses with interrupts
         //uint8_t sw_btn = GPIO_ReadInputDataBit(SW_BTN);
         //uint8_t sw_up = GPIO_ReadInputDataBit(SW_UP);
         //uint8_t sw_down = GPIO_ReadInputDataBit(SW_DOWN);
         //uint8_t sw_left = GPIO_ReadInputDataBit(SW_LEFT);
         //uint8_t sw_right = GPIO_ReadInputDataBit(SW_RIGHT);
         GPIO_SetBits(LED_POWER);
         Delay(50);
         GPIO_ResetBits(LED_POWER);
         Delay(50);
+    }
+}
 // Read temperature and update global temp vars
 int16_t temp = 0;
 uint8_t temp_frac = 0;
 void update_temp() {
     // Assert CS
     GPIO_ResetBits(MAX_CS);
     Delay(1);
     // This may not clock at all... might need to send 16 bits first
     SPI_I2S_SendData(SPI2, 0xAAAA); // send dummy data
     //SPI_I2S_SendData(SPI2, 0xAA); // send dummy data
     uint16_t temp_pre = SPI_I2S_ReceiveData(SPI2);
     if(temp_pre & 0b0000000000000010) {
         ssd1306_DrawString("Fatal Error", 3, 35);
+    }
     else if(temp_pre & 0b0000000000000001) {
         ssd1306_DrawString("TC Fault", 3, 35);
+    }
     uint8_t sign = temp >> 15;// top bit is sign
     temp_pre = temp_pre >> 2; // Drop 2 lowest bits
     temp_frac = temp_pre & 0b11; // get fractional part
     temp_frac *= 25; // each bit is .25 a degree, up to fixed point
     temp_pre = temp_pre >> 2; // Drop 2 fractional bits
     if(sign) {
         temp = -temp_pre;
+    }
     else {
         temp = temp_pre;
+    }
     // Deassert CS
     Delay(1);
     GPIO_SetBits(MAX_CS);
+}
 int32_t setpoint = 0;
 uint16_t k_p = 1;
 uint16_t k_i = 1;
 uint16_t k_d = 1;
 // Process things
 void process()
+{
     update_temp(); // Read MAX31855
     // TODO: Add calibration offset (linear)
     // Perform PID calculations
     //if(
     GPIO_SetBits(LED_STAT);
     // Write output to SSR
+}
 enum state {
     STATE_IDLE = 0,
     STATE_SETP,
     STATE_SETI,
     STATE_SETD,
     STATE_PREHEAT_BREW,
     STATE_MAINTAIN_BREW,
     STATE_PREHEAT_STEAM,
     STATE_MAINTAIN_STEAM,
 };
 void draw_setpoint() {
     char tempstr[3];
     itoa_fp(temp, temp_frac, tempstr);
     ssd1306_DrawString("    ", 3, 40);
+    //ssd1306_DrawString("        ", 3, 40);
     ssd1306_DrawString(tempstr, 3, 40);
-    ssd1306_DrawString("-> ", 3, 40);
+    ssd1306_DrawString("-> ", 3, 80);
     itoa(setpoint, tempstr);
     ssd1306_DrawString("    ", 3, 70);
     ssd1306_DrawString(tempstr, 3, 70);
     ssd1306_DrawString("    ", 3, 95);
     ssd1306_DrawString(tempstr, 3, 95);
+}
 uint8_t state = STATE_IDLE;
 uint8_t goto_mode = 2;
 // State machine
 void machine()
+{
     uint8_t last_state = state;
     switch(state)
+    {
         // Idle state
         case STATE_IDLE:
+        {
             // Write text to OLED
             // [ therm :: idle ]
             ssd1306_DrawString("therm :: idle ", 0, 40);
             char tempstr[6];
             itoa_fp(temp, temp_frac, tempstr);
             ssd1306_DrawString("Temp: ", 3, 40);
             ssd1306_DrawString("    ", 3, 70);
             ssd1306_DrawString(tempstr, 3, 72);
             ssd1306_drawlogo();
             switch(goto_mode) {
                 case 2:
+                {
                     ssd1306_DrawString("-> brew     ", 1, 40);
                 } break;
                 case 1:
+                {
                     ssd1306_DrawString("-> set P/I/D", 1, 40);
                 } break;
                 case 0:
+                {
                     ssd1306_DrawString("-> setup    ", 1, 40);
                 } break;
+            }
             // Button handler
             if(!GPIO_ReadInputDataBit(SW_BTN)) {
                 switch(goto_mode) {
                     case 2:
                         state = STATE_PREHEAT_BREW;
                         break;
                     case 1:
                         state = STATE_SETP;
                         break;
                     case 0:
                         state = STATE_SETP;
                         break;
                     default:
                         state = STATE_PREHEAT_BREW;
+                }
+            }
             else if(!GPIO_ReadInputDataBit(SW_UP) && goto_mode < 2) {
                 goto_mode++;
+            }
             else if(!GPIO_ReadInputDataBit(SW_DOWN) && k_p > 0 && goto_mode > 0) {
                 goto_mode--;
+            }
             // Event Handler
             // N/A
         } break;
         case STATE_SETP:
+        {
             // Write text to OLED
             // [ therm :: set p ]
             // [ p = 12         ]
             ssd1306_DrawString("Proportional", 0, 40);
             char tempstr[6];
             itoa(k_p, tempstr);
             ssd1306_DrawString("P=", 1, 45);
             ssd1306_DrawString("    ", 1, 57);
             ssd1306_DrawString(tempstr, 1, 57);
             ssd1306_DrawString("Press to accept", 3, 40);
             // Button handler
             if(!GPIO_ReadInputDataBit(SW_BTN)) {
                 state = STATE_SETI;
+            }
             else if(!GPIO_ReadInputDataBit(SW_UP)) {
                 k_p++;
+            }
             else if(!GPIO_ReadInputDataBit(SW_DOWN) && k_p > 0) {
                 k_p--;
+            }
             // Event Handler
             // N/A
         } break;
         case STATE_SETI:
+        {
             // Write text to OLED
             // [ therm :: set i ]
             // [ i = 12         ]
             ssd1306_DrawString("Integral", 0, 40);
             char tempstr[6];
             itoa(k_i, tempstr);
             ssd1306_DrawString("I=", 1, 45);
             ssd1306_DrawString("    ", 1, 57);
             ssd1306_DrawString(tempstr, 1, 57);
             ssd1306_DrawString("Press to accept", 3, 40);
             // Button handler
             if(!GPIO_ReadInputDataBit(SW_BTN)) {
                 state = STATE_SETD;
+            }
             else if(!GPIO_ReadInputDataBit(SW_UP)) {
                 k_i++;
+            }
             else if(!GPIO_ReadInputDataBit(SW_DOWN) && k_i > 0) {
                 k_i--;
+            }
             // Event Handler
             // N/A
         } break;
         case STATE_SETD:
+        {
             // Write text to OLED
             // [ therm :: set d ]
             // [ d = 12         ]
             ssd1306_DrawString("Derivative", 0, 40);
             char tempstr[6];
             itoa(k_d, tempstr);
             ssd1306_DrawString("D=", 1, 45);
             ssd1306_DrawString("    ", 1, 57);
             ssd1306_DrawString(tempstr, 1, 57);
             ssd1306_DrawString("Press to accept", 3, 40);
             // Button handler
             if(!GPIO_ReadInputDataBit(SW_BTN)) {
                 state = STATE_IDLE;
+            }
             else if(!GPIO_ReadInputDataBit(SW_UP)) {
                 k_d++;
+            }
             else if(!GPIO_ReadInputDataBit(SW_DOWN) && k_d > 0) {
                 k_d--;
+            }
             // Event Handler
             // N/A
         } break;
         case STATE_PREHEAT_BREW:
+        {
             // Write text to OLED
             // [ therm : preheating brew ]
             // [ 30 => 120 C             ]
             ssd1306_DrawString("Preheating...", 0, 40);
             draw_setpoint();
             // Button handler
             if(!GPIO_ReadInputDataBit(SW_BTN)) {
                 state = STATE_IDLE;
+            }
             // Event Handler
             if(temp >= setpoint) {
                 state = STATE_MAINTAIN_BREW;
+            }
         } break;
         case STATE_MAINTAIN_BREW:
+        {

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