therm Changeset - 7d17184d77c2 · protofusion repositories

Changeset - 7d17184d77c2

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Ethan Zonca - 10 years ago 2014-07-14 23:01:15
ez@ethanzonca.com

Initial state machine implementation

1 file changed with 196 insertions and 0 deletions:

main.c

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main.c

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 #include "main.h"
 #include "stm32l100c_discovery.h"
 #include "ssd1306.h"
 #define LED_POWER GPIOB,GPIO_Pin_9
 #define LED_STAT  GPIOA,GPIO_Pin_15
 // TODO: Grab buttonpresses with interrupts
 #define SW_BTN  GPIOB, GPIO_Pin_3
 #define SW_UP   GPIOB, GPIO_Pin_7
 #define SW_DOWN GPIOB, GPIO_Pin_6
 #define SW_LEFT GPIOB, GPIO_Pin_5
 #define SW_RIGHT GPIOB, GPIO_Pin_4
 static __IO uint32_t TimingDelay;
 void init_gpio();
 void init_spi();
 void process();
 void machine();
 int main(void)
+{
     // Init clocks
     SystemInit();
     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);
     init_gpio();
     ssd1306_Init();
     ssd1306_DrawPoint(3,3,1);
     ssd1306_DrawPoint(5,5,0);
     GPIO_SetBits(LED_POWER);
     Delay(500);
     GPIO_ResetBits(LED_POWER);
 RCC_APB2PeriphClockCmd(RCC_APB2Periph_SPI1, ENABLE);
     init_spi();
     while(1)
+   {
         // Process sensor inputs [TODO: 5hz?]
         process();
         // Run state machine [TODO: 50hz?]
         machine(); // this argument is sooo wrong
         // 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);
         SPI_I2S_SendData(SPI2,0xFA);
         SPI_I2S_SendData(SPI1,0xFA);
         if(!GPIO_ReadInputDataBit(GPIOB, GPIO_Pin_3)) {
             GPIO_ToggleBits(LED_STAT);
+        }
 //        ssd1306_DrawPoint(5,5,0);
         GPIO_SetBits(LED_POWER);
         Delay(150);
         GPIO_ResetBits(LED_POWER);
         Delay(150);
+    }
+}
 int32_t temp = 0;
 int32_t setpoint = 0;
 int32_t p = 1;
 int32_t i = 1;
 int32_t d = 1;
 // Process things
 void process()
+{
     // Read MAX temp sensor
     temp = 0;
     // Perform PID calculations
     // 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,
 };
 uint8_t state = STATE_IDLE;
 // State machine
 void machine()
+{
     switch(state)
+    {
         // Idle state
         case STATE_IDLE:
+        {
             // Write text to OLED
             // [ therm :: idle ]
             // Button handler
             if(GPIO_ReadInputDataBit(SW_BTN)) {
                 state = STATE_SETP;
+            }
             // Event Handler
             // N/A
         } break;
         case STATE_SETP:
+        {
             // Write text to OLED
             // [ therm :: set p ]
             // [ p = 12         ]
             // Button handler
             if(GPIO_ReadInputDataBit(SW_BTN)) {
                 state = STATE_IDLE;
+            }
             // Event Handler
             // N/A
         } break;
         case STATE_SETI:
+        {
             // Write text to OLED
             // [ therm :: set i ]
             // [ i = 12         ]
             // Button handler
             if(GPIO_ReadInputDataBit(SW_BTN)) {
                 state = STATE_IDLE;
+            }
             // Event Handler
             // N/A
         } break;
         case STATE_SETD:
+        {
             // Write text to OLED
             // [ therm :: set d ]
             // [ d = 12         ]
             // Button handler
             if(GPIO_ReadInputDataBit(SW_BTN)) {
                 state = STATE_IDLE;
+            }
             // Event Handler
             // N/A
         } break;
         case STATE_PREHEAT_BREW:
+        {
             // Write text to OLED
             // [ therm : preheating brew ]
             // [ 30 => 120 C             ]
             // Button handler
             if(GPIO_ReadInputDataBit(SW_BTN)) {
                 state = STATE_IDLE;
+            }
             // Event Handler
             if(temp >= setpoint) {
                 state = STATE_MAINTAIN_BREW;
+            }
         } break;
         case STATE_MAINTAIN_BREW:
+        {
             // Write text to OLED
             // [ therm : ready to brew ]
             // [ 30 => 120 C           ]
             // Button handler
             if(GPIO_ReadInputDataBit(SW_BTN)) {
                 state = STATE_IDLE;
+            }
             // Event Handler
             // N/A
         } break;
         case STATE_PREHEAT_STEAM:
+        {
             // Write text to OLED
             // [ therm : preheating steam ]
             // [ 30 => 120 C           ]
             // Button handler
             if(GPIO_ReadInputDataBit(SW_BTN)) {
                 state = STATE_IDLE;
+            }
             // Event Handler
             if(temp >= setpoint) {
                 state = STATE_MAINTAIN_STEAM;
+            }
         } break;
         case STATE_MAINTAIN_STEAM:
+        {
             // Write text to OLED
             // [ therm : ready to steam ]
             // [ 30 => 120 C            ]
             // Button handler
             if(GPIO_ReadInputDataBit(SW_BTN)) {
                 state = STATE_IDLE;
+            }
             // Event Handler
             // N/A
         } break;
         // Something is terribly wrong
         deault:
+        {
             state = STATE_IDLE;
         } break;
+    }
+}
 /**
   * @brief  Inserts a delay time.
   * @param  nTime: specifies the delay time length, in 1 ms.
   * @retval None
   */
 void Delay(__IO uint32_t nTime)
+{
   TimingDelay = nTime;
   while(TimingDelay != 0);
+}
 /**
   * @brief  Decrements the TimingDelay variable.
   * @param  None
   * @retval None
   */
 void TimingDelay_Decrement(void)
+{
   if (TimingDelay != 0x00)
+  {
     TimingDelay--;
+  }
+}

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