therm Changeset - 280a8ff82f9b · protofusion repositories

Changeset - 280a8ff82f9b

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Ethan Zonca - 10 years ago 2014-08-26 21:39:57
ez@ethanzonca.com

Added rising edge detection for some buttonpresses

1 file changed with 41 insertions and 10 deletions:

main.c

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main.c

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@@ @@ -145,12 +145,13 @@ uint32_t last_led = 0; @@
 int32_t setpoint = 0;
 uint16_t k_p = 1;
 uint16_t k_i = 1;
 uint16_t k_d = 1;
 uint8_t ssr_output = 0; // Duty cycle of ssr, 0 to SSR_PERIOD
 // Process things
 void process()
+{
     update_temp(); // Read MAX31855
     // TODO: Add calibration offset (linear)
@@ @@ -187,16 +188,34 @@ void draw_setpoint() { @@
+}
 uint8_t state = STATE_IDLE;
 uint8_t goto_mode = 2;
 // State machine
 uint8_t sw_btn_last = 0;
 uint8_t sw_up_last = 0;
 uint8_t sw_down_last = 0;
 uint8_t sw_left_last = 0;
 uint8_t sw_right_last = 0;
 #define SW_BTN_PRESSED (sw_btn_last == 0 && sw_btn == 1) // rising edge on buttonpress
 #define SW_UP_PRESSED (sw_up_last == 0 && sw_up == 1)
 #define SW_DOWN_PRESSED (sw_down_last == 0 && sw_down == 1)
 #define SW_LEFT_PRESSED (sw_left_last == 0 && sw_left == 1)
 #define SW_RIGHT_PRESSED (sw_right_last == 0 && sw_right == 1)
 void machine()
+{
     uint8_t last_state = state;
     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);
     switch(state)
+    {
         // Idle state
         case STATE_IDLE:
+        {
             // Write text to OLED
@@ @@ -226,13 +245,13 @@ void machine() @@
+                {
                     ssd1306_DrawString("-> setup    ", 1, 40);
                 } break;
+            }
             // Button handler
-            if(!GPIO_ReadInputDataBit(SW_BTN)) {
+            if(SW_BTN_PRESSED) {
                 switch(goto_mode) {
                     case 2:
                         state = STATE_PREHEAT_BREW;
                         break;
                     case 1:
                         state = STATE_SETP;
@@ @@ -241,16 +260,16 @@ void machine() @@
                         state = STATE_SETP;
                         break;
                     default:
                         state = STATE_PREHEAT_BREW;
+                }
+            }
-            else if(!GPIO_ReadInputDataBit(SW_UP) && goto_mode < 2) {
+            else if(SW_UP_PRESSED && goto_mode < 2) {
                 goto_mode++;
+            }
-            else if(!GPIO_ReadInputDataBit(SW_DOWN) && k_p > 0 && goto_mode > 0) {
+            else if(SW_DOWN_PRESSED && k_p > 0 && goto_mode > 0) {
                 goto_mode--;
+            }
             // Event Handler
             // N/A
@@ @@ -260,23 +279,24 @@ void machine() @@
         case STATE_SETP:
+        {
             // Write text to OLED
             // [ therm :: set p ]
             // [ p = 12         ]
             ssd1306_DrawString("Proportional", 0, 40);
             ssd1306_drawlogo();
             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)) {
+            if(SW_BTN_PRESSED) {
                 state = STATE_SETI;
+            }
             else if(!GPIO_ReadInputDataBit(SW_UP)) {
                 k_p++;
+            }
             else if(!GPIO_ReadInputDataBit(SW_DOWN) && k_p > 0) {
@@ @@ -291,23 +311,24 @@ void machine() @@
         case STATE_SETI:
+        {
             // Write text to OLED
             // [ therm :: set i ]
             // [ i = 12         ]
             ssd1306_DrawString("Integral", 0, 40);
             ssd1306_drawlogo();
             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)) {
+            if(SW_BTN_PRESSED) {
                 state = STATE_SETD;
+            }
             else if(!GPIO_ReadInputDataBit(SW_UP)) {
                 k_i++;
+            }
             else if(!GPIO_ReadInputDataBit(SW_DOWN) && k_i > 0) {
@@ @@ -323,23 +344,24 @@ void machine() @@
         case STATE_SETD:
+        {
             // Write text to OLED
             // [ therm :: set d ]
             // [ d = 12         ]
             ssd1306_DrawString("Derivative", 0, 40);
             ssd1306_drawlogo();
             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)) {
+            if(SW_BTN_PRESSED) {
                 state = STATE_IDLE;
+            }
             else if(!GPIO_ReadInputDataBit(SW_UP)) {
                 k_d++;
+            }
             else if(!GPIO_ReadInputDataBit(SW_DOWN) && k_d > 0) {
@@ @@ -354,16 +376,17 @@ void machine() @@
         case STATE_PREHEAT_BREW:
+        {
             // Write text to OLED
             // [ therm : preheating brew ]
             // [ 30 => 120 C             ]
             ssd1306_DrawString("Preheating...", 0, 40);
             ssd1306_drawlogo();
             draw_setpoint();
             // Button handler
-            if(!GPIO_ReadInputDataBit(SW_BTN)) {
+            if(SW_BTN_PRESSED) {
                 state = STATE_IDLE;
+            }
             else if(!GPIO_ReadInputDataBit(SW_UP)) {
                setpoint++;
+            }
             else if(!GPIO_ReadInputDataBit(SW_DOWN) && setpoint > 0) {
@@ @@ -381,16 +404,17 @@ void machine() @@
         case STATE_MAINTAIN_BREW:
+        {
             // Write text to OLED
             // [ therm : ready to brew ]
             // [ 30 => 120 C           ]
             ssd1306_DrawString("Ready to Brew!", 0, 40);
             ssd1306_drawlogo();
             draw_setpoint();
             // Button handler
-            if(!GPIO_ReadInputDataBit(SW_BTN)) {
+            if(SW_BTN_PRESSED) {
                 state = STATE_IDLE;
+            }
             else if(!GPIO_ReadInputDataBit(SW_UP)) {
                setpoint++;
+            }
             else if(!GPIO_ReadInputDataBit(SW_DOWN) && setpoint > 0) {
@@ @@ -406,16 +430,17 @@ void machine() @@
         case STATE_PREHEAT_STEAM:
+        {
             // Write text to OLED
             // [ therm : preheating steam ]
             // [ 30 => 120 C           ]
             ssd1306_DrawString("Preheating...", 0, 40);
             ssd1306_drawlogo();
             draw_setpoint();
             // Button handler
-            if(!GPIO_ReadInputDataBit(SW_BTN)) {
+            if(SW_BTN_PRESSED) {
                 state = STATE_IDLE;
+            }
             else if(!GPIO_ReadInputDataBit(SW_UP)) {
                setpoint++;
+            }
             else if(!GPIO_ReadInputDataBit(SW_DOWN) && setpoint > 0) {
@@ @@ -433,16 +458,17 @@ void machine() @@
         case STATE_MAINTAIN_STEAM:
+        {
             // Write text to OLED
             // [ therm : ready to steam ]
             // [ 30 => 120 C            ]
             ssd1306_DrawString("Ready to Steam!", 0, 40);
             ssd1306_drawlogo();
             draw_setpoint();
             // Button handler
-            if(!GPIO_ReadInputDataBit(SW_BTN)) {
+            if(SW_BTN_PRESSED) {
                 state = STATE_IDLE;
+            }
             else if(!GPIO_ReadInputDataBit(SW_UP)) {
                setpoint++;
+            }
             else if(!GPIO_ReadInputDataBit(SW_DOWN) && setpoint > 0) {
@@ @@ -465,12 +491,17 @@ void machine() @@
+    }
     if(last_state != state) {
         // Clear screen on state change
         ssd1306_clearscreen();
+    }
     sw_btn_last = sw_btn;
     sw_up_last = sw_up;
     sw_down_last = sw_down;
     sw_left_last = sw_left;
     sw_right_last = sw_right;
+}
 // Delay a number of systicks
 void delay(__IO uint32_t nTime)
+{

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