Changeset - 7e85f405b6d0
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Ethan Zonca - 10 years ago 2014-08-23 23:36:42
ez@ethanzonca.com
PID setting now more user friendly
1 file changed with 98 insertions and 17 deletions:
main.c
98
17
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main.c
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@@ -15,10 +15,10 @@
 
 
// TODO: Grab buttonpresses with interrupts
 
#define SW_BTN  GPIOB, GPIO_Pin_3
 
#define SW_UP   GPIOB, GPIO_Pin_7
 
#define SW_UP   GPIOB, GPIO_Pin_4
 
#define SW_DOWN GPIOB, GPIO_Pin_6
 
#define SW_LEFT GPIOB, GPIO_Pin_5
 
#define SW_RIGHT GPIOB, GPIO_Pin_4
 
#define SW_RIGHT GPIOB, GPIO_Pin_7
 
 
// USB Supporting Vars
 
extern __IO uint8_t Receive_Buffer[64];
 
@@ -213,9 +213,9 @@ void update_temp() {
 
 
 
int32_t setpoint = 0;
 
int32_t p = 1;
 
int32_t i = 1;
 
int32_t d = 1;
 
uint16_t k_p = 1;
 
uint16_t k_i = 1;
 
uint16_t k_d = 1;
 
 
 
// Process things
 
@@ -248,6 +248,7 @@ enum state {
 
 
 
uint8_t state = STATE_IDLE;
 
uint8_t goto_mode = 2;
 
 
// State machine
 
void machine()
 
@@ -263,17 +264,54 @@ void machine()
 
            // [ therm :: idle ]
 
            ssd1306_DrawString("therm :: idle ", 0, 40);
 
 
            ssd1306_drawlogo();
 
            char tempstr[9];
 
            char tempstr[5];
 
            itoa_fp(temp, temp_frac, tempstr);
 
            ssd1306_DrawString("Temp: ", 2, 40);
 
            ssd1306_DrawString("    ", 2, 70);
 
            ssd1306_DrawString(tempstr, 2, 72);
 
            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
 
@@ -285,12 +323,26 @@ void machine()
 
            // Write text to OLED
 
            // [ therm :: set p ]
 
            // [ p = 12         ]
 
            ssd1306_DrawString("therm :: set p", 0, 40);
 
            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
 
@@ -302,12 +354,27 @@ void machine()
 
            // Write text to OLED
 
            // [ therm :: set i ]
 
            // [ i = 12         ]
 
            ssd1306_DrawString("therm :: set i", 0, 40);
 
            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
 
@@ -319,12 +386,26 @@ void machine()
 
            // Write text to OLED
 
            // [ therm :: set d ]
 
            // [ d = 12         ]
 
            ssd1306_DrawString("therm :: set d", 0, 40);
 
            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
 
@@ -336,7 +417,7 @@ void machine()
 
            // Write text to OLED
 
            // [ therm : preheating brew ]
 
            // [ 30 => 120 C             ]
 
            ssd1306_DrawString("therm :: Bpreheat", 0, 40);
 
            ssd1306_DrawString("Preheating...", 0, 40);
 
 
            // Button handler
 
            if(!GPIO_ReadInputDataBit(SW_BTN)) {
 
@@ -355,7 +436,7 @@ void machine()
 
            // Write text to OLED
 
            // [ therm : ready to brew ]
 
            // [ 30 => 120 C           ]
 
            ssd1306_DrawString("therm :: Bready", 0, 40);
 
            ssd1306_DrawString("Ready to Brew!", 0, 40);
 
 
 
            // Button handler
 
@@ -373,7 +454,7 @@ void machine()
 
            // Write text to OLED
 
            // [ therm : preheating steam ]
 
            // [ 30 => 120 C           ]
 
            ssd1306_DrawString("therm :: Spreheat", 0, 40);
 
            ssd1306_DrawString("Preheating...", 0, 40);
 
 
            // Button handler
 
            if(!GPIO_ReadInputDataBit(SW_BTN)) {
 
@@ -392,7 +473,7 @@ void machine()
 
            // Write text to OLED
 
            // [ therm : ready to steam ]
 
            // [ 30 => 120 C            ]
 
            ssd1306_DrawString("therm :: Sready", 0, 40);
 
            ssd1306_DrawString("Ready to Steam!", 0, 40);
 
 
            // Button handler
 
            if(!GPIO_ReadInputDataBit(SW_BTN)) {
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