Changeset - 169432b428c7
[Not reviewed]
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0 1 0
Ethan Zonca - 10 years ago 2014-09-14 19:32:39
ez@ethanzonca.com
Added slowdown for value incrementing
1 file changed with 44 insertions and 48 deletions:
main.c
44
48
0 comments (0 inline, 0 general)
main.c
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@@ -26,12 +26,22 @@ uint8_t boottobrew = 0;
 
#define WINDUP_GUARD_GAIN 100
 
uint16_t windup_guard = WINDUP_GUARD_GAIN;
 
uint16_t k_p = 1;
 
uint16_t k_i = 1;
 
uint16_t k_d = 1;
 
 
// ISR ticks var TODO: Double check functionality after volatilazation... needed on ARM?
 
volatile uint32_t ticks = 0;
 
 
// Increase on each press, and increase at a fast rate after duration elapsed of continuously holding down... somehow...
 
uint32_t change_time_reset = 0;
 
#define CHANGE_PERIOD_MS 100
 
#define CHANGE_ELAPSED (ticks - change_time_reset) > CHANGE_PERIOD_MS
 
#define CHANGE_RESET change_time_reset = ticks
 
 
 
int16_t setpoint_brew = 0;
 
int16_t setpoint_steam = 0;
 
 
// State definition
 
enum state {
 
    STATE_IDLE = 0,
 
@@ -212,13 +222,12 @@ int16_t update_pid(uint16_t k_p, uint16_
 
  return result;
 
}
 
 
 
 
 
uint32_t ticks = 0;
 
uint32_t last_ssr_on = 0;
 
uint32_t last_led = 0;
 
int32_t setpoint = 0;
 
int16_t ssr_output = 0; // Duty cycle of ssr, 0 to SSR_PERIOD 
 
uint8_t pid_enabled = 0;
 
 
@@ -362,12 +371,30 @@ void restore_settings()
 
    while(FLASH_GetStatus()==FLASH_BUSY);
 
    setpoint_steam = (*(__IO uint32_t*)EEPROM_ADDR_STEAMTEMP);    
 
    
 
    DATA_EEPROM_Lock();
 
}
 
 
void user_input(uint16_t* to_modify)
 
{
 
    if(CHANGE_ELAPSED) {
 
 
        // TODO: Make function that takes reference to a var and increase/decreases it based on buttonpress
 
        if(!GPIO_ReadInputDataBit(SW_UP) ) {
 
            CHANGE_RESET;
 
            (*to_modify)++;
 
        }
 
        else if(!GPIO_ReadInputDataBit(SW_DOWN) && (*to_modify) > 0) {
 
            CHANGE_RESET;
 
            (*to_modify)--;
 
        }
 
 
    }
 
 
}
 
 
void machine()
 
{
 
    uint8_t last_state = state;
 
 
    uint8_t sw_btn = !GPIO_ReadInputDataBit(SW_BTN);
 
    uint8_t sw_up = !GPIO_ReadInputDataBit(SW_UP);
 
@@ -456,17 +483,14 @@ void machine()
 
            ssd1306_DrawString("Press to accept", 3, 40);
 
            
 
            // Button handler
 
            if(SW_BTN_PRESSED) {
 
                state = STATE_SETI;
 
            }
 
            else if(!GPIO_ReadInputDataBit(SW_UP)) {
 
                k_p++;
 
            }
 
            else if(!GPIO_ReadInputDataBit(SW_DOWN) && k_p > 0) {
 
                k_p--;
 
            else {
 
                user_input(&k_p);
 
            }
 
 
            // Event Handler
 
            // N/A
 
 
 
        } break;
 
@@ -488,19 +512,15 @@ void machine()
 
            ssd1306_DrawString("Press to accept", 3, 40);
 
            
 
            // Button handler
 
            if(SW_BTN_PRESSED) {
 
                state = STATE_SETD;
 
            }
 
            else if(!GPIO_ReadInputDataBit(SW_UP)) {
 
                k_i++;
 
            else {
 
                user_input(&k_i);
 
            }
 
            else if(!GPIO_ReadInputDataBit(SW_DOWN) && k_i > 0) {
 
                k_i--;
 
            }
 
 
 
            // Event Handler
 
            // N/A
 
 
 
        } break;
 
 
@@ -521,17 +541,14 @@ void machine()
 
            ssd1306_DrawString("Press to accept", 3, 40);
 
 
            // Button handler
 
            if(SW_BTN_PRESSED) {
 
                state = STATE_SETWINDUP;
 
            }
 
            else if(!GPIO_ReadInputDataBit(SW_UP)) {
 
                k_d++;
 
            }
 
            else if(!GPIO_ReadInputDataBit(SW_DOWN) && k_d > 0) {
 
                k_d--;
 
            else {
 
                user_input(&k_d);
 
            }
 
 
            // Event Handler
 
            // N/A
 
 
 
        } break;
 
@@ -553,17 +570,14 @@ void machine()
 
            ssd1306_DrawString("Press to accept", 3, 40);
 
 
            // Button handler
 
            if(SW_BTN_PRESSED) {
 
                state = STATE_SETBOOTTOBREW;
 
            }
 
            else if(!GPIO_ReadInputDataBit(SW_UP)) {
 
                windup_guard++;
 
            }
 
            else if(!GPIO_ReadInputDataBit(SW_DOWN) && windup_guard > 0) {
 
                windup_guard--;
 
            else {
 
                user_input(&windup_guard);
 
            }
 
 
            // Event Handler
 
            // N/A
 
 
 
        } break;
 
@@ -599,15 +613,12 @@ void machine()
 
 
            // Event Handler
 
            // N/A
 
 
 
        } break;
 
 
 
 
 
        case STATE_PREHEAT_BREW:
 
        {
 
            // Write text to OLED
 
            // [ therm : preheating brew ]
 
            // [ 30 => 120 C             ]
 
            ssd1306_DrawString("Preheating...", 0, 40);
 
@@ -618,19 +629,15 @@ void machine()
 
 
            // Button handler
 
            if(SW_BTN_PRESSED) {
 
		save_setpoints(); // TODO: Check for mod
 
                state = STATE_IDLE;
 
            }
 
            else if(!GPIO_ReadInputDataBit(SW_UP)) {
 
               setpoint_brew++; 
 
            else {
 
                user_input(&setpoint_brew);
 
            }
 
            else if(!GPIO_ReadInputDataBit(SW_DOWN) && setpoint_brew > 0) {
 
                setpoint_brew--;
 
            }
 
 
 
            // Event Handler
 
            if(temp >= setpoint) {
 
                state = STATE_MAINTAIN_BREW;
 
            }
 
 
 
@@ -649,19 +656,15 @@ void machine()
 
 
            // Button handler
 
            if(SW_BTN_PRESSED) {
 
		save_setpoints(); // TODO: Check for mod
 
                state = STATE_IDLE;
 
            }
 
            else if(!GPIO_ReadInputDataBit(SW_UP)) {
 
               setpoint_brew++; 
 
            else {
 
                user_input(&setpoint_brew);
 
            }
 
            else if(!GPIO_ReadInputDataBit(SW_DOWN) && setpoint_brew > 0) {
 
                setpoint_brew--;
 
            }
 
 
 
            // Event Handler
 
            // N/A
 
 
 
        } break;
 
 
@@ -678,17 +681,14 @@ void machine()
 
	    
 
            // Button handler
 
            if(SW_BTN_PRESSED) {
 
                state = STATE_IDLE;
 
		save_setpoints(); // TODO: Check for mod
 
            }
 
            else if(!GPIO_ReadInputDataBit(SW_UP)) {
 
               setpoint_steam++; 
 
            }
 
            else if(!GPIO_ReadInputDataBit(SW_DOWN) && setpoint_steam > 0) {
 
                setpoint_steam--;
 
            else {
 
                user_input(&setpoint_steam);
 
            }
 
 
            // Event Handler
 
            if(temp >= setpoint) {
 
                state = STATE_MAINTAIN_STEAM;
 
            }
 
@@ -708,19 +708,15 @@ void machine()
 
 
            // Button handler
 
            if(SW_BTN_PRESSED) {
 
                state = STATE_IDLE;
 
		save_setpoints(); // TODO: Check for mod
 
            }
 
            else if(!GPIO_ReadInputDataBit(SW_UP)) {
 
               setpoint_steam++; 
 
            else {
 
                user_input(&setpoint_steam);
 
            }
 
            else if(!GPIO_ReadInputDataBit(SW_DOWN) && setpoint_steam > 0) {
 
                setpoint_steam--;
 
            }
 
 
 
            // Event Handler
 
            // N/A
 
 
 
        } break;
 
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