@@ -22,48 +22,49 @@ extern __IO uint32_t length ;
uint8_t Send_Buffer[64];
uint32_t packet_sent=1;
uint32_t packet_receive=1;
// Globalish setting vars
uint8_t boottobrew = 0;
uint16_t windup_guard = 1;
uint16_t k_p = 1;
uint16_t k_i = 1;
uint16_t k_d = 1;
// ISR ticks var
volatile uint32_t ticks = 0;
int16_t setpoint_brew = 0;
int16_t setpoint_steam = 0;
// State definition
enum state {
STATE_IDLE = 0,
STATE_SETP,
STATE_SETI,
STATE_SETD,
STATE_SETSTEPS,
STATE_SETWINDUP,
STATE_SETBOOTTOBREW,
STATE_PREHEAT_BREW,
STATE_MAINTAIN_BREW,
STATE_PREHEAT_STEAM,
STATE_MAINTAIN_STEAM,
};
uint8_t state = STATE_IDLE;
static __IO uint32_t TimingDelay;
// Move to header file
void process();
void machine();
void restore_settings();
void save_settings();
void save_setpoints();
int main(void)
{
// Init clocks
@@ -341,100 +342,52 @@ void restore_settings()
while(Minimal_FLASH_GetStatus()==FLASH_BUSY);
k_p = (*(__IO uint32_t*)(EEPROM_BASE_ADDR + EEPROM_ADDR_K_P));
k_i = (*(__IO uint32_t*)(EEPROM_BASE_ADDR + EEPROM_ADDR_K_I));
k_d = (*(__IO uint32_t*)(EEPROM_BASE_ADDR + EEPROM_ADDR_K_D));
setpoint_brew = (*(__IO uint32_t*)(EEPROM_BASE_ADDR + EEPROM_ADDR_BREWTEMP));
setpoint_steam = (*(__IO uint32_t*)(EEPROM_BASE_ADDR + EEPROM_ADDR_STEAMTEMP));
Minimal_EEPROM_Lock();
}
int16_t last_temp = 21245;
///////////////////////////////////////////////////////////////////////////////////////
/// freaking multiple setpoint support ///
uint8_t step_duration[10];
int16_t step_setpoint[10];
uint8_t step_duration[10] = {0,0,0,0,0,0,0,0,0,0};
int16_t step_setpoint[10] = {0,0,0,0,0,0,0,0,0,0};
uint8_t final_setpoint = 0;
void stepper_init()
int i;
for(i=0; i<10; i++)
step_duration[i] = 0;
step_setpoint[i] = 0;
void state_setstepper()
// Write text to OLED
// [ step #1:: Duration: ### ]
// [ Setpoint: ### ]
char tempstr[6];
itoa(stepnum, tempstr);
ssd1306_DrawString("Step #", 0, 0);
ssd1306_DrawString(tempstr, 0, 40);
ssd1306_DrawString("Duration: ", 0, 5);
itoa(step_duration[final_setpoint], tempstr);
ssd1306_DrawString(tempstr, 0, 70);
ssd1306_DrawString("Setpoint: ", 0, 0);
itoa(step_setpoint[final_setpoint], tempstr);
ssd1306_DrawString("Press to accept", 3, 40);
// Button handler - TODO: increment max_step if pressed
// return and go to next state otherwise
if(SW_BTN_PRESSED) {
state = STATE_SETSTEPPER;
final_setpoint++
else if(SW_LEFT_PRESSED) {
state++; // go to next state or something
else {
user_input(&k_p);
// Event Handler
// N/A
// Multiple screens to set setpoint and duration on each screen
// press center to go to the next one, and press left or right or something to confirm
// When executing, complete on time AND(?) temperature. Maybe allow switching to OR via settings
////////////////////////////////////////////////////////////////////////////////////////////////
void machine()
uint8_t last_state = state;
uint8_t temp_changed = temp != last_temp;
last_temp = temp;
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:
@@ -555,59 +508,98 @@ void machine()
} break;
case STATE_SETD:
// [ therm :: set d ]
// [ d = 12 ]
ssd1306_DrawString("Derivative", 0, 40);
ssd1306_drawlogo();
itoa(k_d, tempstr);
ssd1306_DrawString("D=", 1, 45);
ssd1306_DrawString(" ", 1, 57);
ssd1306_DrawString(tempstr, 1, 57);
// Button handler
state = STATE_SETWINDUP;
state = STATE_SETSTEPS;
user_input(&k_d);
case STATE_SETSTEPS:
itoa(final_setpoint, tempstr);
final_setpoint++;
// else if(SW_LEFT_PRESSED) {
// state++; // go to next state or something
// }
case STATE_SETWINDUP:
// [ therm :: set windup ]
// [ g = 12 ]
ssd1306_DrawString("Windup Guard", 0, 40);
itoa(windup_guard, tempstr);
ssd1306_DrawString("G=", 1, 45);
state = STATE_SETBOOTTOBREW;
user_input(&windup_guard);
Status change: