@@ -23,15 +23,18 @@
#define SW_BTN GPIOB, GPIO_PIN_4
#define SW_UP GPIOB, GPIO_PIN_7
#define SW_DOWN GPIOB, GPIO_PIN_3
#define SW_LEFT GPIOB, GPIO_PIN_5
#define SW_RIGHT GPIOB, GPIO_PIN_6
#define SSR_PIN GPIOA, GPIO_PIN_1
// Visual niceness
#define hal_init() HAL_Init()
// Add bootloader option to top of idle screen menu
#define BOOTLOADER_SHORTCUT
#endif
// vim:softtabstop=4 shiftwidth=4 expandtab
@@ -26,24 +26,25 @@ static uint8_t sw_right_last = 0;
// Buttonpress macros
#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)
// States
static uint8_t trigger_drawsetpoint = 1;
static int16_t last_temp = 21245;
static uint8_t goto_mode = MODE_HEAT;
static uint8_t reset_mode = RESET_RESET;
// Display state machine
void display_process(therm_settings_t* set, therm_status_t* status)
{
uint8_t last_state = status->state;
uint8_t temp_changed = status->temp != last_temp;
last_temp = status->temp;
uint8_t sw_btn = !HAL_GPIO_ReadPin(SW_BTN);
@@ -64,69 +65,71 @@ void display_process(therm_settings_t* s
if(temp_changed) {
char tempstr[6];
itoa_fp(status->temp, status->temp_frac, tempstr);
ssd1306_drawstring("Temp: ", 3, 40);
ssd1306_drawstring(" ", 3, 72);
ssd1306_drawstring(tempstr, 3, 72);
}
ssd1306_drawlogo();
switch(goto_mode) {
case MODE_BOOTLOADER:
ssd1306_drawstring("-> loader ", 1, 40);
} break;
case MODE_HEAT:
ssd1306_drawstring("-> heat ", 1, 40);
case MODE_SETUP:
ssd1306_drawstring("-> setup ", 1, 40);
case MODE_RESET:
ssd1306_drawstring("-> reset ", 1, 40);
#ifdef BOOTLOADER_SHORTCUT
ssd1306_drawstring("-> dfu ", 1, 40);
// Button handler
if(SW_BTN_PRESSED) {
ssd1306_clearscreen();
ssd1306_drawstring("Bootloader Entered", 0, 0);
ssd1306_drawstring("Device won't boot", 2, 0);
ssd1306_drawstring("until reflashed!", 3, 0);
bootloader_enter(); // Resets into bootloader
status->state = STATE_IDLE; // Just in case
status->state = STATE_PREHEAT;
break;
status->state = STATE_SETP;
status->state = STATE_IDLE;
//flash_erase();
NVIC_SystemReset();
status->state = STATE_RESET;
reset_mode = RESET_RESET;
status->state = STATE_RESET; // Just in case
default:
else if(SW_DOWN_PRESSED && goto_mode < (MODE_SIZE - 1)) {
goto_mode++;
else if(SW_UP_PRESSED && goto_mode > 0) {
goto_mode--;
@@ -433,24 +436,88 @@ void display_process(therm_settings_t* s
else if(SW_RIGHT_PRESSED) {
set->val.ignore_error = 1;
// Event Handler
// Maybe handle if TC is plugged in
// N/A
// Reset state
case STATE_RESET:
// Write text to OLED
// [ therm :: reset ]
ssd1306_drawstring("therm :: reset ", 0, 40);
status->pid_enabled = 0;
switch(reset_mode) {
case RESET_RESET:
case RESET_BOOTLOADER:
ssd1306_drawstring("-> bootloader", 1, 40);
case RESET_EXIT:
ssd1306_drawstring("-> exit ", 1, 40);
HAL_Delay(1000);
else if(SW_DOWN_PRESSED && reset_mode < (RESET_SIZE-1)) {
reset_mode++;
else if(SW_UP_PRESSED && reset_mode > 0) {
reset_mode--;
// Something is terribly wrong
if(last_state != status->state) {
// Clear screen on state change
#ifndef STATES_H
#define STATES_H
#include "config.h"
typedef struct {
int32_t temp;
uint8_t temp_frac;
uint8_t state_resume;
uint8_t state;
int32_t setpoint;
uint8_t pid_enabled;
uint8_t error_code;
} therm_status_t;
typedef union
@@ -41,23 +43,33 @@ enum state {
STATE_SETI,
STATE_SETD,
STATE_SETSTEPS,
STATE_SETWINDUP,
STATE_SETBOOTTOBREW,
STATE_SETUNITS,
STATE_SETTEMPOFFSET,
STATE_PREHEAT,
STATE_MAINTAIN,
STATE_TC_ERROR,
STATE_RESET,
};
enum GOTO_MODE {
MODE_HEAT = 0,
MODE_BOOTLOADER,
MODE_HEAT,
MODE_SETUP,
MODE_RESET,
MODE_SIZE,
enum RESET_MODE {
RESET_RESET = 0,
RESET_BOOTLOADER,
RESET_EXIT,
RESET_SIZE,
Status change: