//
// Initialize the oled screen
//
uint8_t ssd1306_Init(void)
{
// Wait for the screen to boot
HAL_Delay(100);
/* Init LCD */
ssd1306_WriteCommand(0xAE); //display off
ssd1306_WriteCommand(0x20); //Set Memory Addressing Mode
ssd1306_WriteCommand(0x10); //00,Horizontal Addressing Mode;01,Vertical Addressing Mode;10,Page Addressing Mode (RESET);11,Invalid
ssd1306_WriteCommand(0xB0); //Set Page Start Address for Page Addressing Mode,0-7
ssd1306_WriteCommand(0xC8); //Set COM Output Scan Direction
ssd1306_WriteCommand(0x00); //---set low column address
ssd1306_WriteCommand(0x10); //---set high column address
ssd1306_WriteCommand(0x40); //--set start line address
ssd1306_WriteCommand(0x81); //--set contrast control register
ssd1306_WriteCommand(0xFF);
ssd1306_WriteCommand(0xA1); //--set segment re-map 0 to 127
ssd1306_WriteCommand(0xA6); //--set normal display
ssd1306_WriteCommand(0xA8); //--set multiplex ratio(1 to 64)
ssd1306_WriteCommand(0x3F); //
ssd1306_WriteCommand(0xA4); //0xa4,Output follows RAM content;0xa5,Output ignores RAM content
ssd1306_WriteCommand(0xD3); //-set display offset
ssd1306_WriteCommand(0x00); //-not offset
ssd1306_WriteCommand(0xD5); //--set display clock divide ratio/oscillator frequency
ssd1306_WriteCommand(0xF0); //--set divide ratio
ssd1306_WriteCommand(0xD9); //--set pre-charge period
ssd1306_WriteCommand(0x22); //
ssd1306_WriteCommand(0xDA); //--set com pins hardware configuration
ssd1306_WriteCommand(0x12);
ssd1306_WriteCommand(0xDB); //--set vcomh
ssd1306_WriteCommand(0x20); //0x20,0.77xVcc
ssd1306_WriteCommand(0x8D); //--set DC-DC enable
ssd1306_WriteCommand(0x14); //
ssd1306_WriteCommand(0xAF); //--turn on SSD1306 panel
// Clear screen
ssd1306_Fill(Black);
// Flush buffer to screen
ssd1306_UpdateScreen();
// Set default values for screen object
SSD1306.CurrentX = 0;
SSD1306.CurrentY = 0;
SSD1306.Initialized = 1;
return 1;
}
/**
* @brief The application entry point.
*
* @retval None
*/
int main(void)
{
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */
/* MCU Configuration----------------------------------------------------------*/
/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
HAL_Init();
/* USER CODE BEGIN Init */
/* USER CODE END Init */
/* Configure the system clock */
SystemClock_Config();
/* USER CODE BEGIN SysInit */
/* USER CODE END SysInit */
/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_I2C1_Init();
MX_TIM3_Init();
//MX_IWDG_Init();
MX_TIM14_Init();
MX_TIM16_Init();
MX_TIM17_Init();
/* USER CODE BEGIN 2 */
HAL_TIM_Encoder_Start(&htim3, TIM_CHANNEL_ALL);
HAL_NVIC_SetPriority(TIM3_IRQn, 0, 0);
HAL_NVIC_EnableIRQ(TIM3_IRQn);
HAL_TIM_Base_Start_IT(&htim3);
// Seconds Counter startup duty
HAL_TIM_Base_Start_IT(&htim14);
HAL_TIM_Base_Stop_IT(&htim14);
HAL_TIM_Base_Start_IT(&htim16);
HAL_TIM_Base_Start_IT(&htim17);
HAL_GPIO_WritePin(GPIOA, LED_RED_PIN, GPIO_PIN_RESET);
ssd1306_Init();
current_cursor = exposition;
/* USER CODE END 2 */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
//HAL_IWDG_Refresh(&hiwdg);
if(__HAL_RCC_GET_SYSCLK_SOURCE() == RCC_SYSCLKSOURCE_STATUS_HSE) HAL_GPIO_WritePin(GPIOA, LED_GREEN_PIN, GPIO_PIN_SET);
else HAL_GPIO_WritePin(GPIOA, LED_GREEN_PIN, GPIO_PIN_RESET);
if (update_screen_flag)
{
ssd1306_Fill(Black);
ssd1306_UpdateScreen();
update_screen_flag = 0;
}
if (seconds_counter > STOP_TIME_SEC) //if more than 10 s need to stop
{
// Entering STOP Mode Procedure
seconds_counter = 0;
GPIO_InitTypeDef GPIO_InitStruct;
ssd1306_WriteCommand(0xAE); // OLED Off
GPIO_InitStruct.Pin = ENC_BUTTON_PIN;
GPIO_InitStruct.Mode = GPIO_MODE_EVT_RISING_FALLING;
GPIO_InitStruct.Pull = GPIO_PULLDOWN;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
HAL_NVIC_SetPriority(EXTI4_15_IRQn, 0, 0);
HAL_NVIC_EnableIRQ(EXTI4_15_IRQn);
HAL_GPIO_WritePin(GPIOA, LED_GREEN_PIN|LED_RED_PIN|GATE_PIN|FOCUS_PIN, GPIO_PIN_RESET);
HAL_PWR_EnterSTOPMode(PWR_LOWPOWERREGULATOR_ON, PWR_STOPENTRY_WFE);
// Exit from STOP Mode procedure
SystemClock_Config();
ssd1306_WriteCommand(0xAF); // OLED On
GPIO_InitStruct.Pin = ENC_BUTTON_PIN;
GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
GPIO_InitStruct.Pull = GPIO_PULLDOWN;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
current_state = menu_navigation;
}
Menu();
if (current_state == running_timer || current_state == running_interval)
{
if(gate_flag)
{
// Reset Gate & Focus
HAL_GPIO_WritePin(GPIOA, FOCUS_PIN, GPIO_PIN_RESET);
HAL_GPIO_WritePin(GPIOA, GATE_PIN, GPIO_PIN_RESET);
HAL_TIM_Base_Stop_IT(&htim14);
HAL_Delay(500);
__HAL_TIM_SET_COUNTER(&htim14, 0);
HAL_TIM_Base_Start_IT(&htim14);
gate_flag = 0;
// If not last shot, go to Interval state
if(tmp_num_shots != 0)
{
tmp_int_minutes = set_int_minutes;
tmp_int_sec = set_int_sec;
tmp_exp_minutes = set_exp_minutes;
tmp_exp_sec = set_exp_sec;
current_state = running_interval;
HAL_GPIO_WritePin(GPIOA, LED_RED_PIN,GPIO_PIN_RESET); // 1s LED Off
}
else
{
HAL_TIM_Base_Stop_IT(&htim14);
__HAL_TIM_SET_COUNTER(&htim14, 0);
HAL_GPIO_WritePin(GPIOA, LED_RED_PIN,GPIO_PIN_RESET); // 1s LED Off
tmp_exp_minutes = set_exp_minutes;
tmp_exp_sec = set_exp_sec;
current_state = menu_navigation;
update_screen_flag = 1;
}
}
}
if (exiting_run)
{
HAL_TIM_Base_Stop_IT(&htim16);
HAL_Delay(1000);
exiting_run = 0;
HAL_TIM_Base_Start_IT(&htim16);
HAL_GPIO_WritePin(GPIOA, FOCUS_PIN, GPIO_PIN_RESET);
HAL_GPIO_WritePin(GPIOA, GATE_PIN, GPIO_PIN_RESET);
}
}
/* USER CODE END 3 */
}