Testing keyboard poll

firmware/Core/Inc/inputs.h

@@ -0,0 +1,17 @@
+/*
+ * inputs.h
+ *
+ *  Created on: Oct 29, 2022
+ *      Author: mcfly
+ */
+
+#ifndef INC_INPUTS_H_
+#define INC_INPUTS_H_
+
+
+#include "stm32g0xx_hal.h"
+
+//Timers interrupts
+void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim);
+
+#endif /* INC_INPUTS_H_ */

firmware/Core/Src/inputs.c

@@ -0,0 +1,53 @@
+/*
+ * inputs.c
+ *
+ *  Created on: Oct 29, 2022
+ *      Author: mcfly
+ */
+#include "inputs.h"
+#include "st7789.h"
+
+#define BTNPRT				GPIOC
+#define ENCBTNPRT			BGIOB
+#define ENCBTNPRTMASK	0b11001000
+#define SCRBTNPRT			BGIOD
+#define SCRBTNPRTMASK	0b1110000
+
+void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim) {
+	static uint16_t btnbuff = 0xFFFF;
+	static uint16_t btnprev = 0xFFFF;
+	uint8_t	i;
+	uint16_t pin;
+	GPIO_TypeDef *port;
+
+	//check if the interrupt comes from TIM6
+	if(htim->Instance == TIM6) {
+		btnbuff = BTNPRT->IDR;
+		for (i=5; i>=2; i--) {
+			if ( !((btnbuff>>i) & 1) && ((btnprev>>i) & 1) ) {
+				switch (i) {
+					case 5:
+						port = CH1_EN_GPIO_Port;
+						pin  = CH1_EN_Pin;
+						break;
+					case 4:
+						port = CH2_EN_GPIO_Port;
+						pin  = CH2_EN_Pin;
+						break;
+					case 3:
+						port = PWM1_EN_GPIO_Port;
+						pin  = PWM1_EN_Pin;
+						break;
+					case 2:
+						port = PWM2_EN_GPIO_Port;
+						pin  = PWM2_EN_Pin;
+						break;
+				}
+				HAL_GPIO_TogglePin(port, pin);
+			}
+		}
+		btnprev = btnbuff;
+	}
+
+}
+

firmware/Core/Src/main.c

@@ -22,7 +22,7 @@
 /* Private includes ----------------------------------------------------------*/
 /* USER CODE BEGIN Includes */
 #include "st7789.h"
-
+#include "inputs.h"
 /* USER CODE END Includes */
 
 /* Private typedef -----------------------------------------------------------*/
@@ -110,6 +110,7 @@ int main(void)
   MX_USART3_UART_Init();
   /* USER CODE BEGIN 2 */
   ST7789_Init();
+  HAL_TIM_Base_Start_IT(&htim6);
 
   /* USER CODE END 2 */
 
@@ -324,7 +325,7 @@ static void MX_TIM6_Init(void)
   htim6.Init.Prescaler = 64-1;
   htim6.Init.CounterMode = TIM_COUNTERMODE_UP;
   htim6.Init.Period = 10000;
-  htim6.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;
+  htim6.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_ENABLE;
   if (HAL_TIM_Base_Init(&htim6) != HAL_OK)
   {
     Error_Handler();