UART added

Core/Inc/stm32f1xx_hal_conf.h

@@ -65,7 +65,7 @@
 /*#define HAL_SPI_MODULE_ENABLED   */
 /*#define HAL_SRAM_MODULE_ENABLED   */
 #define HAL_TIM_MODULE_ENABLED
-/*#define HAL_UART_MODULE_ENABLED   */
+#define HAL_UART_MODULE_ENABLED
 /*#define HAL_USART_MODULE_ENABLED   */
 /*#define HAL_WWDG_MODULE_ENABLED   */
 

Core/Inc/stm32f1xx_it.h

@@ -57,6 +57,7 @@ void PendSV_Handler(void);
 void SysTick_Handler(void);
 void DMA1_Channel5_IRQHandler(void);
 void TIM2_IRQHandler(void);
+void USART2_IRQHandler(void);
 /* USER CODE BEGIN EFP */
 
 /* USER CODE END EFP */

Core/Inc/usart.h

@@ -0,0 +1,52 @@
+/* USER CODE BEGIN Header */
+/**
+  ******************************************************************************
+  * @file    usart.h
+  * @brief   This file contains all the function prototypes for
+  *          the usart.c file
+  ******************************************************************************
+  * @attention
+  *
+  * Copyright (c) 2026 STMicroelectronics.
+  * All rights reserved.
+  *
+  * This software is licensed under terms that can be found in the LICENSE file
+  * in the root directory of this software component.
+  * If no LICENSE file comes with this software, it is provided AS-IS.
+  *
+  ******************************************************************************
+  */
+/* USER CODE END Header */
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef __USART_H__
+#define __USART_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Includes ------------------------------------------------------------------*/
+#include "main.h"
+
+/* USER CODE BEGIN Includes */
+
+/* USER CODE END Includes */
+
+extern UART_HandleTypeDef huart2;
+
+/* USER CODE BEGIN Private defines */
+
+/* USER CODE END Private defines */
+
+void MX_USART2_UART_Init(void);
+
+/* USER CODE BEGIN Prototypes */
+
+/* USER CODE END Prototypes */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __USART_H__ */
+

Core/Src/main.c

@@ -21,6 +21,7 @@
 #include "dma.h"
 #include "i2c.h"
 #include "tim.h"
+#include "usart.h"
 #include "gpio.h"
 
 /* Private includes ----------------------------------------------------------*/
@@ -94,6 +95,7 @@ int main(void)
   MX_DMA_Init();
   MX_TIM2_Init();
   MX_I2C1_Init();
+  MX_USART2_UART_Init();
   /* USER CODE BEGIN 2 */
 
   HAL_TIM_Base_Start(&htim2);
@@ -121,10 +123,10 @@ int main(void)
 
 
 
-#define EFFECT_TIME 500
+#define EFFECT_TIME 10000
 
 
-	ds1307_update(&my_rtc);
+	// ds1307_update(&my_rtc);
 
 	mytimer = HAL_GetTick();
 	while(mytimer + EFFECT_TIME > HAL_GetTick()){
@@ -144,7 +146,7 @@ int main(void)
 	}
 
 
-	//HAL_GPIO_TogglePin(LED_Green_GPIO_Port, LED_Green_Pin);
+	HAL_GPIO_TogglePin(LED_Green_GPIO_Port, LED_Green_Pin);
 
   }
   /* USER CODE END 3 */

Core/Src/stm32f1xx_it.c

@@ -57,6 +57,7 @@
 /* External variables --------------------------------------------------------*/
 extern DMA_HandleTypeDef hdma_tim2_ch1;
 extern TIM_HandleTypeDef htim2;
+extern UART_HandleTypeDef huart2;
 /* USER CODE BEGIN EV */
 
 /* USER CODE END EV */
@@ -227,6 +228,20 @@ void TIM2_IRQHandler(void)
   /* USER CODE END TIM2_IRQn 1 */
 }
 
+/**
+  * @brief This function handles USART2 global interrupt.
+  */
+void USART2_IRQHandler(void)
+{
+  /* USER CODE BEGIN USART2_IRQn 0 */
+
+  /* USER CODE END USART2_IRQn 0 */
+  HAL_UART_IRQHandler(&huart2);
+  /* USER CODE BEGIN USART2_IRQn 1 */
+
+  /* USER CODE END USART2_IRQn 1 */
+}
+
 /* USER CODE BEGIN 1 */
 
 /* USER CODE END 1 */

Core/Src/usart.c

@@ -0,0 +1,122 @@
+/* USER CODE BEGIN Header */
+/**
+  ******************************************************************************
+  * @file    usart.c
+  * @brief   This file provides code for the configuration
+  *          of the USART instances.
+  ******************************************************************************
+  * @attention
+  *
+  * Copyright (c) 2026 STMicroelectronics.
+  * All rights reserved.
+  *
+  * This software is licensed under terms that can be found in the LICENSE file
+  * in the root directory of this software component.
+  * If no LICENSE file comes with this software, it is provided AS-IS.
+  *
+  ******************************************************************************
+  */
+/* USER CODE END Header */
+/* Includes ------------------------------------------------------------------*/
+#include "usart.h"
+
+/* USER CODE BEGIN 0 */
+
+/* USER CODE END 0 */
+
+UART_HandleTypeDef huart2;
+
+/* USART2 init function */
+
+void MX_USART2_UART_Init(void)
+{
+
+  /* USER CODE BEGIN USART2_Init 0 */
+
+  /* USER CODE END USART2_Init 0 */
+
+  /* USER CODE BEGIN USART2_Init 1 */
+
+  /* USER CODE END USART2_Init 1 */
+  huart2.Instance = USART2;
+  huart2.Init.BaudRate = 115200;
+  huart2.Init.WordLength = UART_WORDLENGTH_8B;
+  huart2.Init.StopBits = UART_STOPBITS_1;
+  huart2.Init.Parity = UART_PARITY_NONE;
+  huart2.Init.Mode = UART_MODE_TX_RX;
+  huart2.Init.HwFlowCtl = UART_HWCONTROL_NONE;
+  huart2.Init.OverSampling = UART_OVERSAMPLING_16;
+  if (HAL_UART_Init(&huart2) != HAL_OK)
+  {
+    Error_Handler();
+  }
+  /* USER CODE BEGIN USART2_Init 2 */
+
+  /* USER CODE END USART2_Init 2 */
+
+}
+
+void HAL_UART_MspInit(UART_HandleTypeDef* uartHandle)
+{
+
+  GPIO_InitTypeDef GPIO_InitStruct = {0};
+  if(uartHandle->Instance==USART2)
+  {
+  /* USER CODE BEGIN USART2_MspInit 0 */
+
+  /* USER CODE END USART2_MspInit 0 */
+    /* USART2 clock enable */
+    __HAL_RCC_USART2_CLK_ENABLE();
+
+    __HAL_RCC_GPIOA_CLK_ENABLE();
+    /**USART2 GPIO Configuration
+    PA2     ------> USART2_TX
+    PA3     ------> USART2_RX
+    */
+    GPIO_InitStruct.Pin = GPIO_PIN_2;
+    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
+    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
+    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
+
+    GPIO_InitStruct.Pin = GPIO_PIN_3;
+    GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
+    GPIO_InitStruct.Pull = GPIO_NOPULL;
+    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
+
+    /* USART2 interrupt Init */
+    HAL_NVIC_SetPriority(USART2_IRQn, 0, 0);
+    HAL_NVIC_EnableIRQ(USART2_IRQn);
+  /* USER CODE BEGIN USART2_MspInit 1 */
+
+  /* USER CODE END USART2_MspInit 1 */
+  }
+}
+
+void HAL_UART_MspDeInit(UART_HandleTypeDef* uartHandle)
+{
+
+  if(uartHandle->Instance==USART2)
+  {
+  /* USER CODE BEGIN USART2_MspDeInit 0 */
+
+  /* USER CODE END USART2_MspDeInit 0 */
+    /* Peripheral clock disable */
+    __HAL_RCC_USART2_CLK_DISABLE();
+
+    /**USART2 GPIO Configuration
+    PA2     ------> USART2_TX
+    PA3     ------> USART2_RX
+    */
+    HAL_GPIO_DeInit(GPIOA, GPIO_PIN_2|GPIO_PIN_3);
+
+    /* USART2 interrupt Deinit */
+    HAL_NVIC_DisableIRQ(USART2_IRQn);
+  /* USER CODE BEGIN USART2_MspDeInit 1 */
+
+  /* USER CODE END USART2_MspDeInit 1 */
+  }
+}
+
+/* USER CODE BEGIN 1 */
+
+/* USER CODE END 1 */

Core/Src/ws2812_effect.c

@@ -12,6 +12,7 @@
 
 void ws_Effect_RoudTheClock(void){
 
+	#define RAND_MAX	25
 	uint8_t r = rand();
 	uint8_t g = rand();
 	uint8_t b = rand();
@@ -30,10 +31,12 @@ void ws_Effect_RoudTheClock(void){
 
 void ws_Effect_RandRound(void){
 
+	#define RAND_MAX	25
 	uint8_t r = rand();
 	uint8_t g = rand();
 	uint8_t b = rand();
 
+
 	for (uint8_t led = 0; led < 24; led++) {
 
 
@@ -46,7 +49,7 @@ void ws_Effect_RandRound(void){
 
 void ws_Effect_RandRand(void){
 
-	#define RAND_MAX	255
+	#define RAND_MAX	25
 	uint8_t r = rand();
 	uint8_t g = rand();
 	uint8_t b = rand();