Description
I am using lvgl with stm32f469 diso gui is working well. But I am facing issue in USART operation. I had initialized UART but its is not working. Code build with no error but no result
What MCU/Processor/Board and compiler are you using?
stm32f469 disco
What LVGL version are you using?
6.12
What do you want to achieve?
USART interrupt operation for GPS module
What have you tried so far?
I had tried two uart 4 and 6, face same issue, But if i initialize separately with new cube project USART work fine.
Code to reproduce
Add a code snippet which can run in the simulator. It should contain only the relevant code that compiles without errors when separated from your main code base.
The code block(s) should be formatted like:
/**
******************************************************************************
* @file main.c
* @author Ac6
* @version V1.0
* @date 01-December-2013
* @brief Default main function.
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "USER/inc/main.h"
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
UART_HandleTypeDef huart4;
UART_HandleTypeDef huart6;
/* Private function prototypes -----------------------------------------------*/
static void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_USART6_UART_Init(void);
static void Error_Handler(void);
/* Private functions ---------------------------------------------------------*/
int main(void)
{
HAL_Init();
/* Configure the system clock to 180 MHz */
SystemClock_Config();
/* Add your application code here */
MX_GPIO_Init();
MX_USART6_UART_Init();
lv_init();
tft_init();
touchpad_init();
// HAL_GPIO_TogglePin(LED_STATUS_GPIO_Port, LED_STATUS_Pin);
// menu_splashscreen();
// menu_MachineInfo();
// menu_MainMenu();
while (1)
{
HAL_UART_Transmit(&huart6, "Hello\n", 6, 1000);
HAL_GPIO_TogglePin(LED_ACTIVE_GPIO_Port, LED_ACTIVE_Pin);
HAL_Delay(500);
// HAL_Delay(1);
// lv_task_handler();
}
}
/**
* @brief System Clock Configuration
* The system Clock is configured as follow :
* System Clock source = PLL (HSE)
* SYSCLK(Hz) = 180000000
* HCLK(Hz) = 180000000
* AHB Prescaler = 1
* APB1 Prescaler = 4
* APB2 Prescaler = 2
* HSE Frequency(Hz) = 8000000
* PLL_M = 8
* PLL_N = 360
* PLL_P = 2
* PLL_Q = 7
* PLL_R = 6
* VDD(V) = 3.3
* Main regulator output voltage = Scale1 mode
* Flash Latency(WS) = 5
* @param None
* @retval None
*/
static void SystemClock_Config(void)
{
RCC_ClkInitTypeDef RCC_ClkInitStruct;
RCC_OscInitTypeDef RCC_OscInitStruct;
/* Enable Power Control clock */
__HAL_RCC_PWR_CLK_ENABLE();
/* The voltage scaling allows optimizing the power consumption when the device is
clocked below the maximum system frequency, to update the voltage scaling value
regarding system frequency refer to product datasheet. */
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
/* Enable HSE Oscillator and activate PLL with HSE as source */
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
RCC_OscInitStruct.HSEState = RCC_HSE_ON;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
#if defined(USE_STM32469I_DISCO_REVA)
RCC_OscInitStruct.PLL.PLLM = 25;
#else
RCC_OscInitStruct.PLL.PLLM = 8;
#endif /* USE_STM32469I_DISCO_REVA */
RCC_OscInitStruct.PLL.PLLN = 360;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
RCC_OscInitStruct.PLL.PLLQ = 7;
RCC_OscInitStruct.PLL.PLLR = 6;
if(HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
/* Enable the OverDrive to reach the 180 Mhz Frequency */
if(HAL_PWREx_EnableOverDrive() != HAL_OK)
{
Error_Handler();
}
/* Select PLL as system clock source and configure the HCLK, PCLK1 and PCLK2
clocks dividers */
RCC_ClkInitStruct.ClockType = (RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2);
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV4;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2;
if(HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_5) != HAL_OK)
{
Error_Handler();
}
}
/**
* @brief GPIO Initialization Function
* @param None
* @retval None
*/
static void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOG_CLK_ENABLE();
__HAL_RCC_GPIOD_CLK_ENABLE();
__HAL_RCC_GPIOK_CLK_ENABLE();
__HAL_RCC_GPIOH_CLK_ENABLE();
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(LED_STATUS_GPIO_Port, LED_STATUS_Pin, GPIO_PIN_SET);
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(LED_ACTIVE_GPIO_Port, LED_ACTIVE_Pin, GPIO_PIN_SET);
/*Configure GPIO pin : LED_STATUS_Pin */
GPIO_InitStruct.Pin = LED_STATUS_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(LED_STATUS_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pin : LED_ACTIVE_Pin */
GPIO_InitStruct.Pin = LED_ACTIVE_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(LED_ACTIVE_GPIO_Port, &GPIO_InitStruct);
}
/**
* @brief USART6 Initialization Function
* @param None
* @retval None
*/
static void MX_USART6_UART_Init(void)
{
/* USER CODE BEGIN USART6_Init 0 */
/* USER CODE END USART6_Init 0 */
/* USER CODE BEGIN USART6_Init 1 */
/* USER CODE END USART6_Init 1 */
huart6.Instance = USART6;
huart6.Init.BaudRate = 9600;
huart6.Init.WordLength = UART_WORDLENGTH_8B;
huart6.Init.StopBits = UART_STOPBITS_1;
huart6.Init.Parity = UART_PARITY_NONE;
huart6.Init.Mode = UART_MODE_TX_RX;
huart6.Init.HwFlowCtl = UART_HWCONTROL_NONE;
huart6.Init.OverSampling = UART_OVERSAMPLING_16;
if (HAL_UART_Init(&huart6) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN USART6_Init 2 */
/* USER CODE END USART6_Init 2 */
}
/**
* @brief This function is executed in case of error occurrence.
* @param None
* @retval None
*/
static void Error_Handler(void)
{
/* User may add here some code to deal with this error */
while(1)
{
HAL_GPIO_TogglePin(LED_STATUS_GPIO_Port, LED_STATUS_Pin);
HAL_Delay(500);
}
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t* file, uint32_t line)
{
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* Infinite loop */
while (1)
{
}
}
#endif
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