Posted on December 18, 2014 at 16:15Hello to everyone
i have being used to std library on stm. Now i passed to Hal library. I write an Usart code. I i dont use intrerrupt its work correct. But whe i set interrupt routine its not enter to RXNE IRQ handler. Code is below could you check and help me about my mistake.
HAL_Init();
/* Configure the system clock */
SystemClock_Config();
HAL_NVIC_SetPriorityGrouping(NVIC_PRIORITYGROUP_0);
HAL_NVIC_SetPriority(SysTick_IRQn, 0, 0);
saveToFlash();
MX_GPIO_Init();
HAL_GPIO_WritePin(GPIOH,GPIO_PIN_12,GPIO_PIN_SET);
MX_USART3_UART_Init();
HAL_UART_Transmit(&huart3,(uint8_t*)dene,4,1000);
while (1)
{
}
}
void USART3_IRQHandler(void)
{
HAL_NVIC_ClearPendingIRQ(USART3_IRQn);
}
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct;
__PWR_CLK_ENABLE();
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE3);
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.HSICalibrationValue = 6;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;
HAL_RCC_OscConfig(&RCC_OscInitStruct);
}
/* USART3 init function */
void MX_USART3_UART_Init(void)
{
__GPIOC_CLK_ENABLE();
__USART3_CLK_ENABLE();
huart3.Instance = USART3;
huart3.Init.BaudRate = 115200;
huart3.Init.WordLength = UART_WORDLENGTH_8B;
huart3.Init.StopBits = UART_STOPBITS_1;
huart3.Init.Parity = UART_PARITY_NONE;
huart3.Init.Mode = UART_MODE_TX_RX;
huart3.Init.HwFlowCtl = UART_HWCONTROL_NONE;
huart3.Init.OverSampling = UART_OVERSAMPLING_16;
HAL_UART_Init(&huart3);
HAL_NVIC_SetPriority(USART3_IRQn, 0, 1);
HAL_NVIC_EnableIRQ(USART3_IRQn);
__HAL_UART_ENABLE_IT(&huart3,UART_IT_RXNE);
__HAL_UART_ENABLE_IT(&huart3,UART_IT_TXE);
}
Thanx.
