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Can't make HAL_UART_Transmit_IT to send data

Radoslav Mar
Associate II
Posted on July 09, 2018 at 13:57

Hello All!

This is my code:

Better see this

https://github.com/RadoslavMarinov/transfer/blob/78eadef8c1a6482051c0c091bf3aaddbebfcaf69/main.c

for better view!!

/*

* main.c

*

* Created on: 4.07.2018 �?³.

* Author: Radoslav Marinov

*/

#include 'main-primary.h'

#include 'main.h'

//#include 'application/zw-transmitter/zw-transmitter.h'

void errorHandler();

static void zwTransmitter_initInterrupts();

static void zwTransmitter_initUartProtocol();

static void zwTransmitter_initUartPins();

void zwTransmitter_initUart();

uint8_t aTxBuffer[] = {0, 1, 2, 3};

static main_SelfData main_self;

UART_HandleTypeDef uart1Handle;

int main(void)

{

HAL_Init();

main_clockSystemInit();

zwTransmitter_initUart();

while (HAL_UART_GetState(&uart1Handle) != HAL_UART_STATE_READY)

{

;

}

if(HAL_UART_Transmit_IT(&uart1Handle, (uint8_t*)aTxBuffer, sizeof(aTxBuffer))!= HAL_OK)

{

aTxBuffer[0] = 5;

}

while(1)

{

;

}

}

void main_clockSystemInit()

{

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;

RCC_OscInitStruct.PLL.PLLM = 8;

RCC_OscInitStruct.PLL.PLLN = 336;

RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;

RCC_OscInitStruct.PLL.PLLQ = 7;

if(HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)

{

MAIN_raiseError(HAL_RCC_OscConfig_err);

}

/* 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)

{

MAIN_raiseError(HAL_RCC_ClockConfig);

}

}

void zwTransmitter_initUart()

{

zwTransmitter_initUartPins();

zwTransmitter_initUartProtocol();

zwTransmitter_initInterrupts();

}

static void zwTransmitter_initUartPins()

{

GPIO_InitTypeDef zwTransmitter_gpioInitStruct;

__HAL_RCC_GPIOA_CLK_ENABLE();

zwTransmitter_gpioInitStruct.Pin = GPIO_PIN_9;

zwTransmitter_gpioInitStruct.Mode = GPIO_MODE_AF_PP;

zwTransmitter_gpioInitStruct.Pull = GPIO_NOPULL;

zwTransmitter_gpioInitStruct.Speed = GPIO_SPEED_FAST;

zwTransmitter_gpioInitStruct.Alternate = GPIO_AF7_USART1;

HAL_GPIO_Init(GPIOA, &zwTransmitter_gpioInitStruct);

}

static void zwTransmitter_initUartProtocol()

{

__HAL_RCC_USART1_CLK_ENABLE();

uart1Handle.Instance = USART1;

uart1Handle.Init.BaudRate = 115200;

uart1Handle.Init.WordLength = UART_WORDLENGTH_8B;

uart1Handle.Init.StopBits = UART_STOPBITS_1;

uart1Handle.Init.Parity = UART_PARITY_NONE;

uart1Handle.Init.HwFlowCtl = UART_HWCONTROL_NONE;

uart1Handle.Init.Mode = UART_MODE_TX_RX;

uart1Handle.Init.OverSampling = UART_OVERSAMPLING_16;

if(HAL_UART_Init(&uart1Handle) != HAL_OK)

{

errorHandler();

}

}

static void zwTransmitter_initInterrupts()

{

HAL_NVIC_SetPriority(USART1_IRQn, 0, 1);

HAL_NVIC_EnableIRQ(USART1_IRQn);

}

void errorHandler()

{

while(1)

{

;

}

}

I followed one of the examples in STM CubeX: 'STM32F429I-Discovery' to create this code, but seems that didnt help.

I can not get any data on PIN A9 on my chip: STM32F429ZIT.

1 REPLY 1

Is this issue still pending or can it be closed out?

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