Posted on November 07, 2014 at 06:37
Hi,
I am trying to some data from STM32FO devboard(Standard board from ST- MB1304) to PC via usart1. I have created the project in Keil. Data is not transmitting from STM32 to PC. First I thought that code is not running. To check that I have added an led blinking program and then checked. The led starts blinking, but no data via usart. Don't know what went wrong. I think there might be the problem with clock configuration...The code is given below.
int main()
{
init_usart();
while(1)
{
while (USART_GetFlagStatus(USART1, USART_FLAG_TXE) == RESET)
{
USART_SendData(USART1, 'X');
}
}
}
void init_usart()
{
USART_InitTypeDef USART_InitStructure;
GPIO_InitTypeDef GPIO_InitStructure;
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOA, ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1,ENABLE);
GPIO_PinAFConfig(GPIOA, GPIO_PinSource9, GPIO_AF_0);
GPIO_PinAFConfig(GPIOA, GPIO_PinSource10, GPIO_AF_0);
/* Configure USART1 pins: Rx and Tx ----------------------------*/
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9 | GPIO_Pin_10;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
GPIO_Init(GPIOA, &GPIO_InitStructure);
USART_InitStructure.USART_BaudRate = 9600;
USART_InitStructure.USART_WordLength = USART_WordLength_8b;
USART_InitStructure.USART_StopBits = USART_StopBits_1;
USART_InitStructure.USART_Parity = USART_Parity_No;
USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
USART_Init(USART1, &USART_InitStructure);
USART_Cmd(USART1,ENABLE);
}
.Any suggestions....
#stm32f0-usart
