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STM32F429I USART problem

Question asked by mikulics.stefan on Mar 18, 2016
Latest reply on Mar 19, 2016 by Clive One
Hello,
I have STM32F429I-DISCO and STM32F429I-DISC1.  I am using same program on that. Sending usart data works great on both, but receiving data on disco usart interrupt work and on disc1 doesn't work...

There is my usart config:

GPIO_InitTypeDef GPIO_InitDef;
USART_InitTypeDef USART_InitStruct;
NVIC_InitTypeDef NVIC_InitDef;
     
RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1, ENABLE);
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA, ENABLE);


GPIO_InitDef.GPIO_Pin = GPIO_Pin_9 | GPIO_Pin_10;
GPIO_InitDef.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitDef.GPIO_OType = GPIO_OType_PP;
GPIO_InitDef.GPIO_PuPd = GPIO_PuPd_UP;
GPIO_InitDef.GPIO_Speed = GPIO_Speed_100MHz;
GPIO_Init(GPIOA, &GPIO_InitDef);

GPIO_PinAFConfig(GPIOA, GPIO_PinSource9, GPIO_AF_USART1);
GPIO_PinAFConfig(GPIOA, GPIO_PinSource10, GPIO_AF_USART1);

USART_InitStruct.USART_BaudRate = 9600;
USART_InitStruct.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
USART_InitStruct.USART_Mode = USART_Mode_Tx | USART_Mode_Rx;
USART_InitStruct.USART_Parity = USART_Parity_No;
USART_InitStruct.USART_StopBits = USART_StopBits_1;
USART_InitStruct.USART_WordLength = USART_WordLength_8b;
USART_Init(USART1, &USART_InitStruct);     
     
USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);
     
NVIC_InitDef.NVIC_IRQChannel = USART1_IRQn;
NVIC_InitDef.NVIC_IRQChannelCmd = ENABLE;
NVIC_InitDef.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_InitDef.NVIC_IRQChannelSubPriority = 0;
NVIC_Init(&NVIC_InitDef);
     
USART_Cmd(USART1, ENABLE);

Do you have any idea where can be the problem? I am finding that a few days and I really don't know.

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