void SPI3_IRQHandler()
{
SPI_I2S_ClearITPendingBit(SPI3, SPI_I2S_IT_RXNE);
//отправка отладочных данных в UART
}

static void SPI3_Slave_Config(void)
{
SPI_InitTypeDef SPI_InitStructure;
GPIO_InitTypeDef GPIO_InitStructure;

RCC_APB1PeriphClockCmd(RCC_APB1Periph_SPI3, ENABLE);
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOC, ENABLE);

GPIO_DeInit(GPIOC);

GPIO_PinAFConfig(GPIOC, GPIO_PinSource10, GPIO_AF_SPI3);
GPIO_PinAFConfig(GPIOC, GPIO_PinSource11, GPIO_AF_SPI3);
GPIO_PinAFConfig(GPIOC, GPIO_PinSource12, GPIO_AF_SPI3);

GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_DOWN;
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10 | GPIO_Pin_11 | GPIO_Pin_12;
GPIO_Init(GPIOC, &GPIO_InitStructure);

SPI_I2S_DeInit(SPI3);
SPI_InitStructure.SPI_Direction = SPI_Direction_2Lines_FullDuplex;
SPI_InitStructure.SPI_DataSize = SPI_DataSize_8b;
SPI_InitStructure.SPI_CPOL = SPI_CPOL_Low;
SPI_InitStructure.SPI_CPHA = SPI_CPHA_1Edge;
SPI_InitStructure.SPI_NSS = SPI_NSS_Soft;
SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_32;
SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB;
SPI_InitStructure.SPI_CRCPolynomial = 7;
SPI_InitStructure.SPI_Mode = SPI_Mode_Slave;
SPI_Init(SPI3, &SPI_InitStructure);

NVIC_EnableIRQ(SPI3_IRQn);
SPI_I2S_ITConfig(SPI3, SPI_I2S_IT_RXNE, ENABLE);
SPI_Cmd(SPI3, ENABLE);
}


static void SPI1_Master_Config(void)
{
SPI_InitTypeDef SPI_InitStructure;
GPIO_InitTypeDef GPIO_InitStructure;

RCC_APB1PeriphClockCmd(RCC_APB2Periph_SPI1, ENABLE);
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOB, ENABLE);

GPIO_DeInit(GPIOB);

GPIO_PinAFConfig(GPIOB, GPIO_PinSource3, GPIO_AF_SPI1);
GPIO_PinAFConfig(GPIOB, GPIO_PinSource4, GPIO_AF_SPI1);
GPIO_PinAFConfig(GPIOB, GPIO_PinSource5, GPIO_AF_SPI1);

GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_DOWN;
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_3 | GPIO_Pin_4 | GPIO_Pin_5;
GPIO_Init(GPIOB, &GPIO_InitStructure);

SPI_I2S_DeInit(SPI1);
SPI_InitStructure.SPI_Direction = SPI_Direction_2Lines_FullDuplex;
SPI_InitStructure.SPI_DataSize = SPI_DataSize_8b;
SPI_InitStructure.SPI_CPOL = SPI_CPOL_Low;
SPI_InitStructure.SPI_CPHA = SPI_CPHA_1Edge;
SPI_InitStructure.SPI_NSS = SPI_NSS_Soft;
SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_32;
SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB;
SPI_InitStructure.SPI_CRCPolynomial = 7;
SPI_InitStructure.SPI_Mode = SPI_Mode_Master;
SPI_Init(SPI1, &SPI_InitStructure);

SPI_I2S_ITConfig(SPI1, SPI_I2S_IT_RXNE, ENABLE);
SPI_Cmd(SPI1, ENABLE);
}

uint8_t dataSPI = 'A';

int main(void)
{
__enable_irq();

SPI1_Master_Config();
SPI3_Slave_Config();

while(1)
{
SPI_I2S_SendData(SPI1, dataSPI);
}

}