void send_str(char *mych)
{
while(*mych)
{
while(SPI_I2S_GetFlagStatus(SPI1, SPI_I2S_FLAG_TXE) == RESET);
  SPI_I2S_SendData(SPI1, *mych++);
while(SPI_I2S_GetFlagStatus(SPI1, SPI_I2S_FLAG_RXNE) == RESET);

}
}

volatile char marr[10];  // буфер приёма данных
volatile short count=0;
void SPI1_IRQHandler()
{
marr[count++]=SPI_I2S_ReceiveData(SPI1);
}