_ARMABI int printf(const char * __restrict /*format*/, ...) __attribute__((__nonnull__(1)));
struct __FILE { int handle;};
FILE __stdout;
int fputc(int ch, FILE *f)

struct __FILE {int dummy;};
FILE __stdout;
FILE __stdin;
int fputc(int ch, FILE *f)

  hspi2.Instance = SPI2;
  hspi2.Init.Mode = SPI_MODE_MASTER;
  hspi2.Init.Direction = SPI_DIRECTION_2LINES;
  hspi2.Init.DataSize = SPI_DATASIZE_9BIT;
  hspi2.Init.CLKPolarity = SPI_POLARITY_LOW;
  hspi2.Init.CLKPhase = SPI_PHASE_1EDGE;
  hspi2.Init.NSS = SPI_NSS_HARD_OUTPUT;
  hspi2.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_128;
  hspi2.Init.FirstBit = SPI_FIRSTBIT_MSB;
  hspi2.Init.TIMode = SPI_TIMODE_DISABLE;
  hspi2.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE;
  hspi2.Init.CRCPolynomial = 7;
  hspi2.Init.CRCLength = SPI_CRC_LENGTH_DATASIZE;
  hspi2.Init.NSSPMode = SPI_NSS_PULSE_ENABLE;
  HAL_SPI_Init(&hspi2);

   //PB10: SPI2_CLK, PB14: SPI2_MISO, PB15: SPI2_MOSI
  GPIO_InitStructure.Pin = GPIO_PIN_10 | GPIO_PIN_14 | GPIO_PIN_15;
  GPIO_InitStructure.Alternate = GPIO_AF5_SPI2;
  GPIO_InitStructure.Mode  = GPIO_MODE_AF_PP;
  GPIO_InitStructure.Speed = GPIO_SPEED_MEDIUM,
  GPIO_InitStructure.Pull  = GPIO_NOPULL,
  GPIO_Init(GPIOB, &GPIO_InitStructure);

void HAL_SPI_MspInit(SPI_HandleTypeDef* hspi){
  GPIO_InitTypeDef GPIO_InitStruct;
  if(hspi->Instance==SPI1)
  {
    /* Peripheral clock enable */
    __SPI1_CLK_ENABLE();
  
  /**SPI1 GPIO Configuration  
  PA5   ------> SPI1_SCK
  PA6   ------> SPI1_MISO
  PA7   ------> SPI1_MOSI
  */
    GPIO_InitStruct.Pin = GPIO_PIN_5|GPIO_PIN_6|GPIO_PIN_7;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    GPIO_InitStruct.Speed = GPIO_SPEED_LOW;
    GPIO_InitStruct.Alternate = GPIO_AF5_SPI1;
    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

  }
}

void HAL_SPI_MspDeInit(SPI_HandleTypeDef* hspi){
  if(hspi->Instance==SPI1)
  {
    /* Peripheral clock disable */
    __SPI1_CLK_DISABLE();
  
  /**SPI1 GPIO Configuration  
  PA5   ------> SPI1_SCK
  PA6   ------> SPI1_MISO
  PA7   ------> SPI1_MOSI
  */
    HAL_GPIO_DeInit(GPIOA, GPIO_PIN_5|GPIO_PIN_6|GPIO_PIN_7);

  }
}

  GPIO_InitStruct.Pin = GPIO_PIN_10|GPIO_PIN_12;
  GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
  GPIO_InitStruct.Pull = GPIO_NOPULL;
  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
  GPIO_InitStruct.Alternate = GPIO_AF5_SPI2;
  HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
  

  GPIO_InitStruct.Pin = GPIO_PIN_3;
  GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
  GPIO_InitStruct.Pull = GPIO_NOPULL;
  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
  GPIO_InitStruct.Alternate = GPIO_AF5_SPI2;
  HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);

    RCC->APB1ENR1 |= 1<<14;                    //Тактирование SPI2 стр. 228
    for (i = 0; i < 30000; i++ ){};
    RCC->AHB2ENR |= RCC_AHB2ENR_GPIOBEN;    //Разрешить тактирование GPIOB
    for (i = 0; i < 30000; i++ ){};
    RCC->AHB2ENR |= RCC_AHB2ENR_GPIOCEN;    //Разрешить тактирование GPIOC
    for (i = 0; i < 30000; i++ ){};
    GPIOB->MODER =     (2<<20)|                //PB10 - альтернативная функция SPI2_SCK
                    (2<<24)|                //PB12 - альтернативная функция SPI2_NSS
                    (1<<26);                 //PB13 - Программный CS push pull режим
    GPIOC->MODER =     (2<<6);                    //PC3 - альтернативная функция SPI2_MOSI
    GPIOB->AFR[1] = 5<<8|                    //Альтернативная функция 5 для PB10 стр. 268
                    5<<16;                    //Альтернативная функция 5 для PB12
    GPIOC->AFR[0] = 5<<12;                    //Альтернативная функция 5 для PC3

//PB10 = SPI2_SCK = AF5
//PB12 = SPI2_NSS = AF5
//PB13 = Soft NSS output push pull.
//PC3 = SPI2_MOSI = AF5

    SPI2->CR1 = 0<<0|    //Bit 0 CPHA: Clock phase
                0<<1|    //Bit1 CPOL: Clock polarity
                1<<2|    //Bit 2 MSTR: Master selection
                7<<3|    //Bits 5:3 BR[2:0]: Baud rate control 000b=2,001b=4,010b=8,011b=16,100b=32,101b=64,110b=128,111b=256
                1<<6|    //Bit 6 SPE: SPI enable
                0<<7|    //Bit 7 LSBFIRST: Frame format 0-MSB First
                0<<8|    //Bit 8 SSI: Internal slave select
                0<<9|    //Bit 9 SSM: Software slave management
                0<<10|    //Bit 10 RXONLY: Receive only mode enabled
                0<<11|    //Bit 11 CRCL: CRC length
                0<<12|    //Bit 12 CRCNEXT: Transmit CRC next
                0<<13|    //Bit 13 CRCEN: Hardware CRC calculation enable
                1<<14|    //Bit 14 BIDIOE: Output enable in bidirectional mode
                0<<15;    //Bit 15 BIDIMODE: Bidirectional data mode enable
    SPI2->CR2 = 0<<0|    //RXDMAEN: Rx buffer DMA enable
                0<<1|    //Bit 1 TXDMAEN: Tx buffer DMA enable
                1<<2|    //Bit 2 SSOE: SS output enable
                1<<3|    //Bit 3 NSSP: NSS pulse management
                0<<4|    //Bit 4 FRF: Frame format 0: SPI Motorola mode, 1 SPI TI mode
                0<<5|    //Bit 5 ERRIE: Error interrupt enable
                0<<6|    //Bit 6 RXNEIE: RX buffer not empty interrupt enable
                0<<7|    //Bit 7 TXEIE: Tx buffer empty interrupt enable
                8<<8|    //Bits 11:8 DS [3:0]: Data size. 8 - 9бит
                0<<12|    //Bit 12 FRXTH: FIFO reception threshold
                0<<13|    //Bit 13 LDMA_RX: Last DMA transfer for reception
                0<<14;    //Bit 14 LDMA_TX: Last DMA transfer for transmission