stm8l151C6 RC522 物理SPI没有SCK时钟

void main(void)

{

    hardware_init();

    //enableInterrupts();   

    while (1)

    {

//        ReadRawRC(0x05);

        SPIWritebyte(0xAA);

//        BSP_RFID_WriteRegister(CommandReg,0xAA);

//      gpio_set_low(PORTB, PIN5);

//      gpio_set_high(PORTB, PIN5);

    }

}



void hardware_init(void)

{

    u8 rv = 0;

    u8 ctrl_reg = 0, ver_reg = 0;

    

//    gpio_set_high(PORTD, PIN7);

    // system clock init

    sysclk_init_hsi(CLK_SYSCLKDiv_1);

    //CLK_HSIPrescalerConfig(CLK_PRESCALER_HSIDIV1);

    /* Select HSE as system clock source */

//  CLK_SYSCLKSourceSwitchCmd(ENABLE);

//  CLK_SYSCLKSourceConfig(CLK_SYSCLKSource_HSE);

  /*High speed external clock prescaler: 1*/

//  CLK_SYSCLKDivConfig(CLK_SYSCLKDiv_1);

    

    // com load configuration & init

    com_load_config(com_cfg, 1);

    com_init(COM1, 2400, USART_WordLength_9b, USART_StopBits_1, USART_Parity_Even, USART_Mode_All, ENABLE, 0);

    com_recv_init(COM1);

    

    /* Check if the system has resumed from IWDG reset */

    if (RST_GetFlagStatus(RST_FLAG_IWDGF) != RESET)

    {

        /* Clear IWDGF Flag */

        RST_ClearFlag(RST_FLAG_IWDGF);

        printf("RST_FLAG_IWDGF\r\n");

    }

    

    // rtc init

    rtc_init();

     

    BSP1_RFID_LoadConfig(&rfid_config); //加载管脚配置

    CLK_PeripheralClockConfig(CLK_Peripheral_SPI1, ENABLE);

    GPIO_Init(GPIOB, GPIO_Pin_4, GPIO_Mode_Out_PP_High_Fast); //NSS片选

    GPIO_Init(GPIOB, GPIO_Pin_5, GPIO_Mode_Out_PP_High_Fast); //SCK

    GPIO_Init(GPIOB, GPIO_Pin_6, GPIO_Mode_Out_PP_High_Fast); //MOSI

    //主机模式，配置为输入  

    GPIO_Init(GPIOB, GPIO_Pin_7, GPIO_Mode_In_PU_No_IT); //MISO

    

    BSP1_RFID_PowerOn();        //给RC522芯片上电

    //BSP1_RFID_PowerOff();

    

    SPI_DeInit(SPI1);

    SPI_Init(SPI1, SPI_FirstBit_MSB, SPI_BaudRatePrescaler_8, SPI_Mode_Master,SPI_CPOL_Low, SPI_CPHA_1Edge,SPI_Direction_2Lines_FullDuplex, SPI_NSS_Soft, 0x07); 

    //SPI_Init(SPI1, SPI_FirstBit_MSB, SPI_BaudRatePrescaler_128, SPI_Mode_Master,SPI_CPOL_High, SPI_CPHA_2Edge,SPI_Direction_2Lines_FullDuplex, SPI_NSS_Soft, 0x07);

    SPI_Cmd(SPI1, ENABLE);  /* 使能SPI */ 

    

    rv = BSP1_RFID_Reset(&ctrl_reg, &ver_reg);  //和PcdReset库函数一模一样

    printf("ctrl_reg:%02X, ver_reg:%02X\r\n", ctrl_reg, ver_reg);

    if (rv != 0)

    {

        printf("rfid init error\r\n");

    }

    BSP_RFID_AntennaOff();

    delay_ms(1);

    BSP_RFID_AntennaOn();

    BSP_RFID_ConfigISOType('A');        //针对ISO14443A型卡进行初始化



    return;

}



/*! \brief

*       rc522 reset

* \return

*       MI_OK       - success

*       MI_ERR      - failure

*/

char BSP1_RFID_Reset(u8 *ctrl_reg, u8 *version)

{

    unsigned char val = 0;



    /* set rc522 rst to push pull output state , and set it to 0 */

    BSP_GPIO_Init(rfid_config_handler->rst.port, rfid_config_handler->rst.pin, GPIO_Mode_Out_PP_Low_Fast);

//    /* set rs522 nss to push pull output state, and set it to 1, disable sck,mosi,miso pin */

//    BSP_GPIO_Init(rfid_config_handler->nss.port, rfid_config_handler->nss.pin, GPIO_Mode_Out_PP_High_Fast);

//    /* set rc522 sck to push pull output state, and set it to 1 */

//    BSP_GPIO_Init(rfid_config_handler->sck.port, rfid_config_handler->sck.pin, GPIO_Mode_Out_PP_High_Fast);

//    /* set rc522 miso to push up input state*/

//    BSP_GPIO_Init(rfid_config_handler->miso.port, rfid_config_handler->miso.pin, GPIO_Mode_In_PU_No_IT);

//    //BSP_GPIO_Init(rfid_config_handler->miso.port, rfid_config_handler->miso.pin, GPIO_Mode_Out_PP_High_Fast);

//    /* set rc522 mosi to push pull output state, and set it to 1 */

//    BSP_GPIO_Init(rfid_config_handler->mosi.port, rfid_config_handler->mosi.pin, GPIO_Mode_Out_PP_High_Fast);



    delay_us(10);



    /* rs522 will be reset by setting rst to execute 1-0-1 sequence. */

    BSP_GPIO_SetHigh(rfid_config_handler->rst.port, rfid_config_handler->rst.pin);

    delay_us(10);

    BSP_GPIO_SetLow(rfid_config_handler->rst.port, rfid_config_handler->rst.pin);

    delay_us(10);

    BSP_GPIO_SetHigh(rfid_config_handler->rst.port, rfid_config_handler->rst.pin);

    delay_us(10);



    //    RC522_RST_H();

    //    delay_us(10);

    //    RC522_RST_L();

    //    delay_us(10);

    //    RC522_RST_H();

    //    delay_us(10);



    WriteRawRC(CommandReg,PCD_RESETPHASE);

    delay_us(10);



    WriteRawRC(ModeReg,0x3D);            //和Mifare卡通讯，CRC初始值0x6363

    WriteRawRC(TReloadRegL,30);

    WriteRawRC(TReloadRegH,0);

    WriteRawRC(TModeReg,0x8D);

    WriteRawRC(TPrescalerReg,0x3E);



    WriteRawRC(TxAutoReg,0x40);//必须要



    val = ReadRawRC(ControlReg);

    if (val == 0xFF)

    {

        //printf("CtlReg:%02X\r\n", val);

        return MI_ERR;

    }

    

    *ctrl_reg = val;



    val = ReadRawRC(VersionReg);

    if (val == 0xFF)

    {

        //printf("Ver:%02X\r\n", val);

        return MI_ERR;

    }

    

    *version = val;

//

//    BSP_RFID_AntennaOff();

//    BSP_RFID_ConfigISOType('A');

//    delay_ms(1);

//    BSP_RFID_AntennaOn();

    

    return MI_OK;

}



void SPIWritebyte(u8 Byte)

{

  u16 retry=0; 

//  u8 rv = 0;

  

  while (SPI_GetFlagStatus(SPI1, SPI_FLAG_TXE) == RESET)

  {

    retry++;

    if(retry>200)

    {

      return;

    }

  } 

  SPI_SendData(SPI1, Byte); 

  retry=0;

  //while (SPI_GetFlagStatus(SPI1, SPI_FLAG_RXNE) == RESET)

  while (SPI_GetFlagStatus(SPI1, SPI_FLAG_BSY) == SET)

  {

    retry++;

    if(retry>400)return;

  } 

  while (SPI_GetFlagStatus(SPI1, SPI_FLAG_RXNE) == RESET)

  {

    retry++;

    if(retry>400)return;

  } 

  SPI_ReceiveData(SPI1);

}