STM32的HAL库的SPI调试LD3320通信

//主程序的部分代码，就是一直写读寄存器并打印读到的寄存器值。

while(1){

    ceshi(&LD3320_hw);

 }

void ceshi(LD3320_hw_t * hw)

{

        

        uint8 a,b,c;

        LD_reset(hw);

        a = LD_ReadReg(hw,0x35);

        b = LD_ReadReg(hw,0x1b);

        c =        LD_ReadReg(hw,0xb3);

        printf("%02X\r\n",a);    //16进制打印

        printf("%02X\r\n",b);

        printf("%02X\r\n",c);

        LD_WriteReg(hw,0x35,0x33);

        LD_WriteReg(hw,0x1b,0x55);

        LD_WriteReg(hw,0xb3,0xaa);

        a = LD_ReadReg(hw,0x35);

        b = LD_ReadReg(hw,0x1b);

        c =        LD_ReadReg(hw,0xb3);

        printf("%02X\r\n",a);

        printf("%02X\r\n",b);

        printf("%02X\r\n",c);

 

}

void LD_WriteReg(LD3320_hw_t * hw,uint8 data1,uint8 data2)//LD3320写寄存器

{

        uint8 cmdwrite = 0x04;

        LD3320_hw_SetNSS(hw,0);

        LD3320_hw_SetSPIS(hw,0);

        HAL_SPI_Transmit(hw->spi, &cmdwrite, 1, 1000);

        while (HAL_SPI_GetState(hw->spi) != HAL_SPI_STATE_READY);

        HAL_SPI_Transmit(hw->spi, &data1, 1, 1000);

        while (HAL_SPI_GetState(hw->spi) != HAL_SPI_STATE_READY);

        HAL_SPI_Transmit(hw->spi, &data2, 1, 1000);

        while (HAL_SPI_GetState(hw->spi) != HAL_SPI_STATE_READY);

        LD3320_hw_SetNSS(hw,1);

}

 

 uint8 LD_ReadReg(LD3320_hw_t * hw,uint8 reg_add)//LD3320读寄存器

{        

        uint8_t txByte = 0x11;//这个txByte随便一个数即可

        uint8_t rxByte = 0x00;

        uint8 cmdread=0x05;

        LD3320_hw_SetNSS(hw,0);

        LD3320_hw_SetSPIS(hw,0);

        HAL_SPI_Transmit(hw->spi, &cmdread, 1, 1000);

        while (HAL_SPI_GetState(hw->spi) != HAL_SPI_STATE_READY);

        HAL_SPI_Transmit(hw->spi, &reg_add, 1, 1000);

        while (HAL_SPI_GetState(hw->spi) != HAL_SPI_STATE_READY);

        HAL_SPI_TransmitReceive(hw->spi, &txByte, &rxByte, 1, 1000);

        while (HAL_SPI_GetState(hw->spi) != HAL_SPI_STATE_READY);

        LD3320_hw_SetNSS(hw,1);

        return rxByte;

        

}