VGComBoard_3120_Demo/bsp/board_spi.c

#include "gpio.h"
#include "spi.h"

#include "board_gpio.h"


/**
******************************************************************************
** \brief  初始化SPI
**
** \return 无
******************************************************************************/

void board_spi_int(void)
{
    stc_spi_cfg_t  SpiInitStruct;
    stc_gpio_cfg_t GpioInitStruct;
    
    DDL_ZERO_STRUCT(GpioInitStruct);
    
    Sysctrl_SetPeripheralGate(SysctrlPeripheralSpi0,TRUE);
    Sysctrl_SetPeripheralGate(SysctrlPeripheralGpio,TRUE);
    
    //SPI0引脚配置:主机
    GpioInitStruct.enDrv = GpioDrvH;
    GpioInitStruct.enDir = GpioDirOut;
   
    Gpio_Init(RADIO_MOSI_PORT, RADIO_MOSI_PIN,&GpioInitStruct);
    Gpio_SetAfMode(RADIO_MOSI_PORT, RADIO_MOSI_PIN,GpioAf1);        //配置引脚PA7作为SPI0_MOSI
    
    Gpio_Init(RADIO_NSS_PORT, RADIO_NSS_PIN,&GpioInitStruct);
    Gpio_SetAfMode(RADIO_NSS_PORT, RADIO_NSS_PIN,GpioAf1);         //配置引脚PA04作为SPI0_CS

    Gpio_Init(RADIO_SCK_PORT, RADIO_SCK_PIN,&GpioInitStruct);
    Gpio_SetAfMode(RADIO_SCK_PORT, RADIO_SCK_PIN,GpioAf1); //配置引脚PA05作为SPI0_SCK

    GpioInitStruct.enDir = GpioDirIn;
    Gpio_Init(RADIO_MISO_PORT, RADIO_MISO_PIN,&GpioInitStruct);
    Gpio_SetAfMode(RADIO_MISO_PORT, RADIO_MISO_PIN,GpioAf1); //配置引脚PA06作为SPI0_MISO

    //SPI0模块配置：主机
    SpiInitStruct.enSpiMode = SpiMskMaster;   //配置位主机模式
    SpiInitStruct.enPclkDiv = SpiClkMskDiv4;  //波特率：fsys/4
    SpiInitStruct.enCPHA    = SpiMskCphafirst;//第一边沿采样
    SpiInitStruct.enCPOL    = SpiMskcpollow;  //极性为低
    Spi_Init(RADIO_SPI_CHx, &SpiInitStruct);

}

uint8_t SpiInOut(uint8_t data_write)
{
  while(Spi_GetStatus(RADIO_SPI_CHx, SpiTxe) == FALSE);//等待发送缓冲器空
  Spi_SendData(RADIO_SPI_CHx,data_write);
  
  while(Spi_GetStatus(RADIO_SPI_CHx, SpiRxne) == FALSE);//等待接收缓冲器非空
  return Spi_ReceiveData(RADIO_SPI_CHx);
  
}