标题: SPI自通信 [打印本页]

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作者: zmzmzmzm    时间: 2017-2-21 21:56
标题: SPI自通信
#include "stm32f10x.h"
#include "usart1.h"
#include "spi_flash.h"

int main(void)
{  
    u16 number=0xFEAA;
u16 receive=0x00,receive1=0x00;
GPIO_Configu();
    SPI_Configu();
USART1_Config();
SPI1_CS_LOW();
      
while (SPI_I2S_GetFlagStatus(SPI1, SPI_I2S_FLAG_TXE) == RESET); //等待SPI1发送缓冲区空  
  
  
SPI_I2S_SendData(SPI1,number);
receive1=SPI_I2S_ReceiveData(SPI1);
    printf("%x  \n",receive1);
while (SPI_I2S_GetFlagStatus(SPI2, SPI_I2S_FLAG_RXNE) == RESET); //等待SPI2接收数据完毕
printf("bbbbbbbbb\n");

receive=SPI_I2S_ReceiveData(SPI2);
SPI1_CS_HIGH();
printf("  %x   ",receive);
}

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