这个程序软仿真过不去，硬仿真过去了，然后又过不去了。好头大，能帮我看一下码？？

lwhqbd · 发表于 2015-5-30 17:18:40

void NRF24L01_Init(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
SPI_InitTypeDef SPI_InitStructure;
NVIC_InitTypeDef NVIC_InitStructure;
EXTI_InitTypeDef EXTI_InitStructure;

RCC_APB2PeriphClockCmd( RCC_APB2Periph_GPIOA|RCC_APB2Periph_GPIOC|RCC_APB2Periph_SPI1|RCC_APB2Periph_AFIO, ENABLE );

GPIO_InitStructure.GPIO_Pin =GPIO_Pin_5|GPIO_Pin_6|GPIO_Pin_7; //PA.5.6.7复用推挽//SCK.MOSI.MISO
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  GPIO_Init(GPIOA, &GPIO_InitStructure);
GPIO_SetBits(GPIOA,GPIO_Pin_5|GPIO_Pin_7|GPIO_Pin_6);//上拉

GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4; //PC.4P片选低电平使能
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;             //PC.4推挽   CSN
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  GPIO_Init(GPIOC, &GPIO_InitStructure);

GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5;   //EXTI5_IRQn可对应于PA.5------PG.5
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPD; //PC5 下拉输入
GPIO_Init(GPIOC, &GPIO_InitStructure);

GPIO_ResetBits(GPIOC,GPIO_Pin_5|GPIO_Pin_4);//PC4,5,下拉

GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4; //PA.4推挽   CE
  GPIO_Init(GPIOA, &GPIO_InitStructure);
GPIO_ResetBits(GPIOA,GPIO_Pin_4);//PC4,5,上拉



   NVIC_InitStructure.NVIC_IRQChannel = EXTI9_5_IRQn;                    //NRF24L01 中断响应
   NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;            //抢占优先级 0
   NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;                //子优先级为1
   NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;                    //使能
   NVIC_Init(&NVIC_InitStructure);

   GPIO_EXTILineConfig(GPIO_PortSourceGPIOC, GPIO_PinSource5);       //NRF24L01 IRQ PC5
   EXTI_InitStructure.EXTI_Line = EXTI_Line5;
   EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;               //EXTI中断
   EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;           //下降沿触发
   EXTI_InitStructure.EXTI_LineCmd = ENABLE;                           //使能
   EXTI_Init(&EXTI_InitStructure);

SPI_Cmd(SPI1, DISABLE); // SPI外设不使能

SPI_InitStructure.SPI_Direction = SPI_Direction_2Lines_FullDuplex; //SPI设置为双线双向全双工
SPI_InitStructure.SPI_Mode = SPI_Mode_Master;  //SPI主机
    SPI_InitStructure.SPI_DataSize = SPI_DataSize_8b;  //发送接收8位帧结构
SPI_InitStructure.SPI_CPOL = SPI_CPOL_Low;  //时钟悬空低
SPI_InitStructure.SPI_CPHA = SPI_CPHA_2Edge; //数据捕获于第1个时钟沿
SPI_InitStructure.SPI_NSS = SPI_NSS_Soft;  //NSS信号由软件控制
SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_16;  //定义波特率预分频的值:波特率预分频值为16
SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB; //数据传输从MSB位开始
SPI_InitStructure.SPI_CRCPolynomial = 7; //CRC值计算的多项式
SPI_Init(SPI1, &SPI_InitStructure); //根据SPI_InitStruct中指定的参数初始化外设SPIx寄存器

SPI_Cmd(SPI1, ENABLE); //使能SPI外设

NRF24L01_CE=0;    //失能24L01
NRF24L01_CSN=1;   //SPI片选取消

}