分享个高速USB2SPI适配器，简单快速的将数据传输到PC

  /*

  ******************************************************************************

  * [url=home.php?mod=space&uid=288409]@file[/url]     : USB2XXXSPISlaveReceiveFile.cpp

  * @Copyright: usbxyz 

  * @Revision : ver 1.0

  * [url=home.php?mod=space&uid=212281]@date[/url]     : 2014/12/19 9:33

  * [url=home.php?mod=space&uid=247401]@brief[/url]    : USB2XXX SPI slave receive file test demo

  ******************************************************************************

  * @attention

  *

  * Copyright 2009-2014, usbxyz.com

  * http://www.usbxyz.com/

  * All Rights Reserved

  * 

  ******************************************************************************

  */

#include <stdlib.h>

#include <stdio.h>

#include <string.h>

#include "usb_device.h"

#include "usb2spi.h"



#define USE_CALLBACK_RECEIVE_DATA   1



FILE *pFile;

int FileSize = 0;



#if USE_CALLBACK_RECEIVE_DATA

int __stdcall SlaveGetData(int DevHandle,int SPIIndex,unsigned char *pData,int DataNum)

{

    fwrite(pData,1,DataNum,pFile);

    FileSize += DataNum;

    printf("Get data num = %d\n",DataNum);

    return 0;

}

#endif



int main(int argc, const char* argv[])

{

    DEVICE_INFO DevInfo;

    SPI_CONFIG SPIConfig;

    int DevHandle[10];

    int SPIIndex = SPI1_CS0;

    bool state;

    int ret;

    unsigned char ReadBuffer[20480];

    //扫描查找设备

    ret = USB_ScanDevice(DevHandle);

    if(ret <= 0){

        printf("No device connected!\n");

        getchar();

        return 0;

    }

    //打开设备

    state = USB_OpenDevice(DevHandle[0]);

    if(!state){

        printf("Open device error!\n");

        getchar();

        return 0;

    }

    //输入SPI相关参数，必须和主机匹配

    int DataTemp;

    printf("Please input CPHA(0 or 1):");

    scanf("%d",&DataTemp);

    SPIConfig.CPHA = DataTemp;

    printf("Please input CPOL(0 or 1):");

    scanf("%d",&DataTemp);

    SPIConfig.CPOL = DataTemp;

    printf("SPIConfig.CPHA = %d\n",SPIConfig.CPHA);

    printf("SPIConfig.CPOL = %d\n",SPIConfig.CPOL);

    //配置SPI总线相关参数(配置为从机模式)

    SPIConfig.Mode = SPI_MODE_HARD_FDX;

    SPIConfig.ClockSpeedHz = 50000000;

    //SPIConfig.CPHA = 0;

    //SPIConfig.CPOL = 0;

    SPIConfig.LSBFirst = SPI_MSB;

    SPIConfig.Master = SPI_SLAVE;

    SPIConfig.SelPolarity = SPI_SEL_LOW;

    ret = SPI_Init(DevHandle[0],SPIIndex,&SPIConfig);

    if(ret != SPI_SUCCESS){

        printf("Initialize device error!\n");

        getchar();

        return 0;

    }

    //输入文件名

    printf("Please input file name:");

    char FileName[512]={0};

    scanf("%s",FileName);

    printf("Start receive data to file,the file name is %s\n",FileName);

    printf("Press any key to exit the data reception!\n");

    pFile=fopen(FileName,"wb"); //获取文件的指针

    if(pFile == NULL){

        printf("Open file faild\n");

        getchar();

        return 0;

    }

#if USE_CALLBACK_RECEIVE_DATA

    SPI_SlaveContinueRead(DevHandle[0],SPIIndex,SlaveGetData);

    getchar();

    getchar();

    SPI_SlaveContinueReadStop(DevHandle[0],SPIIndex);

#else

    while(true)

    {

        unsigned char DataBuffer[40960];

        int DataNum = SPI_SlaveReadBytes(DevHandle[0],SPIIndex,DataBuffer,0);

        if(DataNum > 0){

            fwrite(DataBuffer,1,DataNum,pFile);

            FileSize += DataNum;

            printf("Get data num = %d\n",DataNum);

            printf("FileSize = %d Byte\n",FileSize);

        }else if(DataNum < 0){

            break;

        }

        //延时

#ifndef OS_UNIX

        Sleep(900);

#else

        usleep(900*1000);

#endif

    }

#endif



    USB_CloseDevice(DevHandle[0]);

    fclose(pFile);

    printf("FileSize = %d Byte\n",FileSize);

    printf("Stop receive!\n");

    getchar();

    return 0;

}