USB3014-应用程序开发

秒速五厘米 2022-10-14 15:45 208阅读 0赞

简介：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3UwMTEzMjk5Njc_size_16_color_FFFFFF_t_70][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3UwMTEzMjk5Njc_size_16_color_FFFFFF_t_70 1][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3UwMTEzMjk5Njc_size_16_color_FFFFFF_t_70 2][]

使用VC6++开发：

出现如下问题

（1）添加对应的头文件

\#include <iostream>  
\#include <string>  
using namespace std;

**\#include <wtypes.h>  
\#include <dbt.h>**

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3UwMTEzMjk5Njc_size_16_color_FFFFFF_t_70 3][]

（2）

libcmt.lib(\_file.obj) : error LNK2005: \_\_\_initstdio already defined in LIBCD.lib(\_file.obj)

LINK : warning LNK4098: defaultlib "LIBCMT" conflicts with use of other libs

设置为多线程DLL

![20210522111345198.png][]

添加setupapi.lib

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3UwMTEzMjk5Njc_size_16_color_FFFFFF_t_70 4][]

忽略libcmt

![20210522111720877.png][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3UwMTEzMjk5Njc_size_16_color_FFFFFF_t_70 5][]![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3UwMTEzMjk5Njc_size_16_color_FFFFFF_t_70 6][]

（3） CyAPI.lib(CyAPI.obj) : error LNK2001: unresolved external symbol \_\_\_security    ...

根本原因是官方的lib需要使用VS2008以上环境开发，如果替换老版的CyAPI.lib可以成功生成但，数据读取结果不一定对。虽然迷恋VC6的小巧，也只能跟换VS2008,Windows

的开发环境版本越高越占内存。

[https://community.cypress.com/t5/Knowledge-Base-Articles/Additional-CyAPI-lib-libraries-besides-Visual-C-2008/ta-p/248218][https_community.cypress.com_t5_Knowledge-Base-Articles_Additional-CyAPI-lib-libraries-besides-Visual-C-2008_ta-p_248218]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3UwMTEzMjk5Njc_size_16_color_FFFFFF_t_70 7][]

（4）其它

\#pragma comment(lib, "test.lib")

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3UwMTEzMjk5Njc_size_16_color_FFFFFF_t_70 8][]

VS2008开发：直接打开开发环境中的参考设计：注意lib路径中的Debug改成lib即可

D:\\Program Files (x86)\\Cypress\\EZ-USB FX3 SDK\\1.3\\application\\cpp\\streamer

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3UwMTEzMjk5Njc_size_16_color_FFFFFF_t_70 9][]

同VC6一样遇到类似问题，需要添加setupapi.lib并设置忽略libcmt，如下：

![20210522145923258.png][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3UwMTEzMjk5Njc_size_16_color_FFFFFF_t_70 10][]

数据发送：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3UwMTEzMjk5Njc_size_16_color_FFFFFF_t_70 11][]

//BeginDataXfer is an advanced method for performing asynchronous IO
    // This example assumes that the device automatically sends back,
    // over its bulk-IN endpoint, any bytes that were received over its
    // bulk-OUT endpoint (commonly referred to as a loopback function)
        //CCyUSBDevice *USBDevice = new CCyUSBDevice(NULL);
    	OVERLAPPED outOvLap, inOvLap;
    	//outOvLap.hEvent = CreateEvent(NULL, false, false, L"CYUSB_OUT");
    	outOvLap.hEvent = CreateEvent(NULL, false, false, "CYUSB_OUT");
    	//inOvLap.hEvent = CreateEvent(NULL, false, false, L"CYUSB_IN");
    	//unsigned char inBuf[128];
    	//ZeroMemory(inBuf, 128);
    	unsigned char buffer[28];
    	LONG length = 28;
        buffer[0] = 0xa0;
        buffer[1] = 0x10;
        buffer[2] = 0x20;
        buffer[3] = 0x30;
    
        buffer[24] = 0xc0;
        buffer[25] = 0x10;
        buffer[26] = 0x20;
        buffer[27] = 0x30;
    	// Request the return data before initiating the loopback
    	//UCHAR *inContext = USBDevice->BulkInEndPt->BeginDataXfer(inBuf, length,&inOvLap);
    	UCHAR *outContext = USBDevice->BulkOutEndPt->BeginDataXfer(buffer, length,&outOvLap);
    	USBDevice->BulkOutEndPt->WaitForXfer(&outOvLap,100);
    	//USBDevice->BulkInEndPt->WaitForXfer(&inOvLap,100);
    	USBDevice->BulkOutEndPt->FinishDataXfer(buffer, length, &outOvLap,outContext);
    	//USBDevice->BulkInEndPt->FinishDataXfer(inBuf, length, &inOvLap, inContext);
    	CloseHandle(outOvLap.hEvent);
    	//CloseHandle(inOvLap.hEvent);

参考：

Cypress USBSuite Application Development Guide Version 1.2.3.20

CyAPI.pdf

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[20210522111345198.png]: /images/20221014/e0b598a7bc6348fe84b6eb7506db09b2.png
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[20210522111720877.png]: /images/20221014/761d1cff96564871a351bcc891389e99.png
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[https_community.cypress.com_t5_Knowledge-Base-Articles_Additional-CyAPI-lib-libraries-besides-Visual-C-2008_ta-p_248218]: https://community.cypress.com/t5/Knowledge-Base-Articles/Additional-CyAPI-lib-libraries-besides-Visual-C-2008/ta-p/248218
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[20210522145923258.png]: /images/20221014/da4a47fe747441dd85e0b8d7294433a1.png
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