d12_ctl.c

LabwindowsCVI编写的USB应用程序

#include <cvirte.h>		
#include <userint.h>
#include "D12_ctl.h"
#include <ansi_c.h>
#include <windows.h>
#include <formatio.h>

static int panelHandle;

/*-------------------------------------------------------------------------------------------------------*/	
typedef int DLLEXPORT (*DLLCdeclFunction)(int pipenum,unsigned char *recbuffer,int len,int waittime);//定义函数指针 
/*-------------------------------------------------------------------------------------------------------*/
HMODULE EasyUsb_dll; 
DLLCdeclFunction WriteData_f; 
DLLCdeclFunction ReadData_f;

unsigned char led1_code[6] = {0x78,0x56,0x34,0x12,0xf1,0xf2};
unsigned char led2_code[6] = {0x78,0x56,0x34,0x12,0xf2,0xf2};
unsigned char led3_code[6] = {0x78,0x56,0x34,0x12,0xf3,0xf2};
unsigned char ledo_code[6] = {0x78,0x56,0x34,0x12,0xf4,0xf2};

unsigned char read_data[100] = {0,1,2,3,4,5,};
unsigned char disp_data[100];
unsigned char xmit_data[100];
unsigned char xmit_no = 0;

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

	if (InitCVIRTE (0, argv, 0) == 0)
		return -1;	/* out of memory */
	if ((panelHandle = LoadPanel (0, "D12_ctl.uir", PANEL)) < 0)
		return -1;
	DisplayPanel (panelHandle);

	/*-------------------------------------------------------------------------------------------------------*/	
    EasyUsb_dll = LoadLibrary("EasyUSB.dll");	//装载动态链接库mydll.dll 
    if (EasyUsb_dll != NULL) {						//成功装载动态链接库mydll.dll  
		WriteData_f = (DLLCdeclFunction)GetProcAddress(EasyUsb_dll, (LPCSTR)"WriteData");		//取函数指针地址
		ReadData_f = (DLLCdeclFunction)GetProcAddress(EasyUsb_dll, (LPCSTR)"ReadData");			//取函数指针地址
		if (WriteData_f == NULL)
			MessagePopup ("CVI MessagePopup ", "WriteData is not in the dll library");
		if (ReadData_f == NULL)
			MessagePopup ("CVI MessagePopup ", "ReadData is not in the dll library");
	} else {
		MessagePopup ("CVI MessagePopup ", "load EasyUSB.dll err,please cheak");
	}
	
	RunUserInterface ();
	DiscardPanel (panelHandle);
	if (EasyUsb_dll != NULL)
		FreeLibrary(EasyUsb_dll);//卸载动态链接库mydll.dll
	return 0;
}

int CVICALLBACK PanelCallBack (int panel, int event, void *callbackData,
		int eventData1, int eventData2)
{
	switch (event)
	{
		case EVENT_GOT_FOCUS:

			break;
		case EVENT_LOST_FOCUS:

			break;
		case EVENT_CLOSE:
			QuitUserInterface (0);
			break;
	}
	return 0;
}

int CVICALLBACK LEDOffCallBack (int panel, int control, int event,
		void *callbackData, int eventData1, int eventData2)
{
	int ret;
	switch (event)
	{
		case EVENT_COMMIT:
			ret = WriteData_f(1, ledo_code, 6, 1000);//调用dll函数!!!
			if(ret != 6 )
					MessagePopup("D12_ctl", "Transmit err...");
			break;
	}
	return 0;
}

int CVICALLBACK LED3CallBack (int panel, int control, int event,
		void *callbackData, int eventData1, int eventData2)
{
	int ret; 
	switch (event)
	{
		case EVENT_COMMIT:
			ret = WriteData_f(1, led3_code, 6, 1000);//调用dll函数!!!
			if(ret != 6 )
				MessagePopup("D12_ctl", "Transmit err...");
			break;
	}
	return 0;
}

int CVICALLBACK LED2CallBack (int panel, int control, int event,
		void *callbackData, int eventData1, int eventData2)
{
	int ret; 
	switch (event)
	{
		case EVENT_COMMIT:
			ret = WriteData_f(1, led2_code, 6, 1000);//调用dll函数!!!
			if(ret != 6 )
				MessagePopup("D12_ctl", "Transmit err...");
			break;
	}
	return 0;
}

int CVICALLBACK LED1CallBack (int panel, int control, int event,
		void *callbackData, int eventData1, int eventData2)
{
	int ret;
	switch (event)
	{
		case EVENT_COMMIT:
			ret = WriteData_f(1, led1_code, 6, 1000);//调用dll函数!!!
			if(ret != 6 )
				MessagePopup("D12_ctl", "Transmit err...");
			break;
	}
	return 0;
}


int CVICALLBACK WREP2_CallBack (int panel, int control, int event,
		void *callbackData, int eventData1, int eventData2)
{
	int ret;
	switch (event)
	{
		case EVENT_COMMIT:
			ret = WriteData_f(1, xmit_data, 6, 1000);//调用dll函数!!!
			if(ret != 6 )
				MessagePopup("D12_ctl", "Transmit err...");
			break;
	}
	return 0;
}

char msg[100];
int CVICALLBACK RDEP2_CallBack (int panel, int control, int event,
		void *callbackData, int eventData1, int eventData2)
{
	int i;
	int k = 0;
	int read_num;
	int this_num;
	switch (event)
	{
		case EVENT_COMMIT:
			read_num = ReadData_f(0, read_data, 6, 1000);
			if((read_num == 6) && (read_data[0] == 0x01) && (read_data[1] == 0x02) && (read_data[2] == 0x03) && (read_data[3] == 0x04)) {
				this_num = read_data[5];
				read_num = ReadData_f(2, read_data, this_num, 1000);
				if(read_num <= 0)
					MessagePopup("D12_ctl", "Read data err..."); 
				else {
					for(i = 0; i < read_num - 1; i++) {
						if(k == 16) {
							Fmt (msg, "%x \n", read_data[i]);
							SetCtrlVal (PANEL, PANEL_RCV_BOX, msg);
							k = 0;
						} else {
							Fmt (msg, "%x ", read_data[i]);
							SetCtrlVal (PANEL, PANEL_RCV_BOX, msg);
							k++;
						}
					}
					Fmt (msg, "%x\n", read_data[i]);
					SetCtrlVal (PANEL, PANEL_RCV_BOX, msg);
				}
			} else {
				MessagePopup("D12_ctl", "no ack");
			}
			break;
	}
	return 0;
}

int CVICALLBACK XMITCallBack (int panel, int control, int event,
		void *callbackData, int eventData1, int eventData2)
{
	int key_vk;
	int key_asc;
	static unsigned char flag = 0;
	static unsigned char tmp;
	switch (event)
	{
		case EVENT_COMMIT:
			break;
		case EVENT_KEYPRESS:
			key_asc = eventData1 & VAL_ASCII_KEY_MASK;
			key_vk = eventData1 & VAL_VKEY_MASK;
			if(flag) {
				flag = 0;
				xmit_data[xmit_no] = (tmp<<4) | key_asc;
				Fmt (msg, "%x",xmit_data[xmit_no]);
				MessagePopup("D12 message",msg);
				xmit_no ++;
			} else {
				tmp = key_asc;
				flag = 1;
			}
			break;
	}
	return 0;
}
 


int CVICALLBACK usb_timer_callback (int panel, int control, int event,
		void *callbackData, int eventData1, int eventData2)
{
	int i;
	int k = 0;
	int read_num;
	int this_num;
	switch (event)
	{
		case EVENT_TIMER_TICK:
			read_num = ReadData_f(0, read_data, 6, 1000);
			if((read_num == 6) && (read_data[0] == 0x01) && (read_data[1] == 0x02) && (read_data[2] == 0x03) && (read_data[3] == 0x04)) {
				this_num = read_data[5];
				read_num = ReadData_f(2, read_data, this_num, 1000);
				if(read_num <= 0)
					MessagePopup("D12_ctl", "Read data err..."); 
				else {
					for(i = 0; i < read_num - 1; i++) {
						if(k == 16) {
							Fmt (msg, "%x \n", read_data[i]);
							SetCtrlVal (PANEL, PANEL_RCV_BOX, msg);
							k = 0;
						} else {
							Fmt (msg, "%x ", read_data[i]);
							SetCtrlVal (PANEL, PANEL_RCV_BOX, msg);
							k++;
						}
					}
					Fmt (msg, "%x\n", read_data[i]);
					SetCtrlVal (PANEL, PANEL_RCV_BOX, msg);
				}
			}
			break;
	}
	return 0;
}