最近一直在忙其他事情，没有跟着教程学习，从昨天开始晚上有时间自己练习一下，一直想着自己做一个串口助手，只有把通信建立起来才能从板卡上读取数据，重复了很多遍才把界面做成下面的样子

串口调试助手主界面

现在能够实现的功能是，点击“打开端口”如果打开串口成功则部分控件自动隐藏，显示关闭端口；如果打开端口不成功，则在对应位置显示错误代码。

串口打开成功

本来想实现的功能还有运行灯，但是添加定时器后，运行特别缓慢，需要再查。

GetCtrlVal (panelHandle, PANEL_RING, &portNum);

GetCtrlVal (panelHandle, PANEL_RING_2, &baudRate);

GetCtrlVal (panelHandle, PANEL_RING_3, &parity);

GetCtrlVal (panelHandle, PANEL_RING_4, &dataBits);

GetCtrlVal (panelHandle, PANEL_RING_5, &stopBits);

ret = OpenComConfig(portNum,"",baudRate,parity,dataBits,stopBits,512,512);

if(ret < 0)

{

portOpenFlag = 0;

// printf("%s\r ",GetRS232ErrorString(ret));

status_open = GetRS232ErrorString(ret);

SetCtrlVal(panelHandle,PANEL_TEXTMSG,status_open);

SetCtrlAttribute (panelHandle, PANEL_TEXTMSG, ATTR_VISIBLE, 1);//显示控件

}

else

{

SetCtrlAttribute (panelHandle, PANEL_RING,ATTR_DIMMED, 1);

SetCtrlAttribute (panelHandle, PANEL_RING_2, ATTR_DIMMED, 1);

SetCtrlAttribute (panelHandle, PANEL_RING_3, ATTR_DIMMED, 1);

SetCtrlAttribute (panelHandle, PANEL_RING_4, ATTR_DIMMED, 1);

SetCtrlAttribute (panelHandle, PANEL_RING_5, ATTR_DIMMED, 1);

// SetCtrlAttribute (panelHandle, PANEL_opencom, ATTR_DIMMED, 1);

SetCtrlAttribute (panelHandle, PANEL_opencom, ATTR_VISIBLE, 0);//隐藏控件

SetCtrlAttribute (panelHandle, PANEL_closecom, ATTR_DIMMED, 0);

status_open = GetRS232ErrorString(ret);

SetCtrlVal(panelHandle,PANEL_TEXTMSG,status_open);

portOpenFlag = 1;

}