Advantech PCI-1682U Bedienungsanleitung PDF herunterladen (Seite 82)

PCI-1680U/1682U User Manual 76

4.7.5.3 Write code

1. Add the following code to Button:

private void button1_Click(object sender, System.EventArgs e)

{

uint hDevice = 0;

bool result;

int dwOutLen=0;

int lpSecurityAttributes=0;

AdvCan.OVERLAPPED ov =new AdvCan.OVERLAPPED();

AdvCan.CanStatusPar_t CanStatus = new AdvCan.CanStatusPar_t();

AdvCan.Command_par_t cmd =new AdvCan.Command_par_t ();

//Open Can Port "CAN1".

//You can also change "CAN1" to a port's name which you have

installed.

hDevice = AdvCan.CreateFile("\\\\.\\can1",AdvCan.GENERIC_READ +

AdvCan.GENERIC_WRITE, 0, lpSecurityAttributes, Adv-

Can.OPEN_EXISTING, AdvCan.FILE_ATTRIBUTE_NORMAL + Adv-

Can.FILE_FLAG_OVERLAPPED, 0);

if( hDevice == 0xffffffff )

{

MessageBox.Show("Open CAN port Error!");

return;

}

//Get Can port status.

result = AdvCan.DeviceIoControl(hDevice, Adv-

Can.CAN_IOCTL_STATUS,ref cmd, 0,ref CanStatus,Marshal.SizeOf (Can-

Status),ref dwOutLen,ref ov);

if( !result )

{

MessageBox.Show("GetStauts Error!");

return;

}

textBox1.Text = "Baud rate = " + CanStatus.baud .ToString();

textBox2.Text = "Accept code = " + CanStatus.acceptancecode

.ToString("X2");

textBox3.Text = "Mask code = " + CanStatus.acceptancemask

.ToString("X2");

textBox4.Text = "Self recevie = " + CanStatus.selfreception

.ToString();

textBox5.Text = "Read TimeOut = " + CanStatus.readtimeout

.ToString();

textBox6.Text = "Write TimeOut= " + CanStatus.writetimeout

.ToString();

result = AdvCan.CloseHandle( hDevice ); //Close the CAN port

if (! result )

{

MessageBox.Show ("GetStauts Error!");

return;

}

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