error –1073807253 when using the parallel port

[andi654]

I want to use the parallel port and I get the error –1073807253 VI_ERROR_ASRL_FRAMING. does anyone know what that means? when using the serial port the error would mean that it is not configured correctly, but I cant find a vi to configure the parallel port. When sending an empty string no error occurs. Does anyone know the specific requirements for strings send to the parallel port? The aim of the my projekt ist to trigger TTL-pulses from the parallel port.

thanks

[Indiana]

Hi Andi654,

this error arises when using VISA to access a parallel port where pins 11 and 12 of the parallel port are not grounded.

When trying to output to the parallel port it is important to remember that pins 11 and 12 of the parallel port need to be grounded to output properly. Without these two pins grounded the driver will think that the device is busy or has experienced an error and will not output the data.

Regards

[andi654]

Thanks Indiana, you were right. I thougt it was grounded, because I grounded the pins on the other side of the cable. now I grounded them directly on the computer. is it normal that LTP-cables have cross-wireing? Well, I just have to check out the cable now.

[Indiana]

Hi andi654,

here you find further information for programming parallel port in LabVIEW.

Hope it helps