error -1073807194, I must reset computer for run it again (virtual port com)

[Jhonny_jo]

Hello,

I use Labview 8.5, in my systeme I use Microcontroller PIC16F876 with uart peripheral that communicate with FTDI Chip (this chip convert USB to virtual port com).

Labview see this chip as port com. My microcontroller send and receive the data from labview and sometimes I obtained error -1073807194 and I must reset computer for run it again.

What can I do for don't reset computer? I tested to close the port com (with VISA close) and reopen it (with VISA configure serial port) but this does not work!

Thanks in advance.

[muks]

HAve you seen this discussion

[Jhonny_jo]

Hello Muks,

Yes I read this article but I think that I don't have the same problem.

I use MM232R with VCP driver, labview 8.2 and windows XP. I see with labview this chip like virtual port com.

The communication is good beetwen Labview - MM232R and microcontroller but sometimes I lost the connexion and I obtained the error -1073807194.

I don't know if this error is the result of the EMI (Electromagnetic Interference) around the chip FTDI.

When I obtained this error I try to close the communication and reopen the communication but this don't run.

What is the signification of error -1073807194 and why I must close labview and reopen it?

Thanks in advance

[muks]

see this discussion