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We appreciate your patience as we improve our online experience.
05-16-2014 07:39 AM
Hello, I am new to this forum and wondered if someone may have the answer to a labview problem I am having.
I have written a VI that accesses the serial port of an Embedded PC (Kontron Module) when booting up from a USB boot drive. I am examining the debug output for a particular string output and then selecting different options based upon what Im receiving, such as programming the BIOS by sending out a string value "1" to the port etc. This VI was developed earlier this year and worked perfectly with no errors on this particular pcb. Now though it seems that framing errors are being detected. It isnt the pcb since I have now got one on that I know works. The pcbs come in 2 versions one of which works perfectly and this one that doesnt.
has any one got any ideas as to why this may be happening?
regards
John
05-16-2014 11:00 AM
99% of the time that I see a framing error is due to the Baud Rate being wrong/different. There are many other settings you need to make sure are also correct. It would not surprise me if the serial communications got changed between models without people telling you.
I would also probe the TX and RX lines to make sure they look correct.
05-16-2014 01:07 PM
05-16-2014 01:26 PM
05-16-2014 03:55 PM
05-16-2014 05:08 PM
Works okay with the light bulb on? Time to post some code...