PIc 16F639 AFE

[Destovi]

I sent an email to the email account you had listed in your signature page just asking a few more questions, I hope that is allright

thanks again

[Destovi]

Sorry Bruce I was a bit too hasty in giving up last night, I was just getting a bit frusterated as the UHF was called, it felt like a hundred times, in every file. I am currently tracing my way through the transponder_demo code and I am looking at the main function, when a receive event has occured it calls the message handler function. I was looking through there and all of the LF talkback functions were commented out, and replaced with UHF transmission ones. I believe reversing this will enable the LF talkback portion of the code. The main function then checks to see if any buttons have been pressed, I won't be implementing these functions so I don't think the button_handler code will be an issue. The main function then puts the device in idel mode which I believe is just the UHF portion, but as I am not using this It shouldn't be a problem. So as far as the transponder code goes I believe I have a better understanding of that now.

near the top it says:
#define REC_EVENT 4; The number of the PORTA pin the LFDATA output is connected to
on my schematic lfdata is connected to RC3 not to porta I think porta is used for the UHF but not 100% sure

This might be a stretch now but if I make these changes so that the return message is sent by LF instead of RF, can I just leave all the rest of the code the same? (not going through line by line and removing all of the RF implementations or is that going to jam the program?)

sorry again for my email last night it was sent in haste, I do want to understand how this PKE system works I just need a bit of guidance