Oznog
Active Member
Well, I tried searching the forum and found too much junk and no particular answer. So I'll just ask.
I want to do a bootloader with the MAX232 with the PIC18. So I need to add the LVP option to the fuse bits, right?
I looked through the spec sheet and saw the LVP bit commits RB5 to "Controlling Program Mode Entry". But the MAX232 circuits I see connect to RC6/RC7, and don't seem to involve RB5 at all.
Am I wrong about the LVP bit? Does the bootloader somehow program without it? If not, how does the RB5 pin get handled?
I want to do a bootloader with the MAX232 with the PIC18. So I need to add the LVP option to the fuse bits, right?
I looked through the spec sheet and saw the LVP bit commits RB5 to "Controlling Program Mode Entry". But the MAX232 circuits I see connect to RC6/RC7, and don't seem to involve RB5 at all.
Am I wrong about the LVP bit? Does the bootloader somehow program without it? If not, how does the RB5 pin get handled?