I’m having a number of problems with the admittedly simple SFE Reflow Toaster controller. I got the PIC programmed with Ryan’s code, and it sorta works …
reset is not reliable on power-up … easy enough to fix
no display at all (scope shows activity on all data/control lines)
if I put it in manual mode (long push on select) and hit down to turn on relay, the V at the low side of the relay drops to 2V as expected but the relay doesn’t pull … I find this odd since the relay was clearly pulling in before burning the PIC (when it was in flashy-light mode)
any ideas?
zeke7237:
I’m having a number of problems with the admittedly if I put it in manual mode (long push on select) and hit down to turn on relay, the V at the low side of the relay drops to 2V as expected but the relay doesn’t pull … I find this odd since the relay was clearly pulling in before burning the PIC (when it was in flashy-light mode)
well, that one was relatively easy once I realized that the relay is 12V …
still fighting the display though … buzzed out D and control lines, seem to be stuff there on the 'scope … I wonder if the old griefkit RS-232 logic analyzer still works? 
So if anyone else runs into this (and I don’t see how you can’t), I was able to solve my problems by ripping out all of Ryan’s LCD code and substituting another 4-bit Hitachi driver I found out on the 'net. Cooked a few boards yesterday without any problems.
I’d be happy to forward a hex file if anyone needs it …
Please. I do wish SF would offer to program the chip for another $5. “No programmer required”? Not to whine, but does it work with Bloader/Screamer?
Visual Echo:
Please. I do wish SF would offer to program the chip for another $5. “No programmer required”? Not to whine, but does it work with Bloader/Screamer?
Nope, it’s too big. I’m going to work a bit on paring it down one of these days … at this point I just wanted to get it working
Anyone interested in the mods, download http://w1rt.us/toaster.zip
zeke7237:
Anyone interested in the mods, download http://w1rt.us/toaster.zip
I see a couple of people have already grabbed this, and I realized I forgot to put the hex file inside 
it’s now updated on the server
z