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Re: Intergas Timing Issue
Posted: Mon Oct 14, 2013 9:34 pm
by jwspuij
One error=1 per thermostat message. When I enter It=0 i get nothing from the boiler anymore.
Funny thing is: i flashed 3.4 and that one works perfectly, burner on/off, doesn't matter.
Re: Intergas Timing Issue
Posted: Mon Oct 14, 2013 10:42 pm
by hvxl
That doesn't sound right. The default (IT=1) suppresses error01 messages. IT=0 reports them again. With 3.4 you should still see errors for the non-opentherm parts.
Re: Intergas Timing Issue
Posted: Tue Oct 15, 2013 12:04 am
by jwspuij
I'm sorry, then it's indeed the other way around. I tried both IT=1 and IT=0. I also tried about every voltage level the thermostat still was responding to.
I know it sounds strange, but with 3.4 it works. No error 01's at all. Diagnose.hex and 4.0a06 and 4.0a10 all report error 01 consistently or nothing with IT=1. (IT=1 of course only with 4.0 not with diagnose.hex).
Re: Intergas Timing Issue
Posted: Tue Oct 15, 2013 12:25 am
by jwspuij
I've included the log file from the 3.4 firmware. It include's a print statement of the firmware version and both IT=1 and IT=0. As you can see the firmware happily continues running with either IT=0 or IT=1. Can't it be that the stricter timing in this firmware makes it ignore the 75us spikes in the signal?
Re: Intergas Timing Issue
Posted: Wed Oct 16, 2013 11:21 pm
by hvxl
If I run the simulator with the timings you provided I get Error 03 reports as expected, but after that it is also able to decode the opentherm message from the boiler. So I don't understand why you don't see those. Do you have some logs of firmware 4.0a10 in combination with this new main board?
Re: Intergas Timing Issue
Posted: Sat Oct 26, 2013 2:47 pm
by hvxl
I made some changes in
firmware 4.0a11. Can you check if that improves things?