Powers up running reflow profile about t-962-improvements HOT 6 CLOSED

Hmm, that's not happening with my oven, and no it's not intentional. I know what is causing it though. There's a capacitor soldered in parallel with the S button to simulate a keypress during power on it seems. Mine just seems to be a bit smaller or it's the fact that my 1-wire initialization takes longer. I will fix this shortly (ignoring keypresses for a short while during power up). Thanks for letting me know!

from t-962-improvements.

I just committed what I hope will fix your issue.Previously there was a busy wait that masked this problem as key scanning didn't start right away. It seems like someone added a capacitor and a transistor to the S-key to simulate a keypress during poweron(?), but my oven apparently has a shorter capacitor charge time and I haven't seen the issue here.

Does this resolve the issue?

from t-962-improvements.

The new version doesn't do it either. Now I get the logo screen flashing very briefly followed by running the profile.

Would it work to wait inside a blocking loop at power-up until all keys are released? That way you would not have to guess about what the maximum wait time should be to accommodate all possible units.

from t-962-improvements.

That should work, to have keypad_init wait until all keys are released. But I'm curious about how long this wait will be. Apparently it's going to be less than 2 seconds as the old busy-wait solution was working. Code is on master now.

from t-962-improvements.

The new version works great (and without encountering any watchdog timer reboots). Thanks!

I see that if I power up while holding down a button it will reboot about once per second. If there is a hardware version that asserts the button state for longer than that I guess you would see one WDT trip and then it would start up normally.

from t-962-improvements.

Great! And yes, that's how I tested it. As the watchdog trip time is set to 4/3 seconds it's going to trip every 1.33 seconds or so. I don't see that as a major issue. It will get flagged as a WDT restart on the UART but that's about it!

from t-962-improvements.