I would have to check with my software eng. I dont write code , it could be we did some stuff like that during testing .
This happens on long runs so Im thinking its an overload or ?
ok I hooked up a mini scope to the program pin with a low trigger , the Teensy went into prog=ram mode again after 45 min. with NO low on the program pin , Im running a timer and display in countdown mode , this happens with longer run times...
changed the resistor to 100 ohms pullup added .0.1uf cap across resistor and changed the lines to RG174 shielded cable , seems to be ok now except on really long runs like 5 hrs then I still get failures bit that could be something else, seems to...
Ok we have a external program switch on our units the wires are 10 inches + so Noise can be a real issue , so far the 150 ohm pullup has worked ( still testing ) I had a 1k res to 3.3v , after going to 100 ohms the noise issue seems to have gone away
After looking at the schematic there is NO pullup resistor on the switch ,in a high noise environment this can be an issue for sure ! I will add a 150 ohm res. to the program and 3.3v lines and test it out. ( I assume the chip has a 10k or so...
so no reason it would do that because of having the ethernet chip on it ?? we could add/try the 100 ohm pullup, I have a 4.1 with no ethernet that Im going to try , this issue showed up right about the time we got units with ethernet , this 4.1...
Hey Paul I have an issue with a Teensy 4.1 , we had to change to 4.1 from 3.5 during covid ( lack of supply ) we recompiled the code for the 4.1 in VS with the Teensy extension , most times it is fine , I do have some that seem to be going into...