(HELP) Fystec E4 ESP32 grbhal x limit and estop triggered by the same GPIO34 pin

[juansal32]

Hello everyone, I am having a massive issue with this card and grbhal. Both the x axis limit switch and estop get triggered by the limit switch. Both signals use GPIO34 (as per the map file: https://github.com/grblHAL/ESP32/blob/master/main/boards/fysetc_e4_map.h ). I'm brand new to this side of building and do not know how to recompile the file to upload to the ESP32.
I have, however, been able to trace the GPIO pins and have found both GPIO1 and GPIO3 are unused and either can be assigned to control the Estop.
Thanks for the help or advice!

[terjeio]

Are you using I2C?
What is odd about this board, at least according to the schematic, is that the Trinamic drivers is wired to be controlled from an UART, but the RX/TX signals just end up at Header 4. So perhaps one has to add another microcontroller to set TMC2209 parameters? Or is GPIO 1/3 connected to Header4?

[juansal32]

Hey terjeio,
Thanks for such a fast response. Sorry for the delay, it was midnight when I got the response.
I have just flashed the new files from the web builder but now connecting ESP32 and booting into IOSender, I get an alarm 10 and then a fatal warning of "unexpected response received from controller: [MSG: Warning: could not communicate with stepper driver!], exiting." and IOSender ultimately closing.

[terjeio]

Enabling GPIO 1 or 3 as reset/estop input kills the processor so they are unusable.
If reset/estop is to be assigned either feed hold or cycle start has to go. Or perhaps both and use the scond as probe input?

[juansal32]

Oh I understand! For me, the estop is much more crucial than feed hold, and feed start. Your idea makes total sense: the hold feed become the estop and the feed start becomes the probe. I rarely use physical start/halt inputs, always software.

[terjeio]

Try the Web Builder again now.
You have to add jumpers/links on Header4 if not already there for communication with the TMC2209 drivers. And motor power has to be on before they responds. See the board documentation.

[juansal32]

Sorry for the confusion earlier, but I was able to get it downloaded and compiled. Everything seems to be working fantastically! The estop and probe work perfectly! I can not thank you enough for the immense help! You're the best!