I can successfully upload code to my Wroom-32 modules using windows arduino environment. The upload is automatic based on using DTR to activate upload mode and reset the chip. As I don't have RTS available I must then separately reset the module to run the code.
The esptool.py version of the tool seems to indicate that there is a possibility of using soft_reset rather than the hard_reset (DTR / RTS) method which is passed as an --after parameter into esptool.
I want to try this to see if it works but I can't see how to persuade the arduino environment to run the tool with the soft_reset method.
The boards definition doesn't seem to have anything in about that and I also tried setting the environment variable ESPTOOL_AFTER to soft_reset without success.
Is there some method to do this?
esptool reset after upload
Re: esptool reset after upload
Hi Bob,
I don't know the answer about Arduino. However, unfortunately, I can tell you that "--after soft_reset" is only supported on ESP8266:
https://github.com/espressif/esptool/wi ... -operation
There are some peculiarities of the ESP32 ROM code which makes this very hard to do on ESP32.
I don't know the answer about Arduino. However, unfortunately, I can tell you that "--after soft_reset" is only supported on ESP8266:
https://github.com/espressif/esptool/wi ... -operation
There are some peculiarities of the ESP32 ROM code which makes this very hard to do on ESP32.
Re: esptool reset after upload
Turns out I do know the answer for Arduino (searched for "--after" in the arduino-esp32 repo on github).
It's set in platform.txt:
https://github.com/espressif/arduino-es ... rm.txt#L99
All the same, though: soft_reset won't work for ESP32. Sorry.
It's set in platform.txt:
https://github.com/espressif/arduino-es ... rm.txt#L99
All the same, though: soft_reset won't work for ESP32. Sorry.
Re: esptool reset after upload
Thanks. I thought I'd searched for references to --after but somehow missed the one in platforms.txt
I'd seen the comments about not supported in the esptool code but it was a bit ambiguous which is why I had wanted to try it.
I guess I can either live with it (no big deal) or hack a rts connection.
I'd seen the comments about not supported in the esptool code but it was a bit ambiguous which is why I had wanted to try it.
I guess I can either live with it (no big deal) or hack a rts connection.
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