Error with ESP32-C3 (failed to target RAM)

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#Error with ESP32-C3 (failed to target RAM)

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bpmct 03/14/2023 10:16 PM

Hi - I'm running into this issue with my c3. Any ideas?

➜  jaguar jag flash --chip esp32c3
Flashing device over serial on port '/dev/cu.usbmodem552E0028621' ...
esptool.py v3.3.2-dev
Serial port /dev/cu.usbmodem552E0028621
Connecting....
Chip is ESP32-C3 (revision 3)
Features: Wi-Fi
Crystal is 40MHz
MAC: 10:91:a8:36:3f:08
Uploading stub...

A fatal error occurred: Failed to write to target RAM (result was 01070000: Operation timed out)
Error: exit status 1

bpmct 03/14/2023 10:19 PM

Hmm... seems to work on another board. Could totally be something defective on my other board

bpmct 03/14/2023 10:57 PM

This seems to happen relatively consistently but I managed to flash one of my boards

bpmct 03/14/2023 11:13 PM

Ok I'm trying on a Linux machine and it works for every device.

floitsch 03/14/2023 11:13 PM

This is happening during flashing. Right?

bpmct 03/14/2023 11:13 PM

Yep

floitsch 03/14/2023 11:13 PM

We are using the standard esptool under the hood.

bpmct 03/14/2023 11:14 PM

Super interesting... I'll see if there's some issue with esptool, my system, and these boards

floitsch 03/14/2023 11:14 PM

We just bundle it up with the pyinstaller

bpmct 03/14/2023 11:14 PM

Anyways it works fine on my Linux machine so I'll just use that for flashing

floitsch 03/14/2023 11:17 PM

Sounds good.
We will continue listening to feedback. Maybe we are using a version that is older, or the windows executable isn't working right.
If more users run into it we will investigate a bit further.
Unfortunately none of us use Windows, so we aren't always seeing Windows issues early.

bpmct 03/15/2023 12:15 AM

Ah - I saw it on MacOS. But yeah I will also do some digging and keep you posted if I find anything. But I'm not blocked or anything at all, so it's no big deal for me(edited)

floitsch 03/15/2023 05:36 AM

Could you check which usb-serial converter chip the failing board uses?

floitsch 03/15/2023 05:37 AM

According to https://github.com/espressif/esptool/issues/280 it could be a driver issue.

A fatal error occurred: Failed to write to target RAM (result was 0...

(Please delete any lines which don't apply.) Operating system: Windows 10 Python version: 3.64 ESP hardware in use: ESP8266 on Itead SonOff smart WiFi switch (basic) Detecting chip type... ...

floitsch 03/15/2023 05:38 AM

Especially for CHxxx chips.

floitsch 03/15/2023 05:41 AM

I think this is the official way of installing the ch driver: https://github.com/WCHSoftGroup/ch34xser_macos

GitHub - WCHSoftGroup/ch34xser_macos: MacOS USB driver for USB to s...

MacOS USB driver for USB to serial chip ch340, ch341, ch342, ch343, ch344, ch9101, ch9102, ch9103, etc - GitHub - WCHSoftGroup/ch34xser_macos: MacOS USB driver for USB to serial chip ch340, ch341, ...

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