<![CDATA[MicroPython on M5Stamp-C3]]>No idea why the ESP32-C3 needed to be written starting at 0x0, rather than 0x1000, but sure enough it did. I couldn't figure out why nothing could seem to be written successfully to my STAMP-C3, but basically nothing was working. Now, thanks to a blog post I found, it's successfully running the generic ESP32-C3 MicroPython binary.

Successful esptool.py commands:

esptool.py -p COMx -b 1500000 --before default_reset erase_flash
esptool.py -p COMx -b 1500000 --before default_reset write_flash -z 0x0 esp32c3-20210902-v1.17.bin

Result on REPL:

ESP-ROM:esp32c3-api1-20210207
Build:Feb 7 2021
rst:0x1 (POWERON),boot:0xc (SPI_FAST_FLASH_BOOT)
SPIWP:0xee
mode:DIO, clock div:1
load:0x3fcd6100,len:0x121c
load:0x403ce000,len:0x744
load:0x403d0000,len:0x26c4
entry 0x403ce000
MicroPython v1.17 on 2021-09-02; ESP32C3 module with ESP32C3
Type "help()" for more information.

]]>https://community.m5stack.com/topic/3733/micropython-on-m5stamp-c3RSS for NodeMon, 16 Mar 2026 09:55:55 GMTFri, 12 Nov 2021 04:57:26 GMT60<![CDATA[Reply to MicroPython on M5Stamp-C3 on Tue, 01 Feb 2022 19:49:06 GMT]]>@mlindholm would you share the link to that blog post?. Thanks.

]]>https://community.m5stack.com/post/16468https://community.m5stack.com/post/16468Tue, 01 Feb 2022 19:49:06 GMT<![CDATA[Reply to MicroPython on M5Stamp-C3 on Fri, 12 Nov 2021 10:24:23 GMT]]>The difference is because the C3 uses a RISC V core and not an esp32 core.

]]>https://community.m5stack.com/post/15448https://community.m5stack.com/post/15448Fri, 12 Nov 2021 10:24:23 GMT<![CDATA[Reply to MicroPython on M5Stamp-C3 on Fri, 12 Nov 2021 07:11:55 GMT]]>Hello @mlindholm

thank you for sharing. The bootloader address is different between ESP32 and ESP32c3.

  • ESP32: Bootloader is located at the address 0x1000 in the flash. See here.
  • ESP32c3: Bootloader is located at the address 0x0 in the flash. See here.

Thanks
Felix

]]>https://community.m5stack.com/post/15446https://community.m5stack.com/post/15446Fri, 12 Nov 2021 07:11:55 GMT