Try reducing the baud rate ... I have to drop to 460kbps on some third party modules when I get that message. You can also try dropping the flash to 40Mhz.
I reduced the baud rate and the flash frequency, but unfortunately still get the same error.
Search found 3 matches
- Mon Aug 17, 2020 8:57 pm
- Forum: General Discussion
- Topic: esp32-s2: Invalid head of packet (0xC4)
- Replies: 4
- Views: 5271
- Mon Aug 17, 2020 6:36 pm
- Forum: General Discussion
- Topic: esp32-s2: Invalid head of packet (0xC4)
- Replies: 4
- Views: 5271
Re: esp32-s2: Invalid head of packet (0xC4)
Here's the output running --trace. Michaels-MBP:esptool_py michael$ cd /Users/michael/esp/esp-idf/components/esptool_py && /Users/michael/.espressif/tools/cmake/3.16.4/CMake.app/Contents/bin/cmake -D IDF_PATH="/Users/michael/esp/esp-idf" -D ESPTOOLPY="/Users/michael/.espressif/python_env/idf4.2_py2....
- Mon Aug 17, 2020 3:28 am
- Forum: General Discussion
- Topic: esp32-s2: Invalid head of packet (0xC4)
- Replies: 4
- Views: 5271
esp32-s2: Invalid head of packet (0xC4)
When using the dev saola dev board, and flashing via usb either with idf.py or eclipse, I have no issues. However, trying to flash over UART with either the dev board, my own design, or only the esp32-s2 with wires soldered to it I get this error: A fatal error occurred: Invalid head of packet (0xC4...