search

thorrak / brewflasher

Standalone firmware flasher for Brewing-related ESP8266/ESP32 firmware
Other
61 stars 8 forks source link

Does BrewFlasher support the latest Heltec ESP32 Wifi kits? #42

Closed fkroepfl closed 7 months ago

fkroepfl commented 7 months ago

According to the TiltBridge documentation, a Heltec ESP32 WiFi kit was purchased.

As can be seen on the Heltc homepage, the V3 is currently being sold.

When trying to flash the TiltBridge firmware, the following error message appears.

Note: Changing the speed does not change anything. The USB cables used are data cables.

Check the firmware list before the download starts...
Downloading firmware...
Downloading partitions file...
Downloading SPIFFS/LittleFS file...
Downloading bootloader file...
Downloading otadata file...
Downloading main firmware file...
Download abgeschlossen!

Esptool command: esptool.py --port /dev/cu.usbserial-0001 --chip esp32 --baud 115200 --before default_reset --after hard_reset write_flash 0x10000 /private/var/folders/bd/tdd902m93mgckswr83knj_l40000gn/T/firmware.bin 0x8000 /private/var/folders/bd/tdd902m93mgckswr83knj_l40000gn/T/partitions.bin 0x1000 /private/var/folders/bd/tdd902m93mgckswr83knj_l40000gn/T/bootloader.bin 0x330000 /private/var/folders/bd/tdd902m93mgckswr83knj_l40000gn/T/spiffs.bin 0xe000 /private/var/folders/bd/tdd902m93mgckswr83knj_l40000gn/T/otadata.bin --erase-all -fs detect

esptool.py v4.7.0
Serial port /dev/cu.usbserial-0001
Connecting....
Firmware flash failed. esptool reports an error.

Try the flash again, or flash at a slower speed.
thorrak commented 7 months ago

Yes, BrewFlasher supports the Heltec ESP32 WiFi kits -- but I doubt that means what you would hope to hear.

Unfortunately, the WiFi Kit v3 is based on the ESP32-S3 which is a completely different processor than the "base" ESP32. While the ESP32-S3 is the closest thing to a direct successor to the ESP32, library compatibility is not the same, and the ESP32-S3 allows board manufacturers to be remove the dedicated USB-to-UART chip which presents some additional quirks when trying to flash for the first time. Only projects that target the ESP32-S3 (currently just Kegmon and Gravitymon in BrewFlasher) can be used with this board.

thorrak commented 7 months ago

I should have mentioned, a full comparison is available from Espressif here:

https://docs.espressif.com/projects/esp-idf/en/v5.0/esp32s3/hw-reference/chip-series-comparison.html

The fact that they chose to use the "ESP32" naming convention for everything is one of the more frustrating things they've done in recent years!

fkroepfl commented 7 months ago

Thank you very much for the explanations. In fact, I could have mentioned the abbreviation "V3" in the subject line 😉 It looks like I haven't made the best choice so far when buying my ESP32 OLED boards for TiltBridge. 🤔