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Xinyuan-LilyGO / T-Internet-COM

MIT License
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Programing Procedure for T-Internet-COM #10

Open unklstewy opened 2 years ago

unklstewy commented 2 years ago

When attempting to program the onboard ESP-WROVER-32 with platformio, I am unable to do so successfully. esptool keeps reporting an error: Retrieving maximum program size .pio/build/esp-wrover-kit/firmware.elf Checking size .pio/build/esp-wrover-kit/firmware.elf Advanced Memory Usage is available via "PlatformIO Home > Project Inspect" RAM: [= ] 12.0% (used 39188 bytes from 327680 bytes) Flash: [==== ] 35.9% (used 752518 bytes from 2097152 bytes) Building .pio/build/esp-wrover-kit/firmware.bin esptool.py v3.1 Merged 1 ELF section Configuring upload protocol... AVAILABLE: esp-prog, espota, esptool, ftdi, iot-bus-jtag, jlink, minimodule, olimex-arm-usb-ocd, olimex-arm-usb-ocd-h, olimex-arm-usb-tiny-h, olimex-jtag-tiny, tumpa CURRENT: upload_protocol = esptool Looking for upload port... Auto-detected: /dev/cu.usbmodem54350137791 Uploading .pio/build/esp-wrover-kit/firmware.bin esptool.py v3.1 Serial port /dev/cu.usbmodem54350137791 Connecting....... Chip is ESP32-D0WD-V3 (revision 3) Features: WiFi, BT, Dual Core, 240MHz, VRef calibration in efuse, Coding Scheme None Crystal is 40MHz MAC: e8:31:cd:38:7c:84 **Uploading stub...

A fatal error occurred: Failed to write to target RAM (result was 01070000) * [upload] Error 2

I have followed previous guidance suggesting that maybe the USB cable was bad and switched out multiple cables, or that the TTL USB transceiver was not keeping up with the data rate and attempted to slow the baud rate down gradually to 9600 from 115200. Any speed other than 115200 would fail to connect to the port.

I have tried tying GPIO0 (pin 25) to ground and then pressing reset to put the mcu into 0x02 boot mode and have been able to get the "ready for download" message, but I can not get it to move past the fatal error ' Failed to write to target ram'.

Build Environment: Microsoft Visual Code : Version: 1.69.2 (Universal) PlatformIO: Version Core 6.1.3 Home 3.4.3 OperatingSystem: MacOS Monterey v12.2.1

unklstewy commented 2 years ago

To be clear, I have tried both board=esp32dev and board = esp32-wrover-kit each in their own environments.

LilyGO commented 2 years ago

Please use flash_download_tool to erase the chip of the module.