无法上传固件，报错：A fatal error occurred: Failed to connect to ESP32: No serial data received.

ZFYoung commented 2 years ago

Retrieving maximum program size .pio\build\pico32\firmware.elf Checking size .pio\build\pico32\firmware.elf Advanced Memory Usage is available via "PlatformIO Home > Project Inspect" RAM: [== ] 17.7% (used 57924 bytes from 327680 bytes) Flash: [==== ] 39.7% (used 520333 bytes from 1310720 bytes) Configuring upload protocol... AVAILABLE: cmsis-dap, esp-bridge, esp-prog, espota, esptool, 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... Using manually specified: COM4 Uploading .pio\build\pico32\firmware.bin esptool.py v3.3 Serial port COM4 Connecting......................................

A fatal error occurred: Failed to connect to ESP32: No serial data received. For troubleshooting steps visit: https://docs.espressif.com/projects/esptool/en/latest/troubleshooting.html

固件上传失败，尝试GPIO0短接GND试过了也是这个报错失败，重新焊接后依旧。有人知道怎么解决吗

ZFYoung commented 2 years ago

设备管理器里端口是存在的。驱动更新的官网CP210x_Universal_Windows_Driver.zip版本尝试upload的时候保持GPIO0和GND一直短接也不行。

ZFYoung commented 2 years ago

esp32虚焊导致，重新焊接后ok了

AzureRubia-Guet commented 1 year ago

老哥你这个真的是帮了我大忙，我esp32-wroom-32u也有这个问题，找了半天，最后是按照你的短接gpio0和gnd解决的

peng-zhihui / HoloCubic

无法上传固件，报错：A fatal error occurred: Failed to connect to ESP32: No serial data received. #85