esp826601s模块刷入踩坑Deviceisbusy笔记

简书链接:esp826601s模块刷入踩坑Deviceisbusy笔记
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下载固件
https://micropython.org/download/ESP8266_GENERIC/

E:\Software\esp32fireware>esptool --chip esp8266 --port COM6 erase_flash
esptool.py v4.6.2
Serial port COM6
Connecting....
Chip is ESP8266EX
Features: WiFi
Crystal is 26MHz
MAC: d8:bf:c0:fd:7e:b7
Uploading stub...
Running stub...
Stub running...
Erasing flash (this may take a while)...
Chip erase completed successfully in 4.7s
Hard resetting via RTS pin...

E:\Software\esp32fireware>esptool --chip esp8266 --port COM6 --baud 460800 write_flash -z 0x1000   ESP8266_GENERIC-20231
005-v1.21.0.bin
esptool.py v4.6.2
Serial port COM6
Connecting....
Chip is ESP8266EX
Features: WiFi
Crystal is 26MHz
MAC: d8:bf:c0:fd:7e:b7
Uploading stub...
Running stub...


Stub running...
Changing baud rate to 460800
Changed.
Configuring flash size...
Flash will be erased from 0x00001000 to 0x0009dfff...
Compressed 641212 bytes to 425908...
Wrote 641212 bytes (425908 compressed) at 0x00001000 in 11.9 seconds (effective 431.6 kbit/s)...
Hash of data verified.

Leaving...
Hard resetting via RTS pin...

发现刷进去了连不上，

新版本esptool没有指定刷入模式的选项，而且开发工具也不能通过ui刷入，所以降级3.3.1

esptool --chip esp8266 --port COM6 --flash_mode dout --baud 460800 write_flash -z 0x1000 ESP8266_GENERIC-20231005-v1.21.0.bin

或者

下图是下载模块和esp8266的模块，因此可以得出一个结论，知道最下面3个孔代表 gnd io2 io0 rxd
第一排 txd en(5v) rst 3v3