I got a piece of ESP8266 to play with the ink screen and prepared a desktop Todo list. Previously, I focused on the upper level applications. It was the first time to do this kind of thing, and I recorded various problems encountered.
Brush Micropython or other firmware infinite restart flashing blue light
In order to facilitate development, ESP8266 is painted as MicroPython firmware. After the firmware is cleaned, reset and restart. As a result, the blue light of ESP8266 flashes crazily, which means crazy restart.
Connect the serial port tool to the 74880 baud rate, check the boot log, and the crazy flashing blue light restarts the log as follows:
load 0x40100000, len 30736, room 16
tail 0
chksum 0x47
load 0x3ffe8000, len 996, room 8
tail 12
chksum 0x99
ho 0 tail 12 room 4
load 0x3ffe83f0, len 1064, room 12
tail 12
chksum 0xaa
csum 0xaa
rf_cal[0] != 0x05,is 0x00
resolvent
After some searching PlatformIO built by NodeMCU development environment A similar log was found in the article. The above author said that the default configuration file is probably damaged in this case, and the configuration file will be damaged in most cases after the Arduino program is brushed.
According to the tips in this article, I downloaded Lexin's Non OS SDK firmware and the supporting burning tool from Github, and then refreshed ESP8266 to complete the Non OS SDK firmware:
After the write is completed, reset, and then try to write the MicroPython firmware again:
After the completion of writing, reset, and connect to ESP8266 through the serial port tool normally:
