My company is manufacturing device which is on market right now.
It is embedded with ESP8285 chip which is used with AT command firmware only right now. Each ESP is programmed on production.
For R&D action we would like to use MicroPython interpreter on ESP8285, but we could not get to the REPL stage.
We are programming with esptool and DOUT flash config.
We have experience with uploading MicroPython on ESP8266 so we know the process. We have succesfully used ESP8266 boards with MicroPython on the other RD project.
Now to the problem:
After Upload try on ESP8285 we reboot it and we get failed boot logs:
Code: Select all
17:38:47.694> ets Jan 8 2013,rst cause:2, boot mode:(3,7)
17:38:47.694>
17:38:47.694> load 0x40100000, len 31100, room 16
17:38:47.769> tail 12
17:38:47.769> chksum 0xe3
17:38:47.769> ho 0 tail 12 room 4
17:38:47.769> load 0x3ffe8000, len 1084, room 12
17:38:47.769> tail 0
17:38:47.769> chksum 0xc0
17:38:47.769> load 0x3ffe8440, len 3248, room 8
17:38:47.769> tail 8
17:38:47.769> chksum 0xe1
17:38:47.769> csum 0xe1
17:38:47.769> #0 ets_task(40209c10, 31, 3ffe9100, 4)
17:38:47.968> #1 ets_task(4021e1ec, 32, 3ffeab80, 34)
17:38:47.968> #2 ets_task(4021d224, 20, 3ffea900, 3)
17:38:47.968> rf cal sector: 251
17:38:47.968> rf[112] : 00
17:38:47.968> rf[113] : 00
17:38:47.968> rf[114] : 01
17:38:47.968>
17:38:47.968> SDK ver: 2.0.0(5a875ba) compiled @ Aug 9 2016 15:12:27
17:38:47.968> phy ver: 1055, pp ver: 10.2
17:38:47.968>
17:38:47.968> mode : softAP(62:01:94:d7:1a:62)
17:38:47.968> add if1
17:38:47.968> #3 ets_task(4020edc0, 29, 3fff9150, 1é)ׇŇŰXE˘@Ť@ŤTgÍ%@NáCĆ‹^ËHĆ‹ÜA͢dζĆ<0>CĆ‹^ËHĆ‹ÜA͢dζĆ<0>HĐ!ŚŘQRhK W
…É%-A-1%l)1‹bâ)Q®Yčz‡čb˛«ď fđ)Y*Ř@¨~‹ęA*!Q+ţôy«8ˇ=ˇ
We have tried
-many copies of the device
-few microPython firmware versions (from latest to 1.8.7)
Device seems to behave always the same. Rubbish near the end is sometimes different, but I don't think it matters.
But we are able to upload espressif AT firmware on device with no problem (We use ESP8285 DOWNLOAD TOOL from Espressif)
I am eager to hear from You!