WX Bricked
cheezus
Posts: 301
So it seems as if I've bricked my WX module. I've tried resetting by quickly (and slowly) pulling PGM pin low. Tried a few other things with no success. So I resigned myself to uploading new firmware via serial but I'm stuck at building esp-open-sdk. I've tried for the last 2 days to get the build to complete but it always seems to be something. Short of loading an old version of Debian onto one of the development systems I have laying around (much easier said than done) I was wondering if the community has any suggestions?
When the WX boots, i get a bunch of garbage in the terminal (propeller serial) then it repeatedly tries to boot second stage loader (I think)
[code]
ets Jan 8 2013,rst cause:4, boot mode:(3,2)
wdt reset
load 0x40100000, len 2592, room 16
tail 0
chksum 0xf3
load 0x3ffe8000, len 764, room 8
tail 4
chksum 0x92
load 0x3ffe82fc, len 676, room 4
tail 0
chksum 0x22
csum 0x22
2nd boot version : 1.7(5d6f877)
SPI Speed : 80MHz
SPI Mode : QIO
SPI Flash Size & Map: 16Mbit(512KB+512KB)
jump to run user1 @ 1000
▒▒▒▒8▒n▒▒r▒▒▒n▒b
▒
▒l`▒Ē▒▒▒▒b▒r▒n▒c▒8▒▒
r▒▒▒▒▒8▒▒▒
▒
r▒▒ܷ))RR▒
[/code]
Please tell me there's an easier solution (or someone has the separate binaries laying around somewhere) since i can't seem to get the SDK built on debian 12. Any help greatly appreciated!
Comments
There is pre-built code out there that just requires loading.
Did you check the github page?
Parallax-ESP
It's been a while since I loaded code on that module. Have moved on to the ESP32.
Mike
From my understanding, the github only has sources, not Pre-Compiled binaries that I can just flash. The only binary that I'm aware of is the over-the-air update which I don't think can be flashed from a serial interface. I could be wrong and please someone let me know if I am.
Does the attached help ?
That's exactly what I was looking for, unfortunately after flashing the serial firmware (successfully) I'm still not able to see the wx wifi AP. I tried several methods of flashing, including using the included .bat as well as the online esp tool. I'm at a loss for why nothing is working.
The ASC led is constant off and I'm not seeing the boot messages I was previously, just garbage output. I've tried several baud rates and it's all garbage. I do get something from the first stage boot when PGM pulled low from boot. Toggling PGM low 4x does nothing. I'm begging to think this WX module is a lost cause.
I've ordered a new WX sip module but it would be really nice to recover this one as a backup. Thanks again for all the help, you guys are awesome 👍
Some of these kind of modules use a lot of power… have seen recent cases where serial garbage was result of not enough power..
Boot Loader baud rate for an ESP01 is 74880. Not in the list of baud rates.
Mike