ESP-01 not working after firmware update download/flash
ESP-01 not working after firmware update download/flash
Postby Abomin3V3L » Sat Sep 21, 2019 7:43 am
Hi. I am new in this forum.
I am developing products which use the ESP-01 module (the little black board). The products use PIC32MX microcontrollers and currently I am using the PIC/ESP-01 as webserver.
I have 7 modules here (8Mbit flash - 25Q80A) and now I want to update the firmware of them. When I send AT+GMR command to them they respond with the following:
"AT version:0.40.0.0(Aug 8 2015 14:45:58)..SDK version: 1.3.0..Ai-Thinker Technology Co.,Ltd...Build 1.3.0.2 Sep 11 2015 11:48:04..OK"
I have tried to flash 2 of the 7 modules, with different addresses on the "ESP8266 DOWNLOAD TOOL V3.6.6". During the download the blue led was blinking for both.
In the pictures below are shown the 2 combinations of addresses that I have tried, one combination for each module.
To flash them, I have tied GPIO0 to GND. After download process showed FINISH on the ESP8266 DOWNLOAD TOOL I did removed GPIO0 from GND, did a power down and after some seconds a power up. From this point on the modules seems to be not working anymore with my current application, they do not respond to AT commands anymore. The blue led blink one time when I power the circuit, and the module is also outputing a 26MHz signal on GPIO0 (strange).
As I have a debug UART port on the PIC32MX to communicate to the PC, I have set the baudrate of the PIC32MX-ESP-interface UART to 74880bps, and when I power the circuit, both modules are sending the following to the PIC32MX:
"..ets Jan 8 2013, rst cause:1, boot mode: (3,6) ....ets_main.c .. ets Jan 8 2013, rst cause:2 boot mode: (3,6)....ets_main.c"
PICTURES: see screen_1.png and screen_2.png attached...
What files I used?
I entered here: https://github.com/espressif/ESP8266_NO ... master/bin
Then downloaded these:
- boot_v1.7.bin
- blank.bin
- esp_init_data_default_v08.bin
Then I entered on this subfolder:
/at/1024+1024
And downloaded this:
user1.2048.new.5.bin
OBS: Its not a power supply issue, I have a good layout with good ground plane, large tracks for 3.3V signal, and have 2x 22uF/10V/0805 caps very close to the VCC pin of the module in the PCB.
Are my ESP-01 modules damaged now?
What I am doing wrong? And how to do correctly?
Regards.
Re: ESP-01 not working after firmware update download/flash
Postby dinesh.thanth » Wed Jan 29, 2020 10:55 pm
ets Jan 8 2013,rst cause:1, boot mode:(3,6)
load 0x40100000, len 1856, room 16
tail 0
chksum 0xef
load 0x00000000, len 0, room 8
tail 0
chksum 0xef
load 0x00000000, len 0, room 0
tail 0
chksum 0xef
csum 0xef
csum err
ets_main.c
Thanks,
Dinesh
Re: ESP-01 not working after firmware update download/flash
Postby gtc » Fri Feb 07, 2020 11:26 am
I am no longer able to get a "Ready" from the AT command
Thanks for any info you have
Re: ESP-01 not working after firmware update download/flash
Postby Her Mary » Fri Feb 28, 2020 11:11 am
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Re: ESP-01 not working after firmware update download/flash
Postby haroldhulbert » Mon Jun 08, 2020 2:40 pm
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Re: ESP-01 not working after firmware update download/flash
Postby ashelyblossom » Tue Jun 16, 2020 2:24 am
haroldhulbert wrote:I was facing the same problem. I thought that it was a hardware error so I complain from where I bought ESP-01. They replace it and also there engineer explain me each and everything related to the device and the solution. I suggest you to buy a new ESP-01 from Reecoupons.
this is one of the helping posts I have ever seen. Thanks a lot because of your I had resolved this error appears on the server all the time.
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