WIFI bootloop

[ianchi]

Hi, I have a CBU module from a AT/Tongou TO_Q_SY1_JWT that gets into bootloop when adding the WIFI component.

I have flashed many other identical devices with no problem, but this one doesn't start.

I tried with a totally bare config and added a few components, to find the offending one is WIFI

Any suggestion to debug it?

WORKING YAML

substitutions:
  node_id: bare-bk
  verbose_name: "Bare"

esphome:
  #name_add_mac_suffix: true
  name: ${node_id}
  comment: ${verbose_name}
 
preferences:
  flash_write_interval: 1s

bk72xx:
  board: cbu

  framework:
    loglevel: verbose
    debug:
      - wifi
      - ota

logger:
  level: VERY_VERBOSE
  hardware_uart: UART1

status_led:
  pin:
    number: P15
    inverted: true

switch:
  - platform: gpio
    name: ${verbose_name}
    pin: P26
    id: relay
    restore_mode: RESTORE_DEFAULT_ON

binary_sensor:
  - platform: gpio
    id: hard_button
    pin:
      number: P17
      inverted: true
    on_click:
      - switch.toggle: relay
      - output.turn_on: led_red
      - delay: 10s
      - output.turn_off: led_red

output:
  - platform: gpio
    id: led_red
    pin:
      number: P9
      inverted: true

Offending config

Above config boots and works well. It fails if I add:

wifi:
  ssid: MY-SSID
  password: "MyWifiPswd"

Serial Log Output

I [      0.022] logger
[C][status_led:014]: Setting up Status LED...
[I][app:029]: Running through setup()...
[V][app:030]: Sorting components by setup priority...
[VV][scheduler:063]: set_interval(name='', interval=1000, offset=466)
[C][switch.gpio:011]: Setting up GPIO Switch 'Bare'...
[VV][lt.preferences:064]: fdb_kv_get_blob: key: 1274655749, len: 1
[D][switch:016]: 'Bare' Turning OFF.
[VV][lt.preferences:041]: s_pending_save: key: 1274655749, len: 1
[D][switch:055]: 'Bare': Sending state OFF
[D][switch:016]: 'Bare' Turning OFF.
[D][binary_sensor:034]: 'hard_button': Sending initial state OFF
[C][wifi:048]: Setting up WiFi...
[C][wifi:061]: Starting WiFi...
[C][wifi:062]:   Local MAC: 1C:90:FF:15:07:49
[VV][lt.preferences:061]: NVS length does not match (0!=98)
[V][wifi_lt:035]: Enabling STA.
D [      0.112] WIFI: Mode changing NULL -> STA
D [      0.116] WIFI: Initializing func&app

It repeats the loop every 10s or so.

Another weird thing with this chip is that I get a bunch of CRC missmatch while checking chip type! in ltchiptool while flashing.
After a couple of retries it flash though.

I also tried two different power sources to rule out power issues, but it gets in bootloop with both.

By the way, @kuba2k2 congrats on the great work you've done with this project!!

[kuba2k2]

Make sure your power supply is good enough. This issue is usually caused by a weak power supply, bad wires etc.

[dwmw2]

Don't leave P26 on either; that might not be helping with the power stability. See https://devices.esphome.io/devices/Tongou-TO-Q-SY1-JWT for a sample config which pulses P24 to close the relay and P26 to open it. (Which will be even simpler once esphome/esphome#7421 is merged).

Does this problem still happen if you use LWIP 2.1.3 which was in the LibreTiny 1.6.0 and earlier releases?

[numaiiiir]

Hi, I have a CBU module from a AT/Tongou TO_Q_SY1_JWT that gets into bootloop when adding the WIFI component.

I have flashed many other identical devices with no problem, but this one doesn't start.

I tried with a totally bare config and added a few components, to find the offending one is WIFI

Any suggestion to debug it?

WORKING YAML

substitutions:
  node_id: bare-bk
  verbose_name: "Bare"

esphome:
  #name_add_mac_suffix: true
  name: ${node_id}
  comment: ${verbose_name}
 
preferences:
  flash_write_interval: 1s

bk72xx:
  board: cbu

  framework:
    loglevel: verbose
    debug:
      - wifi
      - ota

logger:
  level: VERY_VERBOSE
  hardware_uart: UART1

status_led:
  pin:
    number: P15
    inverted: true

switch:
  - platform: gpio
    name: ${verbose_name}
    pin: P26
    id: relay
    restore_mode: RESTORE_DEFAULT_ON

binary_sensor:
  - platform: gpio
    id: hard_button
    pin:
      number: P17
      inverted: true
    on_click:
      - switch.toggle: relay
      - output.turn_on: led_red
      - delay: 10s
      - output.turn_off: led_red

output:
  - platform: gpio
    id: led_red
    pin:
      number: P9
      inverted: true

Offending config

Above config boots and works well. It fails if I add:

wifi:
  ssid: MY-SSID
  password: "MyWifiPswd"

Serial Log Output

I [      0.022] logger
[C][status_led:014]: Setting up Status LED...
[I][app:029]: Running through setup()...
[V][app:030]: Sorting components by setup priority...
[VV][scheduler:063]: set_interval(name='', interval=1000, offset=466)
[C][switch.gpio:011]: Setting up GPIO Switch 'Bare'...
[VV][lt.preferences:064]: fdb_kv_get_blob: key: 1274655749, len: 1
[D][switch:016]: 'Bare' Turning OFF.
[VV][lt.preferences:041]: s_pending_save: key: 1274655749, len: 1
[D][switch:055]: 'Bare': Sending state OFF
[D][switch:016]: 'Bare' Turning OFF.
[D][binary_sensor:034]: 'hard_button': Sending initial state OFF
[C][wifi:048]: [192.168.1.128]Setting up WiFi...
[C][wifi:061]: Starting WiFi...
[C][wifi:062]:   Local MAC: 1C:90:FF:15:07:49
[VV][lt.preferences:061]: NVS length does not match (0!=98)
[V][wifi_lt:035]: Enabling STA.
D [      0.112] WIFI: Mode changing NULL -> STA
D [      0.116] WIFI: Initializing func&app

It repeats the loop every 10s or so.

Another weird thing with this chip is that I get a bunch of CRC missmatch while checking chip type! in ltchiptool while flashing.
After a couple of retries it flash though.

I also tried two different power sources to rule out power issues, but it gets in bootloop with both.

By the way, @kuba2k2 congrats on the great work you've done with this project!!