logo elektroda
logo elektroda
X
logo elektroda
Advanced Search
logo elektroda

[Solved] Flashing BK7231N Chipset: User's Experience with Tongou TO-Q-SY-JWT Rail DIN Switch

Ramirez22 1017 6
ADVERTISEMENT
| New topic
  • Helpful post
    #1 20788556
    Ramirez22
    Level 3  

    Hello.

    Total newbie and not good in English, please be patient with me :)

    I have a Rail DIN switch with power metering (look in title)

    I flash it with this file

    Code: text Expand Select all Copy to clipboard
    Chipset: BK7231N
Build: Build on Oct 26 2023 06:53:47 version 1.17.291


    I apply these parameters
    Code: text Expand Select all Copy to clipboard
    {
  "vendor": "Tongou",
  "bDetailed": "0",
  "name": "TO-Q-SY-JWT Switch and Meter for DIN rail.",
  "model": "TO-Q-SY-JWT",
  "chip": "BK7231N",
  "board": "TODO",
  "flags": "33555456",
  "keywords": [
    "Power meter",
    "Rail DIN"
  ],
  "pins": {
    "9": "LED_n;1",
    "15": "WifiLED_n;0",
    "17": "Btn;1",
    "24": "BridgeFWD;1",
    "26": "BridgeREV;1"
  },
  "command": "backlog startDriver BL0942; SetupEnergyStats 1 30 120 0; startDriver NTP"
}


    Flags:
    10, 38 and 40 are set to true

    Working:
    On / Off the switch with button or via Ethernet main page functional

    Not working:
    Power metering always shows "0"

    I have this error in web app logs:
    Quote:
    Warn:EnergyMeter:Consumed 256 unwanted non-header byte in BL0942 buffer


    Is it possible to have some help? But remember: newbie and not English, so simple words please :D

    Many thanks!

    [EDIT1]: I forgot to specify that I launch these commands with 100W Halogen lamp and meters:
    Code: text Expand Select all Copy to clipboard
    
PowerSet 100
VoltageSet 233
CurrentSet 0.42

  • ADVERTISEMENT
  • #2 20789922
    p.kaczmarek2
    Moderator Smart Home  
    Hello, how do you know it's BL0942?
    Maybe it's BL0937?
    Or some other chip...

    Can you do Tuya config extraction and attach here result: https://www.youtube.com/watch?v=WunlqIMAdgw
    Helpful post? Buy me a coffee.
  • ADVERTISEMENT
  • #3 20789986
    Ramirez22
    Level 3  
    Hello,

    Thanks for your help.

    I suppose this is a BL0942 cause https://www.elektroda.com/rtvforum/topic3934580.html#20435098. It's the same item, but you're right : I don't check components

    Here you can find results
    Code: text Expand Select all Copy to clipboard
    {
	"bt1_pin":"17",
	"led1_pin":"9",
	"rl1_drvtime":"60",
	"net_trig":"2",
	"rl_on1_pin":"24",
	"jv":"1.0..1",
	"netled1_lv":"0",
	"netled_reuse":"0",
	"bt1_type":"0",
	"nety_led":"1",
	"rl_off1_pin":"26",
	"over_cur":"64000",
	"bt1_lv":"0",
	"reset_t":"5",
	"netled1_pin":"15",
	"chip_type":"3",
	"rl_on1_lv":"1",
	"lose_vol":"0",
	"over_vol":"0",
	"module":"CBU",
	"ch_cddpid1":"9",
	"ch1_stat":"2",
	"led1_lv":"0",
	"rl1_type":"1",
	"ch_num":"1",
	"ele_fun_en":"1",
	"rl_off1_lv":"1",
	"netn_led":"0",
	"vol_def":"0",
	"ch_dpid1":"1",
	"crc":"88",
	"}/Agw_di0Atls_ca_cntbv":"40.00",
	"pv":"2.2",
	"lpv":"3.3",
	"pk":"keyuh3jxk9wu8ruj",
	"firmk":"keyuh3jxk9wu8ruj",
	"cadv":"0",
	"cdv":"1.0.0",
	"dev_swv":"1.0.2",
	"s_id":"null",
	"dtp":"0",
	"sync":"0",
	"attr_num":"0",
	"mst_tp_0":"0",
	"mst_ver_0":"null",
	"mst_tp_1":"0",
	"mst.com":"1883",
	"mq_ip":"3.121.210.75",
	"ai_sp":"null",
	"ai_sp_ip":"null",
	"mq_psk":"m2.tuyaeu.com",
	"mq_psk_ip":"3.121.210.75",
	"md":"0",
	"random":"0",
	"wfb64":"1",
	"stat":"0",
	"token":"null",
	"region":"null",
	"reg_key":"null",
	"dns_prio":"0",
	"lp_ip":"null",
	"time_z":"+01",
	"s_time_z":"[[1679792400",
	"wx_app_id":"null",
	"wx_uuid":"null",
	"dy_tls_m":"2",
	"cloud_cap":"1025",
	"psk21_key":"null "
}

    Code: text Expand Select all Copy to clipboard
    Device configuration, as extracted from Tuya: 
- Button (channel 1) on P17
- LED (channel 1) on P9
- WiFi LED on P15
Device seems to be using CBU module, which is using BK7231N.
And the Tuya section starts, as usual, at 2023424


    I don't understans anything, but I'm afraid that no information about meter ...

    This is the script generated:
    Code: text Expand Select all Copy to clipboard
    ClearIO // clear old GPIO/channels
lfs_format // clear LFS
StartupCommand ""  // clear STARTUP
stopDriver *  // kill drivers
setPinRole 15 WifiLED_n
backlog setPinRole 9 LED; setPinChannel 9 1
backlog setPinRole 17 Btn; setPinChannel 17 1


    Is it helpfull for you ?

    Added after 8 [hours] 4 [minutes]:

    [EDIT1] I add below logs during start driver BL0942, maybe important information ...

    Code: text Expand Select all Copy to clipboard
    Debug:CMD:cmd [startDriver BL0942]
Info:EnergyMeter:Read ENERGYMETER status values. sizeof(ENERGY_METERING_DATA)=32
Error:CMD:command with name EnergyCntReset already exists!
Error:CMD:command with name SetupEnergyStats already exists!
Error:CMD:command with name ConsumptionThreshold already exists!
Error:CMD:command with name VCPPublishThreshold already exists!
Error:CMD:command with name VCPPrecision already exists!
Error:CMD:command with name VCPPublishIntervals already exists!
Error:CMD:command with name VoltageSet already exists!
Error:CMD:command with name CurrentSet already exists!
Error:CMD:command with name PowerSet already exists!
Info:CMD:[WebApp Cmd 'startDriver BL0942' Result] OK
Warn:EnergyMeter:Consumed 2 unwanted non-header byte in BL0942 buffer
Warn:EnergyMeter:Skipping packet with bad checksum 58 wanted 62
Warn:EnergyMeter:Consumed 23 unwanted non-header byte in BL0942 buffer
Warn:EnergyMeter:Consumed 24 unwanted non-header byte in BL0942 buffer
Warn:EnergyMeter:Consumed 24 unwanted non-header byte in BL0942 buffer
Warn:EnergyMeter:Consumed 24 unwanted non-header byte in BL0942 buffer
  • #4 20790095
    p.kaczmarek2
    Moderator Smart Home  
    Are you able to open it and check what's used inside?
    Do you have 2MB original firmware backup?
    Helpful post? Buy me a coffee.
  • ADVERTISEMENT
  • #5 20790631
    Ramirez22
    Level 3  
    In fact, the results above are given by the original backup ...

    [EDIT1] OK, I found the problem
    During flash, I solder small wires on pin 15 and 16.
    But when I remove these wires, I made a shortcut between these 2 pins.

    I clean all the pin and meter is now ok.

    Many thanks for help
  • ADVERTISEMENT
  • #6 20792337
    Ramirez22
    Level 3  
    Take care to don't shortcuts pins !!!
  • #7 20792347
    p.kaczmarek2
    Moderator Smart Home  
    Ah, so you shorted two pins... no wonder, it didn't work. I am happy to hear now your issue is resolved.
    Helpful post? Buy me a coffee.
| New topic
Report a violation of the law

Topic summary

A user experienced issues with a Tongou TO-Q-SY-JWT Rail DIN switch powered by the BK7231N chipset after flashing it with firmware. The switch functioned for basic on/off operations but failed to display power metering data, consistently showing "0". After troubleshooting, it was suggested to verify the chip type and perform a Tuya config extraction. The user later discovered that a short circuit between pins 15 and 16, caused by soldering wires during flashing, was the root of the problem. Once the short was resolved, the power metering functioned correctly.
Summary generated by the language model.
Popular Topics
ADVERTISEMENT