Comments (30)
kuba2k2
commented on August 18, 2024
1
You should use generic-bk7231t-qfn32-tuya, not the N variant. T is the closest to your chip.
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kuba2k2
commented on August 18, 2024
Try running Get chip info.
It might be falsely detecting the chip type (T/N/etc) which could cause incorrect reading options.
Also, please post the full log of the flash operation (even better with enabled debug log level).
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I-hate-2FA
commented on August 18, 2024
W: PyInstaller\loader\pyimod02_importers.py:419: UserWarning: ltchiptool.gui.base.zc is deprecated, migrate to ltchiptool.gui.mixin.zc
I: Loaded settings from C:\Users\Admin\AppData\Roaming\ltchiptool\gui.json
I: Found new device: COM11 - Silicon Labs CP210x USB to UART Bridge - Silicon Labs (10C4/EA60)
D: Log level changed
D: Started FlashThread
D: Starting READ_INFO operation; file = C:\Users\Admin\Downloads\ltchiptool_bk72xx_2024-07-31_03-11-32.bin, port = COM11 @ 115200
D: Connecting
D: Connecting
D: Connecting
D: Connecting
D: Reading 4k page at 0x000000 (0.00%)
W: Reading failure @ 0x0 (Non-zero status code: BkFlashRead4KResp(status=6, start=0x0, data=bytes(1))), retrying (attempt 0)
W: Reading failure @ 0x0 (Non-zero status code: BkFlashRead4KResp(status=6, start=0x0, data=bytes(1))), retrying (attempt 1)
W: Reading failure @ 0x0 (Non-zero status code: BkFlashRead4KResp(status=6, start=0x0, data=bytes(1))), retrying (attempt 2)
W: Reading failure @ 0x0 (Non-zero status code: BkFlashRead4KResp(status=6, start=0x0, data=bytes(1))), retrying (attempt 3)
W: Reading failure @ 0x0 (Non-zero status code: BkFlashRead4KResp(status=6, start=0x0, data=bytes(1))), retrying (attempt 4)
W: Reading failure @ 0x0 (Non-zero status code: BkFlashRead4KResp(status=6, start=0x0, data=bytes(1))), retrying (attempt 5)
W: Reading failure @ 0x0 (Non-zero status code: BkFlashRead4KResp(status=6, start=0x0, data=bytes(1))), retrying (attempt 6)
W: Reading failure @ 0x0 (Non-zero status code: BkFlashRead4KResp(status=6, start=0x0, data=bytes(1))), retrying (attempt 7)
W: Reading failure @ 0x0 (Non-zero status code: BkFlashRead4KResp(status=6, start=0x0, data=bytes(1))), retrying (attempt 8)
W: Reading failure @ 0x0 (Non-zero status code: BkFlashRead4KResp(status=6, start=0x0, data=bytes(1))), retrying (attempt 9)
W: Reading failure @ 0x0 (Non-zero status code: BkFlashRead4KResp(status=6, start=0x0, data=bytes(1))), retrying (attempt 10)
W: Reading failure @ 0x0 (Non-zero status code: BkFlashRead4KResp(status=6, start=0x0, data=bytes(1))), retrying (attempt 11)
W: Reading failure @ 0x0 (Non-zero status code: BkFlashRead4KResp(status=6, start=0x0, data=bytes(1))), retrying (attempt 12)
W: Reading failure @ 0x0 (Non-zero status code: BkFlashRead4KResp(status=6, start=0x0, data=bytes(1))), retrying (attempt 13)
W: Reading failure @ 0x0 (Non-zero status code: BkFlashRead4KResp(status=6, start=0x0, data=bytes(1))), retrying (attempt 14)
W: Reading failure @ 0x0 (Non-zero status code: BkFlashRead4KResp(status=6, start=0x0, data=bytes(1))), retrying (attempt 15)
W: Reading failure @ 0x0 (Non-zero status code: BkFlashRead4KResp(status=6, start=0x0, data=bytes(1))), retrying (attempt 16)
W: Reading failure @ 0x0 (Non-zero status code: BkFlashRead4KResp(status=6, start=0x0, data=bytes(1))), retrying (attempt 17)
W: Reading failure @ 0x0 (Non-zero status code: BkFlashRead4KResp(status=6, start=0x0, data=bytes(1))), retrying (attempt 18)
W: Reading failure @ 0x0 (Non-zero status code: BkFlashRead4KResp(status=6, start=0x0, data=bytes(1))), retrying (attempt 19)
W: Reading failure @ 0x0 (Non-zero status code: BkFlashRead4KResp(status=6, start=0x0, data=bytes(1))), retrying (attempt 20)
E: An error has occurred
E: ValueError: Non-zero status code: BkFlashRead4KResp(status=6, start=0x0, data=bytes(1))
E: |-- File "ltchiptool\gui\work\base.py", line 24, in run
E: |-- File "ltchiptool\gui\work\flash.py", line 69, in run_impl
E: |-- File "ltchiptool\gui\work\flash.py", line 109, in _link
E: |-- File "ltchiptool\soc\bk72xx\flash.py", line 102, in flash_connect
E: |-- File "bk7231tools\serial\linking.py", line 28, in connect
E: |-- File "bk7231tools\serial\linking.py", line 91, in detect_chip
E: |-- File "bk7231tools\serial\cmd_hl_flash.py", line 100, in flash_read_bytes
E: |-- File "bk7231tools\serial\cmd_hl_flash.py", line 85, in flash_read
E: |-- File "bk7231tools\serial\cmd_ll_flash.py", line 105, in flash_read_4k
E: |-- File "bk7231tools\serial\protocol.py", line 196, in command
D: Stopped FlashThread
D: Started TerminalThread
D: Terminal opened
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I-hate-2FA
commented on August 18, 2024
so is this chip supported by libretiny platform, or did i just wasted my money , i thought all 7231 is supported so i bought too much of them at once
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kuba2k2
commented on August 18, 2024
It can be supported, don't give up yet.
Apparently this bootloader could be locking readout from 0x0.
Try using bk7231tools to read the flash chip contents:
https://github.com/tuya-cloudcutter/bk7231tools
bk7231tools read_flash -d COM11 -s 0x11000 -l 0x200000 dump.bin
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I-hate-2FA
commented on August 18, 2024
C:\Users\Admin>bk7231tools read_flash -d COM11 -s 0x11000 -l 0x200000 dump.bin
Unknown bootloader CRC - 0xBEFD79D6 - please report this on GitHub issues!
Reading 4k page at 0x011000 (0.00%)
BK72xx connected - protocol: BASIC_BEKEN, chip: None, bootloader: None, chip ID: None, boot version: None
Flash size - detecting...
- Checking wraparound at 0x211000
Flash size detected - 0x200000
Connected! Chip info: Unknown / Flash ID: None / Flash size: 0x200000 / Protocol: BASIC_BEKEN
Reading 0x200000 bytes at 0x11000 would go past the flash memory end
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kuba2k2
commented on August 18, 2024
Right, so it seems it detects the flash size correctly.
Try with -s 0x0.
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I-hate-2FA
commented on August 18, 2024
dump.bin.txt
it seems to work, i used a brand new chip for this, cuz idk if delid have damaged it
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kuba2k2
commented on August 18, 2024
Just curious, where did you find these BK7231S chips? We've never seen this particular model before, are these available to buy somewhere as bare chips?
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I-hate-2FA
commented on August 18, 2024
Just curious, where did you find these BK7231S chips? We've never seen this particular model before, are these available to buy somewhere as bare chips?
https://fcc.report/FCC-ID/2AR7VC-8133U/4225568.pdf
i bought 15 smart bulb for $4, it have this chip,isolated mains driver, pwm controlled RGBCCT
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I-hate-2FA
commented on August 18, 2024
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I-hate-2FA
commented on August 18, 2024
is there any chance for this to work
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kuba2k2
commented on August 18, 2024
Yes. You can probably just flash ESPHome, provided that you use this in your YAML:
esphome:
name: my-device-name
platformio_options:
board_build.bkcrypt_coeffs: 00000000000000000000000000000000
board_build.bkota.key: 0123456789ABCDEF0123456789ABCDEF
board_build.bkota.iv: 0123456789ABCDEF
board_flash.calibration: 0x1F3000+0x1000Note that the bootloader on this device is the oldest we've seen, it looks very much different from all the standard bootloaders.
Because of this, I'm not sure if this device will support OTA as-is.
After compiling ESPHome, try flashing the image_bk7231t_app.0x011000.rbl file from the build directory to offset 0x11000, using the tool that works for you.
As long as you don't flash anywhere in between 0x0 and 0x11000, you should be fine.
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I-hate-2FA
commented on August 18, 2024
what cpu should i select in esphome
is board: generic-bk7231n-qfn32-tuya correct
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I-hate-2FA
commented on August 18, 2024
it cannot compile
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kuba2k2
commented on August 18, 2024
Hm, maybe YAML is converting the coeffs to integer. Try wrapping it in quotes, like board_build.bkcrypt_coeffs: "00000000000000000000000000000000".
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I-hate-2FA
commented on August 18, 2024
what version do i download for cli tool
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kuba2k2
commented on August 18, 2024
the Beken Application Image for direct flashing
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I-hate-2FA
commented on August 18, 2024
didnt work still unfortunately
or maybe i messed up
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I-hate-2FA
commented on August 18, 2024
it is not very easy to flash this because the cp2102 code not have auto reset, and i lost my ch340
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kuba2k2
commented on August 18, 2024
Unfortunately I don't have a fix for that. It's not possible for me to fix such low-level issues without physically owning such a chip.
You could try flashing the same RBL file using other software, such as BkWriter. It should only be used as a last resort.
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I-hate-2FA
commented on August 18, 2024
how can i send you one of these
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kuba2k2
commented on August 18, 2024
If you don't live anywhere near Poland, I think it would be much more expensive than the entire device is worth 😄
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I-hate-2FA
commented on August 18, 2024
it is def more expensive then this is worth, but if you cant buy it there its the only option
it is only 1.5RMB per unit i bought from china
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I-hate-2FA
commented on August 18, 2024
https://item.taobao.com/item.htm?id=749971518349
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I-hate-2FA
commented on August 18, 2024
beken writer erase flash also fail
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divadiow
commented on August 18, 2024
what version of bkwriter was it?
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I-hate-2FA
commented on August 18, 2024
1.60
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divadiow
commented on August 18, 2024
could try 1.7.5
https://images.tuyacn.com/smart/electronic/component/infomation/cfxjtyy7me4g.zip
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I-hate-2FA
commented on August 18, 2024
same problem
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