Hello,
in fact it was the lack of dependencies, which I have fixed now, on my
PC only libjaylink 0.3.0 is missing (I only have version 0.2.0), but I
don't need j-link.
Now flashrom recognizes the programmer but not the chip, I tested the
follwing chips: Winbond 25Q16DV, Winbond W24X40 and Macronix 25L4005A
xc@pcs:~/flashrom$ flashrom -p ch341b_spi -c W25Q16.V --flash-name
-VVV
flashrom v1.5.0 on Linux 6.8.0-49-generic (x86_64)
flashrom is free software, get the source code at https://flashrom.org
flashrom was built with GCC 11.4.0, little endian
Command line (6 args): flashrom -p ch341b_spi -c W25Q16.V --flash-name
-VVV
Strange: Empty eraseblock definition with non-empty erase function.
Not
an error.
Initializing ch341b_spi programmer
Device revision is 3.0.4
Wrote 3 bytes:
aa 61 00
Wrote 4 bytes:
ab b7 7f 20
The following protocols are supported: SPI.
Probing for Winbond W25Q16.V, 2048 kB: master_map_flash_region:
mapping
W25Q16.V from 0x00000000ffe00000 to 0x0000000000000000
cb_in: error: LIBUSB_TRANSFER_TIMED_OUT
ch341b_spi_spi_send_command: Failed to read 4 bytes
master_unmap_flash_region: unmapped 0x0000000000000000
No EEPROM/flash device found.
Note: flashrom can never write if the flash chip isn't found
automatically.
Wrote 4 bytes:
ab b7 40 20
Regards
Stephan
Am 10.12.24 um 07:05 schrieb Anastasia Klimchuk:
> It seems libusb dependency is not recognised, in your case you need libusb.
> When you are building from source, in the beginning meson prints lots
> of info, find what it says about libusb.
> For example, on my environment here I have this line:
>
> Run-time dependency libusb-1.0 found: YES 1.0.27
>
> I suspect you have NO and you need to achieve YES
> Check the instructions about libraries, especially section on Ubuntu:
> https://flashrom.org/dev_guide/building_from_source.html
>
> For your work to add support for CH341b it would be really good to
> have a patch eventually.
> Similar thing was implemented for ch347_spi recently, see how now it
> knows about two devices IDs and tries each of them:
> https://github.com/flashrom/flashrom/blob/main/ch347_spi.c#L60
>
> On Mon, Dec 9, 2024 at 9:26 PM S. <[email protected]> wrote:
>>
>> Hello,
>>
>> I've never programmed in C languages before, but it seemed easy to me
>> since the only difference between ch341a and ch341b is that ch341b no
>> longer needs an external crystal
>> https://www.wch-ic.com/downloads/file/16.html (Chapter 3., Note). I
>> therefore changed the PID in line 90 of ch341a_spi.c from 5512 to 5523
>> and added an entry for the ch341b in flashrom_udev.rules :
>>
>> # Winchiphead (WCH) CH341b based programmer
>> ATTRS{idVendor}==“1a86”, ATTRS{idProduct}==“5523”, MODE=“664”,
>> GROUP="plugdev”
>>
>> The result is that the flashrom call only shows a few programmers, I can
>> no longer select the ch341:
>>
>> flashrom v1.5.0 on Linux 6.8.0-49-generic (x86_64)
>> flashrom is free software, get the source code at https://flashrom.org
>> Please select a programmer with the --programmer parameter.
>> Valid choices are:
>> dummy, serprog, buspirate_spi, rayer_spi, pony_spi, linux_mtd, linux_spi.
>>
>> flashrom 1.2 is delivered with Ubuntu, more programmers are offered:
>>
>> flashrom v1.2 on Linux 6.8.0-49-generic (x86_64)
>> flashrom is free software, get the source code at https://flashrom.org
>> Please select a programmer with the --programmer parameter.
>> To choose the mainboard of this computer use 'internal'.
>> Valid choices are:
>> internal, dummy, nic3com, nicrealtek, gfxnvidia, drkaiser, satasii,
>> atavia, it8212, ft2232_spi, serprog, buspirate_spi, dediprog,
>> developerbox, rayer_spi, pony_spi, nicintel, nicintel_spi,
>> nicintel_eeprom, ogp_spi, satamv, linux_mtd, linux_spi, usbblaster_spi,
>> pickit2_spi, ch341a_spi, digilent_spi, stlinkv3_spi.
>>
>> Regards
>> Stephan
>>
>>
>>
>> Am 09.12.24 um 01:11 schrieb Anastasia Klimchuk:
>>> Hello Stephan,
>>>
>>> It's so good that you are trying to do things by yourself!
>>>
>>> I understand you have written some code locally, which you are now
>>> trying to make work. Would you be comfortable to share this as a
>>> patch? This way people can look and perhaps give advice.
>>>
>>> The instructions how to send a patch are here:
>>> https://flashrom.org/dev_guide/development_guide.html
>>>
>>> You can add in the commit title "WIP", "doesn't work yet", or
>>> something like this. And post the link to the patch in this thread.
>>> Thank you!
>>>
>>> On Sun, Dec 8, 2024 at 12:14 AM S. <[email protected]> wrote:
>>>>
>>>> Next errormessage, now he likes the VID 5523:
>>>>
>>>> flashrom v1.5.0 on Linux 6.8.0-49-generic (x86_64)
>>>> flashrom is free software, get the source code at https://flashrom.org
>>>>
>>>> Using default 2000kHz clock. Use 'spispeed' parameter to override.
>>>> linux_spi_init: failed to set speed to 2000000Hz: Inappropriate ioctl
>>>> for device
>>>> Error: Programmer initialization failed.
>>>>
>>>> Stephan
>>>>
>>>>
>>>> Am 07.12.24 um 13:58 schrieb S.:
>>>>> Hello,
>>>>> now I have tried it myself, the only difference I know between ch341a
>>>>> and ch341b is PID:VID 1A86:5523 (instead of 1A86:5512). So I changed the
>>>>> VID in ch341a_spi.c and flashrom_udev.rules. But unfortunately this does
>>>>> not help, I get the error message “Couldn't open device 1a86:5512” when
>>>>> starting flashrom, although in the source code PID:VID is now set to
>>>>> 1a86:5523. Strange.
>>>>> Stephan
>>>>>
>>>>> Am 25.10.24 um 15:36 schrieb S.:
>>>>>> flashrom supports only programmers with ch341a, but many programmers
>>>>>> sold now have ch341b onboard, pid:vid is then 1a86:5523
>>>>>>
>>>>>> tnx in advance
>>>>>> Stephan
>>>>>> _______________________________________________
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>>>>> _______________________________________________
>>>>> flashrom mailing list -- [email protected]
>>>>> To unsubscribe send an email to [email protected]
>>>> _______________________________________________
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>>>> To unsubscribe send an email to [email protected]
>>>
>>>
>>>
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>
>
>
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