6i24 bricked - How to fix? - JTAG?

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28 Oct 2019 16:34 #148985 by mlhilligsoe
6i24 bricked - How to fix? - JTAG? was created by mlhilligsoe
I accidentally wrote a -25 bit file to my 6i24 board (XC6SLX16-FTG256) and now the yellow and red LEDs are always on.
I tried using the mesaflash --recovery feature which has worked for me once before, but without luck.
How can I fix this? The manual states that JTAG is an option, but I'm not able to find information on how to do this.

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28 Oct 2019 17:09 - 28 Oct 2019 17:10 #148989 by PCW
Replied by PCW on topic 6i24 bricked - How to fix? - JTAG?
I think you can use the recovery function but there's a bug in mesaflash so you have to lie and say the card is a 6I25...
Last edit: 28 Oct 2019 17:10 by PCW.

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28 Oct 2019 17:22 #148992 by mlhilligsoe
Replied by mlhilligsoe on topic 6i24 bricked - How to fix? - JTAG?
I already tried this.
In Mesaflash version 3.3.0~pre I get:
sudo mesaflash --device 6i25 --recover --write 5i24_16_justio.bit
Checking file... OK
File type: BIT file
Boot sector OK
EEPROM sectors to write: 8, max sectors in area: 16
Erasing EEPROM sectors starting from 0x100000...
|EEEEEEEE
Programming EEPROM sectors starting from 0x100000...
|WWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWW
Board configuration updated successfully.
Checking file... OK
File type: BIT file
Error: wrong bitfile destination device: 6slx16ftg256, should be 6slx9tqg144


In Mesaflash 3.4.0~pre I get:
sudo ./mesaflash --device 6i25 --recover --write /home/vaerkscnc/Downloads/5i24/configs/hostmot2/5i24_16_justio.bit
Checking file... OK
File type: BIT file
Error: BootSector is invalid

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28 Oct 2019 17:24 #148993 by PCW
Replied by PCW on topic 6i24 bricked - How to fix? - JTAG?
You have to specifically enable mesaflash to re-write the boot-sector

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28 Oct 2019 21:30 #149006 by mlhilligsoe
Replied by mlhilligsoe on topic 6i24 bricked - How to fix? - JTAG?
I restarted my PC and now I get the same error in both Mesaflash versions:
Error: wrong bitfile destination device: 6slx16ftg256, should be 6slx9tqg144

If i have to re-write the boot-sector using mesaflash, how do i enable this?

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28 Oct 2019 21:47 - 28 Oct 2019 22:05 #149007 by PCW
Replied by PCW on topic 6i24 bricked - How to fix? - JTAG?
Are you sure the card was not updated?, your first post suggests that it was.

Edit:

I just retried this:

wrote bad (x25) bitfile to 6I24/ reload,: init and /done LEDS illuminated, card not found

recovered with

sudo mesaflash --device 6i25 --recover --write (good x16 bitfile)

This is with mesaflash 3.30

It does complain about the wrong FPGA type, but only after it has wriiten the flash memory
Last edit: 28 Oct 2019 22:05 by PCW.
The following user(s) said Thank You: mlhilligsoe

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29 Oct 2019 08:11 #149032 by mlhilligsoe
Replied by mlhilligsoe on topic 6i24 bricked - How to fix? - JTAG?
It's working now.
I feel like i tried a bunch of stuff last night, and nothing worked, but when i looked at it this morning, the 2 LEDs were off and everything seems okay. So some of the things i did last night did the trick.

Thanks for the help.
Now I'm off to try and figure out how to use the SSI with aboslute encoder.

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29 Oct 2019 10:25 #149038 by tommylight
Replied by tommylight on topic 6i24 bricked - How to fix? - JTAG?


Now I'm off to try and figure out how to use the SSI with aboslute encoder.

Here is a retrofit i did a while back, it does use serial absolute encoders wired to a Mesa 7i74:
forum.linuxcnc.org/30-cnc-machines/31792...-sbz-130-01-retrofit
The config is attached so you can have a look.
Regards,
Tom.

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