7i90hd. Problem with writing bit file

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05 Jul 2025 09:21 #331307 by kulek
Hello.  After incorrect firmware loading all three LEDs on the board light up and mesaflash not found board. I try jtag flash. The firmware is uploaded successfully and light up only yellow power led. Mesaflash found board, but when I try to write a bit file an error occurs: Error: BootSector is invalid.
--fixbootblock doesn't help. What shoud i do to wrtie bit file in EEPROM?
 
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05 Jul 2025 14:32 #331317 by PCW
Replied by PCW on topic 7i90hd. Problem with writing bit file
Does the alternate EEPROM still have a valid image?
(that say mesaflash --readhmid works with)

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05 Jul 2025 14:56 #331320 by kulek
Replied by kulek on topic 7i90hd. Problem with writing bit file
No it does not.  After unsucsessful firmwareI  I tried to boot from the second EEPROM (W3 in the low position). But Mesaflash not founded 7i90 and 2 leds glowed ( power and int ) opposit to 3 in first case.

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05 Jul 2025 15:30 #331323 by PCW
Replied by PCW on topic 7i90hd. Problem with writing bit file
Did you try writing one of the standard supplied EPP bit files?

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05 Jul 2025 15:38 #331324 by kulek
Replied by kulek on topic 7i90hd. Problem with writing bit file
Yes. I tryed. Result was the same

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05 Jul 2025 16:13 #331326 by PCW
Replied by PCW on topic 7i90hd. Problem with writing bit file
Hard to tell if this is a EPP interface issue or maybe a Mesaflash problem

Can you try:

Power up on alternate EEPROM (which should have a valid boot sector)

program FPGA via JTAG (NOT FLASH!)

Then try mesaflash again to write a standard EPP bitfile

If this does not work, a temporary workaround (if you are building you own firmware)
would be to write the flash via JTAG

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