Raspberry Pi 4 with Mesa 7c81

FERROR and MIN_FERROR are only for generating faults
from following errors. Following error is the difference between
commanded position and the actual position.

Now Im even more puzzled! I will try to run some more tests later today

Can anyone please help with creating a bitfile?
I downloaded data from .mesanet.com.
I tried to create a bitfile using ISE Project Navigator, first in version 14.5 (P.58f), then in version 14.7 (P.20160913) for windows 10.
I tried to create a bitfile for different breakout boards. I did not make any changes, I used the original files. The process will always run with the message "completed successfully", but a bitfile will never be created.
I would need a bitfile for 7i78. I modified the file for 5i25. I don't know if this file is OK or what needs to be changed.
When creating the bitfile, I followed this gentleman - probably the best that can be found.


Thank you in advance for any advice.

Here is a bitfile for a 7C81 and 1 or 2 7I78s:



I have included the pinout file

If you are experimenting with making bitfiles, you should write them to the
fallback location on the cards flash memory, not the user location, because
if there is an error in your bitfile, you can brick the card. If you write the test bitfile to the
fallback location, you can just power cycle the card to get back to a working
configuration, rather than needing JTAG programmer to recover.

Thanks and I'm going for it.

Unfortunately, after the --readhmid command, I only get the message:
unable to set bpw32, fallback to bpw8
I tried to write the configuration:

mesaflash --device 7c81 --addr /dev/spidev0.0 --spi --fallback --write /home/pi/Downloads/7c81/7c81_7i78x2d.bit

unable to set bpw32, fallback to bpw8

Checking file... OK
File type: BIT file
Boot sector OK
EEPROM sectors to write: 6, max sectors in area: 15
Erasing EEPROM sectors starting from 0x10000...
|EEEEEE
Programming EEPROM sectors starting from 0x10000...
|WWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWW
Board configuration updated successfully.
Checking file... OK
File type: BIT file
Boot sector OK
Verifying EEPROM sectors starting from 0x10000...
|VVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVV
Board configuration verified successfully.

You must power cycle the hardware or use the --reload command to load a new firmware.

root@raspicnc-7c81:~# mesaflash --device 7c81 --addr /dev/spidev0.0 --spi --reload

unable to set bpw32, fallback to bpw8
Waiting for FPGA configuration...OK

root@raspicnc-7c81:~# mesaflash --device 7c81 --addr /dev/spidev0.0 --spi readhmid

unable to set bpw32, fallback to bpw8

What does it mean? Why can't I read eeprom?
After the reboot, I only get the message again:
unable to set bpw32, fallback to bpw8