Forum Discussion
Intel Agilex F-Series dev kit cant be programmed by JTAG
- 5 years ago
Hi,
thanks a lot for your help! We've fixed this issue now. One thing we'd like to share, for a potential future reader, is that in addition to the above mentioned article one needs to completely erase the flash prior to configuring. Our working solutions looks like the following:
- Power off the board. Waiting for the caps to be drained doesn't seam to be necessary.
- Set MSEL[2:0] to ON/OFF/OFF
- Power on the board.
- Erase the boards flash using the programmer tools
- Power off the board.
- Set MSEL[2:0] to OFF/OFF/OFF
- Power on the board
- Programm your *.sof file.
It's also required to leave the JTAG chain in the default configuration while erasing the flash. Last but not least: If step 8 fails retry a couple of times until it stops failing (we usually don't need more than 3 tries). It also seams to be more reliable (programming fails less often) at 24MHz than 6MHz, which the programmer defaults to anyway.
Hi
I suspect your TCK frequency might be the root cause here.
Can you kindly try to reduce your TCK frequency to 6 MHz (default value)?
Below link is the command to change TCK frequency (on page 14= "2.8. Changing the TCK Frequency")
Kindly try it out with your design and let me know the result.
Thanks