Hello YL,
To clarify, my problems are not with a Intel Development Kit. I have two of my own custom board designs board A and board B. I built 20 of each of these boards.
- I programmed 1/3 of each of these boards directly using the JIC file. Tested the boards for several weeks, and everything was fine.
- Then one day.... I was programming the second third of each batch and the programmer window messages said they programmed successfully. However when I cycled power the boards never loaded their programs, and could no longer be recognized by the programmer to attempt to reprogram them.
- The next day, I programmed a boards with the SOF file first.... verified the board was working correctly.... then with the SOF file still running... programmed the board with the JIC file... cycled power and the board works fine. One at a time I programmed all the remaining boards with the SOF then JIC sequence and they are all fine.
- I have 9 boards that are still dead from the direct JIC load. I have sent them back to the assembler to have the memory devices replaced. I will attempt to see if my new process works on these boards with new memory devices. If that does not work I will replace the FPGA's and try again.
I would like to know:
- can a corrupt memory device cause the FPGA to no longer be recognized by the JTAG interface, is the A10 trying to load the program in the meme device and getting stuck?
- what can cause an A10 that was recognizable by the JTAG interface, to no longer be recognizable after it is programmed?
- is there a way to power up the A10 so it does not try and load from memory?
- could the Terasic version of the USB Blaster cause this problem?
Any help you can provide would be appreciated
New Contributor
