Forum Discussion
Occasional ContributorArria 10: Booting U-Boot from SD-Card does not configure FPGA
Hi @aikeu,
okay, now im sure: The Intel In-System Sources and Probes IP hinders the FPGA from starting normally after it has been correctly configured by SD-Card. Even the old Quartus-Project works without the ISSP-IP. Now it makes sense why the FPGA starts when a connection to the programmer is established via JTAG or similar.
My workaround will be, that i only use FPGA Firmware without the debugging features (ISSP, SignalTap, ...) on the SD-Card and when i need this debugging features i will start the HPS with the ARMD DS debugger.
Thanks for the help, my problem has been solved.
Regards,
LFrin
Occasional ContributorHi @aikeu,
my new Quartus project is now designed like the old one, except that I don't use an "In-System-Source-and-Probes" IP and a "Signal-Tap" instance. In the old project I used the ISSP-IP to reset the FPGA. It might be that the initial value is wrong when booting from SD card and the FPGA stays in reset.
I believe one of these two instances is causing this problem. Tomorrow I will integrate both into my new project and then see if the error occurs.
Regards, LFrin
- LFrin
Hi @aikeu,
okay, now im sure: The Intel In-System Sources and Probes IP hinders the FPGA from starting normally after it has been correctly configured by SD-Card. Even the old Quartus-Project works without the ISSP-IP. Now it makes sense why the FPGA starts when a connection to the programmer is established via JTAG or similar.
My workaround will be, that i only use FPGA Firmware without the debugging features (ISSP, SignalTap, ...) on the SD-Card and when i need this debugging features i will start the HPS with the ARMD DS debugger.
Thanks for the help, my problem has been solved.
Regards,
LFrin
