FPGA not configured from flash EPCQ128A with generated .rbf file issue

Hello,

FPGA is never configured from FPGA flash EPCQ128A with RBF which is generated by Quartus 18.1.0.

FPGA is always configured from FPGA flash EPCQ128A with JIC which is generated by Quartus 18.1.0.

Old FPGA flash EPCQ128N (Quartus 15.0.0 was used):

JIC (via JTAG) and RBF (via TFTP SW update) are successfully flashed on FPGA flash EPCQ128N and FPGA is configured after reboot device in both cases. Those JIC and RBF were generated by Quartus 15.0.0 from same SOF.

New FPGA flash EPCQ128A (Quartus 18.1.0 is used):

Now, we are using new FPGA flash EPCQ128A. For new FPGA flash (EPCQ128A) JIC and RBF are generated by Quartus 18.1.0 and state is:

• JIC is flashed (via JTAG) on FPGA flash EPCQ128A and after reboot device, FPGA is successfully configured
• RBF is flashed (via TFTP SW update) on FPGA flash EPCQ128A, but after reboot device, FPGA is not configured

Files JIC and RBF are generated from same SOF.

Regards,

Dragan

Hello SooYL,

thank you for answer.

For flashing old FPGA flash EPCQ128N we use RBF file and due to we try to generate correct RBF file flashing new FPGA flash EPCQ128A as well.

We have tried with RPD, but size of that file was bigger than size of FPGA flash which is available from Linux.

Anyhow we will try to generate RPD according your suggestion.

JIC and RBF, which were generated for old FPGA flash EPCQ128N (Quartus 15.0.0 was used), have same sequences at the beginning of files:

JIC: ...6A 6A 6A 6A 36 F0 ...

RBF: ...6A 6A 6A 6A 36 F0 ...

while JIC and RBF, which are generated for new FPGA flash EPCQ128A (Quartus 18.1.0 is used), have different sequences at the beginning of files:

JIC: ...AF A6 A6 A6 66 03...

RBF: ...6A 6A 6A 6A 36 F0 ...

Have you noticed differences above? Do you have some explanation?

Regards,

Dragan