Forum Discussion

SnehalB's avatar
SnehalB
Icon for New Contributor rankNew Contributor
3 years ago
Solved

intel Cyclone V e , FPGA not reconfiguring to new flashed Image in EPCQ flash

Hi, we are using intel cyclone v e device with EPCQ connected serial flash. we are using two IP core in our design 1st generic serial flash controller IP core for flashing EPCQ256 with .rpd image ...
  • YuanLi_S_Intel's avatar
    YuanLi_S_Intel
    3 years ago

    Hi, for CRC error, i think it could be due to the incorrect bitstream / bitstream order when loading it into the QSPI flash. I would suggest to select the appropriate data format when generating RPD file. You can select little endian for it. Otherwise, you need to do bit reversal.


SnehalB's avatar
SnehalB
Icon for New Contributor rankNew Contributor
3 years ago

HI YaunLi,

we are now hopefully able to write image correctly, but still not able to reconfig to new image, getting CRC error this time.

We are flashing only half of the .rpd image as rest of the Image is FFFF... only .

So I have few question ,

1]is bit reversal need to be done in flashing .RPD image?

2] Where is CRC located in .RPD image ?

3] What could probably be wrong for getting CRC error ?

Pls suggest some solution!

thanks & regards!

Snehal Buche