New Contributor
Frequent ContributorHi Sle2,
A user cannot write the RPD file in one go. This is correct, in any flash device you can send the data one-byte at a time. This is pretty much what ASMI IP feature offers. As mentioned previously, you can check from the ASMI IP user guide which write operation that fits to your requirement either a single-byte write or page-write operation:
https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/ug/ug_altasmi_parallel.pdf
Typically users would user RSU IP to reconfigure the FPGA with multiple different images and have a factory image (that function as fail-safe image). There is known issue for Cyclone V, Arria V and Stratix V that cause the RSU IP won't work with just a single factory image. You can refer to this KDB link:
If you just want to update and store a single image in the EPCQ128, then yes you need to be able to control the nCONFIG pin to trigger the reconfiguration. You need to find a way such as a controller to pulse the nCONFIG (high to low and return back to high).
Regards,
Nooraini
