Forum Discussion
Altera_Forum
Honored Contributor
12 years ago --- Quote Start --- I will create some states to my FSM that reads the first word from flash to check the byte order. Creating QSYS is not 'easy' for me ;) --- Quote End --- Here's a tutorial to help ease the burden ... http://www.alterawiki.com/wiki/using_the_usb-blaster_as_an_sopc/qsys_avalon-mm_master_tutorial To access the flash you can use Altera's tristate bridge, or you can be lazy and just drive the flash with PIOs and then manually assert chip-select, output-enable, and then address, and read the data. This is a quick-and-dirty test, so that would be acceptable :) --- Quote Start --- What is the difference between RBF and RPD? I'm currently enabling RBF generation via the QII Device Settings dialog. --- Quote End --- I'm not sure. I used to generate RBF files for Stratix II devices. Generate both and look at them in a binary editor ... stick with RBF if that is what you have been using. --- Quote Start --- In previous designs (Cyclone II) I could program via PS simply by shifting out the data byte by byte (LSB first, i think). --- Quote End --- Yep, that is correct http://www.ovro.caltech.edu/~dwh/carma_board/fpga_configuration.pdf --- Quote Start --- Essentally, I want to know whether the PFL grabs the LSByte first when sending the first flash word to the FPGA. --- Quote End --- It should ... but PFL didn't meet my requirements, so I wrote my own per the doc I just linked to. Cheers, Dave