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Altera_Forum's avatar
Altera_Forum
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19 years ago

Custom PFL ciruit

Hello, I need to develop PFL loader circuit, which loads the pof data from flash rom to cyclone II device. The cyclone is configured by passive serial. The PFL megacore has enough function, but...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
19 years ago

if the cyclone device has access to program the flash, you can use a nios to program the flash, and the code to configure the FPGA from the cpld isn't much more then a few couters, the size of which depends on your input clk and the fpga you are configuring.

there is a bunch of logic in the PFL just to program the flash, i believe you can, in quartus 7.1, select to only have the fpga configuration logic.

--dalon