Once the hardware debugged will most
changes be done in the software. Its however quite timeconsuming
to repeat the Synthesize - Place&Route process each time a
single bit changes in the BlockROM.
The JTAG_loader_ROM_form.vhd utilizes
the fact that all BlackRAM / ROMs can be used as Dual-Port.
Hence is it possible to program a BlockROM directly without
changing the rest of the hardware.
Too bad can't this be done with a USB
programming interface and the Digilent Adapt Suite, only with a
"real" JTAG programming tool