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How to program a BlockRAM via JTAG / USB

Last updated: 19-03-09

If you want to use a Picoblaze in your digital design must you start creating the hardware needed together with a "BlockROM" which initialized with the program. The command line below will do the trick .. no problems

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




JTAG programmer for printerport	Xilinx Platform Cable USB programmer

The COE command will create a textfile named Romfile.COE EXEC will call a Batch file



If the hex2svf.cnf file don't exist will the hex2svfsetup program be called. Afterwards will a command file impact_batch_commands be build. Watch the list below.












		The result of the setup above called hex2svf.cnf For some "strange" reason will it appear as "Hurtigt opkald" at my computer

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