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Altera_Forum
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16 years ago

Hardware Reference Design

Hello I have been looking for a very simple programming circuit for cyclone III FPGA's for the past 6 months or so, and have not been able to find one...then the next thing I know bemicro came out wi...
Altera_Forum's avatar
Altera_Forum
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11 years ago

Hi everyone,

I figured I'd reply despite this thread being quiet for some time.

I'm interested in creating a direct microUSB to FPGA JTAG connection using the FT2232 on a Cyclone IV-based board I'm designing. I'd like it to appear as a USB blaster and be compatible with the Quartus programming software. Programming speed is not a concern of mine.

Based on FvM's notes in the previous posts, this sounds pretty doable. I know there's no schematic available showing how to wire this up, but would it be possible for someone to draw up a quick block diagram with connections, pull-ups, etc just to make sure I'm wiring this correctly?

I plan to use either an EPCQ 16Mbit or 32Mbit PROM running in AS x1 mode along with my EP4CGX30CF23C7N FPGA running the serial flash loader (SFL).

Any help would be appreciated :-)

Thanks!

Matt