FPGA Hacking

This page contains a collection of information about the fgpa on the pjrc mp3 player.

VHDL Releases

1.0 (17-Jan-2003)

• Download the 0.6.9 firmware with the vhdl fpga here

• Download fpga patch file here

• Download source code here

• Complete and working

• Functionally identical to pjrc fpga except for slight timing change on ide_wr signal

• Utilisation is at 90%

FAQ

How do I install this in my player?

Download the complete firmware to your player as per the pjrc instructions or recompile the code with the mp3.mcs file replaced.

How do I know which FPGA I'm using?

The startup screen will tell you which device you are using.  It will either say "Config FPGA: OK (pjrc)" or "Config FPGA: OK (vhdl)"

Why would I want to use this?

To help me test it.  Otherwise I'm not sure since it is the same as the pjrc download at the moment.

Local Resources

• Postcards from Paul

Other Resources

• Schematic diagrams of pjrc version