|BurchEd B5 FPGA board.|
I was reminded of the B5 while using one component from the B5 kit: an I/O interface board featuring a MAX3232 serial port line-level converter which converts the high voltages of RS232 to the level used by the B5 (3.3V, I think). This is a useful piece of kit in its own right, very handy for connecting a PC to any FPGA or microcontroller, not just the B5.
I set out to find the documentation for this board, and discovered that it is no longer on the web. BurchEd is no longer in business, and the documentation is gone, having disappeared with BurchEd's website. Until now, for I found the files on my hard disk, and have made them available again here:
- http://www.jwhitham.org/c/BurchEd/b5/ (B5 files)
- http://www.jwhitham.org/c/BurchEd/b3/ (B3 files; older generation device)
|Add-on modules for BurchEd B5. The I/O board is|
the one on the right, just below the parallel port connection.
Even today, the idea of making a low-cost FPGA board for hobbyists is rare and special enough to merit a Kickstarter project like this one. (I'm still toying with the idea of ordering one; it's much cheaper than an Atlys board, but then, no RAM...)