My $.02: Why don't you just use a regular old EPROM to hold your ppcboot monitor image.? IIRC, it has a serial driver and provision for downloading linux kernels to SDRAM. I'm not sure if it has provision for R/W of flash, but maybe.
You're planning to run at a very low clock speed on your wire-wrapped board. Ugh! Better check the 8240 datasheet, there may be lower limits to what's allowed. You'll be very handicapped by not having a BDI2000, which, BTW, uses JTAG port for fast downloads to SDRAM. Surely your school has a budget for development tools? The BDI would have other uses besides just your 8240 project. Good luck, Ron ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
