I am looking at writing a command parser for an SX28. 
Flying at 50 or 100 MIPS, the program will execute from 
external SPI memory (like a Stamp, just faster). There 
are plenty of SPI EEPROMs out there, but I haven't noticed 
an SPI RAM chip I can use for scratch memory/variables. 
Has anyone seen anything like this?

At a  fraction of the cost, such a parser would emulate 
a real mean micro. Your PC becomes the ICE, and the 
RS232 port the programmer. On-the-fly program updates 
will be real easy too.

-- 
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