Did you see the post about the Maple a few days ago?
I didn't think that the gnu download supported Cortex M3 yet, so you pretty much had to download from codesorcery... Is that no longer true?
-mcpu=nameThis specifies the name of the target ARM processor. GCC uses this name to determine what kind of instructions it can emit when generating assembly code. Permissible names are: `arm2', `arm250', `arm3', `arm6', `arm60', `arm600', `arm610', `arm620', `arm7', `arm7m', `arm7d', `arm7dm', `arm7di', `arm7dmi', `arm70', `arm700', `arm700i', `arm710', `arm710c', `arm7100', `arm720', `arm7500', `arm7500fe', `arm7tdmi', `arm7tdmi-s', `arm710t', `arm720t', `arm740t', `strongarm', `strongarm110', `strongarm1100', `strongarm1110', `arm8', `arm810', `arm9', `arm9e', `arm920', `arm920t', `arm922t', `arm946e-s', `arm966e-s', `arm968e-s', `arm926ej-s', `arm940t', `arm9tdmi', `arm10tdmi', `arm1020t', `arm1026ej-s', `arm10e', `arm1020e', `arm1022e', `arm1136j-s', `arm1136jf-s', `mpcore', `mpcorenovfp', `arm1156t2-s', `arm1156t2f-s', `arm1176jz-s', `arm1176jzf-s', `cortex-a5', `cortex-a8', `cortex-a9', `cortex-r4', `cortex-r4f', `cortex-m3', `cortex-m1', `cortex-m0', `xscale', `iwmmxt', `iwmmxt2', `ep9312'.
Now I'm thinking of making a few of these boards based on the schematic available
The MIT boys took over one year to realize that they needed a 4 layer board (more $$$$ cost) to reduce the noise and I/O crosstalk.
I'm interested in learning for a practical reason, not just theoretical
One aspect, I think, is just raw edge transition speed. Even if you are only toggling a I/O pin at 1 mhz it's edge rise and fall times are determined by the fundamental internal chip clock speed, so likely to cause more problems when using a 80hmz chip then a 16mhz chip, no?
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