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by a (Friar)
on May 31, 2000 at 07:15 UTC ( #15571=user: print w/replies, xml ) Need Help??

Long time computer geek, learned perl from the .txt file that came w/ the DOS 4.xx version and have been slightly to excessively evangelical about it ever since. Familiar to contemptious w/ many languages and OSs but am ecumenical about all; right tool for the right job. 'course if you can get the job moved to a decent *nix platform and let perl handle it, makes life easier.

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[shmem]: well finally.
[stevieb]: nice! I just finished a GPS "take me home" device last week, and did a bunch of software updates to it yesterday. I also created a pseudo chip with an Arduino to simulate an IC, where it responds to register read/writes over the I2C bus...
[stevieb]: ...from an I2C master. It's ugly and there are many changes I'm going to make, but I had not done anything like it before. It's designed for my RPi:: automated test platform; a system that does CI on *all* my RPi modules.
[shmem]: pseudo chip?
[stevieb]: well, what happens is the Arduino 'listens' for requests r/w, and does the appropriate thing when it's interrupted based on the 'register' address sent in. It's ugly as it was my first attempt, but I've got great new ideas I'm just sitting.
[stevieb]: ...down to implement now. Here's the sketch as it currently sits
[shmem]: well I use I2C and SPI and stuff, but creating a pseudo chip looks to me like lot of indirection and memory clutter... not?

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