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Wednesday, 11. July 2007
ATtiny2313 on the WOSP

Added a microchip to the Way Old-School Programmer. I flashed the program to the 2313 using my Arduino and a custom program. I send lines from the Intel SRecord (hex) file to arduino, it writes the bytes over the SPI interface to the 2313.

The first program ran the two LED banks on the same data (an incremented register). I had all kinds of noise on the board, lights that wouldn't light up, lights that were always on, and so on. Even the reset switch was faulty. It was all cold-soldier joints. Once I got that sorted out it started working like a charm.

Did a few revs of the software, the current one counts up on the yellow LED bank and lights all the lights from right to left on the red bank. Fun to watch...

My next step is to get serial comms working with the USB port (CP2021 breakout from Sparkfun.com). Then I can work on the input stages.

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8152 days of detection
mod: 12/3/08, 5:42 AM

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Biography

Randall Bohn lives in Orem, Utah, USA. He works as a Software Quality Engineer. He is a big fan of the AVR line of microcontrollers. He has been in the computer industry since 1989. Randall is married and has three children.

rsbohn can be reached via gmail.com.


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