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Parallel AVR programmer
This programmer is designed to program Atmel AVR microcontrollers in either parallel or serial mode, while connected to a host machine using RS232. It's controlled by an 8051 (actually developed using a Dallas DS5000) and should work with most variants, since it doesn't use any special features. I hope it won't be too difficult to modify for use with an 8031 (external ROM) or one of Don's DT103 Simmsticks.
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The programmer follows the recommendations of Atmel's AVR910 application note and should support 1200C, 1200D and 8515A. It does NOT yet support the 8252. I don't know what the difference is between the 1200C and 1200D, but I treat them both the
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