aspspi – USBasp SPI terminal

in AVR by DP | 2 comments

aspspi-write

Nerd Ralph writes:

While writing the picoboot module for avrdude, I noticed avrdude has a terminal mode which allows for commands to be sent to an AVR. The serial programming interface for AVR MCUs uses SPI, similar to the nrf modules. I realized instead of an AVR, the programmer could be attached to any device that communicates via SPI. A couple hours later I had finished writing aspspi for avrdude – which permits a USBasp to be used for interactive SPI communication.

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Comments

  1. arinanuha says:

    Great. I’ve been looking for some USB SPI terminal to demonstrate my graduation project. I’m planning to buy buspirate at first.

  2. It’s limited to 4-bytes at a time based on avrdude’s terminal mode, but I’m intending to patch the terminal mode code to handle variable lengths.

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