bitbang

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Bus Pirate: Binary I2C mode

October 14, 2009 in Bus Pirate, binmode by Ian | 14 comments

binic2

See the latest version in the documentation wiki.

The Bus Pirate’s new binary modes provide a consistent, logical way to script actions from Python, Perl, etc. We already introduced the new binary bitbang and SPI modes, today we’ll document the binary I2C mode. Binary I2C will be in the v2.6 firmware release, for now you can grab the v2.6 nightly compile.

We want your scripts! If you script something for any of the new modes, in any language, we’d like to host it in the example scripts folder. We’ll send Bus Pirate probe cable kits to two authors of Bus Pirate binary mode scripts posted by the end of next week (October 24th, 2009).

Binary I2C mode specification follows after the break.

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Bus Pirate: Binary bitbang mode

October 9, 2009 in Bus Pirate, binmode by Ian | 11 comments

rawspi

See the latest version in the documentation wiki.

There’s two new binary I/O libraries in the v2.3 Bus Pirate firmware. Raw bitbang mode provides direct control over the Bus Pirate pins and hardware using a simple single-byte protocol. We discussed the new raw SPI mode yesterday.

Hopefully the raw access modes inspire some interesting new Bus Pirate tools using PC software. There’s already a patch for AVRDude AVR programmer in the works.

Full documentation of the raw bitbang binary I/O mode after the break.

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Bus Pirate: Raw SPI mode

October 8, 2009 in Bus Pirate, binmode by Ian | 27 comments

rawspi

See the latest version in the documentation wiki.

Raw SPI is a new mode that provides high-speed access to the Bus Pirate SPI hardware. It was developed in conjunction with Michal Ludvig, so that AVRDude can use the  Bus Pirate to program AVR microcontrollers and EEPROMs.

Firmware v2.3 includes two new raw I/O modes that give computer software and scripts direct access to the Bus Pirate hardware. Hopefully this opens the door to a whole new class of Bus Pirate applications, like chip programmers. In this post we describe the raw SPI access mode. We’ll describe the raw bitbang mode in a few days. The protocol is documented below the break.

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