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* altos/attiny: Don't initialize the CS pin in the general SPI setupKeith Packard2012-10-30
| | | | | | | Let the CS pin be configured by the driver, which can set the correct value before enabling the output. Signed-off-by: Keith Packard <keithp@keithp.com>
* altos/attiny: Update to new interrupt macrosKeith Packard2012-10-29
| | | | | | Add ao_arch_block/release_interrupts macros to attiny architecture Signed-off-by: Keith Packard <keithp@keithp.com>
* altos: Add attiny architecture filesKeith Packard2012-10-12
These are designed to work with the ATtiny85 processor, but can presuambly be easily adapted to others in that series Signed-off-by: Keith Packard <keithp@keithp.com>