mjb/altos/src/stm, branch telescience-v0.2

altos: Crank fast SPI on STM to 8MHz

2013-01-14T04:54:14+00:00

With the GPIO pins set to 10MHz now, we can run SPI at the maximum possible speed (8MHz). Signed-off-by: Keith Packard

altos: Set STM GPIO output speed for SPI pins correctly

2013-01-14T04:54:14+00:00

The GPIO pin settings affect the output impedence, and hence the maximum speed for SPI. Cranking these to suitable values allows SPI to run at full speed. Signed-off-by: Keith Packard

altos: Initial telescience bits

2013-01-13T04:11:38+00:00

These might do something, and should at least bring up USB Signed-off-by: Keith Packard

altos: Add support for 115200 baud serial rates

2012-12-01T00:03:45+00:00

Necessary for flashing skytraq chips Signed-off-by: Keith Packard

altos: Make stdio 8-bit clean by making pollchar return int

2012-12-01T00:01:07+00:00

We were stealing one value (0xff) in the return value from pollchar to indicate 'not ready yet'. Instead of doing that, use the integer value -1 and have pollchar return an int instead of a char. That necessitated cleaning a few other bits to make sure that 0xff wouldn't get promoted to -1 on accident. Signed-off-by: Keith Packard

altos/stm: Support LEDs on multiple ports

2012-11-01T17:48:08+00:00

Split out the bits in a fairly simplistic fashion so that we support no more than 16 LEDs still. Signed-off-by: Keith Packard

altos: Provide ao_task_alarm_tick to reduce per-tick cost

2012-10-26T21:07:04+00:00

Cache the next wakeup time and check that before jumping to the task code. Signed-off-by: Keith Packard

altos: Leave interrupts disabled while checking for task to run

2012-10-26T21:07:04+00:00

Otherwise, we run the risk of an interrupt waking a task after we've decided to idle the CPU. Signed-off-by: Keith Packard

altos: Clean up stm arch macros a bit.

2012-10-25T20:38:13+00:00

Turn a bunch of the macros into inline functions. Clean up the reboot method to use the stm_scb structure. Signed-off-by: Keith Packard

altos: Switch drivers to ao_arch_block/release_interrupts

2012-10-25T18:25:42+00:00

Stop using cli/sei, which are avr-specific Signed-off-by: Keith Packard