mjb/altos/src/stm/ao_timer.c, branch fox1-v3-sn8

altos: Fake flight code changes in kernel and stm

2014-05-27T18:06:49+00:00

Redirects data input from local sensors to USB sourced data, leaving USB enabled when the computer goes into pad mode. Signed-off-by: Keith Packard

altos: Enable system timer in flash loader and prod watchdog with it

2014-02-09T04:13:38+00:00

This makes it possible to reflash the board without needing to disable the watchdog. Signed-off-by: Keith Packard

altos/stm: Make sure we switch to MSI during timer init

2013-08-29T04:12:25+00:00

Need to ensure that the CPU is actually using the MSI during timer init or all of the other clock changes won't work Signed-off-by: Keith Packard

altos/stm: Remove stale timer defines

2013-08-29T04:10:58+00:00

Stuff from when we weren't using systick Signed-off-by: Keith Packard

altos/stm: Allow core timer to be excluded from build

2013-05-08T04:30:26+00:00

This removes all of the support for the base 100Hz timer from the system, saving space when not needed Signed-off-by: Keith Packard

altos: Use SYSTICK on STM32L

2013-05-08T03:08:01+00:00

It's probably more power efficient than using one of the timers, and it's certainly easier to configure. Signed-off-by: Keith Packard

altoslib/altosui: Carry receiver status around in AltosListenerState

2013-04-09T07:30:36+00:00

This moves the crc_errors into the new structure and adds a receiver battery voltage value there as well. Now the receiver status can be monitored separately from the flight status. That also means that code receiving state updates should be prepared to accept missing listener or flight state values. 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: Add task queues.

2012-10-25T07:07:14+00:00

This replaces the array-based scheduler with a queue-based one instead. It should have the same basic scheduling semantics, but it walks shorter lists for each operation, making it much more efficient when the system has a lot of tasks. Signed-off-by: Keith Packard

altos: Replace __critical usage with ao_arch_critical as needed

2012-10-25T07:07:14+00:00

sdcc offers __critical as a machine-independent way to block interrupts, but as gcc doesn't, we need to use a compiler-independent construct instead. ao_arch_critical has been around since the AVR port, but some old __critical usages remained. This fixes a bunch of random hangs when communicating with MM over USB or the radio as the various stdio loops were running without interrupts blocked between the test and the sleep. Signed-off-by: Keith Packard