mjb/altos/src/stm, branch debian/1.7-1

stm: Add more mask-based GPIO controls

2017-04-04T23:04:25+00:00

Lets cortexelf do more things with groups of pins, rather than one pin at a time. Signed-off-by: Keith Packard

stm: Add a few more GPIO functions to make dealing with the 1802 easier

2017-04-03T18:37:21+00:00

ao_gpio_set_mask and ao_gpio_get_all Signed-off-by: Keith Packard

altos: add button matrix driver

2017-04-03T02:30:57+00:00

Scans the matrix once per clock tick queuing events for changed keys. Signed-off-by: Keith Packard

stm: Use common flash wait loop instead of inlining

2017-04-02T22:56:17+00:00

Signed-off-by: Keith Packard

cortexelf-v1: Use new memory map to access all flash and ram. Add fat.

2017-04-02T22:40:03+00:00

Signed-off-by: Keith Packard

altos/stm: Add draw and lisp to make search paths.

2017-02-20T20:34:02+00:00

Signed-off-by: Keith Packard

altos/stm: Add nvic priority register fields. Add more TIM234 defines.

2017-02-20T20:34:02+00:00

Signed-off-by: Keith Packard

altos/stm: Make i2c code handle PCLK1 of 24MHz

2017-02-20T20:34:02+00:00

Just adds the necessary defines to the code. Signed-off-by: Keith Packard

altos/stm: Allow DMA channels to be hijacked by other code

2017-02-20T20:34:01+00:00

This lets code which needs finer control over DMA to use the channel without interference, and leaves the DMA engine running so that it can. Signed-off-by: Keith Packard

altos/stm: Allow use basepri instead of primask for masking interrupts

2017-02-20T20:32:50+00:00

This allows for high priority interrupts (priority 0) to run, even when other interrupts are blocked. Code executing in such interrupt handlers must not attempt to control task execution as that will race with the scheduler. Select this by defining AO_NONMASK_INTERRUPT in ao_pins.h. non-maskable interrupt priority is AO_STM_NVIC_NONMASK_PRIORITY Signed-off-by: Keith Packard