mjb/altos/src/stm, branch 1.4.9.1

altos: Rework packet receive for cc1120

2014-07-05T07:38:10+00:00

Instead of blocking on PQT, just set up the receiver to start going and when the first bit interrupt comes in, grab the SPI bus if possible and configure it for reception. This improves sensitivity in the radio by a significant amount while making the code conceptually a bit nicer. Signed-off-by: Keith Packard

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: stm and lpc ao_boot.h were identical. move to kernel.

2014-05-16T05:46:41+00:00

These two files were absolutely identical, so share them by moving under kernel instead.x Signed-off-by: Keith Packard

altos: Use explicit boot loader signal in ao_boot_reboot

2014-05-16T05:38:40+00:00

Instead of just "knowing" that ao_boot_loader will be passed zero when the application wants to get back to the boot loader, explicitly define the values so that both sides always agree. Signed-off-by: Keith Packard

altos/stm: Use #define'd constants for GPIO register addresses

2014-05-13T05:56:38+00:00

This lets the compiler short-circuit the tests in ao_enable_gpio and ao_disable_gpio to save a bit of code space and time. Signed-off-by: Keith Packard

altos/stm: Figure out available flash space based on chip id registers

2014-05-13T05:55:38+00:00

Look at the flash size and the device id registers to figure out how much flash is available. Signed-off-by: Keith Packard

altos/stm: White space fix in ao_boot_pin.c

2014-05-13T05:54:35+00:00

altos/stm: Use flash address of boot loader instead of 0x0

2014-05-13T05:53:07+00:00

Flash is at 0x08000000, but when the chip boots, it can be at 0x0 as well. Use the 0x08000000 address when rebooting to flash Signed-off-by: Keith Packard

altos: Simplify quadrature tracking

2014-05-09T07:05:39+00:00

Set the timer to 200Hz for a 5ms debounce interval. Then, simply look for transitions ending in both bits in the encoder being off, which indicates the the encoder is resting in a detent. If bit '2' is turning off, the encoder was rotated clockwise, otherwise the encoder was rotated counter clockwise. This is a lot more reliable, although still not perfect. Signed-off-by: Keith Packard

altos: Rename 'core' to 'kernel'

2014-04-05T07:22:29+00:00

core remains a bad name to use -- dirvish skips files (and directories, it seems) with that name. Signed-off-by: Keith Packard