mjb/altos/src/stm, branch altosdroid_v1.2

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/stm: Always check for idle IN buffer before sending

2013-03-31T19:24:38+00:00

Unlike the AVR and CC1111 USB drivers, the STM usb driver queues IN bytes in a local buffer instead of in the driver; this means that the driver is queuing bytes while the previous IN packet is queued for the host, which allows for overlapping execution. It also means that when the local buffer is full, we must check to see if the host has picked up the previous IN packet before trying to queue another IN packet for transmission. This is done by always waiting for the IN buffer to be ready before sending data. Signed-off-by: Keith Packard

altos/stm: Add debugging mechanism to STM USB driver

2013-03-31T19:24:28+00:00

This adds a pile of debugging hooks to the USB driver to try and isolate various lockup-related issues. It's all disabled by default, of course. Signed-off-by: Keith Packard

altos: Do not release interrupts from any pollchar function

2013-03-31T19:24:24+00:00

getchar relies on interrupts being blocked across the pollchar calls and into the sleep call or it may go to sleep with data pending. This prefixes all pollchar functions with _ to indicate that they are to be called with interrupts blocked and eliminates all interrupt manipulation calls from within the pollchar functions. Signed-off-by: Keith Packard

altos: Use FTDW, clear DATA bit. Disable backup write protection

2013-03-28T01:43:42+00:00

The newer(?) chips in telegps didn't like the previous programming scheme, so go back to fixed time for write, which does an implicit erase before every write. Also clear the DATA bit, which is only needed for double word erase/programming. Signed-off-by: Keith Packard

altos/stm: Ensure SPI always sends 0xff during receive

2013-03-26T21:26:38+00:00

SD cards require 0xff when fetching data Signed-off-by: Keith Packard

Merge branch 'telescience-v0.2'

2013-02-24T08:20:54+00:00

altos/stm: Add more bits to NVIC register definitions

2013-02-24T08:19:49+00:00

This cleans up a few values, adds more comments and a few more NVIC fields. Signed-off-by: Keith Packard

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