mjb/altos/src/lpc, branch debian/1.6.3-1

altos: Add one-byte SPI output routine for LPC and STM cores

2016-03-26T23:07:20+00:00

This allows for SPI output at interrupt time, one byte at a time. Signed-off-by: Keith Packard

altos/lpc: Add fast timer

2016-03-26T23:07:20+00:00

This offers a faster timer callback for higher-precision operation Signed-off-by: Keith Packard

altos/lpc: Give up on interrupt-driven SPI driver

2015-02-07T09:05:57+00:00

There are just too many limitations in when interrupts are delivered to make them useful. Instead, just drive the SPI directly with the CPU. At higher spi speeds (6Mhz or more), it's probably faster to do it this way anyways. Signed-off-by: Keith Packard

altos/lpc: Double buffer USB data transfers

2015-02-06T00:15:04+00:00

This allocates twice the space in the USB memory so that transactions can be double buffered without using separate CPU memory. Signed-off-by: Keith Packard Conflicts: src/lpc/ao_usb_lpc.c

altos/lpc: Clean up USB endpoint access functions

2015-02-06T00:14:23+00:00

The USB device endpoints can have two pointers in them, but we use only the first. Fix the access functions to take an index as to which we want so that we can disable the other address registers with them instead of requiring open-coded access. Signed-off-by: Keith Packard

Revert LPC usb performance improvements

2015-02-05T23:00:56+00:00

There's something screwy going on, sticking garbage in the input buffer at boot time Signed-off-by: Keith Packard

Revert "altos/lpc: Fix double-buffered USB changes"

2015-02-05T22:54:27+00:00

This reverts commit 41a0604ad1ea1a03e2db7d41731dbadf466b45db.

altos/lpc: Fix double-buffered USB changes

2015-01-23T05:31:45+00:00

These got merged when we were down in Auckland, but before they'd been finished. Transmitting worked fine, but receiving was mis-configuring the OUT buffer size in the hardware. Signed-off-by: Keith Packard

Set version to 1.5.9.1

2015-01-16T09:09:26+00:00

altos/lpc: Switch LPC SPI driver to interrupt-driven

2014-12-23T01:27:09+00:00

This improves performance for SPI transfers, while allowing other tasks to get work done during longer SPI transfers. Signed-off-by: Keith Packard