mjb/altos/src/drivers/ao_cc1200_CC1200.h, branch pong

altos/cc1200: Adjust bit-sync configuration

2015-02-15T07:18:38+00:00

The default bit timing adjustment mechanism allows for only a 0.2% deviation from the programmed bit timing. I found one TeleMini device which is beyond that tolerance as it was built with an older crystal with more error. Switch to the more expensive synchronization mechanism which allows up to 2% timing error, but requires a multi-byte preamble (which we have). This fixes packet mode nicely. Signed-off-by: Keith Packard

altos: Adjust CC1200 RSSI reporting value

2014-12-23T01:11:51+00:00

On the test setup, we were about 13dB off, so tweak the settings to suit. This result wasn't tested; it's just a rough offset until we get a production run of TeleDongle boards back to do more systematic measurements. Signed-off-by: Keith Packard

altos/cc1200: Open up preamble detect to improve sensitivity

2014-11-24T02:50:57+00:00

Increase soft decision PQT value to max (15) to ensure that we detect even weak packets. Signed-off-by: Keith Packard

altos: Perform cc1200 calibration less often. Tweak radio params

2014-10-26T00:44:48+00:00

This performs calibration after every 4 operations, or when the frequency changes. This reduces the time it takes to get to receive mode. This also makes the sync and preamble qualifiers more strict to reject bad packets. Signed-off-by: Keith Packard

altos: Increase PQT value for cc1200 improving sensitivity

2014-10-25T17:20:07+00:00

The PQT value indicates how 'good' the preamble is; higher values allow a lower quality of preamble to pass the test, permitting more packets to be decoded. Signed-off-by: Keith Packard

altos: Complete cc1200 driver

2014-10-25T04:24:53+00:00

Deal with differences between cc1120 and cc1200, including built-in packet support and various register changes. This now works to send and receive telemetry, as well as send APRS and RDF. Signed-off-by: Keith Packard

altos: Copy cc1120 driver to cc1200 driver and hack a bit

2014-10-05T07:03:28+00:00

The cc1200 is similar to the cc1120, although many registers have changed. This driver can send a bare carrier and an RDF tone, but does not yet receive or transmit telemetry data. Signed-off-by: Keith Packard