mjb/altos/src/core/ao_fec_tx.c, branch debian/1.3.1-1 AltOS - the operating system for Altus Metrum products https://git.ethernal.org/mjb/altos/atom?h=debian%2F1.3.1-1 2012-06-27T06:11:10+00:00 altos: Optimize FEC encode and decode 2012-06-27T06:11:10+00:00 Keith Packard keithp@keithp.com 2012-06-27T06:11:10+00:00 urn:sha1:f1ae622eff60e05c1f5d8f822a3cf6a85750c6cc Integrate interleaving, CRC and padding within the decode/encode functions. Provide for ISR priorities so that the 1120 RX interrupt takes precedence over the other interrupts or we risk losing bits. Optimize the viterbi decoder a bit (goes from 10ms per packet to 7ms per packet). Signed-off-by: Keith Packard <keithp@keithp.com> altos: improve FEC apis to reduce data copying 2012-06-23T23:05:42+00:00 Keith Packard keithp@keithp.com 2012-06-23T23:05:42+00:00 urn:sha1:b292c14790fc225029cba3f80ce8ad6c5652bc4e Integrate interleaving and whitening into encode and decode steps. Add CRC checking function for receive. Make ao_fec_test program round-trip the data and verify correctness. Signed-off-by: Keith Packard <keithp@keithp.com> altos: optimize Viterbi implementation 2012-06-23T09:12:58+00:00 Keith Packard keithp@keithp.com 2012-06-23T09:12:58+00:00 urn:sha1:f7bf07dfdad260c1f219064957ef08fb480bf20f Minimize data usage, make data arrays static Signed-off-by: Keith Packard <keithp@keithp.com> altos: Move FEC code to core 2012-06-21T16:52:37+00:00 Keith Packard keithp@keithp.com 2012-06-21T16:52:37+00:00 urn:sha1:75e4521ec42a368cebc67a07f8713d7a854ea265 It's not a driver as it's not specific to the 1120 chip Signed-off-by: Keith Packard <keithp@keithp.com>