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This keeps the compiler from whinging about the lack of a prototype.
Signed-off-by: Keith Packard <keithp@keithp.com>
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Make the FEC code just set the CRC_OK bit like the cc1111 radio does;
eliminates a bunch of weird conventions across the FEC API.
Signed-off-by: Keith Packard <keithp@keithp.com>
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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>
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Decode radio input one interleave block at a time. This overlaps the
decode computation with the packet reception, leading to lower latency
in an attempt to keep up with the transmitter.
Signed-off-by: Keith Packard <keithp@keithp.com>
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Call the fec decode function, compute RSSI and check CRC
Signed-off-by: Keith Packard <keithp@keithp.com>
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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>
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Minimize data usage, make data arrays static
Signed-off-by: Keith Packard <keithp@keithp.com>
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I think I understand how it works now. It's not exactly speedy, and it
uses a lot of memory.
Signed-off-by: Keith Packard <keithp@keithp.com>
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It's not a driver as it's not specific to the 1120 chip
Signed-off-by: Keith Packard <keithp@keithp.com>
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