portapack-mayhem/mayhem-firmware
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cde15e42710f1989d9ec57ce12224a1557c34487
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5 Commits

Author SHA1 Message Date
Jared Boone cde15e4271 Generalize fir_and_decimate_by_2_complex_fast. 
Permit decimation_factors other than 2.
Permit tap counts != 64 (but still must be multiple of 8).
Half the amount of tap memory required.
Performance is significantly degraded due to greater flexibility -- most likely due to separate sample buffer shift phase, instead of performing shift during output sample calculation.
 2015-11-06 09:40:04 -08:00
Jared Boone be78ed657f Remove taps_count template arg for FIRAndDecimateBy2Complex. 
Use heap to allocate samples and taps buffers, so filters of different lengths can be supported.
 2015-11-06 09:40:04 -08:00
Jared Boone 0f73d6061a Remove old decimating FIR code. 2015-11-06 09:40:04 -08:00
Jared Boone e571ca7f1c Change reference initializations errors in GCC 4.8 
Resolves issue #12.
 2015-07-17 12:07:38 -07:00
Jared Boone dc6fee8370 Initial firmware commit. 2015-07-08 08:39:24 -07:00