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* Legic: rewrite reader to use xcorrelation and precise timing - Even tough Legic tags transmit just AM, receiving using xcorrelation results in a significantly better signal quality. - Switching from bit bang to a hardware based ssc frees up CPU time for other tasks e.g. prng and demodulation - Having all times based on a fixed ts, results in perfect rwd-tag synchronization without magic +/- calculations. * hi_read_tx: remove jerry-riged hysteresis based receiver - This feature got obsolete by a x-correlation based receiver. * Legic: adjusted sampling to new ssp clock speed - Sampling is 4 times faster and pipeline daly reduced to 1/4. The new code samples each bit earyler to account for the shorter pipeline. That introduced bit errors by leeking the next bit into the current one. * Legic: average 8 samples for better noise rejection. * Update CHANGELOG.md
18 lines
734 B
C
18 lines
734 B
C
//-----------------------------------------------------------------------------
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// (c) 2009 Henryk Plötz <henryk@ploetzli.ch>
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//
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// This code is licensed to you under the terms of the GNU GPL, version 2 or,
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// at your option, any later version. See the LICENSE.txt file for the text of
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// the license.
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//-----------------------------------------------------------------------------
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// LEGIC RF emulation public interface
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//-----------------------------------------------------------------------------
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#ifndef __LEGICRF_H
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#define __LEGICRF_H
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extern void LegicRfSimulate(int phase, int frame, int reqresp);
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extern void LegicRfReader(int bytes, int offset);
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extern void LegicRfWriter(int bytes, int offset);
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#endif /* __LEGICRF_H */
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