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Fix 15 snoop (#752)

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* fixing hf 15: implement hf 15 snoop
* rename hf 15 record to hf 15 snoop
* speedup sampling / decoding:
*   new FPGA mode FPGA_HF_READER_RX_XCORR_AMPLITUDE implements amplitude(ci, cq) on FPGA
*   inlining the decoders in iso15693.c
*   inlining memcpy/memset in LogTrace()
*   giving up the moving correlator for SOF in Handle15693SamplesFromTag
* decode more of EOF in Handle15693SamplesFromTag()
* some refactoring
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pwpiwi 2019-01-12 13:28:26 +01:00 • committed by GitHub
commit d9de20fa4b
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17 changed files with 715 additions and 574 deletions
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fpga/fpga_hf.v
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@ -75,6 +75,8 @@ wire hi_read_rx_xcorr_848 = conf_word[0];
wire hi_read_rx_xcorr_snoop = conf_word[1];
// divide subcarrier frequency by 4
wire hi_read_rx_xcorr_quarter = conf_word[2];
// send amplitude only instead of ci/cq pair
wire hi_read_rx_xcorr_amplitude = conf_word[3];
// For the high-frequency simulated tag: what kind of modulation to use.
wire [2:0] hi_simulate_mod_type = conf_word[2:0];
@ -102,7 +104,7 @@ hi_read_rx_xcorr hrxc(
hrxc_ssp_frame, hrxc_ssp_din, ssp_dout, hrxc_ssp_clk,
cross_hi, cross_lo,
hrxc_dbg,
hi_read_rx_xcorr_848, hi_read_rx_xcorr_snoop, hi_read_rx_xcorr_quarter
hi_read_rx_xcorr_848, hi_read_rx_xcorr_snoop, hi_read_rx_xcorr_quarter, hi_read_rx_xcorr_amplitude
);
hi_simulate hs(