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1#ifndef LFSAMPLING_H
2#define LFSAMPLING_H
3
e04475c4 4/**
5* acquisition of Cotag LF signal. Similar to other LF, since the Cotag has such long datarate RF/384
6* and is Manchester?, we directly gather the manchester data into bigbuff
7**/
8void doCotagAcquisition(size_t sample_size);
9uint32_t doCotagAcquisitionManchester(void);
10
7cfc777b 11/**
12* acquisition of T55x7 LF signal. Similart to other LF, but adjusted with @marshmellows thresholds
13* the data is collected in BigBuf.
14**/
66837a03 15void doT55x7Acquisition(size_t sample_size);
7cfc777b 16
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17/**
18* Initializes the FPGA for reader-mode (field on), and acquires the samples.
19* @return number of bits sampled
20**/
1fbf8956 21uint32_t SampleLF(bool silent);
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22
23/**
24* Initializes the FPGA for snoop-mode (field off), and acquires the samples.
25* @return number of bits sampled
26**/
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27uint32_t SnoopLF();
28
a37228c8 29// adds sample size to default options
30uint32_t DoPartialAcquisition(int trigger_threshold, bool silent, int sample_size);
31
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32/**
33 * @brief Does sample acquisition, ignoring the config values set in the sample_config.
34 * This method is typically used by tag-specific readers who just wants to read the samples
35 * the normal way
36 * @param trigger_threshold
37 * @param silent
38 * @return number of bits sampled
39 */
40uint32_t DoAcquisition_default(int trigger_threshold, bool silent);
41/**
42 * @brief Does sample acquisition, using the config values set in the sample_config.
43 * @param trigger_threshold
44 * @param silent
45 * @return number of bits sampled
46 */
47
48uint32_t DoAcquisition_config( bool silent);
49
50/**
51* Setup the FPGA to listen for samples. This method downloads the FPGA bitstream
52* if not already loaded, sets divisor and starts up the antenna.
53* @param divisor : 1, 88> 255 or negative ==> 134.8 KHz
54* 0 or 95 ==> 125 KHz
55*
56**/
57void LFSetupFPGAForADC(int divisor, bool lf_field);
58
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59/**
60 * Called from the USB-handler to set the sampling configuration
61 * The sampling config is used for std reading and snooping.
62 *
63 * Other functions may read samples and ignore the sampling config,
64 * such as functions to read the UID from a prox tag or similar.
65 *
66 * Values set to '0' implies no change (except for averaging)
67 * @brief setSamplingConfig
68 * @param sc
69 */
70void setSamplingConfig(sample_config *sc);
71
72sample_config * getSamplingConfig();
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73
74void printConfig();
75
76
31abe49f 77#endif // LFSAMPLING_H
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