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