void ToSendReset(void);
void ListenReaderField(int limit);
void AcquireRawAdcSamples125k(int at134khz);
-void DoAcquisition125k(void);
+void SnoopLFRawAdcSamples(int divisor, int trigger_threshold);
+void DoAcquisition125k(int trigger_threshold);
extern int ToSendMax;
extern uint8_t ToSend[];
extern uint32_t BigBuf[];
// Definitions for the FPGA commands.
#define FPGA_CMD_SET_CONFREG (1<<12)
#define FPGA_CMD_SET_DIVISOR (2<<12)
+#define FPGA_CMD_SET_USER_BYTE1 (3<<12)
// Definitions for the FPGA configuration word.
// LF
-#define FPGA_MAJOR_MODE_LF_READER (0<<5)
-#define FPGA_MAJOR_MODE_LF_EDGE_DETECT (1<<5)
+#define FPGA_MAJOR_MODE_LF_ADC (0<<5)
+#define FPGA_MAJOR_MODE_LF_EDGE_DETECT (1<<5)
#define FPGA_MAJOR_MODE_LF_PASSTHRU (2<<5)
// HF
#define FPGA_MAJOR_MODE_HF_READER_TX (0<<5)
#define FPGA_MAJOR_MODE_HF_ISO14443A (3<<5)
// BOTH
#define FPGA_MAJOR_MODE_OFF (7<<5)
+// Options for LF_ADC
+#define FPGA_LF_ADC_READER_FIELD (1<<0)
// Options for LF_EDGE_DETECT
+#define FPGA_CMD_SET_EDGE_DETECT_THRESHOLD FPGA_CMD_SET_USER_BYTE1
#define FPGA_LF_EDGE_DETECT_READER_FIELD (1<<0)
+#define FPGA_LF_EDGE_DETECT_TOGGLE_MODE (1<<1)
// Options for the HF reader, tx to tag
#define FPGA_HF_READER_TX_SHALLOW_MOD (1<<0)
// Options for the HF reader, correlating against rx from tag