// now do the read
DoAcquisition_config(false);
+
+ FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
}
/* blank r/w tag data stream
void Cotag() {
+//#define WAIT2200 { FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); WaitUS(2035); }
#define WAIT2200 { FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); WaitUS(2200); }
-
LED_A_ON();
//clear buffer now so it does not interfere with timing later
- BigBuf_Clear_keep_EM();
+ BigBuf_Clear_ext(false);
// Set up FPGA, 132kHz to power up the tag
FpgaDownloadAndGo(FPGA_BITSTREAM_LF);
// Connect the A/D to the peak-detected low-frequency path.
SetAdcMuxFor(GPIO_MUXSEL_LOPKD);
- // 50ms for the resonant antenna to settle.
- SpinDelay(50);
-
// Now set up the SSC to get the ADC samples that are now streaming at us.
FpgaSetupSsc();
+
// start a 1.5ticks is 1us
StartTicks();
//send start pulse
- TurnReadLFOn(800);
- WAIT2200
- TurnReadLFOn(3600);
- WAIT2200
- TurnReadLFOn(800);
- WAIT2200
+ TurnReadLFOn(800); WAIT2200
+ TurnReadLFOn(3600); WAIT2200
+ TurnReadLFOn(800); WAIT2200
TurnReadLFOn(3600);
- // Turn field on to read the response
- TurnReadLFOn(READ_GAP);
+/*
+ TurnReadLFOn(740); WAIT2200
+ TurnReadLFOn(3330); WAIT2200
+ TurnReadLFOn(740); WAIT2200
+ TurnReadLFOn(3330);
+
+
+burst 800 us, gap 2.2 msecs
+burst 3.6 msecs gap 2.2 msecs
+burst 800 us gap 2.2 msecs
+pulse 3.6 msecs
+*/
// Acquisition
- doT55x7Acquisition(20000);
+ DoAcquisition_default(-1, true);
// Turn the field off
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); // field off