CHG: temporary disable hitag2_uid detection. Loop times out sometimes.

[proxmark3-svn] / armsrc / lfops.c

diff --git a/armsrc/lfops.c b/armsrc/lfops.c
index 71d9ba95db49488dabf1c6c13f7ef0f6a6edc4ce..0dc5bcf9cee1f95e34ece58662971fbca7b02942 100644 (file)
--- a/armsrc/lfops.c
+++ b/armsrc/lfops.c
@@ -78,6 +78,8 @@ void ModThenAcquireRawAdcSamples125k(uint32_t delay_off, uint32_t periods, uint3
 
        // now do the read
        DoAcquisition_config(false);
+       
+       FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 }
 
 /* blank r/w tag data stream
@@ -1737,3 +1739,54 @@ void EM4xWriteWord(uint32_t Data, uint8_t Address, uint32_t Pwd, uint8_t PwdMode
        FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); // field off
        LED_D_OFF();
 }
+
+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_ext(false);
+
+       // Set up FPGA, 132kHz to power up the tag
+       FpgaDownloadAndGo(FPGA_BITSTREAM_LF);
+       FpgaSendCommand(FPGA_CMD_SET_DIVISOR, 89);
+       FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_ADC | FPGA_LF_ADC_READER_FIELD);
+
+       // Connect the A/D to the peak-detected low-frequency path.
+       SetAdcMuxFor(GPIO_MUXSEL_LOPKD);
+       
+       // 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(3600);     
+       
+/*
+       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
+       DoAcquisition_default(-1, true);
+       
+       // Turn the field off
+       FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); // field off
+       cmd_send(CMD_ACK,0,0,0,0,0);    
+       LED_A_OFF();
+}