Major rework of hf mf nested:

[proxmark3-svn] / armsrc / util.c

diff --git a/armsrc/util.c b/armsrc/util.c
index 9bea9e7efbcddc3c5adf29b21a30090afc9cfc7e..dc18e5e385247ac727a259c6095bd8e008c0b60f 100644 (file)
--- a/armsrc/util.c
+++ b/armsrc/util.c
@@ -11,6 +11,7 @@
 #include "proxmark3.h"
 #include "util.h"
 #include "string.h"
+#include "apps.h"
 
 size_t nbytes(size_t nbits) {
        return (nbits/8)+((nbits%8)>0);
@@ -357,6 +358,14 @@ void StartCountMifare()
        AT91C_BASE_TC0->TC_CCR = AT91C_TC_CLKEN;                                // enable TC0
        AT91C_BASE_TC1->TC_CCR = AT91C_TC_CLKEN;                                // enable TC1
        AT91C_BASE_TC2->TC_CCR = AT91C_TC_CLKEN;                                // enable TC2
+
+       // activate the ISO14443 part of the FPGA. We need the clock and frame signals.
+       FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_TAGSIM_LISTEN);
+
+       // synchronize the counter with the ssp_frame signal.
+       while(AT91C_BASE_PIOA->PIO_PDSR & GPIO_SSC_FRAME);              // wait for ssp_frame to be low
+       while(!(AT91C_BASE_PIOA->PIO_PDSR & GPIO_SSC_FRAME));   // sync on rising edge of ssp_frame (= start of transfer)
+
        AT91C_BASE_TCB->TCB_BCR = 1;                                                    // assert Sync (set all timers to 0 on next active clock edge)
 }