Merge pull request #16 from alexgrin/iceman_master

[proxmark3-svn] / armsrc / hfsnoop.c

diff --git a/armsrc/hfsnoop.c b/armsrc/hfsnoop.c
index cfded30273d87ba0ba87b2f8330f438c5c44a376..4af8522a5d91b2ea9be7b4da20b65be1320f3c9d 100644 (file)
--- a/armsrc/hfsnoop.c
+++ b/armsrc/hfsnoop.c
@@ -19,7 +19,7 @@ static void RAMFUNC optimizedSnoop(void)
                if(AT91C_BASE_SSC->SSC_SR & AT91C_SSC_RXRDY)
                {
                        *dest = (uint16_t)(AT91C_BASE_SSC->SSC_RHR);
-                       dest = dest + 1;
+                       ++dest;
                }
        }
        //Resetting Frame mode (First set in fpgaloader.c)
@@ -28,8 +28,11 @@ static void RAMFUNC optimizedSnoop(void)
 
 void HfSnoop(int samplesToSkip, int triggersToSkip)
 {
+       BigBuf_free(); BigBuf_Clear();
+       
        Dbprintf("Skipping first %d sample pairs, Skipping %d triggers.\n", samplesToSkip, triggersToSkip);
        bool trigger_cnt;
+
        LED_D_ON();
        // Select correct configs
        FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
@@ -39,9 +42,6 @@ void HfSnoop(int samplesToSkip, int triggersToSkip)
        SetAdcMuxFor(GPIO_MUXSEL_HIPKD);
        FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_SNOOP);
        SpinDelay(100);
-
-       BigBuf_free();
-       BigBuf_Clear();
        
        AT91C_BASE_SSC->SSC_RFMR = SSC_FRAME_MODE_BITS_IN_WORD(16); // Setting Frame Mode For better performance on high speed data transfer.
 
@@ -54,6 +54,7 @@ void HfSnoop(int samplesToSkip, int triggersToSkip)
                        r = MAX(r & 0xff, r >> 8); 
                        if (r >= 240) 
                        {
+                               
                                if (++trigger_cnt > triggersToSkip) {
                                break;
                        } 
@@ -64,9 +65,9 @@ void HfSnoop(int samplesToSkip, int triggersToSkip)
        if(!BUTTON_PRESS()) {
                int waitcount = samplesToSkip; // lets wait 40000 ticks of pck0
                while(waitcount != 0) {
-                       if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_RXRDY)) {
-                               waitcount--;
-                       }
+                       
+                       if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_RXRDY))
+                               --waitcount;
                }
                optimizedSnoop();
                Dbprintf("Trigger kicked! Value: %d, Dumping Samples Hispeed now.", r);