X-Git-Url: http://cvs.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/90a8b82fb4ffc8f25038bb3ed10082cf913d50bb..d5810937bdf7fd5aab2629c58740eecac1ac3b7c:/armsrc/lfsampling.c

diff --git a/armsrc/lfsampling.c b/armsrc/lfsampling.c
index 120c0801..662ebf24 100644
--- a/armsrc/lfsampling.c
+++ b/armsrc/lfsampling.c
@@ -119,8 +119,7 @@ void LFSetupFPGAForADC(int divisor, bool lf_field)
  * @param silent - is true, now outputs are made. If false, dbprints the status
  * @return the number of bits occupied by the samples.
  */
-
-uint32_t DoAcquisition(uint8_t decimation, uint32_t bits_per_sample, bool averaging, int trigger_threshold,bool silent)
+uint32_t DoAcquisition(uint8_t decimation, uint32_t bits_per_sample, bool averaging, int trigger_threshold, bool silent)
 {
 	//.
 	uint8_t *dest = BigBuf_get_addr();
@@ -151,8 +150,12 @@ uint32_t DoAcquisition(uint8_t decimation, uint32_t bits_per_sample, bool averag
 		if (AT91C_BASE_SSC->SSC_SR & AT91C_SSC_RXRDY) {
 			sample = (uint8_t)AT91C_BASE_SSC->SSC_RHR;
 			LED_D_OFF();
-			if (trigger_threshold > 0 && sample < trigger_threshold)
+			// threshold either high or low values 128 = center 0.  if trigger = 178 
+			if ((trigger_threshold > 0) && (sample < (trigger_threshold+128)) && (sample > (128-trigger_threshold))) // 
 				continue;
+		
+			//if (trigger_threshold > 0 && sample < trigger_threshold) // 
+				//continue;
 
 			trigger_threshold = 0;
 			sample_total_numbers++;