X-Git-Url: http://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/e938f7101179641c9478e9c914bc1bb3ee171570..00848e096b408a43786ea283d4e77d32189994b9:/fpga/min_max_tracker.v

diff --git a/fpga/min_max_tracker.v b/fpga/min_max_tracker.v
index 8abd40fb..c47cfd3d 100644
--- a/fpga/min_max_tracker.v
+++ b/fpga/min_max_tracker.v
@@ -25,7 +25,7 @@ module min_max_tracker(input clk, input [7:0] adc_d, input [7:0] threshold,
 	always @(posedge clk)
 	begin
 		case (state)
-		0:
+		0: // initialize
 			begin
 				if (cur_max_val >= ({1'b0, adc_d} + threshold))
 					state <= 2;
@@ -36,7 +36,7 @@ module min_max_tracker(input clk, input [7:0] adc_d, input [7:0] threshold,
 				else if (adc_d <= cur_min_val)
 					cur_min_val <= adc_d;					
 			end
-		1:
+		1: // high phase
 			begin
 				if (cur_max_val <= adc_d)
 					cur_max_val <= adc_d;
@@ -46,7 +46,7 @@ module min_max_tracker(input clk, input [7:0] adc_d, input [7:0] threshold,
 					max_val <= cur_max_val;
 				end
 			end
-		2:
+		2: // low phase
 			begin
 				if (adc_d <= cur_min_val)
 					cur_min_val <= adc_d;