From f23e056d950c72582ddb1d3d68ad5d012541afff Mon Sep 17 00:00:00 2001
From: "adam@algroup.co.uk"
 <adam@algroup.co.uk@ef4ab9da-24cd-11de-8aaa-f3a34680c41f>
Date: Fri, 3 Jul 2009 10:17:52 +0000
Subject: [PATCH] added 'buffclear' - when you absolutely positivley must clear
 every bit in the room

---
 armsrc/appmain.c   | 11 +++++++++++
 include/usb_cmd.h  |  1 +
 winsrc/command.cpp |  8 ++++++++
 winsrc/prox.h      |  1 +
 4 files changed, 21 insertions(+)

diff --git a/armsrc/appmain.c b/armsrc/appmain.c
index 18b8d64a..681bba99 100644
--- a/armsrc/appmain.c
+++ b/armsrc/appmain.c
@@ -27,6 +27,13 @@ BYTE ToSend[256];
 int ToSendMax;
 static int ToSendBit;
 
+
+void BufferClear(void)
+{
+	memset(BigBuf,0,sizeof(BigBuf));
+	DbpString("Buffer cleared");
+}
+
 void ToSendReset(void)
 {
 	ToSendMax = -1;
@@ -603,6 +610,10 @@ void UsbPacketReceived(BYTE *packet, int len)
 		case CMD_ACQUIRE_RAW_ADC_SAMPLES_ISO_15693:
 			AcquireRawAdcSamplesIso15693();
 			break;
+
+		case CMD_BUFF_CLEAR:
+			BufferClear();
+			break;
 
 		case CMD_READER_ISO_15693:
 			ReaderIso15693(c->ext1);
diff --git a/include/usb_cmd.h b/include/usb_cmd.h
index 655f194c..78b48425 100644
--- a/include/usb_cmd.h
+++ b/include/usb_cmd.h
@@ -33,6 +33,7 @@ typedef struct {
 #define CMD_DEBUG_PRINT_BYTES						0x0102
 #define CMD_LCD_RESET								0x0103
 #define CMD_LCD										0x0104
+#define CMD_BUFF_CLEAR							0x0105
 
 // For low-frequency tags
 #define CMD_ACQUIRE_RAW_BITS_TI_TYPE				0x0200
diff --git a/winsrc/command.cpp b/winsrc/command.cpp
index 8da91f52..8a7fd6fb 100644
--- a/winsrc/command.cpp
+++ b/winsrc/command.cpp
@@ -52,6 +52,13 @@ static void CmdReset(char *str)
 	SendCommand(&c, FALSE);
 }
 
+static void CmdBuffClear(char *str)
+{
+	UsbCommand c;
+	c.cmd = CMD_BUFF_CLEAR;
+	SendCommand(&c, FALSE);
+	CmdClearGraph(TRUE);
+}
 
 static void CmdQuit(char *str)
 {
@@ -2396,6 +2403,7 @@ static struct {
 	"autocorr",			CmdAutoCorr,1,		"<window length> -- Autocorrelation over window",
 	"bitsamples",		CmdBitsamples,0,	"    Get raw samples as bitstring",
 	"bitstream",		Cmdbitstream,1,		"[clock rate] -- Convert waveform into a bitstream",
+	"buffclear",		CmdBuffClear,0,		"    Clear sample buffer and graph window",
 	"dec",				CmdDec,1,		"    Decimate samples",
 	"detectclock",		Cmddetectclockrate,1, "    Detect clock rate",
 	"em410xsim",		CmdEM410xsim,1,		"<UID> -- Simulate EM410x tag",
diff --git a/winsrc/prox.h b/winsrc/prox.h
index 232aba1f..e93975de 100644
--- a/winsrc/prox.h
+++ b/winsrc/prox.h
@@ -22,6 +22,7 @@ extern int CommandFinished;
 extern int offline;
 
 // command.cpp
+static void CmdBuffClear(char *str);
 static void GetFromBigBuf(BYTE *dest, int bytes);
 static void CmdReset(char *str);
 static void CmdQuit(char *str);
-- 
2.39.2