X-Git-Url: http://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/c89274cc60bf433cbf1091d9a6ca0b813ea9b224..5d01f50ae1be5c7de81cc089d60d3bdbf80dc738:/armsrc/appmain.c

diff --git a/armsrc/appmain.c b/armsrc/appmain.c
index b5e7d7ea..38afd85d 100644
--- a/armsrc/appmain.c
+++ b/armsrc/appmain.c
@@ -298,6 +298,36 @@ void SendVersion(void)
 	uint32_t compressed_data_section_size = common_area.arg1;
 	cmd_send(CMD_ACK, *(AT91C_DBGU_CIDR), text_and_rodata_section_size + compressed_data_section_size, 0, VersionString, strlen(VersionString));
 }
+
+// measure the USB Speed by sending SpeedTestBufferSize bytes to client and measuring the elapsed time.
+// Note: this mimics GetFromBigbuf(), i.e. we have the overhead of the UsbCommand structure included.
+void printUSBSpeed(void) 
+{
+	Dbprintf("USB Speed:");
+	Dbprintf("  Sending USB packets to client...");
+
+	#define USB_SPEED_TEST_MIN_TIME	1500	// in milliseconds
+	uint8_t *test_data = BigBuf_get_addr();
+	uint32_t end_time;
+
+	uint32_t start_time = end_time = GetTickCount();
+	uint32_t bytes_transferred = 0;
+	
+	LED_B_ON();
+	while(end_time < start_time + USB_SPEED_TEST_MIN_TIME) {
+		cmd_send(CMD_DOWNLOADED_RAW_ADC_SAMPLES_125K, 0, USB_CMD_DATA_SIZE, 0, test_data, USB_CMD_DATA_SIZE);
+		end_time = GetTickCount();
+		bytes_transferred += USB_CMD_DATA_SIZE;
+	}
+	LED_B_OFF();
+
+	Dbprintf("  Time elapsed:      %dms", end_time - start_time);
+	Dbprintf("  Bytes transferred: %d", bytes_transferred);
+	Dbprintf("  USB Transfer Speed PM3 -> Client = %d Bytes/s", 
+		1000 * bytes_transferred / (end_time - start_time));
+
+}
+	
 /**
   * Prints runtime information about the PM3.
 **/
@@ -306,10 +336,13 @@ void SendStatus(void)
 	BigBuf_print_status();
 	Fpga_print_status();
 	printConfig(); //LF Sampling config
+	printUSBSpeed();
 	Dbprintf("Various");
 	Dbprintf("  MF_DBGLEVEL......%d", MF_DBGLEVEL);
 	Dbprintf("  ToSendMax........%d",ToSendMax);
 	Dbprintf("  ToSendBit........%d",ToSendBit);
+
+	cmd_send(CMD_ACK,1,0,0,0,0);
 }
 
 #if defined(WITH_ISO14443a_StandAlone) || defined(WITH_LF)