Update README.md

1 files changed, 30 insertions, 1 deletions

diff --git a/README.md b/README.md
index 23a70a9..7903bba 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,33 @@
 clujtag-client
 ==============
 
-Client for JTAG programmer for AVR microcontrollers
+Client for AVR-based JTAG programmer: https://github.com/ClusterM/clujtag-avr
+
+It's based on Lib(X)SVF (http://www.clifford.at/libxsvf/) so you can use it to flash SVF or XSVF files. Use MinGW (www.mingw.org) to compile it for Windows if need. Linux users are welome too.
+
+How to use:
+
+Usage:
+clujtag [ -v ... ] -p portname { -s svf-file | -x xsvf-file | -c }
+* -p portname - use specified serial port for communication with programmer (COM*xx* for Windows and /dev/tty*xxx* for Linux)
+* -v, -vv, -vvv, -vvvv - verbose, more verbose and even more verbose
+* -s svf-file - play the specified SVF file
+* -x xsvf-file - play the specified XSVF file
+* -c - list devices in JTAG chain
+
+
+Examples:
+
+    >clujtag -p COM16 -c
+    Scanning JTAG chain...
+    Device found: idcode=0x170640dd, revision=0x1, part=0x7064, manufactor=0x06e
+
+
+    >clujtag -v -p /dev/ttyACM0 -s MMC1.svf
+    clujtag
+    Copyright (C) 2009  RIEGL Research ForschungsGmbH
+    Copyright (C) 2009  Clifford Wolf <clifford@clifford.at>
+    Copyright (C) 2014  Cluster <clusterrr@clusterrr.com>
+    Lib(X)SVF is free software licensed under the ISC license.
+    Playing SVF file `MMC1.svf'.
+    Done!