Merge pull request #89 from Gregwar/bootloader-option

Adding BOOTLOADER option to support Robotis bootloader different ROM

1 files changed, 94 insertions, 0 deletions

diff --git a/support/scripts/robotis-loader.py b/support/scripts/robotis-loader.py
new file mode 100755
index 0000000..95d4e71
--- /dev/null
+++ b/support/scripts/robotis-loader.py
@@ -0,0 +1,94 @@
+#!/usr/bin/python
+
+# This script sends a program on a robotis board (OpenCM9.04 or CM900)
+# using the robotis bootloader (used in OpenCM IDE)
+# 
+# Usage:
+# python robotis-loader.py <serial port> <binary>
+#
+# Example:
+# python robotis-loader.py /dev/ttyACM0 firmware.bin
+#
+# https://github.com/Gregwar/robotis-loader
+
+import serial, sys, os, time
+
+print('~~ Robotis loader ~~')
+print('')
+
+# Reading command line
+if len(sys.argv) != 3:
+    exit('! Usage: robotis-loader.py <serial-port> <binary>')
+pgm, port, binary = sys.argv
+
+# Helper to prints a progress bar
+def progressBar(percent, precision=65):
+    threshold=precision*percent/100.0
+    sys.stdout.write('[ ')
+    for x in xrange(0, precision):
+        if x < threshold: sys.stdout.write('#')
+        else: sys.stdout.write(' ')
+    sys.stdout.write(' ] ')
+    sys.stdout.flush()
+
+# Opening the firmware file
+try:
+    stat = os.stat(binary)
+    size = stat.st_size
+    firmware = file(binary, 'rb')
+    print('* Opening %s, size=%d' % (binary, size))
+except:
+    exit('! Unable to open file %s' % binary)
+
+# Opening serial port
+try:
+    s = serial.Serial(port, baudrate=115200)
+except:
+    exit('! Unable to open serial port %s' % port)
+
+print('* Resetting the board')
+s.setRTS(True)
+s.setDTR(False)
+time.sleep(0.1)
+s.setRTS(False)
+s.write('CM9X')
+s.close()
+time.sleep(1.0);
+
+print('* Connecting...')
+s = serial.Serial(port, baudrate=115200)
+s.write('AT&LD')
+print('* Download signal transmitted, waiting...')
+
+# Entering bootloader sequence
+while True:
+    line = s.readline().strip()
+    if line.endswith('Ready..'):
+        print('* Board ready, sending data')
+        cs = 0
+        pos = 0
+        while True:
+            c = firmware.read(2048)
+            if len(c):
+                pos += len(c)
+                sys.stdout.write("\r")
+                progressBar(100*float(pos)/float(size))
+                s.write(c)
+                for k in range(0,len(c)):
+                    cs = (cs+ord(c[k]))%256
+            else:
+                break
+        print('')
+        s.setDTR(True)
+        print('* Checksum: %d' % (cs))
+        s.write(chr(cs))
+        print('* Firmware was sent')
+    else:
+        if line == 'Success..':
+            print('* Success, running the code')
+            print('')
+            s.write('AT&RST')
+            s.close()
+            exit()
+        else:
+            print('Board -> '+line)