1 files changed, 70 insertions, 0 deletions
diff --git a/firmware/zpu/bin/uart_ihex_ram_loader.py b/firmware/zpu/bin/uart_ihex_ram_loader.py
new file mode 100755
index 000000000..c90fbe1d8
--- /dev/null
+++ b/firmware/zpu/bin/uart_ihex_ram_loader.py
@@ -0,0 +1,70 @@
+#!/usr/bin/python
+
+import serial
+from optparse import OptionParser
+import os, sys
+
+def main():
+	usage="%prog: [options] filename"
+	parser = OptionParser(usage=usage)
+	parser.add_option("-t", "--tty", type="string", default="/dev/ttyUSB0",
+                     help="select serial port [default=%default]")
+	parser.add_option("-b", "--baudrate", type=int, default=115200,
+										 help="set baudrate [default=%default]")
+
+	(options, args) = parser.parse_args()
+	if len(args) != 1:
+		parser.print_help()
+		raise SystemExit(1)
+
+	filename = args[0]
+	f = open(filename, "r")
+
+	#all we have to do is load the IHX file and attempt to spit it out to the serial port.
+	if(os.path.exists(options.tty) is False):
+		sys.stderr.write("No serial port found at %s\n" % options.tty)
+		raise SystemExit(1)
+	
+	try:
+		ser = serial.Serial(port=options.tty, timeout=1, baudrate=options.baudrate, bytesize=8, parity=serial.PARITY_NONE, stopbits=1, rtscts=0, xonxoff=0)
+	except serial.SerialException:
+		sys.stderr.write("Unable to open serial port\n")
+		raise SystemExit(1)
+
+	ser.open()
+
+#test to see if a valid USRP2+ in RAM load mode is connected
+
+	ser.write("WOOOOO\n");
+	reply = ser.readline()
+	if("NOK" not in reply):
+		sys.stderr.write("Valid USRP2+ not connected or no response received\n")
+		raise SystemExit(1)
+	else:
+		print("USRP2+ found.")
+
+	for line in f:
+		ser.write(line.rstrip() + '\n')
+		reply = ser.readline()
+		if("NOK" in reply): #blocks to wait for response
+			print("Received NOK reply from USRP2+")
+			raise SystemExit(1)
+		elif("OK" not in reply):
+			print("Received invalid reply!")
+			raise SystemExit(1)
+#		else:
+#			print("OK received")
+
+	print "USRP2+ RAM programmed.\nLoading program."
+
+	#at this point it should have sent the end line of the file, which starts the program!
+	#we'll just act like a dumb terminal now
+#	ser.timeout = 0
+#	try:
+#		while 1:
+#			print ser.readline()
+#	except KeyboardInterrupt:
+#		raise SystemExit(0)
+
+if __name__ == '__main__':
+	main()