3 from SerialPort_linux import *
5 # serial device to communicate with
7 # baudrate used for communication with pkernel
10 def pkernWRITE(address, size, data):
13 if (recvByte() != 0xF1):
16 if (recvByte() != 0x83):
18 # tell desired address and size
21 # write binary stream of data
22 for i in range(0, size):
27 print "Initializing serial port..."
28 tty = SerialPort(DEVICE, 500, KERNEL_BAUDRATE)
30 # check command line arguments
31 if len(sys.argv) != 2:
32 print "Usage: " + sys.argv[0] + " [mhx-file]"
35 # read in data from mhx-file before starting
37 fp = open(sys.argv[1], "r")
39 print sys.argv[0] + ": Error - couldn't open file " + sys.argv[1] + "!"
45 # get rid of newline characters
48 # we're only interested in S2 (data sequence with 3 address bytes) records by now
50 byte_count = int(line[2:4], 16)
51 # just to get sure, check if byte count field is valid
52 if (len(line)-4) != (byte_count*2):
53 print sys.argv[0] + ": Warning - inavlid byte count field in " + \
54 sys.argv[1] + ":" + str(linecount) + ", skipping line!"
57 # address and checksum bytes are not needed
59 address = int(line[4:10], 16)
60 datastr = line[10:10+byte_count*2]
62 # convert data hex-byte-string to real byte data list
64 for i in range(0, len(datastr)/2):
65 data.append(int(datastr[2*i:2*i+2], 16))
67 # add flash sequence to our list
68 flashseqs.append(FlashSequence(address, data))
70 print "The following flash sequences have been read in:"
72 print hex(seq.address) + ":", seq.data
77 print "Flashing", len(seq.data), "bytes at address", hex(seq.address)
78 pkernWRITE(seq.address, len(seq.data), seq.data)
80 print "Reset your board now to run code from Flash"