X-Git-Url: http://wien.tomnetworks.com/gitweb/?p=pyfrprog.git;a=blobdiff_plain;f=kernel.py;fp=kernel.py;h=0000000000000000000000000000000000000000;hp=f1ce9d406dc001055bb9bb8bffd8ab756a55e0e7;hb=b580c9fce4cc4e51d411e09eff79af6c17519600;hpb=66102daf335a37e5a9451416c3c7a77e53b18772 diff --git a/kernel.py b/kernel.py deleted file mode 100755 index f1ce9d4..0000000 --- a/kernel.py +++ /dev/null @@ -1,150 +0,0 @@ -#!/usr/bin/env python -import sys, time -from SerialPort_linux import * - -# serial device to communicate with -DEVICE="/dev/ttyUSB0" -# baudrate used for communication with pkernel -KERNEL_BAUDRATE=115200 - -def recvByte(): - i = tty.read() - return ord(i) - -def sendByte(byte): - tty.write(chr(byte)) - tty.flush() - -def sendWord(word): - sendByte(word & 0xFF) - sendByte((word >> 8) & 0xFF) - -def sendDWord(dword): - sendByte(dword & 0xFF) - sendByte((dword >> 8) & 0xFF) - sendByte((dword >> 16) & 0xFF) - sendByte((dword >> 24) & 0xFF) - -def pkernCHIPERASE(): - sendByte(0x15) - if (recvByte() != 0x45): - raise Exception - print "wait..." - if (recvByte() != 0x23): - raise Exception - -def pkernERASE(address, size): - sendByte(0x12) - if (recvByte() != 0x11): - raise Exception - sendDWord(address) - sendWord(size) - if (recvByte() != 0x18): - raise Exception - #print "Erasing done." - - -def pkernWRITE(address, size, data): - # send WRITE command - sendByte(0x13) - if (recvByte() != 0x37): - raise Exception - # tell desired address and size - sendDWord(address) - sendWord(size) - - # write binary stream of data - for i in range(0, size): - sendByte(data[i]) - - if (recvByte() != 0x28): - raise Exception - #print "Flashing done." - - -class FlashSequence(object): - def __init__(self, address, data): - self.address = address - self.data = data - -# list of all our address/data pairs to flash -flashseqs = [] - - -print "Initializing serial port..." -tty = SerialPort(DEVICE, None, KERNEL_BAUDRATE) - -# check command line arguments -if len(sys.argv) != 2: - print "Usage: " + sys.argv[0] + " [mhx-file]" - sys.exit(1) - -# read in data from mhx-file before starting -try: - fp = open(sys.argv[1], "r") -except IOError: - print sys.argv[0] + ": Error - couldn't open file " + sys.argv[1] + "!" - sys.exit(1) - -linecount = 0 -for line in fp: - linecount += 1 - # get rid of newline characters - line = line.strip() - - # we're only interested in S2 (data sequence with 3 address bytes) records by now - if line[0:2] == "S2": - byte_count = int(line[2:4], 16) - # just to get sure, check if byte count field is valid - if (len(line)-4) != (byte_count*2): - print sys.argv[0] + ": Warning - inavlid byte count field in " + \ - sys.argv[1] + ":" + str(linecount) + ", skipping line!" - continue - - # address and checksum bytes are not needed - byte_count -= 4 - address = int(line[4:10], 16) - datastr = line[10:10+byte_count*2] - - # convert data hex-byte-string to real byte data list - data = [] - for i in range(0, len(datastr)/2): - data.append(int(datastr[2*i:2*i+2], 16)) - - # add flash sequence to our list - flashseqs.append(FlashSequence(address, data)) - -#print "The following flash sequences have been read in:" -#for seq in flashseqs: -# print hex(seq.address) + ":", [hex(x) for x in seq.data] - - -# let the fun begin! -""" -for seq in flashseqs: - print "Erasing", len(seq.data), "bytes at address", hex(seq.address) - pkernERASE(seq.address, len(seq.data)) -""" -print "ChipErase..." -pkernCHIPERASE() -print "Chip erasing done." - - -print "Flashing", -for seq in flashseqs: - sys.stdout.write(".") - sys.stdout.flush() - # skip seqs only consisting of 0xffs - seqset = list(set(seq.data)) - if len(seqset) == 1 and seqset[0] == 0xff: - continue - #print "Flashing", len(seq.data), "bytes at address", hex(seq.address) - pkernWRITE(seq.address, len(seq.data), seq.data) -print - -""" -sendByte(0x99) #exit and wait -print "Reset your board now to run code from Flash" -""" - -sendByte(0x97) #exit and restart