From: Bernhard Urban Date: Mon, 14 Dec 2009 08:57:31 +0000 (+0100) Subject: moved kerlen.py X-Git-Tag: v0.1~22 X-Git-Url: http://wien.tomnetworks.com/gitweb/?p=pyfrprog.git;a=commitdiff_plain;h=184927b95c1a20e5e50394c473a09432ecd9f665 moved kerlen.py --- diff --git a/kernel.py b/kernel.py new file mode 100755 index 0000000..8bf955b --- /dev/null +++ b/kernel.py @@ -0,0 +1,144 @@ +#!/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=38400 + +def recvByte(): + i = tty.read() + return ord(i) + +def sendByte(byte): + time.sleep(0.005) # just to get sure, wait 5ms + 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 + print "Chip erasing done." + +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): + print "address:", hex(address), "size:", size + # 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() + + +for seq in flashseqs: + print "Flashing", len(seq.data), "bytes at address", hex(seq.address) + pkernWRITE(seq.address, len(seq.data), seq.data) + +""" +sendByte(0x99) #exit and wait +print "Reset your board now to run code from Flash" +""" + +sendByte(0x97) #exit and restart diff --git a/pkernel/SerialPort_linux.py b/pkernel/SerialPort_linux.py deleted file mode 120000 index 88212d9..0000000 --- a/pkernel/SerialPort_linux.py +++ /dev/null @@ -1 +0,0 @@ -../SerialPort_linux.py \ No newline at end of file diff --git a/pkernel/kernel.py b/pkernel/kernel.py deleted file mode 100755 index 8bf955b..0000000 --- a/pkernel/kernel.py +++ /dev/null @@ -1,144 +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=38400 - -def recvByte(): - i = tty.read() - return ord(i) - -def sendByte(byte): - time.sleep(0.005) # just to get sure, wait 5ms - 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 - print "Chip erasing done." - -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): - print "address:", hex(address), "size:", size - # 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() - - -for seq in flashseqs: - print "Flashing", len(seq.data), "bytes at address", hex(seq.address) - pkernWRITE(seq.address, len(seq.data), seq.data) - -""" -sendByte(0x99) #exit and wait -print "Reset your board now to run code from Flash" -""" - -sendByte(0x97) #exit and restart