import sys, time
from SerialPort_linux import *
-# serial device to communicate with
-DEVICE="/dev/ttyUSB0"
# baudrate used for initialization
INIT_BAUDRATE=9600
# baudrate used for communication with the internal bootloader after init
# contains the last received checksum from a READ, WRITE or CHECKSUM command
last_checksum = 0
+class FlashSequence(object):
+ def __init__(self, address, data):
+ self.address = address
+ self.data = data
+
def sendByte(byte):
tty.write(chr(byte))
last_checksum = recvByte()
last_checksum |= (recvByte() << 8)
-def cmdREAD(address, size):
+def bootromREAD(address, size):
# send READ command
sendByte(0x01)
if (recvByte() != 0xF1):
recvChecksum()
return data
-def cmdWRITE(address, size, data):
+def bootromWRITE(address, size, data):
# send WRITE command
sendByte(0x01)
if (recvByte() != 0xF1):
recvChecksum()
# TODO: test this function!
-def cmdCALL(address):
+def bootromCALL(address):
# send CALL command
sendByte(0x01)
if (recvByte() != 0xF1):
#return recvByte()
# TODO: test this function!
-def cmdCHECKSUM():
+def bootromCHECKSUM():
# call CHECKSUM command
sendByte(0x01)
if (recvByte() != 0xF1):
# get checksum
recvChecksum()
-def cmdBAUDRATE(baudrate):
+def bootromBAUDRATE(baudrate):
# send BAUDRATE command
sendByte(0x01)
if (recvByte() != 0xF1):
if (recvByte() != 0x18):
raise Exception
-
def pkernWRITE(address, size, data):
# send WRITE command
sendByte(0x13)
if (recvByte() != 0x28):
raise Exception
-
-class FlashSequence(object):
- def __init__(self, address, data):
- self.address = address
- self.data = data
-
def readMHXFile(filename): # desired mhx filename
fp = open(filename, "r")
retval = [] # returns a list of FlashSequence objects
fp.close()
return retval
-
-# check command line arguments
-if len(sys.argv) != 3:
- print "Usage: " + sys.argv[0] + " [pkernel mhx-file] [target mhx-file]"
- sys.exit(1)
-
-# read in data from mhx-files before starting
-try:
- bootloaderseqs = readMHXFile(sys.argv[1])
- pkernelseqs = readMHXFile(sys.argv[2])
-except IOError as error:
- print sys.argv[0] + ": Error - couldn't open file " + error.filename + "!"
- sys.exit(1)
-
-print "Initializing serial port..."
-tty = SerialPort(DEVICE, 100, INIT_BAUDRATE)
-
-print "Please press RESET on your board..."
-
-while True:
- tty.write('V')
- tty.flush()
- try:
- if tty.read() == 'F':
- break
- except SerialPortException:
- # timeout happened, who cares ;-)
- pass
-
-print "OK, trying to set baudrate..."
-# set baudrate
-cmdBAUDRATE(BOOTLOADER_BAUDRATE)
-time.sleep(0.1) # just to get sure that the bootloader is really running in new baudrate mode!
-del tty
-tty = SerialPort(DEVICE, 100, BOOTLOADER_BAUDRATE)
-
-print "Transfering pkernel program to IRAM",
-# let the fun begin!
-for seq in bootloaderseqs:
- if(seq.address <= 0x40000):
- addr = seq.address
- else:
- continue
- #print "RAMing", len(seq.data), "bytes at address", hex(addr)
- cmdWRITE(addr, len(seq.data), seq.data)
- tty.flush()
- sys.stdout.write(".")
- sys.stdout.flush()
-print
-
-# execute our pkernel finally and set pkernel conform baudrate
-cmdCALL(0x30000)
-time.sleep(0.5) # just to get sure that the pkernel is really running!
-del tty
-pkernelmode = True
-tty = SerialPort(DEVICE, None, KERNEL_BAUDRATE)
-
-print "Performing ChipErase..."
-pkernCHIPERASE()
-print "Chip erasing done."
-
-print "Flashing",
-for seq in pkernelseqs:
- # 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)
- tty.flush()
- sys.stdout.write(".")
- sys.stdout.flush()
-print
-print "Flashing done."
-
-sendByte(0x97) # exit and restart
-print "Program was started. Have fun!"
+def usage(execfile):
+ print "Usage: " + execfile + " <target mhx-file> [-d DEVICE]"
+
+def main(argv=None):
+ # check command line arguments
+ if argv is None:
+ argv = sys.argv
+
+ if len(argv) == 2 and (argv[1] == "-v" or argv[1] == "--version"):
+ print "Version: %VERSION%"
+ return 0
+
+ if len(argv) != 2 and len(argv) != 4:
+ usage(argv[0])
+ return 1
+
+ # standard serial device to communicate with
+ DEVICE="/dev/ttyUSB0"
+
+ # overrule standard device if provided with -d
+ if len(argv) == 4:
+ if argv[2] == "-d":
+ DEVICE = argv[3]
+ else:
+ usage(argv[0])
+ return 1
+
+ # read in data from mhx-files before starting
+ try:
+ try:
+ bootloaderseqs = readMHXFile("pkernel/pkernel.mhx")
+ except IOError as error1:
+ bootloaderseqs = readMHXFile("%PREFIX%/share/frprog/pkernel.mhx")
+ pkernelseqs = readMHXFile(argv[1])
+ except IOError as error:
+ print argv[0] + ": Error - couldn't open file " + error.filename + "!"
+ return 1
+
+ print "Initializing serial port..."
+ global tty
+ tty = SerialPort(DEVICE, 100, INIT_BAUDRATE)
+
+ print "Please press RESET on your board..."
+
+ while True:
+ tty.write('V')
+ tty.flush()
+ try:
+ if tty.read() == 'F':
+ break
+ except SerialPortException:
+ # timeout happened, who cares ;-)
+ pass
+
+ starttime = time.time() # save time at this point for evaluating the duration at the end
+
+ print "OK, trying to set baudrate..."
+ # set baudrate
+ try:
+ bootromBAUDRATE(BOOTLOADER_BAUDRATE)
+ except SerialPortException:
+ print "timeout exception: try again ->"
+ bootromBAUDRATE(BOOTLOADER_BAUDRATE)
+ time.sleep(0.1) # just to get sure that the bootloader is really running in new baudrate mode!
+ del tty
+ tty = SerialPort(DEVICE, 100, BOOTLOADER_BAUDRATE)
+
+ print "Transfering pkernel program to IRAM",
+ # let the fun begin!
+ for seq in bootloaderseqs:
+ if(seq.address <= 0x40000):
+ addr = seq.address
+ else:
+ continue
+ #print "RAMing", len(seq.data), "bytes at address", hex(addr)
+ bootromWRITE(addr, len(seq.data), seq.data)
+ tty.flush()
+ sys.stdout.write(".")
+ sys.stdout.flush()
+ print
+
+ # execute our pkernel finally and set pkernel conform baudrate
+ bootromCALL(0x30000)
+ time.sleep(0.1) # just to get sure that the pkernel is really running!
+ del tty
+ tty = SerialPort(DEVICE, None, KERNEL_BAUDRATE)
+
+ print "Performing ChipErase..."
+ pkernCHIPERASE()
+
+ print "Flashing",
+ for seq in pkernelseqs:
+ # 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)
+ tty.flush()
+ sys.stdout.write(".")
+ sys.stdout.flush()
+ print
+
+ duration = time.time() - starttime
+ print "Procedure complete, took", round(duration, 2), "seconds."
+
+ sendByte(0x97) # exit and restart
+ print "Program was started. Have fun!"
+
+
+if __name__ == '__main__':
+ sys.exit(main())
projects / pyfrprog.git / blobdiff