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 after init
+REAL_BAUDRATE=38400
+
# contains the last received checksum from a READ, WRITE or CHECKSUM command
last_checksum = 0
def recvChecksum():
global last_checksum
- # get checksum
last_checksum = recvByte()
last_checksum |= (recvByte() << 8)
# get checksum
recvChecksum()
+# TODO: test this function!
+def cmdCALL(address):
+ # send CALL command
+ sendByte(0x01)
+ if (recvByte() != 0xF1):
+ raise Exception
+ sendByte(0x04)
+ if (recvByte() != 0x84):
+ raise Exception
+ # tell desired address
+ sendDWord(address)
+ # wait for return parameter - not needed here!
+ #return recvByte()
+
+# TODO: test this function!
+def cmdCHECKSUM():
+ # call CHECKSUM command
+ sendByte(0x01)
+ if (recvByte() != 0xF1):
+ raise Exception
+ sendByte(0x05)
+ if (recvByte() != 0x84):
+ raise Exception
+ # get checksum
+ recvChecksum()
+
def cmdBAUDRATE(baudrate):
global last_checksum
sendByte((baudrate >> 24) & 0xFF)
print "Initializing serial port..."
-tty = SerialPort("/dev/ttyUSB0", 100, 9600)
+tty = SerialPort(DEVICE, 100, INIT_BAUDRATE)
print "Please press RESET on your 1337 board..."
print "OK, trying to set baudrate..."
# set baudrate
-cmdBAUDRATE(38400)
-tty = SerialPort("/dev/ttyUSB0", 100, 38400)
+cmdBAUDRATE(REAL_BAUDRATE)
+tty = SerialPort(DEVICE, 100, REAL_BAUDRATE)
"""
print
sendByte(0x01)
print recvByte()
sys.exit(0)
"""
+"""
+# execute (existing) program in ram
+cmdCALL(0x00033ffc)
+sys.exit(0)
+"""
+
+# read something from the IRAM
+#print cmdREAD(0x00030000, 32)
+#data = []
+#for i in range(0, 32):
+# data.append(i)
+#cmdWRITE(0x00030000, 32, data)
+
+"""
# write something to the begin of the IRAM
data_wr = []
checksum = 0
print "Reading from the IRAM again..."
data_re = cmdREAD(0x00030000, len(data_wr))
print "Received data:", data_re, "Checksum:", last_checksum
+"""
+
+"""
+# see whats in the iram at the moment
+data_wr = []
+print "Reading from the IRAM..."
+data_re = cmdREAD(0x00030000, 0x10000-4)
+print "Received data:", data_re, "Checksum:", last_checksum
+"""
+
+"""
+# see whats in the dram at the moment
+data_wr = []
+print "Reading from the DRAM..."
+data_re = cmdREAD(0x0002C000, 0x10000-0xC000-4)
+print "Received data:", data_re, "Checksum:", last_checksum
+"""
+
+"""
+# blank the iram
+data_wr = []
+for i in range(0, 0x10000-4):
+ value = 0
+ data_wr.append(value)
+
+print "Writing", data_wr, "to the IRAM..."
+cmdWRITE(0x00030000, len(data_wr), data_wr)
+print "Received Checksum:", last_checksum
+print
+"""
+
+"""
+# blank the dram
+data_wr = []
+for i in range(0, 0x10000-0xC000-4):
+ value = 0
+ data_wr.append(value)
+
+print "Writing", data_wr, "to the DRAM..."
+cmdWRITE(0x0002C000, len(data_wr), data_wr)
+print "Received Checksum:", last_checksum
+print
+"""
+
+
+"""
+S006000066756AB4
+S20E0F40009B000D4ECFF11601E0FFF6
+S214148000FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF67
+S804000000FB
+
+NOP = 0x9fa0
+"""
+# write some data in the iram and try to execute it
+# ATTENTION: before running this, run a program on the board (e.g. flashdemo).
+# the bytecode will be executed after copied into iram, however it won't stop
+# and executes the stuff after it in the iram. after a powerreset this can be
+# randomcrap and this could be very dangerous! so pay attention please
+data_wr =[0x9B,0x00,0x0D,0x4e,0xcf,0xf1,0x16,0x01,0xe0,0xff,0xf6,0x9f,0xa0,0x9f,0xa0,0x9f,0xa0,0x9f,0xa0,0xe0,
+ 0xcb,0x9f,0xa0,0x9f,0xa0,0x9f,0xa0,0x9f,0xa0,0x9f,0xa0,0x9f,0xa0,0x9f,0xa0,0x9f,0xa0,0x9f,0xa0,0x9f,
+ 0xa0,0x9f,0xa0,0x9f,0xa0,0x9f,0xa0,0x9f,0xa0,0x9f,0xa0,0x9f,0xa0,0x9f,0xa0,0x9f,0xa0]
+print "Writing", data_wr, "to the IRAM..."
+cmdWRITE(0x00030000, len(data_wr), data_wr)
+print "Received Checksum:", last_checksum
+print
+cmdCALL(0x00030000)