[Mspgcc-users] problem with mspgcc lib from msp430-jtag

[Eric Decker]

Hello,

I recently downloaded the tinyos 2.x XubunTOS live CD and installed it.
Which
uses the mspgcc tool chain.  I got jtag from the stanford repository.
(msp430tools-jtag-lib-tinyos)
and (msp430tools-python-tools-tinyos).

It installed okay and I built Blink (one of the tinyOS demo programs).  So
far
the only problem I've run into is when I try to run "msp430-jtag".  I get
the
following error:

cire-laptop (45): msp430-jtag
Traceback (most recent call last):
  File "/opt/msp430/bin/msp430-jtag", line 16, in <module>
    from msp430 import memory, jtag
  File "/opt/msp430/lib/python2.3/site-packages/msp430/jtag.py", line 58, in
<module>
    MSP430mspgcc = ctypes.cdll.MSP430mspgcc
  File "ctypes/__init__.py", line 415, in __getattr__
  File "ctypes/__init__.py", line 340, in __init__
OSError: MSP430mspgcc: cannot open shared object file: No such file or
directory
cire-laptop (46):


The question is how does python find libraries?  In particular how does the
line
"MSP430mspgcc = ctypes.cdll.MSP430mspgcc" into a shared object (library).

I've looked for any files in the /opt hierarchy and found the following:

/opt/msp430/lib/libMSP430mspgcc.a
/opt/msp430/lib/libMSP430mspgcc.so

I've set LD_LIBRARY_PATH to include /opt/msp430/lib and have run ldconfig.
But it still can't find the library.

The code from jtag.py is:

#1st try the ctypes implementation, if thats not available try to use the C
extension
try:
    import ctypes
except ImportError:
    try:
        import _parjtag
    except ImportError:
        raise ImportError("Can't find neither _parjtag nor ctypes. No JTAG
backend available.")
    else:
        backend = "_parjtag so/dll"
else:
    backend = "ctypes"

    STATUS_OK   = 0
    TRUE        = 1
    FALSE       = 0
    WRITE       = 0
    READ        = 1
    if sys.platform == 'win32':
        MSP430mspgcc = ctypes.windll.MSP430mspgcc
    else:
        MSP430mspgcc = ctypes.cdll.MSP430mspgcc
#       MSP430mspgcc = ctypes.cdll.LoadLibrary("MSP430mspgcc")

    MSP430_Initialize               = MSP430mspgcc.MSP430_Initialize
    MSP430_Initialize.argtypes      = [ctypes.c_char_p, ctypes.POINTER(
ctypes.c_long)]
    MSP430_Initialize.restype       = ctypes.c_int
    try:
        MSP430_Open                     = MSP430mspgcc.MSP430_Open