[Tinyos-help] could not open port: (5, 'CreateFile', 'Access is denied.')

[abensong]

I'm using cygwin to communicate with my motes.  How do I find out what is 
using my COM port?  I tried restarting my computer several times and that did 
not work.


>===== Original Message From Matthew J Whelan <whelanmj at clarkson.edu> =====
><FONT face="Default Sans Serif,Verdana,Arial,Helvetica,sans-serif" 
size=2><DIV>Angelina,</DIV><DIV> </DIV><DIV>You are correct that the port 
cannot be opened because some program has claimed access to it.  A quick and 
easy way to regain access for programming would be to restart your computer.  
Otherwise, you must find out what is using the COM port and cause that program 
to release it.  Out of curiousity, are you using LabVIEW to communicate with 
your motes???  If so, make sure that you include the subvi that closes the COM 
port in your application.  I suppose that goes for any software you are using 
to communicate with the motes 
though.</DIV><DIV> </DIV><DIV>Regards,</DIV><DIV>Matt<BR></DIV><FONT 
color=#990099>-----tinyos-help-bounces at Millennium.Berkeley.EDU wrote: 
-----<BR><BR></FONT><blockquote style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; 
MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">To: 
tinyos-help at Millennium.Berkeley.EDU<BR>From: abensong 
<abensong at utk.edu><BR>Sent by: 
tinyos-help-bounces at Millennium.Berkeley.EDU<BR>Date: 06/15/2006 
09:41AM<BR>Subject: [Tinyos-help] could not open port: (5, 
'CreateFile',	'Access is denied.')<BR><BR><FONT face="Default 
Monospace,Courier New,Courier,monospace" size=2  >When trying to install a 
program on my TelosB mote, I get the following error: <BR>could not open port: 
(5, 'CreateFile', 'Access is denied.') I know that this <BR>means the com port 
is busy, but how do I free it up. The mote currently has a <BR>program on it 
that I think is using the port, but I am unable to erase that <BR>program. Any 
help would be greatly appreciated.<BR><BR>Thanks,<BR>Angelina<BR><BR>The 
entire error message:<BR><BR>$ make telosb install<BR>mkdir -p 
build/telosb<BR>   compiling TelosADC2C to a telosb binary<BR>ncc -o 
build/telosb/main.exe -O -Wall -Wshadow -DDEF_TOS_AM_GROUP=0x7d 
<BR>-Wnesc-al<BR>l -target=telosb -fnesc-cfile=build/telosb/app.c -board= 
-I%T/lib/Deluge 
<BR>-Wl,--s<BR>ection-start=.text=0x4800,--defsym=_reset_vector__=0x4000 
<BR>-DIDENT_PROGRAM_NAME=\<BR>"TelosADC2C\" -DIDENT_USER_ID=\"SERF501\" 
-DIDENT_HOSTNAME=\"DATAPACK\" <BR>-DIDENT_<BR>USER_HASH=0x7e5bf602L 
-DIDENT_UNIX_TIME=0x44908becL 
<BR>-DIDENT_UID_HASH=0xed0b3b54L<BR>-mdisable-hwmul 
-I/opt/tinyos-1.x/tos/lib/CC2420Radio TelosADC2C.nc -lm<BR>   compiled 
TelosADC2C to build/telosb/main.exe<BR>           8684 bytes in ROM<BR>       
    285 bytes in RAM<BR>msp430-objcopy --output-target=ihex 
build/telosb/main.exe <BR>build/telosb/main.ihex<BR><BR>   writing TOS 
image<BR>cp build/telosb/main.ihex build/telosb/main.ihex.out<BR>   found mote 
on COM6 (using bsl,auto)<BR>   installing telosb bootloader using 
bsl<BR>msp430-bsl --telosb -c 5 -r -e -I -p 
<BR>C:/PROGRA~1/UCB/cygwin/opt/tinyos-1.x/tos/l<BR>ib/Deluge/TOSBoot/build/tel
osb/main.ihex<BR>MSP430 Bootstrap Loader Version: 1.39-telos-7<BR><BR>An error 
occoured:<BR>could not open port: (5, 'CreateFile', 'Access is 
denied.')<BR>make: *** [program_bl] Error 
1<BR><BR>_______________________________________________<BR>Tinyos-help 
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