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arm evaluator e7t hangs when executing exemple progs/tests


hi,
i'm using the eCos 2.0b1 and the prebuilt ecoscentric arm tools on a win host with cygwin (ecoscentric ecos cd).
i built the ecos library using the e7t template and the default package configuration. no errors.
i compiled and linked the twothreads example program just as described in the user-guide.
i can download it without problems but the board seems to hang when the first task is being resumed. i get the following output :
...
(gdb) target remote com1
(gdb) load
Loading section .rom_vectors,size 0x40 lma 0x10000
Loading section .text, size 0xff9c lma 0x10040
Loading section .rodata, size 0x39c lma 0x1ffdc
Loading section .data, size 0x364 lma 0x20378
Start address 0x10040, load size 67292
Transfer rate: 23405 bits/sec, 304 bytes/write.
(gdb) cont
continuing.
Entering twothreads' cyg_user_start() function
Beginning execution; thread data is 0
Beginning execution; thread data is 1
the program doen't get past this point and the board isn't responding anymore. i can interrupt debugging by pressing ctrl + c after a while but need to reset the board to reestablish communicatoin with the board.
any suggestions where to start searching for the problem ?
btw: the hello world program and a thread test of the kernel tests show the same problem. the semaphore and mutex tests pass, though.
thanks for your help
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