I am just getting started with my LM3S3748 ev kit. I followed all the instruction to setup up the eclipse + code sourcery toolchain, but I ran into some problems.

The demo application compiles fine.

Downloading the code to the board generates the following messages:
Info: openocd.c:92 main(): Open On-Chip Debugger (2007-08-17 11:00 CEST)
Info: target.c:232 target_init_handler(): executing reset script 'program.script'
Info: configuration.c:50 configuration_output_handler(): requesting target halt...
Info: configuration.c:50 configuration_output_handler(): waiting for target halted...
Info: configuration.c:50 configuration_output_handler(): target halted
Warning: stellaris.c:379 stellaris_read_part_info(): stellaris flash only tested for LM3S811 series
Info: configuration.c:50 configuration_output_handler(): flash 'stellaris' found at 0x00000000
Info: configuration.c:50 configuration_output_handler(): #0: stellaris at 0x00000000, size 0x00020000, buswidth 0, chipwidth 0
Warning: stellaris.c:379 stellaris_read_part_info(): stellaris flash only tested for LM3S811 series
Info: configuration.c:50 configuration_output_handler():
Info: configuration.c:50 configuration_output_handler(): LMI Stellaris information: Chip is class 3 Unknown part vA.0
Info: configuration.c:50 configuration_output_handler(): did1: 0x1049400d, arch: 0x1049400d, eproc: ARMV7M, ramsize:64k, flashsize: 128k
Info: configuration.c:50 configuration_output_handler(): master clock(estimated): 22500kHz, rcc is 0x78e3ad1
Info: configuration.c:50 configuration_output_handler(): pagesize: 1024, lockbits: 64 0xffffffff, pages in lock region: 2
Info: configuration.c:50 configuration_output_handler():
Info: configuration.c:50 configuration_output_handler(): sector number(s) invalid
Warning: target.c:562 target_alloc_working_area(): not enough working area available
Warning: stellaris.c:686 stellaris_write_block(): Algorithm flash write 1024 words to 0x0, 20724 remaining
Warning: stellaris.c:686 stellaris_write_block(): Algorithm flash write 1024 words to 0x1000, 19700 remaining
Warning: stellaris.c:686 stellaris_write_block(): Algorithm flash write 1024 words to 0x2000, 18676 remaining
Warning: stellaris.c:686 stellaris_write_block(): Algorithm flash write 1024 words to 0x3000, 17652 remaining
Warning: stellaris.c:686 stellaris_write_block(): Algorithm flash write 1024 words to 0x4000, 16628 remaining
Warning: stellaris.c:686 stellaris_write_block(): Algorithm flash write 1024 words to 0x5000, 15604 remaining
Warning: stellaris.c:686 stellaris_write_block(): Algorithm flash write 1024 words to 0x6000, 14580 remaining
Warning: stellaris.c:686 stellaris_write_block(): Algorithm flash write 1024 words to 0x7000, 13556 remaining
Warning: stellaris.c:686 stellaris_write_block(): Algorithm flash write 1024 words to 0x8000, 12532 remaining
Warning: stellaris.c:686 stellaris_write_block(): Algorithm flash write 1024 words to 0x9000, 11508 remaining
Warning: stellaris.c:686 stellaris_write_block(): Algorithm flash write 1024 words to 0xa000, 10484 remaining
Warning: stellaris.c:686 stellaris_write_block(): Algorithm flash write 1024 words to 0xb000, 9460 remaining
Warning: stellaris.c:686 stellaris_write_block(): Algorithm flash write 1024 words to 0xc000, 8436 remaining
Warning: stellaris.c:686 stellaris_write_block(): Algorithm flash write 1024 words to 0xd000, 7412 remaining
Warning: stellaris.c:686 stellaris_write_block(): Algorithm flash write 1024 words to 0xe000, 6388 remaining
Warning: stellaris.c:686 stellaris_write_block(): Algorithm flash write 1024 words to 0xf000, 5364 remaining
Warning: stellaris.c:686 stellaris_write_block(): Algorithm flash write 1024 words to 0x10000, 4340 remaining
Warning: stellaris.c:686 stellaris_write_block(): Algorithm flash write 1024 words to 0x11000, 3316 remaining
Warning: stellaris.c:686 stellaris_write_block(): Algorithm flash write 1024 words to 0x12000, 2292 remaining
Warning: stellaris.c:686 stellaris_write_block(): Algorithm flash write 1024 words to 0x13000, 1268 remaining
Warning: stellaris.c:686 stellaris_write_block(): Algorithm flash write 244 words to 0x14000, 244 remaining
Info: configuration.c:50 configuration_output_handler(): wrote 82896 byte from file ./RTOSDemo/RTOSDemo.bin to flash bank 0 at offset 0x00000000 in 13s 356000us (6.061180 kb/s)

The debug server starts fine, but I get this error when I try to launch the demo in a debugging session.

An internal error occurred during: "Launching RTOSDemo".
java.lang.NullPointerException

Any help is greatly appreciated.

Thanks,
Marc

I found 2 problems with eclipse configuration in the FreeRTOS Demo workspace. First, I had to configure the debug settings with the full path to arm-none-eabi-gdb.exe even though it was in my path. This was the cause of the NullPointerException.

Second, openocd_ftdi is configured to start listening to port 3333 but gdb is configured to connect to port 10000. I changed gdb to 3333 and was able to start a debugging session.

However, I cannot step, hit breakpoints, or really do anything with the debugger. I am seeing errors like these from openocd:

Info: server.c:67 add_connection(): accepted 'gdb' connection from 0
Error: cortex_swjdp.c:224 swjdp_transaction_endcheck(): SWJ-DP STICKY ERROR
Error: cortex_swjdp.c:238 swjdp_transaction_endcheck(): dcb_dhcsr 0x30003, nvic_shcsr 0x20000, nvic_cfsr 0x10000, nvic_bfar 0xe000edf8
Error: cortex_swjdp.c:224 swjdp_transaction_endcheck(): SWJ-DP STICKY ERROR
Error: cortex_swjdp.c:238 swjdp_transaction_endcheck(): dcb_dhcsr 0x30003, nvic_shcsr 0x20000, nvic_cfsr 0x10000, nvic_bfar 0xe000edf8

Thanks,
Marc

Hello Marc
Have you find a solution for this problem in the last two years?
I have exactly the same problem with CodeSourceryG++ 4.4-104 and a custom board with LM3S9B90.

Any help would be very much appreciated.

Kind Regards,
cee