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jtaylor

Fresh Boarder 		Click here to see the profile of this user

2007/03/16 13:13

GDB and JTAG solutions

I have a LM3S811 dev kit. The CodeSourcery tools, including GDB, seem to work fine. However, my production board will not have a USB interface.

Has anyone had success with 3rd-party JTAG solutions interoperating with GDB?

The sticky point seems to be the host-side driver that translates the gdb protocol.

Thanks.

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LMI Eric

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2007/03/16 13:18

Re:GDB and JTAG solutions

You can actually use your '811 board to communicate with your production board. Take a look at the user's manual for details about the feature. When connected to another target, the MCU on the the '811 board is held in reset, and the debug signals are routed to the 20-pin JTAG header.

CodeSourcery GDB is currently the only tool vendor that uses the new Serial Wire Debug (SWD) interface, so there aren't any other options at the moment. One of the driving factors of the '811 board was providing a debug interface for customers using GDB.

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englere

Gold Boarder 		Click here to see the profile of this user

2007/04/04 15:35

Re:GDB and JTAG solutions

You should look at OpenOCD to be the interface between the device and gdb. That's an open driver to act as the middle man. But you need a compatible JTAG device. See the Sparkfun forum on OpenOCD and the OpenOCD Wiki.

CodeSourcery's gdb interface is closed and proprietary. If you can buy their tools I bet their support is good.

But if you prefer an open solution, then OpenOCD is it.

Eric E

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jtaylor

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2007/04/05 12:02

Re:GDB and JTAG solutions

I found OpenOCD already, but read that it wasn't quite ready for Stellaris. Have you any experience with OpenOCD on a Stellaris chip?

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LMI Eric

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2007/04/07 18:01

Re:GDB and JTAG solutions

You can find OpenOCD for Stellaris here:

http://www.siwawi.arubi.uni-kl.de/avr_projects/arm_projects/index_cortex.html#openocd_cm3

Post edited by: LMI Eric, at: 2007/04/07 18:02

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