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using jtag as debug console from test app

LPC2xxx

I need to create an automated test fixture for an LPC based widget. Normally this would be my test shell code running on a PC and my embedded test kernel on the target. The two would communicate with one of the '232 or other ports. This test fixture is automated and does not need debugger features such as breakpoints, trace, or an IDE.

In this case, only the Jtag interface is available to me - no other ports. Can I accomplish what I want (program, run, serial debug console) with just the Keil Jtag cable? Does it come with a driver/API like other Jtag cables or should I look elsewhere?

A full-blown debugger/IDE (uVision) will not be of use to me unless it can be controlled from my shell program easily. Even then the cost of the IDE tool may add too much cost to the test fixture.

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