It is possible to run code on a Stellaris device that causes the device to lose JTAG communication. The two most common causes are:
If you accidentally do either of these things, you can restore communication with your target device by running the Debug Port Unlock utility in LMFlash Programmer as shown below. Select the appropriate product class for your device. If you don't know the class for your device, you can find it by reading the Device Identification 0 (DID0) register at address 0x400F.E000. Then click on the "Unlock" button.
On Tempest- and Firestorm-class devices, the MAC address is erased by the Debug Port Unlock utility, so be sure to write down the number before running the utility.
In reply to gkonzak:
Thank you very much.
The best regards.
There is the red circle on XDS 100 v2ARM emulator and it is connected with red cable (10 pin).
There is white triangle on MDL –ADA2 adapter from RDK-IDM-L35 – Stellaris with red cable(10pin).
and on the from RDK-IDM-L35 – Stellaris board there is the same white triangle
Can I connect red circle from xds100 v2 (Blackhawk) with white triangle from froit m RDK-IDM-L35 – Stellaris?
Is it the +3,3 V?
In reply to Andrzej Maciejewski:
The triangle indicates pin 1, and it does usually have 3.3V on it.
I know it . But if is it the same white triangle in Texas Instrument (Austin) and red circle in Blackhawk ( New york)?
The best regards.
I have never used Blackhawk. A TI person could answer that.
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