TMS570LS1227: XDS110 DEBUG PROBE and UNIFLASH

zend

Part Number: TMS570LS1227
Other Parts Discussed in Thread: UNIFLASH

Hello,

I need to connect to CPU that is onboard by JTAG, using XDS110. But I have no success, because initial settings of some JTAG pins are wrong.

Is it possible somehow reset initial setting of specified JTAG pin? I can do this using J-Link, but J-Link can't read/write some areas of CPU.

Thanks

over 6 years ago

0 Miro over 6 years ago

TI__Mastermind 21425 points

Hello,
Could you clarify what do you mean by " because initial settings of some JTAG pins are wrong"?

Regards,
Miro

0 zend over 6 years ago in reply to Miro

Prodigy 130 points

Non-zero state of JTAG pin on the start, the result - no connection

0 Miro over 6 years ago in reply to zend

TI__Mastermind 21425 points

Hello,
Referring to original question: e2e.ti.com/.../724417
I understood that you are using Launchpad and Standalone XDS110 and that connection is fine after installing new drivers.

Are you trying to connect to the same Launchpad or to custom board? I still don't understand which pin is non-zero state and needs reset.

Best regards,
Miro

0 zend over 6 years ago in reply to Miro

Prodigy 130 points

When I set CPU to Launchpad there is no any problem to read it via inbuild programmer or XDS110.
The problem is to read CPU onboard.

Can you just say if there any way to set initial JTAG pin state to 0 in XDS110 or not? If it is, please tell me how to do this using UNIFLASH.

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TMS570LS1227: XDS110 DEBUG PROBE and UNIFLASH