i.MX Processors中的主题 Off-Chip Trace i.MX6UL

Off-Chip Trace i.MX6UL

guillaume17 — Wed, 11 Apr 2018 12:49:21 GMT

Hi,

I'm looking for information or documents that tell me how to use the trace feature on i.MX6UL.

I saw that there was an Embedded Trace Macrocell (ETM) and Embedded Trace Buffer (ETB). In this case, it is necessary to read with the JTAG the buffer (ETB).

I would like in my case to make code coverage. I think the best solution is to use the trace port unit. However, I can not find the port to use and the pins.

Is it possible to recover the traces with for example the LAUTERBACH Off-Chip Trace Solution probe ?
Is the trace port available and if so where can I find the pins?

Thanks for your help

Cordially

Re: Off-Chip Trace

Yuri — Thu, 12 Apr 2018 07:39:20 GMT

Hello,

Use section 4.1.1 (Muxing Options) of the i.MX 6UL Reference Manual (Rev. 1,
04/2016) for “ARM_PLATFORM” instance, signals EVENTx, TRACEx, mux-ed with

LCD signals.

https://www.nxp.com/docs/en/reference-manual/IMX6ULRM.pdf

Have a great day,
Yuri

-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------

Re: Off-Chip Trace i.MX6UL

Yuri — Mon, 09 Jul 2018 09:19:39 GMT

Hello,

Appears, the LCD IF can not be used as TRACE IF. The TRACE IF might be used by SoC

team for internal test only. Currently, it uses the JTAG IF to connect to Lauterbach Trace32

on our EVK board.

Regards,

Yuri.