topic Re: Layerscape JTAG port in Layerscape

Layerscape JTAG port

tom_derks — Tue, 16 Feb 2021 12:48:33 GMT

Hi,

When programming layerscape CPU with Code warrior programmer is native JTAG used or is the protocol SWD? I need to know wether JTAG TDI connection is required or not.

best regards,

Tom

Re: Layerscape JTAG port

ufedor — Tue, 16 Feb 2021 13:33:12 GMT

You wrote:
> wether JTAG TDI connection is required or not.
The request is not clear.
TDI is essential JTAG signal.

Re: Layerscape JTAG port

tom_derks — Tue, 16 Feb 2021 13:45:25 GMT

Does the codewarrior programmer for layerscape with 10-pin arm debug connector only support JTAG or also SWD?

Re: Layerscape JTAG port

ufedor — Tue, 16 Feb 2021 17:10:18 GMT

Which processor is in question?

Have you read the processor Design Checklist document?

Re: Layerscape JTAG port

tom_derks — Tue, 16 Feb 2021 17:27:20 GMT

It is for LS1043A CPU, i see nothing about SWD in checklist/reference manual so i guess it's not supported.

We will just implement the 10-pin JTAG connector.

Re: Layerscape JTAG port

ufedor — Tue, 16 Feb 2021 18:14:29 GMT

Correct.

Only JTAG functions of signals are used.