topic NXP MCU Boot Utility issue on IMXRT1060 EVK in i.MX RT Crossover MCUs

NXP MCU Boot Utility issue on IMXRT1060 EVK

amitmehta — Thu, 01 Aug 2019 09:48:08 GMT

I am having an imxrt1060 EVK board and used NXP MCU Boot Utility to set JTAG interface to JTAG mode from SWD, but now I am not able to connect to board in normal mode using JTAG/SWD mode and also not able to set DAP_SEL bit to 0 for SWD mode

Re: NXP MCU Boot Utility issue on IMXRT1060 EVK

jingpan — Fri, 02 Aug 2019 09:23:22 GMT

Hi Amit,

What you write is in eFuse. It is an OTP memory. Only can write from 1 to 0.

The on board CMSIS-DAP firmware doesn't support JTAG. So, you have to use external debugger tool.

Regards,

Jing

Re: NXP MCU Boot Utility issue on IMXRT1060 EVK

amitmehta — Fri, 02 Aug 2019 10:29:34 GMT

Hi Jing,

I have written 1 into DAP_SJC_SWD_SEL bit to configure JTAG interface into JTAG mode, after that I tried to connect using 20 pins onboard SEGGER header available on EVK, but I was not able to connect even after setting IAR Embedded workbench JTAG interface into from SWD to JTAG mode. even tried using J-Flash tool.

I am only able to communicate to the board using the NXP MCU Boot Utility.

Re: NXP MCU Boot Utility issue on IMXRT1060 EVK

jingpan — Tue, 06 Aug 2019 02:23:44 GMT

Hi,

have you disconnect J47, j48, j49, j50?

Regards,

Jing

Re: NXP MCU Boot Utility issue on IMXRT1060 EVK

amitmehta — Tue, 06 Aug 2019 04:22:24 GMT

Hi,

Yes, Earlier before setting fuse bit I used to use the 20 pin segger for debugging by removing J47 and J48.

and even tried removing J47, j48, j49, j50 after setting fuse bit but no luck.

Re: NXP MCU Boot Utility issue on IMXRT1060 EVK

jingpan — Wed, 07 Aug 2019 06:24:55 GMT

Hi,

1. Can you read out those eFuse data and paste here?

2. Can you use j-link Commander and try to connect cortex-M7 core?

Re: NXP MCU Boot Utility issue on IMXRT1060 EVK

amitmehta — Wed, 07 Aug 2019 08:52:31 GMT

Hi,

1. Below is a screenshot of eFuse data

2. J-Link Commander Screenshot

Re: NXP MCU Boot Utility issue on IMXRT1060 EVK

jingpan — Fri, 09 Aug 2019 06:48:19 GMT

Hi,

Please try to boot from eFuse.

Regards,

Jing