UART0 ( DebugP_log() ) still working after commenting out the pinmux related stuff

Dazong Chen

Intellectual 400 points

Part Number: TMDS62LEVM
Other Parts Discussed in Thread: SYSCONFIG

Tool/software:

Hi,

I commented out the pinmux_init(), but still see the UART0 working without any gpio initialization.

DebugP_log("uart initialization 1\r\n");

I checked the map file and see no pinmux_init()

Wondering what's the reason behind this? I've also tried fully removed the Debug folder then rebuilt/POR the EVM but still get same result.

Thanks,

Dazong

7 months ago

0 Vaibhav Kumar 7 months ago

TI__Mastermind 47406 points

Hi,

Can you share a snippet of the following sections from your SysConfig file for the application that you are running?

Debug Log and UART

Regards,

Vaibhav

0 Dazong Chen 7 months ago in reply to Vaibhav Kumar

Intellectual 400 points

Hi Vaibhav,

I am not sure what following sections you are looking for, let me know if you need some other screen shots

0 Vaibhav Kumar 7 months ago in reply to Dazong Chen

TI__Mastermind 47406 points

Hi,

Thanks for your patience.

Dazong Chen said:
I am not sure what following sections you are looking for

I mentioned it here:

Vaibhav Kumar said:
Debug Log and UART

Can you send a screenshot of the Debug Log section, you already shared the UART one.

Regards,

Vaibhav

0 Dazong Chen 7 months ago in reply to Vaibhav Kumar

Intellectual 400 points

Hi Vaibhav,

Debug log is also in the screen shot like "GPIO LED Blink Test started". These are from DebugP_log() function. You can take a look at gpio_led_blink_am62lx-evm_a53ss0-0_nortos_gcc-aarch64, where uart0 also works after commenting out the pinmux_init(). I disabled the syscfg, and moved auto generate board config files to another folderf

Thanks,

Dazong

0 Dazong Chen 7 months ago in reply to Vaibhav Kumar

Intellectual 400 points

Hi Vaibhav,

Any updates on this?

Thanks,

Dazong

0 Mukul Bhatnagar 7 months ago in reply to Dazong Chen

TI__Guru* 84375 points

Hi Dazong

Looks like Vaibhav had to take some time off this week, I am going to reassign this thread to another team member. We will likely get back to you in the next day or two.

Regards

Mukul

+1 Tushar Thakur 7 months ago in reply to Mukul Bhatnagar

TI__Guru 50708 points

Hi Dazong,

The pinmux setting for UART peripheral is already done by the Pre-BL, this is the reason why you can see the UART logs still come up during execution even if the Pinmux initialization is commented out.

Regards,

Tushar

0 Dazong Chen 7 months ago in reply to Tushar Thakur

Intellectual 400 points

Thanks Tushar,

This confirms my assumption :)

Regards,

Dazong

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UART0 ( DebugP_log() ) still working after commenting out the pinmux related stuff