IWR6843: Pin multiplex mode reading and programming

Girish Vaidya

Part Number: IWR6843
Other Parts Discussed in Thread: MMWAVE-SDK

Hi,

From the datasheet, I see that the pins could be configured in several different modes. Is there a way to read the mode in which a specific pin is operating through the TI provided firmware.

Specifically, I am working with the LRPD firmware from TI. I am customising it to meet my requirements. I would like to read the pin modes for pins K13 and P8 and configure them in GPIO modes. In case of K13, this will be mode0(as GPIO_26) or mode 1 (as GPIO_2) and in case of P8, this will be mode 1 (as GPIO_38).

Related query: What is the different between mode 0 and mode 1 for K13. Both will configure it as GPIO.

Is there any sample code snippet which does something similar for any of the pins?

Regards,

Girish

5 days ago

0 Saransh Gautam 4 days ago

TI__Intellectual 1210 points

Hi Girish,

We are looking into your query. Please allow us some time to respond.

Thanks,
Saransh

0 Pedrhom Nafisi 4 days ago in reply to Saransh Gautam

TI__Mastermind 24787 points

Hello Girish,

You can find pinmux code and other code relevant to pin operations within the MMWAVE-SDK. Lines of code involving pinmuxing can be found within the out of box demo and GPIO driver tests.

You will see that the balls for GPIO_0 - GPIO_2 will all have a second GPIO allocated to it. For the purposes of GPIO, they can be treated the same.

Best Regards,

Pedrhom

0 Girish Vaidya 3 days ago in reply to Pedrhom Nafisi

Prodigy 60 points

Thanks Pedrhom for the quick response. This is helpful.

Best Regards,

Girish

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IWR6843: Pin multiplex mode reading and programming