TDA4VM: How to operate WKUP_GPIO?

Tao Xie

Intellectual 435 points

Part Number: TDA4VM
Other Parts Discussed in Thread: AWR2243,

Hello, experts

My SDK vision is ti-processor-sdk-rtos-j721e-evm-08_01_00_11.

I can run demo "main_led_blink" successfully.

But when i change "GPIO_LED0_PIN_NUM" from "6" to "12", I can't change the level of GPIO.

Through the schematic diagram, I found that WKUP_GPIO0_ 12 is used as MCU_UART0_TXD. Can it be used as ordinary GPIO? And how？

Regards,

Tao Xie

over 3 years ago

0 Parth Nagpal over 3 years ago

TI__Mastermind 42135 points

Hi,

Tao Xie said:
Can it be used as ordinary GPIO? And how？

You can use it as ordinary GPIO by pinmuxing D19 to mode 7 after BOARD_init is done. But you won't be able to get any logs in this case.
Any specific reason to use GPIO 12?

Regards,
Parth

0 Tao Xie over 3 years ago in reply to Parth Nagpal

Intellectual 435 points

Hi, Parth

Thank you very much for your reply.

We want to connect AWR2243 to TDA4VM. So we need two gpios to act as reset pin and interrupt pin.

We want to use WKUP_GPIO0_12 and WKUP_GPIO0_13.

How to "pinmuxing D19 to mode 7"?

I see that WKUP_GPIO0_12 corresponds to G29 on the schematic diagram.

Regards,

Tao Xie

+1 Parth Nagpal over 3 years ago in reply to Tao Xie

TI__Mastermind 42135 points

Hi Tao,

Tao Xie said:
I see that WKUP_GPIO0_12 corresponds to G29 on the schematic diagram.

Sorry, my bad, I was checking J7200 datasheet. It is G29.

You can do the pinmuxing by using BOARD_pinmuxsetReg API at <PDK_INSTALL_PATH>\ti\board\src\j721e_evm\board_pinmux.c

Regards,
Parth

0 Tao Xie over 3 years ago in reply to Parth Nagpal

Intellectual 435 points

Hi, Parth

Thank you very much!

I have solved this problem.

Regards,

Tao Xie

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TDA4VM: How to operate WKUP_GPIO?