LP-MSPM0L2228: How to set GPIO as output low

Edware Kuo

Prodigy 70 points

Part Number: LP-MSPM0L2228

Tool/software:

Hi sir,

I didn't find the API to configure GPIO pin as output low, could you help guide me how to do it?

Thanks,

Edware

6 months ago

0 Diego Abad Sajamin 6 months ago

TI__Genius 14762 points

Hi Edware,
To do this, you can use the DL_GPIO_clearPins API call. You can find an example of it in our SDK or in the DriverLib guide.

Best Regards,

Diego Abad

0 Edware Kuo 6 months ago in reply to Diego Abad Sajamin

Prodigy 70 points

Hi Diego,

I think DL_GPIO_clearPins() is just for NOT output, right? My concern is that if our HW tight one GPIO pin to pull-up resistor, how could I set the pin to low. Can DL_GPIO_clearPins() do it?

Thanks,

Edware

0 Diego Abad Sajamin 6 months ago in reply to Edware Kuo

TI__Genius 14762 points

Hi Edware,
When you set the Pin low, it will basically connected to VSS. So even if you put a pull-up resistor on it, as long as the I/O is used as an output, it will be low. For more information, please see the Userguide's Figure 9-1. Superset IO Slice.

Best Regards,

Diego Abad

Interface

Interface forum

LP-MSPM0L2228: How to set GPIO as output low