LP-MSPM0L1306:Input pin high-low detection method

ryota.endo

Part Number: LP-MSPM0L1306
Other Parts Discussed in Thread: SYSCONFIG

You can check the high level of the input pin using DL_GPIO_readPins(GPIO_Regs* gpio, uint32_t pins),
What should I do when I want to check Low?
Also, with MPS430,
if ((P4IN & BIT0) == 1)~
I was able to express P4.0 as P4IN & BIT0 like this.
In MSPM0
For example, how can PA10 be expressed?

over 1 year ago

0 Johnson He over 1 year ago

TI__Mastermind 29386 points

Hi，

You can refer this examlpe:

Thanks!

Best Regards

Johnson

0 Keith Barkley over 1 year ago

Guru 42085 points

As the docs say, the function returns:

"BitwiseOR of DL_GPIO_PIN of pins that are currently high from the input selection."

So, if the bit DL_GPIO_PIN is low, the pin is low.

Sysconfig creates a magic define that maps your pin names to DL_GPIO_PIN.

0 ryota.endo over 1 year ago in reply to Johnson He

Intellectual 300 points

I referred to the sample program and asked the question.
without using "DL_GPIO_readPins",
I want to detect when any GPIO is Low.
for example
if(PA10 == 0){~
If you want the content as above,
The question is how should I express "PA10 == 0"?

0 ryota.endo over 1 year ago in reply to Keith Barkley

Intellectual 300 points

If you want to proceed with the program when it is Low,
if(DL_GPIO_PIN_10 == 0){~
Does this mean that I should express it as above?

+1 Johnson He over 1 year ago in reply to ryota.endo

TI__Mastermind 29386 points

Hi Ryota,

Try this one for PA10 low check:

if(!(GPIOA->DIN31_0 & DL_GPIO_PIN_10))
{
    // add come code here if PA10 keep Low
}

Thanks!

Best Regards

Johnson

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LP-MSPM0L1306:Input pin high-low detection method