xthexder comments on Infallible Code

[–] xthexder@l.sw0.com 6 points 1 year ago* (3 children)

GPIOs are usually controlled by a single bit of a register anyway. Most likely you need to do something like:

// Set high
PORTB |= 1 << PINB5;
// Set low
PORTB &= ~(1 << PINB5);

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[–] Croquette@sh.itjust.works 2 points 1 year ago (2 children)

I am a lazy dev (not really, clients always want fast code), so I use the provided HAL libraries 99.9% of the time.

But I have seen code where someone would write something like

gpio_write(PIN_X, true)

and it always stood out to me.

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[–] JackbyDev@programming.dev 1 point 1 year ago (1 child)

Define on as true or something? Or maybe that's more confusing. I'm not a C dev so I'm not gonna pretend to understand idiomatic microcontroller code lol.

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[–] Croquette@sh.itjust.works 1 point 1 year ago

Sometimes, people do that. But using 0/1 is explicit enough since you can refer to a line as '1' or '0' for high/low on the hardware as well

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