How to talk to GPIO pins in binary form, LPC824?

joren_joly — Tue, 01 Oct 2019 10:17:50 GMT

Hello,

I was wondering how to do the following: I'm using an LPC824 and I want to write to gpio_1 and to gpio_15 on the same time, what i can do is just use the Chip_GPIO_SetPinstate function and this works, but i would love to do this just binary.

So instead of: Chip_GPIO_SetPinState(LPC_GPIO_PORT,0,15,true);

Chip_GPIO_SetPinState(LPC_GPIO_PORT,0,1,true);

something like: *LPC_GPIO_PORT->B[0] = 0b1000000000000010;

But this seems to fail, but i cant figure out why...

Thanks in advance!

Re: How to talk to GPIO pins in binary form, LPC824?

Sabina_Bruce — Thu, 03 Oct 2019 20:07:22 GMT

Hello Joren,

Can you try to do the hex value for the binary for example LPC_GPIO_PORT->B[0] |= 0b8002;. Check to see if this results different.

Also instead of just using an equal sign, make sure you use |= or & ~(...) depending if you want to turn on or off certain bits so you do not modify any other configurations.

Let me know your results

Sabina

LPC MicrocontrollersのトピックHow to talk to GPIO pins in binary form, LPC824?

How to talk to GPIO pins in binary form, LPC824?

Re: How to talk to GPIO pins in binary form, LPC824?