LPC824 Invert Input Signal to Output

[scruffmeister]

Using the LPC824 Is there an efficient way to take an input signal on a pin, invert it and route/output it on another pin without using an interrupt?

[xiangjun_rong]

Hi，

I have not good idea to invert a signal from a pad and output an inverted signal to another pad without interrupt for LPC824.

But the LPC804 has PLU, which enable you invert a signal from the PLU input pad and output the inverted signal to another PLU output pad.

This is LPC804 website:

https://www.nxp.com/products/processors-and-microcontrollers/arm-microcontrollers/general-purpose-mc...

Of course, you can use PINT module to generate interrupt, in the ISR, read the logic of input pin, and output the inverted  logic to another GPIO pad.

Hope it can help you

BR

XiangJun Rong