LPC54628 Writing directly to registers

aswinprabhu — Fri, 27 Sep 2019 06:33:35 GMT

Hello,

I'm trying to write a sample code to drive an LED using the output pin of LPC54628 using uVision 5.28. Saw some examples in SDK 2.7.0 (gpio_led). However, I prefer to write to registers directly instead of using pin_mux files.

#include "LPC54628.h"
int main(void){
IOCON_PIO29 = 0x01;
while(1){
}
}

I tried writing to IOCON register just to see whether the general idea/syntax is ok or not. It throws an error stating 'identifier "IOCON_PIO029" is undefined'.

Can someone tell which files am I missing?

Thanks in advance!

Re: LPC54628 Writing directly to registers

Alice_Yang — Sat, 28 Sep 2019 03:29:20 GMT

Hello Aswin Prabhu ,

Where you get SDK v2.7 ? From I know the latest version now is V2.6.x.

And in which file you find the Macro of IOCON_PIO29 ? If you don't want to use SDK, you need define it

by yourself. Recommend you refer to SDK demo.

And please download SDK package from: https://mcuxpresso.nxp.com/en/select

Have a great day,
TIC

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