accessing bit in LPC2148

Pragati S. OP (Company: services india) #1537603 
Hello all;

I am using LPC2148.I have write code like this.e.g.
     switch ( s )
      {
      case 0x00:
          IO0SET |= (1<<1);
          IO0CLR |= (1<<2);
          IO0SET |= (1<<3);
          IO0SET |= (1<<4);
          break; }
I want to assign port pin directly through bit(like used in 8051 sbit)
Have you any suggestion?

I am using SCARM compilar.
Reply Quote Edit Move Thread sperren Slow mode Anmeldepflicht aktivieren Anpinnen Delete topic Thread mit anderem zusammenführen Report Thanks
Martin T. Moderator #1538863 
Pragati Shah wrote:
> I am using LPC2148.I have write code like this.e.g.
>      switch ( s )
>       {
>       case 0x00:
>           IO0SET |= (1<<1);
>           IO0CLR |= (1<<2);
>           IO0SET |= (1<<3);
>           IO0SET |= (1<<4);
>           break; }
> I want to assign port pin directly through bit(like used in 8051 sbit)
> Have you any suggestion?
As far as I know there are no instuctions in this controller-family that 
can be compared to MC51's sbit for an IO-Pin. The GPIO-Module is 
accessed through 32bit registers. But you should re-read the manual: |= 
is not needed. For "higher speed" enable FIO and use the FIO registers 
instead of "legacy" IO

> I am using SCARM compilar.
Whatever this is.
Reply Quote Edit Delete Report Thanks
Watch this topic

Reply

A question of your own? This thread is over 16 years old. Ask it in a thread of its own – more people read along there, and it gets answered more often and sooner.

Start a new thread

A fix, an addition or feedback on this thread? Then reply here.

Formatting
  • [c]C-Code[/c]
  • [code]code in other languages, ASCII drawings[/code]
  • [math]formula (LaTeX syntax)[/math]
  • [[Title]] – link to an article
  • Link to another post: right-click its post ID (#8078628), copy the address, paste it into the text

More about formatting

Post long source code as an attachment, not in the text.

Your name and e-mail address

Already registered? Log in

Not shown to anyone. We send you a link; your post appears once you confirm it there.

By submitting you create a free account and accept the terms of use.