Lpc2000

Thanks! 
I already found a header file from KEIL:
http://www.keil.com/dd/docs/arm/philips/lpc22xx.h

#define IOPIN2         (*((volatile unsigned long *) 0xE0028020))
#define IOSET2         (*((volatile unsigned long *) 0xE0028024))
#define IODIR2         (*((volatile unsigned long *) 0xE0028028))
#define IOCLR2         (*((volatile unsigned long *) 0xE002802C))
#define IOPIN3         (*((volatile unsigned long *) 0xE0028030))
#define IOSET3         (*((volatile unsigned long *) 0xE0028034))
#define IODIR3         (*((volatile unsigned long *) 0xE0028038))
#define IOCLR3         (*((volatile unsigned long *) 0xE002803C))

It's same as you. But I can't find any information about them on 
philips's datasheet and user manual. It really be there and can be 
access?

Regards

--Janeslee--

--- In lpc2000@yahoogroups.com, "Bill Knight" <BillK@t...> wrote:
> This works for me.
> 
> Regards
> -Bill Knight
> theARMPatch
> 
> ///////////////////////////////////////////////////////////////////
////////////
> // General Purpose Input/Output Registers (GPIO)
> typedef struct
> 
>   REG32 in;                             // GPIO Value Register
>   REG32 set;                            // GPIO Output Set Register
>   REG32 dir;                            // GPIO Direction Register
>   REG32 clr;                            // GPIO Output Clear 
Register
> } gpioRegs_t;
> 
> #define GPIO0           ((gpioRegs_t *)0xE0028000)
> #define GPIO1           ((gpioRegs_t *)0xE0028010)
> #define GPIO2           ((gpioRegs_t *)0xE0028020)
> #define GPIO3           ((gpioRegs_t *)0xE0028030)
> 
> // GPIO Registers
> #define IO0PIN          GPIO0->in       /* P0 Pin Value Register */
> #define IO0SET          GPIO0->set      /* P0 Pin Output Set 
Register */
> #define IO0DIR          GPIO0->dir      /* P0 Pin Direction 
Register */
> #define IO0CLR          GPIO0->clr      /* P0 Pin Output Clear 
Register */
> #define IO1PIN          GPIO1->in       /* P1 Pin Value Register */
> #define IO1SET          GPIO1->set      /* P1 Pin Output Set 
Register */
> #define IO1DIR          GPIO1->dir      /* P1 Pin Direction 
Register */
> #define IO1CLR          GPIO1->clr      /* P1 Pin Output Clear 
Register */
> #define IO2PIN          GPIO2->in       /* P2 Pin Value Register */
> #define IO2SET          GPIO2->set      /* P2 Pin Output Set 
Register */
> #define IO2DIR          GPIO2->dir      /* P2 Pin Direction 
Register */
> #define IO2CLR          GPIO2->clr      /* P2 Pin Output Clear 
Register */
> #define IO3PIN          GPIO3->in       /* P3 Pin Value Register */
> #define IO3SET          GPIO3->set      /* P3 Pin Output Set 
Register */
> #define IO3DIR          GPIO3->dir      /* P3 Pin Direction 
Register */
> #define IO3CLR          GPIO3->clr      /* P3 Pin Output Clear 
Register */
> 
> 
> 
> 
> On Fri, 07 May 2004 15:16:11 -0000, janesleecn wrote:
> 
> Hi, Dear all
> 
> I'm using a LPC2214 in my project. and have released P2.31:8 as a 
> GPIO but P2.7:0 as an external memory data bus. Strangely, I can't 
> control the behavior of P2.31:8 because I can't find PORT2's GPIO 
> register(IOPIN2,IODIR2..). How can I do this?
> 
> Thanks for your help!