请教PIC12C508A单个端口方向的设置

-85 · 2010-9-27 21:54

PIC16F系列的端口RA1方向设置为如TRISA1=0；那PIC12C508A的GP1怎么设置呢，用TRIS1还是TRISGP1,还是不能单个设置，求教。。在线等。。

2万 · 2010-9-28 09:16

一般不要这么搞，通用性太差了。

可以：TRISA&=0b11111101;

2万 · 2010-9-28 09:16

一般不要这么搞，通用性太差了。

可以：TRISA&=0b11111101;

1万 · 2010-9-28 09:59

12系列的没有专门的 TRIS 寄存器，但编译器也可以认得 TRISx = X 这样的，但应该不支持位操作，你可查一下响应的头文件看看里面有没有定义。

1万 · 2010-9-28 09:59

建议12C 系列还是不要用 C了。

只看该作者 · 2010-9-28 10:44

头文件有定义的，查一下

只看该作者 · 2013-10-29 12:22

头文件没有怎么办

只看该作者 · 2013-10-29 13:35

我用的是picc 9.81,当我编译pic12f508a时候发现头文件配置无TRIS，那怎么办呢？
#ifndef _HTC_H_
#warning Header file pic12c508a.h included directly. Use #include <htc.h> instead.
#endif

/* header file for the MICROCHIP PIC microcontroller
*  12C508A
*/

#ifndef __PIC12C508A_H
#define __PIC12C508A_H

//
// Configuration mask definitions
//

// Config Register: CONFIG
#define CONFIG             0x0FFF
// Oscillator selection bits
// external RC oscillator
#define OSC_ExtRC          0xFFFF
// LP oscillator
#define OSC_LP             0xFFFC
// XT oscillator
#define OSC_XT             0xFFFD
// internal RC oscillator
#define OSC_IntRC          0xFFFE
// Watchdog timer enable bit
// WDT enabled
#define WDT_ON             0xFFFF
// WDT disabled
#define WDT_OFF             0xFFFB
// Code protection bit
// Code protection off
#define CP_OFF             0xFFFF
// Code protection on
#define CP_ON             0xFFF7
// MCLR enable bit
// MCLR pin enabled
#define MCLRE_ON          0xFFFF
// MCLR tied to VDD, (Internally)
#define MCLRE_OFF          0xFFEF

//
// Special function register definitions
//

volatile control unsigned char          OPTION             @ 0x000;

// Register: INDF
volatile       unsigned char          INDF             @ 0x000;
// bit and bitfield definitions

// Register: TMR0
volatile       unsigned char          TMR0             @ 0x001;
// bit and bitfield definitions

// Register: PCL
volatile       unsigned char          PCL                @ 0x002;
// bit and bitfield definitions

// Register: STATUS
volatile       unsigned char          STATUS             @ 0x003;
// bit and bitfield definitions
volatile bit CARRY             @ ((unsigned)&STATUS*8)+0;
volatile bit DC                @ ((unsigned)&STATUS*8)+1;
volatile bit ZERO             @ ((unsigned)&STATUS*8)+2;
volatile bit nPD                @ ((unsigned)&STATUS*8)+3;
volatile bit nTO                @ ((unsigned)&STATUS*8)+4;
volatile bit PA0                @ ((unsigned)&STATUS*8)+5;
volatile bit GPWUF             @ ((unsigned)&STATUS*8)+7;
#ifndef _LIB_BUILD
volatile union {
struct {
      unsigned C                : 1;
      unsigned DC                : 1;
      unsigned Z                : 1;
      unsigned nPD                : 1;
      unsigned nTO                : 1;
      unsigned PA0                : 1;
      unsigned                      : 1;
      unsigned GPWUF             : 1;
};
} STATUSbits @ 0x003;
#endif

// Register: FSR
volatile       unsigned char          FSR                @ 0x004;
// bit and bitfield definitions

// Register: OSCCAL
volatile       unsigned char          OSCCAL             @ 0x005;
// bit and bitfield definitions
volatile bit CAL0             @ ((unsigned)&OSCCAL*8)+2;
volatile bit CAL1             @ ((unsigned)&OSCCAL*8)+3;
volatile bit CAL2             @ ((unsigned)&OSCCAL*8)+4;
volatile bit CAL3             @ ((unsigned)&OSCCAL*8)+5;
volatile bit CAL4             @ ((unsigned)&OSCCAL*8)+6;
volatile bit CAL5             @ ((unsigned)&OSCCAL*8)+7;
volatile bit OSCSLW             @ ((unsigned)&OSCCAL*8)+2;
volatile bit OSCFST             @ ((unsigned)&OSCCAL*8)+3;
#ifndef _LIB_BUILD
volatile union {
struct {
      unsigned                      : 2;
      unsigned CAL                : 6;
};
struct {
      unsigned : 2;
      unsigned CAL0             : 1;
      unsigned CAL1             : 1;
      unsigned CAL2             : 1;
      unsigned CAL3             : 1;
      unsigned CAL4             : 1;
      unsigned CAL5             : 1;
};
struct {
      unsigned : 2;
      unsigned OSCSLW             : 1;
      unsigned OSCFST             : 1;
};
} OSCCALbits @ 0x005;
#endif

// Register: GPIO
volatile       unsigned char          GPIO             @ 0x006;
// bit and bitfield definitions
volatile bit GP0                @ ((unsigned)&GPIO*8)+0;
volatile bit GP1                @ ((unsigned)&GPIO*8)+1;
volatile bit GP2                @ ((unsigned)&GPIO*8)+2;
volatile bit GP3                @ ((unsigned)&GPIO*8)+3;
volatile bit GP4                @ ((unsigned)&GPIO*8)+4;
volatile bit GP5                @ ((unsigned)&GPIO*8)+5;
#ifndef _LIB_BUILD
volatile union {
struct {
      unsigned GP0                : 1;
      unsigned GP1                : 1;
      unsigned GP2                : 1;
      unsigned GP3                : 1;
      unsigned GP4                : 1;
      unsigned GP5                : 1;
};
} GPIObits @ 0x006;
#endif

#endif