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标题: PIC32头文件疑惑 [打印本页]

作者: liliuyang 时间: 2014-7-31 15:11
标题: PIC32头文件疑惑
本人是刚接触PIC的，现在的编译环境是MPLAB X IDE 和MPLAB XC32
typedef union {
struct {
   unsigned LATH0:1;
   unsigned LATH1:1;
   unsigned LATH2:1;
   unsigned LATH3:1;
   unsigned LATH4:1;
   unsigned LATH5:1;
   unsigned LATH6:1;
   unsigned LATH7:1;
   unsigned LATH8:1;
   unsigned LATH9:1;
   unsigned LATH10:1;
   unsigned LATH11:1;
   unsigned LATH12:1;
   unsigned LATH13:1;
   unsigned LATH14:1;
   unsigned LATH15:1;
};
struct {
   unsigned w:32;
};
} __LATHbits_t;
extern volatile __LATHbits_t LATHbits __asm__ ("LATH") __attribute__((section("sfrs")));
extern volatile unsigned int       LATHCLR __attribute__((section("sfrs")));
extern volatile unsigned int       LATHSET __attribute__((section("sfrs")));
extern volatile unsigned int       LATHINV __attribute__((section("sfrs")));
extern volatile unsigned int       ODCH __attribute__((section("sfrs")));
这个头文件有啥用？？？
#define _LATH_LATH0_POSITION                   0x00000000
#define _LATH_LATH0_MASK                      0x00000001
#define _LATH_LATH0_LENGTH                      0x00000001
这个是用来实现一位操作的吗？？
还有PIC32怎样实现像（TRI SAbits.TRI SA5=0;//设置RA5为输出）这样的一位操作？？
我自己试了好久也不成功，希望有大牛解救

作者: 还你一世界 时间: 2014-8-4 09:38
define的估计是一个初始化~酱油路过

作者: 张衍波 时间: 2014-8-7 15:31
不懂啊，，

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