main.c

来自「ucos系统中键盘及LED驱动实验.」· C语言 代码 · 共 47 行

#include "../inc/lib.h"

//#include "..inc/Zlg7290.h"
#include "uhal/uhal.h"
#include "inc/iic.h"

#pragma import(__use_no_semihosting_swi)  // ensure no functions that use semihosting 
#define GPFCON		(*(volatile unsigned *)0x56000050)
#define GPFUP		(*(volatile unsigned *)0x56000058)


int main(void)
{  
    U8 key;
    unsigned char KeyBoard_Map[]={0,0,11,0,0,0,0,0,0,0,0
								,14,0,0,0,0,0,10,0,13,0
								,12,0,0,0,0,0,22,0,0,0
								,0,0,1,0,3,17,2,0,0,0
								,4,0,6,0,5,0,0,0,7,0
								,9,15,8,0,0,0,0,0,0,0
								,0,0,0
								}; //64,键值映射表
	ARMTargetInit();        // do target (uHAL based ARM system) initialisation //
  
    IIC_init();
    for(;;)
    {
    
      key=IIC_Read(0x70, 1);
      hudelay(10);
       if(key==0)
			continue;
		
		key=KeyBoard_Map[key];
				
		IIC_Write(0x70, 0x07, 0x60);
		IIC_Write(0x70, 0x08, key);
	 	
   
    }
}