嵌入式系统实验ADS编程.docx

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1、#define GPFCON (*(volatile unsigned *)0x56000050)#define GPFDAT (*(volatile unsigned *)0x56000054)#define GPFUP (volatile unsigned *)0x56000058)#define GPBCON (*(volatile unsigned *)0x56000010)#define GPBDAT (*(volatile unsigned *)0x56000014)#define GPBUP (*(volatile unsigned *)0x56000018)/*延时函数*/vo

2、id Delay(unsigned int x) (unsigned int i,j,k;for(i=0;i=x;i+)(for(j=0;j0xff;j+)(for(k=0;k0xff;k4-+)int LedMain()GPFUP &二 Ox87;/IO 上拉使能GPFCON &=0xD57F;输出有效，首位清0GPFCON |=0xl540;输出有效，末位置1GPFDAT |= 0x78;清零GPBUP &= 0x3DF;/IO 上拉使能GPBCON &= 0x3FF3FF;输入有效，KEY3 有效GPBDAT |= 0x020;清零if(GPBDAT|0x7DF=0X7FF)判断GPB5

3、是否为1,假设是，正着亮；假设不是，反着亮。GPFDAT |= 0x78;GPFDAT &= 0xF7;Delay(400);GPFDAT |= 0x78;GPFDAT &二 OxEF; Delay(400);GPFDAT |= 0x78;GPFDAT &= OxDF;Delay(400);GPFDAT |= 0x78;GPFDAT &= OxBF; DeIay(400);)elseGPFDAT |= 0x78;GPFDAT &= OxBF;Delay(400);GPFDAT |= 0x78;GPFDAT &= OxDF;Delay(400);GPFDAT |= 0x78;GPFDAT &二 OxEF;Delay(400);GPFDAT |= 0x78;GPFDAT &= 0xF7;Delay(400);)return(O);)