利用dsp电机测速及详解
摘要
通过按键实现加速，减速，停止功能，利用中断测速，采用软件延时去抖动，具体实现方法看代码。
程序清单
#pragma CODE_SECTION(vect,"vect")
unsigned int *pmem=0;
#define IMR *(pmem+0x0000)
#define IFR *(pmem+0x0001)
#define PMST *(pmem+0x001d)
#define SWCR *(pmem+0x002b)
#define SWWSR *(pmem+0x0028)
#define CLKMD *(pmem+0x0058)
#define ST1 *(pmem+0x007)
#define PRD0 *(pmem+0x0025) /* timer0 period register */
#define TCR0 *(pmem+0x0026) /* timer0 control register */
#define uchar unsigned char
#define ulong unsigned long
#define uint unsigned int
uchar flag=0x0;
uchar flag1=0x0;
uint count=0x0;
uint count1=0x0;
uint k=0x0;
ioport unsigned portc001; //键盘地址
ioport unsigned port8003; //液晶屏CS1地址读指令
ioport unsigned port8004; //液晶屏CS1地址写指令
ioport unsigned port8005; //液晶屏CS1地址写数据
ioport unsigned port8000; //液晶屏CS2地址
ioport unsigned port8001; //液晶屏CS2地址
ioport unsigned port8002; //液晶屏CS2地址
#define cs1 port8003
#define cs1rd port8004
#define cs1wd port8005
#define cs2 port8000
#define cs2rd port8001
#define cs2wd port8002
ioport unsigned portc005; //直流电机地址
#define djcs portc005
static const uchar table4[]={
//;-- 0 -- ** 黑体, 16 **
//; 当前所选字体下一个汉字对应的点阵为: 宽度x高度=12x21, 调整后为: 12x24
0x00,0x00,0x00,0x80,0x3F,0x00,0xE0,0xFF,0x01,0xE0,0xFF,0x01,0x70,0x80,0x03,0x10,
0x00,0x02,0x10,0x00,0x02,0x70,0x80,0x03,0xE0,0xFF,0x01,0xE0,0xFF,0x01,0x80,0x3F,
0x00,0x00,0x00,0x00,
//;-- 1 -- ** 黑体, 16 **
//; 当前所选字体下一个汉字对应的点阵为: 宽度x高度=12x21, 调整后为: 12x24
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x40,0x00,0x00,0x40,0x00,0x00,0xE0,
0xFF,0x03,0xF0,0xFF,0x03,0xF0,0xFF,0x03,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,
//;-- 2 -- ** 黑体, 16 **
//; 当前所选字体下一个汉字对应的点阵为: 宽度x高度=12x21, 调整后为: 12x24
0x00,0x00,0x00,0xC0,0x01,0x03,0xE0,0xC1,0x03,0xF0,0xE1,0x03,0x30,0xF0,0x02,0x10,
0x78,0x02,0x30,0x1C,0x02,0xF0,0x0F,0x02,0xE0,0x07,0x02,0xC0,0x03,0x02,0x00,0x00,
0x00,0x00,0x00,0x00,
///;-- 3 -- ** 黑体, 16 **
//; 当前所选字体下一个汉字对应的点阵为: 宽度x高度=12x21, 调整后为: 12x24
0x00,0x00,0x00,0xC0,0xE0,0x00,0xE0,0xE0,0x01,0xF0,0xE0,0x03,0x30,0x04,0x03,0x10,
0x04,0x02,0x30,0x0E,0x03,0xF0,0xFF,0x03,0xE0,0xFB,0x01,0xC0,0xF1,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,
//;-- 4 -- ** 黑体, 16 **
//; 当前所选字体下一个汉字对应的点阵为: 宽度x高度=12x21, 调整后为: 12x24
0x00,0x00,0x00,0x00,0x30,0x00,0x00,0x3C,0x00,0x00,0x2E,0x00,0x80,0x27,0x00,0xE0,
0x21,0x00,0xF0,0xFF,0x03,0xF0,0xFF,0x03,0xF0,0xFF,0x03,0x00,0x20,0x00,0x00,0x20,
0x00,0x00,0x00,0x00,
//;-- 5 -- ** 黑体, 16 **
//; 当前所选字体下一个汉字对应的点阵为: 宽度x高度=12x21, 调整后为: 12x24
0x00,0x00,0x00,0x00,0xC0,0x00,0xF0,0xC7,0x01,0xF0,0xC7,0x03,0xF0,0x07,0x03,0x10,
0x03,0x02,0x10,0x03,0x03,0x10,0xFF,0x03,0x10,0xFF,0x01,0x10,0xFC,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,
//;-- 6 -- ** 黑体, 16 **
//; 当前所选字体下一个汉字对应的点阵为: 宽度x高度=12x21, 调整后为: 12x24
0x00,0x00,0x00,0x80,0x7F,0x00,0xE0,0xFF,0x01,0xE0,0xFF,0x03,0x70,0x06,0x03,0x10,
0x02,0x02,0x30,0x06,0x03,0x70,0xFE,0x03,0x70,0xFC,0x01,0x60,0xF8,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,
//;-- 7 -- ** 黑体, 16 **
//; 当前所选字体下一个汉字对应的点阵为: 宽度x高度=12x21, 调整后为: 12x24
0x00,0x00,0x00,0x10,0x00,0x00,0x10,0x00,0x00,0x10,0x00,0x03,0x10,0xE0,0x03,0x10,
0xFC,0x03,0x90,0xFF,0x00,0xF0,0x1F,0x00,0xF0,0x03,0x00,0x70,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,
//;-- 8 -- ** 黑体, 16 **
//; 当前所选字体下一个汉字对应的点阵为: 宽度x高度=12x21, 调整后为: 12x24
0x00,0x00,0x00,0xC0,0xF1,0x00,0xE0,0xFB,0x01,0xF0,0xFB,0x03,0x30,0x0E,0x03,0x10,
0x04,0x02,0x10,0x04,0x02,0x30,0x0E,0x03,0xF0,0xFB,0x03,0xE0,0xFB,0x01,0xC0,0xF1,
0x00,0x00,0x00,0x00,
//;-- 9 -- ** 黑体, 16 **
//; 当前所选字体下一个汉字对应的点阵为: 宽度x高度=12x21, 调整后为: 12x24
0x00,0x00,0x00,0xC0,0x87,0x01,0xE0,0x8F,0x03,0xF0,0x9F,0x03,0x30,0x18,0x03,0x10,
0x10,0x02,0x30,0x98,0x03,0xF0,0xFF,0x01,0xE0,0xFF,0x00,0x80,0x3F,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,
//;-- A -- ** 黑体, 16 **
//; 当前所选字体下一个汉字对应的点阵为: 宽度x高度=12x21, 调整后为: 12x24
0x00,0x00,0x03,0x00,0xE0,0x03,0x00,0xFC,0x03,0x80,0xFF,0x00,0xF0,0x3F,0x00,0xF0,
0x21,0x00,0xF0,0x3F,0x00,0x80,0xFF,0x00,0x00,0xFC,0x03,0x00,0xE0,0x03,0x00,0x00,
0x03,0x00,0x00,0x00,
//;-- B -- ** 黑体, 16 **
//; 当前所选字体下一个汉字对应的点阵为: 宽度x高度=12x21, 调整后为: 12x24
0x00,0x00,0x00,0xF0,0xFF,0x03,0xF0,0xFF,0x03,0xF0,0xFF,0x03,0x10,0x04,0x02,0x10,
0x04,0x02,0x10,0x04,0x02,0x30,0x0E,0x03,0xF0,0xFF,0x03,0xE0,0xFB,0x01,0xC0,0xF1,
0x00,0x00,0x00,0x00,
//;-- C -- ** 黑体, 16 **
//; 当前所选字体下一个汉字对应的点阵为: 宽度x高度=12x21, 调整后为: 12x24
0x00,0x00,0x00,0x00,0x7F,0x00,0xC0,0xFF,0x01,0xE0,0xFF,0x01,0x70,0x80,0x03,0x10,
0x00,0x02,0x10,0x00,0x02,0x30,0x00,0x03,0xF0,0xF1,0x03,0xE0,0xF1,0x01,0xC0,0x71,
0x00,0x00,0x00,0x00,
//;-- D -- ** 黑体, 16 **
//; 当前所选字体下一个汉字对应的点阵为: 宽度x高度=12x21, 调整后为: 12x24
0x00,0x00,0x00,0xF0,0xFF,0x03,0xF0,0xFF,0x03,0xF0,0xFF,0x03,0x10,0x00,0x02,0x10,
0x00,0x02,0x30,0x00,0x03,0x70,0x80,0x03,0xE0,0xFF,0x01,0xC0,0xFF,0x00,0x80,0x7F,
0x00,0x00,0x00,0x00,
//;-- E -- ** 黑体, 16 **
//; 当前所选字体下一个汉字对应的点阵为: 宽度x高度=12x21, 调整后为: 12x24
0x00,0x00,0x00,0xF0,0xFF,0x03,0xF0,0xFF,0x03,0xF0,0xFF,0x03,0x10,0x04,0x02,0x10,
0x04,0x02,0x10,0x04,0x02,0x10,0x04,0x02,0x10,0x04,0x02,0x10,0x00,0x02,0x00,0x00,
0x00,0x00,0x00,0x00,
//;-- F -- ** 黑体, 16 **
//; 当前所选字体下一个汉字对应的点阵为: 宽度x高度=12x21, 调整后为: 12x24
0x00,0x00,0x00,0xF0,0xFF,0x03,0xF0,0xFF,0x03,0xF0,0xFF,0x03,0x10,0x08,0x00,0x10,
0x08,0x00,0x10,0x08,0x00,0x10,0x08,0x00,0x10,0x08,0x00,0x10,0x00,0x00,0x10,0x00,
0x00,0x00,0x00,0x00,
};
void cpu_init() /*初始化DSP*/
{
asm(" ssbx intm"); //复位指令 禁止总中断
asm(" ssbx xf"); //总清零
PMST=0xe8; //设置处理器工作模式状态寄存器
SWWSR=0x7fff; //设置软件等待状态，确保处理器初始化期间CPU和外部慢速器件正 //常通信
SWCR=0x0001; //软件等待控制寄存器，等待状态翻倍
IMR=0x010c; //允许int2-3和tint中断
IFR=0xffff; //清除所有中断
CLKMD=0x000; //时钟模式恢复
asm(" rsbx intm"); //开总中断
asm(" rsbx xf"); //打开数据口
}
void zldj() //直流电机测试程序
{ TCR0=0x10;
PRD0=0x99;
TCR0=0xc20;
}
void delay100ms() //利用for循环软件延时100ms
{int i,j,k;
for (i=0;i<40;i++)
for (j=0;j<12;j++)
for (k=0;k<20;k++);
}
void delay10ms() //利用for循环软件延时10ms
{int i,j,k;
for (i=0;i<2;i++)
for (j=0;j<2;j++)
for (k=0;k<2;k++);
}
void dicenga(void) /*片选1的查询函*/
{
delay10ms();
}
void dicengb(void) /*片选2的查询函数*/
{
delay10ms();
}
void lcdwc1(uchar dat) /*片选1的写控制?*/
{
dicenga();
cs1rd=dat;
delay10ms();
}
void lcdwc2(uchar dat) /*片选2的写控制字函数*/
{
dicengb();
cs2rd=dat;
delay10ms();
}
void lcdwd1(uchar dat) /*片选1的写数据函数*/
{
dicenga();
cs1wd=dat;
delay10ms();
}
void lcdwd2(uchar dat) /*片选2的写数据函数*/
{
dicengb();
cs2wd=dat;
delay10ms();
}
void lcdreset(void) //液晶屏初始化或者说复位
{uchar dat;
dat=0x3f;
lcdwc1(dat);
lcdwc2(dat);
dat=0xc0;
lcdwc1(dat);
lcdwc2(dat);
}
void lcdwd(uchar dat,uchar ypos,uchar xpos) //判断其在哪个屏
{
uchar bbb;
bbb=dat;
dat=xpos;
if(dat<64)
{
dat=bbb;
lcdwd1(dat);
}
else
{
dat=bbb;
lcdwd2(dat);
}
}
void lcdpos(uchar ypos,uchar xpos) //设置显示位置
{
uchar bbb;
bbb=xpos;
if(bbb<64)
{
bbb=ypos;
bbb=bbb&0x07;
bbb=bbb+0x0B8;
lcdwc1(bbb);
bbb=xpos;
bbb=bbb&0x3f;
bbb=bbb+0x40;
lcdwc1(bbb);
}
else
{
bbb=ypos;
bbb=bbb&0x07;
bbb=bbb+0x0b8;
lcdwc2(bbb);
bbb=xpos;
bbb=bbb&0x3F;
bbb=bbb+0x40;
lcdwc2(bbb);
}
}
void lcdwrite(uchar dat,uchar ypos,uchar xpos) //LCD写入函数
{
lcdpos( ypos, xpos);
lcdwd(dat,ypos,xpos);
}
void lcdfill() /*液晶屏清屏程序*/
{
uchar dat,ypos, xpos;
dat=0x0;
for(ypos=0;ypos<=7;ypos++)
{
for(xpos=0;xpos<=127;xpos++)
{
lcdwrite(dat,ypos,xpos);
}
}
}
void dataplay(uchar vxpos,uchar vypos,uchar dat2) // 数字显示子程序
{
uchar dat1,ypos,xpos; //vxpos是列的起始地址
//vypos是行的起始地址
ulong x;
x=dat2*36; //确定查表地址
for(xpos=vxpos+0;xpos结果图
结束语
希望可以帮助更多人，如有误，请各位帮忙斧正，谢谢！
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