📄 main0502b.c
字号:
case 0x0e: column=4;
break;
case 0x0d: column=3;
break;
case 0x0b: column=2;
break;
case 0x07: column=1;
break;
default : column=17;
}
scan_out=0x0f7;
port0=scan_out; /* scan keyboard */
for(i=0;i<1000;i++);
scan_in=port5;
while ((scan_in & 0x0f)==0x0f)
{
scan_out=scan_out>>1;
port0=scan_out;
for(i=0;i<1000;i++);
scan_in=port5;
row--;
if (row==0)
{
row=17;
break;
}
}
key_NO=4*(row-1)+column;
port0=0x00;
x2=port5;
while ((x2&0x0f)!=0x0f)
{
x2=port5;
port0=0x00;
}
for(i=0;i<5000;i++);
x2=port5;
while ((x2&0x0f)!=0x0f)
{
x2=port5;
port0=0x00;
}
switch(key_NO)
{
case 1 :
case 2 :
case 3 :
case 4 :
case 5 :
case 6 :
case 7 :
case 8 :
case 9 :
case 10 : if (input_state==FALSE) /* deal with data keyboard */
break;
if (dot_state)
input_dotbit--;
input_value=input_value*10+key_NO-1;
inputdata_num++;
break;
case 11 : if (input_state==FALSE) /* deal with radix point keyboard */
break;
if (dot_state)
break;
if (inputdata_num!=0)
{
input_dotbit=3;
dot_state=TRUE;
break;
}
case 12 : if (sign_state) /* deal with sign keyboard */
sign_state=FALSE;
else
sign_state=TRUE;
break;
/***********************/
/* code for denote the reverse state */
/***********************/
case 13 : disable_interrupts();
init_SRM();
input_state=TRUE;
/* Enable timer 1 period interrupts */
IFR = 0xffff; /* Clear pending interrupts */
IFRA = 0x7fff;
IFRB = 0xffff;
IMR = 0x0022; /* Enable CPU Interrupts:INT 2,3,6 */
IMRA = 0x0080; /* Enable timer 1 period interrupts */
IMRB = 0x0; /* Enable timer 3 period */
IMRC = 0x0;
asm(" CLRC INTM"); /* Global interrupt enable */
PBDATDIR = 0x0701; /* outputs IOPA0–IOPA2, IOPA0 set high */
break;
case 14 : display_order++;
if (display_order==4)
display_order=1;
break;
case 15 : disable_interrupts();
display_order=1;
enable_interrupts();
drive_SRM();
start_state=TRUE;
break;
case 16 :
/* stop SRM */
/*IMRB = 0x0; /* Disable timer 3 period */
/*IMRC = 0x0; /* Disnable CAP1~3 interrupts*/
disable_interrupts();
eventmgr_init();
init_SRM();
/* Enable timer 1 period interrupts */
IFR = 0xffff; /* Clear pending interrupts */
IFRA = 0x7fff;
IFRB = 0xffff;
IMR = 0x0022; /* Enable CPU Interrupts:INT 2,3,6 */
IMRA = 0x0080; /* Enable timer 1 period interrupts */
IMRB = 0x0; /* Enable timer 3 period */
IMRC = 0x0;
asm(" CLRC INTM"); /* Global interrupt enable */
PBDATDIR = 0x0703; /* outputs IOPA0–IOPA2, IOPA0 set high */
start_state=FALSE;
revert_state=FALSE;
break;
default : break;
}
}
}
/*************************************/
/*********************************************/
/* ISR for A/D and keyboard interrupt */
/* ISR for A/D and keyboard interrupt */
void c_int6()
{
unsigned int ADCfifo_data;
int ADCfifo_status;
IFR=0x0020; /* Clear interrupt flags */
ADCTRL1=0xc100;
do {
ADCfifo_data= ADCFIFO1; /* read value */
ADCfifo_status = ADCTRL2 & 0x0c0; /* read status register, mask bits */
}
while (ADCfifo_status != 0);
if (ADCfifo_data>=IA_max)
{
if (ADC_channel==2)
PADATDIR=PADATDIR & 0x070e;
else if (ADC_channel==3)
PADATDIR=PADATDIR & 0x070d;
else if (ADC_channel==4)
PADATDIR=PADATDIR & 0x070b;
}
else if (ADCfifo_data<=IA_min)
{
if (ADC_channel==2)
PADATDIR=PADATDIR | 0x01;
else if (ADC_channel==3)
PADATDIR=PADATDIR | 0x02;
else if (ADC_channel==4)
PADATDIR=PADATDIR | 0x04;
}
ADC_channel++;
if (ADC_channel>4)
ADC_channel=2;
IFRB=0x0ff;
ADCTRL1=0xca00+(ADC_channel<<1);
}
/* display data on LCD */
void display(display_value,dot_bit)
unsigned int display_value; /* the value want to be displayed */
int dot_bit; /* dot bit */
{
unsigned int bit_value[4];
unsigned int x,port1_value;
port1_value=0;
if (display_value>=2000)
port1_value=port1_value|0x40;
bit_value[3]=display_value%10; /* the lowest bit data */
bit_value[2]=(display_value/10)%10;
bit_value[1]=(display_value/100)%10;
bit_value[0]=display_value/1000; /* the highest bit data */
if (bit_value[0]==1)
port1_value=port1_value|0x02;
if (sign_state)
port1_value=port1_value|0x01;
x=dot_bit;
if ((x>=1)&&(x<=3))
port1_value=port1_value|(1<<(x+1)); /* show radix point */
port1=port1_value;
if ((dot_bit!=1)&&(dot_bit!=2)&&(bit_value[0]==0)&&(bit_value[1]==0))
port2=0x0f;
else
port2=bit_value[1];
if (((dot_bit==3)&&(bit_value[1]==0)&&(bit_value[0]==0))||((dot_bit==4)&&(bit_value[0]==0)&&(bit_value[1]==0)&&(bit_value[2]==0)))
port3=0x0f;
else
port3=bit_value[2];
port4=bit_value[3];
}
/* refresh LCD */
void LCD_refresh()
{
unsigned long velocity,delta_count;
int i;
struct CAP_INT * p1;
if (display_times>=1000)
{
display_times=0;
switch (display_order)
{
case 1: /* read velocity */
delta_count=0;
for(i=1;i<=3;i++)
{
p1=CAP_p;
delta_count=delta_count+p1->delta_count;
p1=p1->next;
}
if (delta_count==0)
velocity=0;
else
velocity=VELOCITY_CONST*30/delta_count;
velocity_value=(unsigned int)velocity;
if (velocity_value%10)
{
velocity_value=velocity;
velocity_dotbit=3;
if (velocity_value>2000)
{
velocity_value=velocity/10;
velocity_dotbit=4;
}
}
else
{
velocity_value=velocity/10;
velocity_dotbit=4;
}
display(velocity_value,velocity_dotbit);
break;
case 2: /* read position */
position_value=position;
if (position_value%10)
{
position_value=position;
position_dotbit=3;
if (position_value>2000)
{
position_value=position/10;
position_dotbit=4;
}
}
else
{
position_value=position;
position_dotbit=4;
}
display(position_value,position_dotbit);
break;
case 3: display(input_value,input_dotbit);
break;
default: break;
}
}
}
/* ***************************************************************** */
/* The main program
/* ***************************************************************** */
main()
{
unsigned int INT1_status;
disable_interrupts();
dsp_setup();
eventmgr_init();
init_SRM();
/* Enable timer 1 period interrupts */
XINT1CR=0x0007;
IFR = 0xffff; /* Clear pending interrupts */
IFRA = 0x7fff;
IFRB = 0xffff;
IMR = 0x0022; /* Enable CPU Interrupts:INT 2,3,6 */
IMRA = 0x0080; /* Enable timer 1 period interrupts */
IMRB = 0x0; /* Enable timer 3 period */
IMRC = 0x0;
asm(" CLRC INTM"); /* Global interrupt enable */
for(;;)
{
port0=0x00;
INT1_status=XINT1CR;
if (INT1_status & 0x8000)
{
XINT1CR=0x0007;
keyboard_ISR();
}
if (CAP_A & CAP_B & CAP_C)
{
ACTR=0x0fff;
COMCON=0x4a57;
}
LCD_refresh();
}
}
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