Posted on October 02, 2003 at 05:17 hi! all
I have some problems about TBU timer...
it's my function.
pragma TRAP_PROC SAVE_REG
void timer1()
{
//unsigned char i;
//unsigned char key_temp;
//unsigned char key_temp1;
// timer decrement
//if(ValBit(TBUCSR, 5))
// {
if(t_hdd)
t_hdd--;
// }
if(t_fan)
t_fan--;
if(t_audio)
t_audio--;
if(t_printer)
t_printer--;
if(t_cd)
t_cd--;
if(t_ad)
t_ad--;
if(t_adint)
t_adint--;
// time base 1sec
if(tb_100ms)
tb_100ms--;
else
{
tb_100ms = 10;
if(t_disp)
t_disp--;
}
// time base 1sec
if(tb_1sec)
tb_1sec--;
else
{
tb_1sec = 100;
t_1sec++;
}
// key input chattering routine
//unsigned char keytemp;
//unsigned char keytemp1;
sela(0);
selb(1);
key_temp = PBDR;
asm ld A, PBDR
asm ld key_temp, A
key_temp = PBDR;
//key_temp = key_temp & 0x01;
asm LD A, key_temp
asm AND A,0x01
asm LD key_temp,A
key_temp = key_temp << 2;
key_temp1 = key_temp;
sela(1);
selb(0);
//key_temp = PBDR;
asm ld A, PBDR
asm ld key_temp, A
//key_temp = key_temp & 0x01;
asm LD A, key_temp
asm AND A,0x01
asm LD key_temp,A
key_temp = key_temp << 1;
key_temp1 = key_temp1 + key_temp;
sela(0);
selb(0);
//key_temp = PBDR;
asm ld A, PBDR
asm ld key_temp, A
//key_temp = key_temp & 0x01;
asm LD A, key_temp
asm AND A,0x01
asm LD key_temp,A
key_temp1 = key_temp1 | key_temp;
i = key_temp1;
//i = _pa;
//i &= 0x07;
// || ((_pc & 0x0
<< 1) & 0x10);
if(i == key_buffer)
{
if(key_count)
key_count--;
else
{
key_data = i;
key_count = 6;
}
}
else
{
key_buffer = i;
key_count = 6;
}
}
I set timer1's vector in prm file, and set TBUCSR, and TBUCV register,
I have questions now...
1)Interrupt was not enable without ''asm RIM'' instruction why? is it another way to enable inturrupt?
2)this function steps at debugging mode. when function is over, it is back to first of function ''if(t_hdd)'' everytime Idon't know why. can I fix it?
[ This message was edited by: JayB on 02-10-2003 08:48 ]
