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rtracy
Joined: 13 Oct 2005
Posts: 7
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| Help With Numbers |
 Posted: Wed Apr 26, 2006 6:34 am |
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This version works just fine for making a test pulse.
| Code: | #use delay(clock=4000000)
int y;
int16 low,high;
void main()
{
setup_adc_ports(AN0);
setup_adc(ADC_CLOCK_INTERNAL);
setup_psp(PSP_DISABLED);
setup_spi(FALSE);
setup_timer_0(RTCC_INTERNAL|RTCC_DIV_1);
setup_timer_1(T1_DISABLED);
setup_timer_2(T2_DISABLED,0,1);
setup_comparator(NC_NC_NC_NC);
setup_vref(FALSE);
y=1;
while (y=1) {
high = 1;
low = 19;
output_high(pin_d5);
delay_ms(high);
output_low(pin_d5);
delay_ms(low);
}
}
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This version doesn't seem to pass more than 8 bits. I've tried various specifiers but I'm still missing something. So how do I pass a large number? Thanks for any help.
| Code: | #use delay(clock=4000000)
int y;
int16 low,high;
void main()
{
setup_adc_ports(AN0);
setup_adc(ADC_CLOCK_INTERNAL);
setup_psp(PSP_DISABLED);
setup_spi(FALSE);
setup_timer_0(RTCC_INTERNAL|RTCC_DIV_1);
setup_timer_1(T1_DISABLED);
setup_timer_2(T2_DISABLED,0,1);
setup_comparator(NC_NC_NC_NC);
setup_vref(FALSE);
y=1;
while (y=1) {
high = 1000;
low = 19000;
output_high(pin_d5);
delay_us(high);
output_low(pin_d5);
delay_us(low);
}
} |
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rberek
Joined: 10 Jan 2005
Posts: 207
Location: Ottawa, Canada
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| Posted: Wed Apr 26, 2006 6:41 am |
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| The delay_x statements only take an 8 bit variable. They will take a 16-bit constant. |
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rtracy
Joined: 13 Oct 2005
Posts: 7
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| Posted: Wed Apr 26, 2006 7:15 am |
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| rberek wrote: | | The delay_x statements only take an 8 bit variable. They will take a 16-bit constant. |
Thanks, Rberek. Reading the manual is key. 
I was trying to take a value directly from the 10bit ADC and drop it into a delay statement. |
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PCM programmer
Joined: 06 Sep 2003
Posts: 21708
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rtracy
Joined: 13 Oct 2005
Posts: 7
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| Posted: Thu Apr 27, 2006 3:42 pm |
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Thanks!
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