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rajshek_2010
Joined: 24 Nov 2005
Posts: 5
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| PIC J Series Issue with PLL |
 Posted: Tue Dec 16, 2008 8:48 am |
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Hi,
I have recently upgraded my compiler to support J Series.
The current compiler version is 4.083.
We are using PIC18F65J11 with 10 MHz crystal. We wanted to use 4 x PLL clock multiplier.
When we try debugging the debug windows shows that micro is working in 10MHz while we have configured for 10 MHz x 4 PLL.
When we tried PIC18F8722 with 10 MHz, it works well with compiler. The debug window shows as 40 MHz.
Can someone help?
| Code: | #include <18F65J11.h>
#device ICD=TRUE
#device adc=8
#FUSES NOWDT //No Watch Dog Timer
#FUSES WDT128 //Watch Dog Timer uses 1:128 Postscale
#FUSES H4_SW //High speed osc with SW enabled 4x PLL
#FUSES NODEBUG //No Debug mode for ICD
#FUSES NOXINST //Extended set extension and Indexed Addressing mode disabled (Legacy mode)
#FUSES NOSTVREN //Stack full/underflow will not cause reset
#FUSES NOPROTECT //Code not protected from reading
#FUSES NOFCMEN //Fail-safe clock monitor disabled
#FUSES NOIESO //Internal External Switch Over mode disabled
#FUSES PRIMARY //Primary clock is system clock when scs=00
#use delay(clock=10000000)
#use rs232(baud=9600,parity=N,xmit=PIN_C6,rcv=PIN_C7,bits=8)
void main()
{
setup_adc_ports(NO_ANALOGS|VSS_VDD);
setup_adc(ADC_OFF|ADC_TAD_MUL_0);
setup_psp(PSP_DISABLED);
setup_spi(SPI_SS_DISABLED);
setup_wdt(WDT_OFF);
setup_timer_0(RTCC_INTERNAL);
setup_timer_1(T1_DISABLED);
setup_timer_2(T2_DISABLED,0,1);
setup_comparator(NC_NC_NC_NC);
setup_vref(FALSE);
//Setup_Oscillator parameter not selected from Intr Oscillator Config tab
// TODO: USER CODE!!
while(1)
{
output_high(PIN_B1); delay_ms(1000);
output_low(PIN_B1);delay_ms(1000);
}
} |
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asmallri
Joined: 12 Aug 2004
Posts: 1636
Location: Perth, Australia
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| Posted: Tue Dec 16, 2008 9:33 am |
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You did not use the correct value for the delay parameter
| Code: | | #use delay(clock=10000000) |
should be
| Code: | | #use delay(clock=40000000) |
_________________
Regards, Andrew
http://www.brushelectronics.com/software
Home of Ethernet, SD card and Encrypted Serial Bootloaders for PICs!! |
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