pic16f1829 external oscillator

[dazzas112]

good evening, my apologies if im being stupid here but im having trouble with the pic16f1829 ic using an external 19.6608mhz crystal and oscillator. the code im using is just a basic count and display, with a delay of 1 sec. the problem i am having is that the delay is far to long to be a second delay. if i change to internal oscillator the count is pretty accurate using 16mhz internal frequency. if i look at the config settings when selecting external it is saying to use pin ra7 for clkin which does not actually exist on this ic. i am connecting circuit using the clkin pin from datasheet which is pin ra5. it is the same for pic16f1828. i am using flowcode v8.

[chipfryer27]

Hi

No, not a stupid question. FC does seem to think the pins are RA7 instead of RA5 in v8.

FCv10 does have the correct pins. Have you considered upgrading yet? I don't think v8 is still officially supported and if so may be near end of life

Is there a reason you can't use the internal oscillator feature? If you can't you should be able to use a C-Block at the very start of your program to configure the chip correctly. I don't have the datasheet to hand so can't check what needs to be set.

Regards

[dazzas112]

thank you for you reply, i just wanted accuracy to be honest hence using 19.6608mhz to generate the 1 sec delay. i will look into changing the pins over with c block. i have not used fc for a while so was not planning on upgrading yet just to use this ic.

cheers
darren