HSEROUT at Quarter Rate!

[Dave]

what crystal are you driving the PIC with? I notice you have the PLL enabled which will multiply the crystal freq. by 4 times. You have declared the operating frequency as 8 Mhz. If you have set the internal frequency as 8 Mhz then you are generating 24 Mhz. I would check your settings....

[Gitchie]

Thanks Dave,

I am currenty using the internal osc, as set by CONFIG FOSC = INTIO1 and it should be running at 8MHz by the OSCCON=%01100000 configs. In regards to the PLL, by switching it on - by either the PLLCFG or OSCTUNE, it enables the HSEROUT command to operate at the correct baud, but this results in the rest of the pic running at 4 times...

[Dave]

Gitchie, That is because you have declared to PBP that you are running the code @ 8 Mhz. by the statement:
define OSC 8 ' Internal OSC runs at 8MHz

This statement tells PBP to scale all timing statements like PAUSE and the like to use an 8 Mhz. oscillator. You should be setting the DEFINE statement to 32 Mhz. which is the frequency that the processor is actually being clocked at.

[Gitchie]

That's correct, but then the hserout runs at quarter speed... For the moment, I've set the baud to 9600 and will run it at 2400...

[Dave]

Don't you understand? Just set the baudrate to the desired rate and set the DEFINE OSC 32. Everything will work correctly.....

[Gitchie]

Thanks for your replays Dave,

But it was a typographical error with the HSER2 defines... I had HSER_BAUD2 1200 when it should have been HSER2_BAUD 1200

I was hunting for an OSC problem also

Cheers and thanks again for your suggestions