TMR1H doesn't increment!

[BlueTower]

I am using PIC18F65J90 and in my code I have:

[PCM programmer]

Go to the Timer1 section of the data sheet and read this section:

[Ttelmah]

Haven't checked the data sheet for this chip, but it sounds like the 8/16 bit access behaviour. Basically if 16bit access is enabled, TMR1H, will _only_ update, when TMR1L is read. This is done to ensure that both accesses take place in one clock cycle. The debugger probably does not actually trigger the chip to perform a read.

Best Wishes

[BlueTower]

Thanks my friend. The best way to do it in order debugging to work as well for Timer1 & Timer3 is enable 8 bit read/write and use the get_timer1(), get_timer3() function. This way all 16 bits will be updated!!!