Martin (medelec), just to be sure, your code enables/disables the timer but does not reset or clear it, correct?

Jan

Martin, thanks, I will see if I can get it to work that way. I had a hunch that it had to do with (illegal?) overwrite of interrupt register contents, or possibly just a coding error in the register/bit name, but didn't know how to check that. Martin mnfischer confirmed it indeed is an issue. You ha...

To add: this erroneous behavior was independently confirmed by a highly regarded user here.

Jan

I did a lot of trials this morning, and I think I have a lead. Whenever you enable a timer interrupt while being in an interrupt routine (in my case, an IOC interrupt), things go haywire, to the point that even the IOC routine is no longer called when an ioc occurs. Move the timer enable outside of ...

I am working on a project that uses an interrupt-on-change from a pin, as well as a timer interrupt. The IOC comes from an infra red remote transmitter. As long as the timer interrupt is disabled, it works as designed; when the remote is activated, the interrupt service routine is called and after s...

Ben, I have seen cases where timer and interrupt on change interfere, and again it happened with the attached. In the startup I clear an LED attached to a pin. When an IR remote message is received on an interrupt-on-change pin, macro FallingEdge is called, and the LED is turned on. This work as lon...

Thanks Ben, I can take that into account, but in hardware I can use it to say 20ms?
I would use T1 in the 16F15355 as interval timer, generating an interrupt after say 20-30ms, and use T0 to measure elapsed time in the tens of us range.
Those two won't interfere?

Jan Didden

A slightly related question (I came here to educate myself on the interval timer): could it be that the interval timer doesn't work correctly in simulation?

Jan Didden

With Martin's help I'm making good progress in the NEC IR decoding routines, but hit a snag with the compiler I don't grok. Would appreciate iof anyone (Ben or 'the other' Martin) could take a look. The problem appears when trying to use Timer1 (handle Timer2 in the panel). See attachment. The C-fil...

Yes, both '^' and XOR now works correctly. Thanks!

Jan