Period Of A Sinewave?

[basicchip]

I think you are confusing your timer and channel nomeclature

P1[18] can be programmed to be Capture input for Timer 1, channel 0. (from the User Manual)

But your code is programming T0_* which is Timer 0

[danlee58]

OK, I thought that it was Capture Register 1, Timer0. I'll correct that and try again.

Another confusing statement in the user manual for the Timer Control Register is:

'0 Counter Enable When one, the Timer Counter and Prescale Counter are enabled for counting. When 1,
the counters are disabled.'

[cfbsoftware]

When 1, the counters are disabled.'

Doesn't make a lot of sense does it? That should read: "When zero, the counters are disabled."

[basicchip]

In newer NXP user manuals that line has been corrected (1 = enable, 0 = disable).

I'll check with NXP to see how / when those kinds of errors get updated user manuals.

[danlee58]

OK, now the Interrupt is working. I can go on to check out the other functions.