Problems with interrupts

Projects Programming
1

Hello,

Trying to use the Timer/Counter in the Arduino Uno, I can write and read the contents in TCNT1 but absolutely not in OCR1A (16bits) neither using OCR1AH and OCR1AL.
I can do it well in OCR0A (8bits).
Could somebody me give a help?
Many thanks in advance.
Coxyde

2

Post what you have tried

3

Also, post the code inside code tags please, for forum compatibility.

4

Very thanks for you reply but I found where was the problem : I have to put TCCR1A = 0 BEFORE OCR1A = 0xEFD0.
Yours sincerely.
coxyde