Quote Originally Posted by BH_epuk View Post
Hi Chris

I had this problem on a 24k22, turned out to be the TxRD16 bit of TxCON being set for 16bit mode. Changing this to 8 bit mode solved it for me.
Hi, thanks for that.
I did get around to suspecting that and tried changing between 16-bit and 8-bit modes but there was no difference - and I couldn't explain how it would make a difference because the 25k22 and 26k22, which use identical registers.

The only difference between the two timers seems to be that they use different interrupt registers, not between devices though, so I still can't quite explain how the fault occurs