What can I expect when I set the BITMODE register?

RE: What can I expect when I set the BITMODE register?

run_ar — Thu, 12 Nov 2015 11:59:44 GMT

As far as I can see from a brief test: 1 = 8bit, while the rest is; 0 = 16 bit, 2 = 16 bit and 3 = 16 bit. I assume this is because only the number of bits indicated by the bitmode register will be used by the Timer (according to the spec). So the HW checks the bitmode register and finds out it can use 24bits or 32 bits from the CC register. However since it only supports 16 it will only use 16 bits instead of 24/32, aka the bitmode register is "used as a filter" when loading the CC value.

RE: What can I expect when I set the BITMODE register?

Martijn — Fri, 06 Nov 2015 06:57:11 GMT

I did use the definitions, but by accident I configured 32bit mode for timer2 and I my application did behave a bit strange. I only wondered what happens when I configure it for 32bit mode. Does it go to 16 or 8 bitmode?

RE: What can I expect when I set the BITMODE register?

run_ar — Thu, 05 Nov 2015 07:54:31 GMT

I guess so, but why don't you use the bit definitions in nrf51_bitfields.h to set one of the supported bitmodes?