On 05/05/2016 04:38 PM, Timur Tabi wrote: > Guenter Roeck wrote: >> A 32-bit counter is absolutely fine. Letting it run with a 400MHz clock >> (or was it 200 MHz ?) is the problem. A resolution of 2.5ns for a watchdog >> timer does not really make any sense. > > The 10 second limit is based on a 20MHz clock. > Not that a resolution of 50 ns makes sense either, but 4294967296 / 20971520 = 204, and 20971520 * 10 = 209715200 = 0x0c800000. Where does the resolution get lost ? Guenter
