On Wed, Dec 15, 2010 at 10:49 PM, Magnus Danielson < [email protected]> wrote:
> ... >> >> http://www.ohwr.org/projects/fmc-tdc/wiki >> > > > Hmm. How do you intend to discriminate short pulses? It needs to be done in > a way that it does not significantly impairs on the timing measurement. > The TDC chip will give the FPGA a measurement but it will be ignored, i.e. not stored in the circular buffer. This would mean the FPGA would need to get its own copy of the input pulses to check for width violations. At the precisions we are considering we could probably use a standard fanout chip. > > Time-stamping wrap-around requirement is not in the spec. Essentially a > requirement on the length of the time-stamping counter. > > Thanks, I made that 64 bits. > You mix requirements and sketch of design-idea. Keep requirements and > proposed design properties separate. > Granted. It's a very young project. We will clean up soon. Cheers, Javier _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
