[time-nuts] GPS message jitter (was GPS for Nixie Clock)

jimlux jimlux at earthlink.net
Tue Jul 19 09:16:16 EDT 2016


On 7/18/16 9:44 PM, David wrote:
> The aged 16550 has various timeouts so an interrupt is triggered with
> a partially full buffer even if it is below the interrupt threshold.
> For implementations which do not do that, I assume they intend for the
> UART to be polled regularly.
>
exactly... you have some sort of blocking read that waits either for an 
interrupt or for time to expire




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