search

jjhorton / PMod

A selection of Random PMod Boards
Other
1 stars 0 forks source link

Countdown gps #77

Closed jjhorton closed 1 year ago

jjhorton commented 1 year ago

Update countdown GPS to be based on using the 1PPS rising edge

jjhorton commented 1 year ago

The display data is currently only displayed after a considerable delay, the seconds value is calculated at the 1PPS rising edge but isn't typical displayed until 150ms later, which should be improved:

The value in seconds for the next value can easily be calculated from the previous, so we should use this value on the next rising edge:

This should substantially improve the update rate.