☚ [[projects:maps21:mess:mess | Messungen]] ★

====== 1ms-Takt korrekt? ======

Is 1ms puls chain **"1ms-Takt"** triggert by negative edge of supply current's phase correct?\\ 
[[projects:maps21:s:ext:extend#schaltung_m21-extend_v1_karte|Schaltung ☛]]

{{:projects:maps21:mess:l2:1ms-takt.png?direct&1200|1ms-Takt}}

  * Unordered List ItemPositiv puls length is obvoiusly exact 1 ms as targeded. But: How is the reptetion rate? "Low" and "High"s are not of equal length! But we espected 20 pulses inside a 50Hz (20ms) interval ... If here a complete periode with "01" is determed to be 1,6ms this equals a rate of 12,5 pulses / 20ms.
  * Unordered List ItemWhy is digital output not presenting a flattop at high level? The frequenzzy defining elements are a capacity and a restistor with the resulting RC product. The given resistor at this borad is low ohmic: by this higher charge and dischrage currents flow in one periode, Chosing a higher restistor but an lower capacity will lowerd the currents and might result in a more flat top. 

----
☚ [[projects:maps21:mess:mess | Messungen]] ★