Editing TAP Instrumentation

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==Instrumentation and Measurement - Workstream #6==
[https://www.opencompute.org/wiki/Time_Appliance_Project Time Appliances Project]

==Objective==
Open source ecosystem for instrumentation and measurement software and tools. Scalable, reliable, cost-effective and efficient.

==Project Team==
:- Lead: [mailto:anand.ram@calnexsol.com Anand Ram] (Calnex)
:- Lead: [mailto:julianstj@fb.com Julian St James] (Meta)

==Meeting invite==
8:00am - 8:30am PST every Second and Fourth Thursday: [https://teams.microsoft.com/dl/launcher/launcher.html?url=%2F_%23%2Fl%2Fmeetup-join%2F19%3Ameeting_OGE1MzNkMGMtZDRjMS00YzFiLTg4MTAtZjcxNzEwYzI2ODIy%40thread.v2%2F0%3Fcontext%3D%257b%2522Tid%2522%253a%2522fbb4e2fb-f802-4d55-beca-b7149551e928%2522%252c%2522Oid%2522%253a%2522cff27e02-befc-4437-98d5-96034f77b90c%2522%257d%26anon%3Dtrue&type=meetup-join&deeplinkId=5f0bbd41-a286-4e8b-b786-5162812cfe21&directDl=true&msLaunch=true&enableMobilePage=true&suppressPrompt=true Launch Teams Meeting Link]

==Recording from Past Calls==
[https://drive.google.com/file/d/1Ctz2eWt2e71y9ChquZGdu6Fc9H5PQZZs/view?usp=sharing 20 Jan 2022]

[https://drive.google.com/file/d/1Ew3LOo-vUEA_KcP0A_MnnkuHmVzykC6V/view?usp=sharing 27 Jan 2022]

[https://drive.google.com/file/d/1iBY6HX9EA6CKG3QWYw7ZwfNMUUyketMG/view?usp=sharing 24 Feb 2022]

[https://drive.google.com/file/d/1xPt-CWZEpcoVGmgpRnG8ccebdfoZ46vq/view?usp=sharing 23 Jun 2022]

[https://drive.google.com/file/d/1uO8RtSFO5l7xTY6mTIrsImsP2iaRvyNC/view?usp=sharing 27 October 2022 PTP Simulator Demo]

[https://drive.google.com/file/d/1sZzXC85Pl4viJoBF0x6Y_eYNiCe-YtY-/view?usp=sharing 10 November 2022 Monitoring Discussion]

==Hardware Roadmap==

{| class="wikitable"
|- 
!
! Design !! Objective 
|- 
| '''#1'''
| Time Card based PPS measurement
| Scaleable use of the Time Card in a generic server to perform up to 4 PPS measurements
|-
|}

==Software==
{| class="wikitable"
|- 
!
! Design !! Objective 
|- 
| '''#1'''
| Time Card based PPS measurement
| Interface with Time Card driver and export PPS measurement data in a useful format
|-
|}

==Potential Future Hardware Solutions==

{| class="wikitable"
|- 
!
! Core Hardware !! Objective 
|- 
| '''#1'''
| TDC
| Small, cheap, and low power use-case
|-
|- 
| '''#2'''
| PTM controller
| A PCIe based daughter card that can be synchronized with a high stability source (Time Card) over PCIe to scale PPS measurements
|-
|- 
| '''#3'''
| UWB
| A method for distributing GPS and time to areas where measurements are made, but GPS is not available
|-
|- 
| '''#4'''
| DPLL
| A discrete design based around a DPLL , removing the need for an FPGA
|-
|}