{"action":"created","issue":{"url":"https://api.github.com/repos/d-ronin/dRonin/issues/323","labels_url":"https://api.github.com/repos/d-ronin/dRonin/issues/323/labels{/name}","comments_url":"https://api.github.com/repos/d-ronin/dRonin/issues/323/comments","events_url":"https://api.github.com/repos/d-ronin/dRonin/issues/323/events","html_url":"https://github.com/d-ronin/dRonin/issues/323","id":123186503,"number":323,"title":"Large amounts of jitter on Sparky2 OneShot outputs","user":{"login":"droidicus","id":6981482,"avatar_url":"https://avatars.githubusercontent.com/u/6981482?v=3","gravatar_id":"","url":"https://api.github.com/users/droidicus","html_url":"https://github.com/droidicus","followers_url":"https://api.github.com/users/droidicus/followers","following_url":"https://api.github.com/users/droidicus/following{/other_user}","gists_url":"https://api.github.com/users/droidicus/gists{/gist_id}","starred_url":"https://api.github.com/users/droidicus/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/droidicus/subscriptions","organizations_url":"https://api.github.com/users/droidicus/orgs","repos_url":"https://api.github.com/users/droidicus/repos","events_url":"https://api.github.com/users/droidicus/events{/privacy}","received_events_url":"https://api.github.com/users/droidicus/received_events","type":"User","site_admin":false},"labels":[{"url":"https://api.github.com/repos/d-ronin/dRonin/labels/bug","name":"bug","color":"fc2929"},{"url":"https://api.github.com/repos/d-ronin/dRonin/labels/flight","name":"flight","color":"fbca04"},{"url":"https://api.github.com/repos/d-ronin/dRonin/labels/status/requires-investigation","name":"status/requires-investigation","color":"eb6420"}],"state":"open","locked":false,"assignee":null,"milestone":{"url":"https://api.github.com/repos/d-ronin/dRonin/milestones/1","html_url":"https://github.com/d-ronin/dRonin/milestones/Renatus","labels_url":"https://api.github.com/repos/d-ronin/dRonin/milestones/1/labels","id":1430107,"number":1,"title":"Renatus","description":"First Public Release, going out end Jan/beginning Feb","creator":{"login":"tgreer","id":4996098,"avatar_url":"https://avatars.githubusercontent.com/u/4996098?v=3","gravatar_id":"","url":"https://api.github.com/users/tgreer","html_url":"https://github.com/tgreer","followers_url":"https://api.github.com/users/tgreer/followers","following_url":"https://api.github.com/users/tgreer/following{/other_user}","gists_url":"https://api.github.com/users/tgreer/gists{/gist_id}","starred_url":"https://api.github.com/users/tgreer/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/tgreer/subscriptions","organizations_url":"https://api.github.com/users/tgreer/orgs","repos_url":"https://api.github.com/users/tgreer/repos","events_url":"https://api.github.com/users/tgreer/events{/privacy}","received_events_url":"https://api.github.com/users/tgreer/received_events","type":"User","site_admin":false},"open_issues":21,"closed_issues":99,"state":"open","created_at":"2015-11-25T21:40:12Z","updated_at":"2015-12-22T16:58:59Z","due_on":"2016-01-14T08:00:00Z","closed_at":null},"comments":9,"created_at":"2015-12-20T22:19:59Z","updated_at":"2015-12-22T18:32:40Z","closed_at":null,"body":"Attached are a few screenshots from an oscope, showing large variations in pulse-to-pulse spacing. The frequency of the oneshot pulses themselves is consistent, but the offset of some of the pulses seem to be variable in time.\r\n\r\n![scope_8](https://cloud.githubusercontent.com/assets/6981482/11920438/d50449b6-a73d-11e5-8f25-e300d0e37424.png)\r\n![scope_9](https://cloud.githubusercontent.com/assets/6981482/11920442/d505f66c-a73d-11e5-80f1-e1b9da46abb5.png)\r\n![scope_10](https://cloud.githubusercontent.com/assets/6981482/11920441/d504e646-a73d-11e5-8757-25dd7543cb0f.png)\r\n![scope_11](https://cloud.githubusercontent.com/assets/6981482/11920439/d5046b3a-a73d-11e5-8b87-8c28d1c0e3e8.png)\r\n![scope_12](https://cloud.githubusercontent.com/assets/6981482/11920440/d504ca08-a73d-11e5-8b58-d8418a77b061.png)\r\n"},"comment":{"url":"https://api.github.com/repos/d-ronin/dRonin/issues/comments/166697991","html_url":"https://github.com/d-ronin/dRonin/issues/323#issuecomment-166697991","issue_url":"https://api.github.com/repos/d-ronin/dRonin/issues/323","id":166697991,"user":{"login":"sim-","id":115418,"avatar_url":"https://avatars.githubusercontent.com/u/115418?v=3","gravatar_id":"","url":"https://api.github.com/users/sim-","html_url":"https://github.com/sim-","followers_url":"https://api.github.com/users/sim-/followers","following_url":"https://api.github.com/users/sim-/following{/other_user}","gists_url":"https://api.github.com/users/sim-/gists{/gist_id}","starred_url":"https://api.github.com/users/sim-/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/sim-/subscriptions","organizations_url":"https://api.github.com/users/sim-/orgs","repos_url":"https://api.github.com/users/sim-/repos","events_url":"https://api.github.com/users/sim-/events{/privacy}","received_events_url":"https://api.github.com/users/sim-/received_events","type":"User","site_admin":false},"created_at":"2015-12-22T18:32:40Z","updated_at":"2015-12-22T18:32:40Z","body":"Note that it sure would be nice if there were some guard time for minimum low time or else problems like this may cause pulses to \"crash\" together and cause signalling issues, as seen on other platforms: http://0x.ca/sim/tmp/cleanflight_oneshot_mind_the_gap.png . Even if not an electrical issue, many Atmel ESCs can't measure less than a microsecond or two, because the edge to be looked for next must be flipped in the receiving interrupt (no hardware PWM RX)."}}