{"action":"created","issue":{"url":"https://api.github.com/repos/mubes/orbuculum/issues/7","repository_url":"https://api.github.com/repos/mubes/orbuculum","labels_url":"https://api.github.com/repos/mubes/orbuculum/issues/7/labels{/name}","comments_url":"https://api.github.com/repos/mubes/orbuculum/issues/7/comments","events_url":"https://api.github.com/repos/mubes/orbuculum/issues/7/events","html_url":"https://github.com/mubes/orbuculum/pull/7","id":275210301,"number":7,"title":"Icestick support","user":{"login":"dpiegdon","id":1155873,"avatar_url":"https://avatars1.githubusercontent.com/u/1155873?v=4","gravatar_id":"","url":"https://api.github.com/users/dpiegdon","html_url":"https://github.com/dpiegdon","followers_url":"https://api.github.com/users/dpiegdon/followers","following_url":"https://api.github.com/users/dpiegdon/following{/other_user}","gists_url":"https://api.github.com/users/dpiegdon/gists{/gist_id}","starred_url":"https://api.github.com/users/dpiegdon/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/dpiegdon/subscriptions","organizations_url":"https://api.github.com/users/dpiegdon/orgs","repos_url":"https://api.github.com/users/dpiegdon/repos","events_url":"https://api.github.com/users/dpiegdon/events{/privacy}","received_events_url":"https://api.github.com/users/dpiegdon/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":1,"created_at":"2017-11-20T00:57:05Z","updated_at":"2017-11-22T14:28:59Z","closed_at":null,"author_association":"NONE","pull_request":{"url":"https://api.github.com/repos/mubes/orbuculum/pulls/7","html_url":"https://github.com/mubes/orbuculum/pull/7","diff_url":"https://github.com/mubes/orbuculum/pull/7.diff","patch_url":"https://github.com/mubes/orbuculum/pull/7.patch"},"body":"Ported the `orbtrace` verilog code such that it compiles for a `iCE40HX1K-STICK-EVN` \"icestick\" evaluation board.\r\nThis is an *early* pull request as there are some issues:\r\n* I did not test this yet (no tracing set up so far)\r\n* the icestick does not have Global Buffer IO pins on a header. I had to re-route the signal via a normal pin into an internal GlobalBuffer. This cannot be fixed, except by soldering a wire directly to one of the unconnected GBIO pins of the tq144 package.\r\n\r\nSo this is mostly a feasibility study and a request for comments.\r\nI believe that the logic easily runs on a package that is half the price of the HX8K.\r\n(if you ever decide to design a board and want to use a HX1K for that: do NOT use the VQFP100 package, as it does not have a PLL...)\r\n"},"comment":{"url":"https://api.github.com/repos/mubes/orbuculum/issues/comments/346365745","html_url":"https://github.com/mubes/orbuculum/pull/7#issuecomment-346365745","issue_url":"https://api.github.com/repos/mubes/orbuculum/issues/7","id":346365745,"user":{"login":"dpiegdon","id":1155873,"avatar_url":"https://avatars1.githubusercontent.com/u/1155873?v=4","gravatar_id":"","url":"https://api.github.com/users/dpiegdon","html_url":"https://github.com/dpiegdon","followers_url":"https://api.github.com/users/dpiegdon/followers","following_url":"https://api.github.com/users/dpiegdon/following{/other_user}","gists_url":"https://api.github.com/users/dpiegdon/gists{/gist_id}","starred_url":"https://api.github.com/users/dpiegdon/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/dpiegdon/subscriptions","organizations_url":"https://api.github.com/users/dpiegdon/orgs","repos_url":"https://api.github.com/users/dpiegdon/repos","events_url":"https://api.github.com/users/dpiegdon/events{/privacy}","received_events_url":"https://api.github.com/users/dpiegdon/received_events","type":"User","site_admin":false},"created_at":"2017-11-22T14:28:59Z","updated_at":"2017-11-22T14:28:59Z","author_association":"NONE","body":"Hi Dave,\r\nI am currently in the process of setting up and testing on the HX1K. Also today my HX8K board arrived, that I can use for referencing.\r\nI found that I have issues with the set baudrate of the UART block. It seems to be off by factor 1.3 .\r\nAlso when echoing back the received data, the lowest bit seems to be lost.\r\nI found the original upstream source at opencores and saw that you made quite a few changes, probably in the process of setting the system up.\r\nThe baudrate was set to 10M in the core. What baudrate did you use on the other end?\r\n\r\nWhen I use the original upstream source, slightly adapted, I can easily set correct baudrates of 12MBit, which is the highest supported by the FT2232H chip on the dev-boards.\r\nSadly linux only supports 4M without manually tweaking the serial line. I am looking into that now.\r\n\r\nAlso I thought about information that we might want to send *to* the board.\r\nSuch as: single or dual datarate, number of bits used for tracing.\r\nAny other Ideas?\r\nOnce I got the serial line properly working at 12M, would you mind me implementing that?\r\n"}}
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