{"action":"created","issue":{"url":"https://api.github.com/repos/MarlinFirmware/Marlin/issues/9645","repository_url":"https://api.github.com/repos/MarlinFirmware/Marlin","labels_url":"https://api.github.com/repos/MarlinFirmware/Marlin/issues/9645/labels{/name}","comments_url":"https://api.github.com/repos/MarlinFirmware/Marlin/issues/9645/comments","events_url":"https://api.github.com/repos/MarlinFirmware/Marlin/issues/9645/events","html_url":"https://github.com/MarlinFirmware/Marlin/pull/9645","id":297443412,"number":9645,"title":"[FR] Multiplex SPI chip select lines","user":{"login":"Iamturbo1978","id":4346591,"avatar_url":"https://avatars2.githubusercontent.com/u/4346591?v=4","gravatar_id":"","url":"https://api.github.com/users/Iamturbo1978","html_url":"https://github.com/Iamturbo1978","followers_url":"https://api.github.com/users/Iamturbo1978/followers","following_url":"https://api.github.com/users/Iamturbo1978/following{/other_user}","gists_url":"https://api.github.com/users/Iamturbo1978/gists{/gist_id}","starred_url":"https://api.github.com/users/Iamturbo1978/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/Iamturbo1978/subscriptions","organizations_url":"https://api.github.com/users/Iamturbo1978/orgs","repos_url":"https://api.github.com/users/Iamturbo1978/repos","events_url":"https://api.github.com/users/Iamturbo1978/events{/privacy}","received_events_url":"https://api.github.com/users/Iamturbo1978/received_events","type":"User","site_admin":false},"labels":[],"state":"closed","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":2,"created_at":"2018-02-15T13:21:33Z","updated_at":"2018-02-16T11:28:31Z","closed_at":"2018-02-16T08:27:55Z","author_association":"NONE","pull_request":{"url":"https://api.github.com/repos/MarlinFirmware/Marlin/pulls/9645","html_url":"https://github.com/MarlinFirmware/Marlin/pull/9645","diff_url":"https://github.com/MarlinFirmware/Marlin/pull/9645.diff","patch_url":"https://github.com/MarlinFirmware/Marlin/pull/9645.patch"},"body":"Just an idea I had. \r\n\r\nI have an azteeg x3 pro board, that currently has (6) TMC2130 stepper drivers. (X, Y, Z0, Z1, E0, E1) I have ran out of easy to use (no soldering) pins for the chip select lines for the stepper drivers. It would be nice if I could use a 74138 (3:8 decoder) to decode 3 pins from the azteeg board, to select one of 8 SPI devices. For example; SD card, display, MAX7218, and 5 stepper drivers from 3 pins from the Arduino. \r\n\r\nAlso another thought would be to use a shift register. Then the shift register could also be used for stepper driver enable lines. \r\n\r\nAgain, this was thoughts running in my head. \r\nThanks\r\nAnthony"},"comment":{"url":"https://api.github.com/repos/MarlinFirmware/Marlin/issues/comments/366211607","html_url":"https://github.com/MarlinFirmware/Marlin/pull/9645#issuecomment-366211607","issue_url":"https://api.github.com/repos/MarlinFirmware/Marlin/issues/9645","id":366211607,"user":{"login":"Iamturbo1978","id":4346591,"avatar_url":"https://avatars2.githubusercontent.com/u/4346591?v=4","gravatar_id":"","url":"https://api.github.com/users/Iamturbo1978","html_url":"https://github.com/Iamturbo1978","followers_url":"https://api.github.com/users/Iamturbo1978/followers","following_url":"https://api.github.com/users/Iamturbo1978/following{/other_user}","gists_url":"https://api.github.com/users/Iamturbo1978/gists{/gist_id}","starred_url":"https://api.github.com/users/Iamturbo1978/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/Iamturbo1978/subscriptions","organizations_url":"https://api.github.com/users/Iamturbo1978/orgs","repos_url":"https://api.github.com/users/Iamturbo1978/repos","events_url":"https://api.github.com/users/Iamturbo1978/events{/privacy}","received_events_url":"https://api.github.com/users/Iamturbo1978/received_events","type":"User","site_admin":false},"created_at":"2018-02-16T11:28:31Z","updated_at":"2018-02-16T11:28:31Z","author_association":"NONE","body":"I do apologize, I did not realize I had this in the wrong spot. I'm still trying to fully understand github."}}
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