Commit Graph

7 Commits

Author SHA1 Message Date
Scott Shawcroft 8d4296f964
Add board.DISPLAY to MagTag. Fix luma computation
* Initialize the EPaper display on the MagTag at start.
* Tweak the display send to take a const buffer.
* Correct Luma math
  * Multiply the blue component, not add.
  * Add all of the components together before dividing. This
    reduces the impact of truncated division.
2020-11-13 18:57:52 -08:00
Scott Shawcroft 7324b70a7c
Rework based on Dan's review 2019-08-23 15:27:21 -07:00
Scott Shawcroft 3a98de1236
Add reset() to display busses to detect whether it works 2019-08-22 14:23:33 -07:00
Scott Shawcroft 70680d5b22
EPaper displays work mostly. 2019-08-22 14:08:33 -07:00
Scott Shawcroft 2d136d58bf
Fix other builds and hallowing 2019-01-17 14:45:29 -08:00
Scott Shawcroft 84292ad890
External fourwire works and blinka splash after 2019-01-17 00:20:16 -08:00
Scott Shawcroft 05d8885a1a
Rework displays in prep for dynamic support and 8bit parallel. 2019-01-16 12:05:20 -08:00