Commit Graph

12 Commits

Author SHA1 Message Date
microDev a52eb88031
run code formatting script 2021-03-15 19:27:36 +05:30
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 6b7acc65b6
Add polarity and phase to FourWire.
It was fixed as 0/0 even though it used to get it from the current
SPI state. This makes it more explicit with kwargs.

Thanks to magpie_lark and kmatocha on the Adafruit Support forum
for finding the issue: https://forums.adafruit.com/viewtopic.php?f=60&t=162515
2020-03-25 11:22:46 -07:00
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 4013bcde9e
Add baudrate to FourWire and shorten delay. 2019-06-17 17:48:05 -07:00
Scott Shawcroft 0f003ac5b8
Reorganize board busses into shared-bindings and shared-module. 2019-04-08 16:58:50 -07:00
Scott Shawcroft 760bd8d8a4
share fourwire and make nrf compile 2019-01-17 15:15:59 -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
Scott Shawcroft 6697544cdf
Introduce displayio to render graphics to displays.
It's designed to minimize RAM footprint by using Sprites to
represent objects on the screen. The object model also facilitates
partial screen updating which reduces the bandwidth needed to display.

This is all handled in C. Python simply manipulates the objects with
the ability to synchronize to frame timing.
2018-08-31 12:31:52 -07:00