About SSD1306 Intergration

RE: About SSD1306 Intergration

Sigurd — Tue, 29 Mar 2022 14:12:24 GMT

Hi,

What board are you building for?

RE: About SSD1306 Intergration

Talkamynn — Tue, 29 Mar 2022 13:58:30 GMT

Hi Steve,

It may look as a dummy question, but do you have a display connected to your board ?

[quote userid="114807" url="~/f/nordic-q-a/86360/about-ssd1306-intergration"]dev = DEVICE_DT_GET(DT_CHOSEN(zephyr_display));[/quote]

This line means that, in your board's dts file, you have a node named "zephyr_display" that you can instantiate inside your program.

Take a look here or here for more information on dts, here for a few information about SSD1306, and here for another related topic.

RE: About SSD1306 Intergration

steve.hou — Tue, 29 Mar 2022 11:51:34 GMT

\Nordic\NCS\v1.9.0\zephyr\include\device.h:96:39: error: '__device_dts_ord_DT_CHOSEN_zephyr_display_ORD' undeclared (first use in this function)
96 | #define DEVICE_NAME_GET(name) _CONCAT(__device_, name)
| ^~~~~~~~~
C:\Nordic\NCS\v1.9.0\zephyr\include\toolchain\common.h:132:26: note: in definition of macro '_DO_CONCAT'
132 | #define _DO_CONCAT(x, y) x ## y
| ^
C:\Nordic\NCS\v1.9.0\zephyr\include\device.h:96:31: note: in expansion of macro '_CONCAT'
96 | #define DEVICE_NAME_GET(name) _CONCAT(__device_, name)
| ^~~~~~~

RE: About SSD1306 Intergration

steve.hou — Tue, 29 Mar 2022 11:51:19 GMT

error: '__device_dts_ord_DT_CHOSEN_zephyr_display_ORD' undeclared (first use in this function)