https://github.com/SuperPrower/pinetime_zephyr_sample_fw

My take on Zephyr-based firmware for PineTime DevKit
https://github.com/SuperPrower/pinetime_zephyr_sample_fw

Last synced: 3 months ago
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My take on Zephyr-based firmware for PineTime DevKit

• Host: GitHub
• URL: https://github.com/SuperPrower/pinetime_zephyr_sample_fw
• Owner: SuperPrower
• License: apache-2.0
• Created: 2019-12-05T21:33:46.000Z (over 4 years ago)
• Default Branch: master
• Last Pushed: 2019-12-16T12:15:59.000Z (over 4 years ago)
• Last Synced: 2024-01-27T01:04:52.129Z (5 months ago)
• Language: C
• Size: 6.84 KB
• Stars: 5
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

Lists

• awesome-pinetime - SuperPrower/pinetime_zephyr_sample_fw

README

        
# Sample PineTime project using Zephyr OS

Currently it shows seconds elapsed since

## Prerequisites

* [Zephyr RTOS](https://docs.zephyrproject.org/latest/)

* [PineTime Board Definition](https://github.com/zephyrproject-rtos/zephyr/pull/19973) (+ see below)

* [Updated ST7789V driver](https://github.com/zephyrproject-rtos/zephyr/pull/20570)

## PineTime definition

Check your pinetime .dts, project assumes following entries: (should make it an overlay or something)

```

/ {

	...

	aliases {

		led0 = &led0;

		blled0 = &blled1;

		blled1 = &blled1;

		blled2 = &blled1;

		status-led= &led0;

		sw0 = &button0;

		key-in = &button0;

	};

	leds {

		compatible = "gpio-leds";

		led0: led_0 {

			gpios = <&gpio0 27 0>;

			label = "Green LED";

		};

		blled0: bl_led_0 {

			gpios = <&gpio0 14 GPIO_INT_ACTIVE_LOW>;

			label = "Backlight LED 0";

		};

		blled1: bl_led_1 {

			gpios = <&gpio0 22 GPIO_INT_ACTIVE_LOW>;

			label = "Backlight LED 1";

		};

		blled2: bl_led_2 {

			gpios = <&gpio0 23 GPIO_INT_ACTIVE_LOW>;

			label = "Backlight LED 2";

		};

	};

	...

};

...

&spi1 {

	compatible = "nordic,nrf-spi";

	status = "okay";

	sck-pin = <2>;

	mosi-pin = <3>;

	miso-pin = <4>;

	cs-gpios = <&gpio0 5 0>, <&gpio0 25 0>;

	...

	/* Sitronix ST7789V LCD */

	st7789v: st7789v@1 {

		compatible = "sitronix,st7789v";

		reg = <1>;

		spi-max-frequency = <8000000>; /* 8MHz */

		label = "ST7789V";

		cmd-data-gpios = <&gpio0 18 0>;	/* DET */

		reset-gpios = <&gpio0 26 0>;	/* RESX reset */

		width = <240>;

		height = <240>;

		x-offset = <0>;

		y-offset = <0>;

		vcom = <0x19>;

		gctrl = <0x35>;

		vrhs = <0x12>;

		vdvs = <0x20>;

		mdac = <0x00>;

		gamma = <0x01>;

		colmod = <0x05>;

		lcm = <0x2c>;

		porch-param = [0c 0c 00 33 33];

		cmd2en-param = [5a 69 02 01];

		pwctrl1-param = [a4 a1];

		pvgam-param = [D0 04 0D 11 13 2B 3F 54 4C 18 0D 0B 1F 23];

		nvgam-param = [D0 04 0C 11 13 2C 3F 44 51 2F 1F 1F 20 23];

		ram-param = [00 F0];

		rgb-param = [CD 08 14];

	};

};

```

**NOTE**: I have no idea what's going on in those parameters, they may or may not be incorrect.

## See Also

[Repository with instructions and examples and different patches](https://github.com/najnesnaj/pinetime-zephyr)