# RoadRunner PDMIC and Class D

## Display OLED 1.5 pollici 128x128 SPI

* [Schedino Adafruit](https://www.adafruit.com/product/1431)
* [Schema schedino Adafruit](https://learn.adafruit.com/adafruit-1-5-color-oled-breakout-board/downloads-and-links)

Enable the Kernel support for small TFT LCD with ILI9341 LCD Controller

	Device Drivers  --->
	  [*] Staging drivers  --->
	    <*>   Support for small TFT LCD display modules  --->
	        <*>   FB driver for the SSD1351 LCD Controller
            

Connessioni tra schedino display Adafruit e Berta D2

| Signal     | Berta D2 | ADAFRUIT |
|------------|----------|----------|
| SPI0 MOSI  | PA15     | SI       |
| SPI0 MISO  | PA16     | SO       |
| SPI0 SCLK  | PA14     | CL       |
| SPI0 CS0   | PA17     | OC       |
|            |          |          |
| Reset      | PA13     | R        |
| D/C        | PA12     | DC       |
|            |          |          |
| 3V         | 3V       |  3V      |
| GND        | GND      |  GND     |

Device tree definition

	spi0: spi@f8000000 {
		pinctrl-names = "default";
		pinctrl-0 = <&pinctrl_spi0_default>;
		status = "okay";

		device@0 {
			rotate = <0>;
			bgr;
			fps = <30>;
			compatible = "solomon,ssd1351";
			spi-max-frequency = <20000000>;   
			reg = <0>;
			regwidth = <8>;
			buswidth = <8>;
			verbose = <3>;
			reset-gpios = <&pioA PIN_PA13 0>;
			dc-gpios = <&pioA PIN_PA12 0>;
		};
	};

### Disegnare sul display in Python direttamente sul frame buffer

Installare Pittorix

	git https://github.com/robertmuth/Pytorinox.git

Installare PIL e numpy

	sudo apt update
	sudo apt install python3-pil
	sudo apt install python3-numpy

Provare gli esempi su questa pagina:

* <https://raspi.muth.org/framebuffer.html>
			
### Riproduzione video

	sudo mplayer -vo fbdev watch.mov

## Class D amplifier

* @article='roadrunner_classd'

## PDMIC

* @article='roadrunner_pdmic'