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https://git.k-space.ee/arti/vt1200.git
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SDD
3fd1e13b2e
Distils public docs into reference/keyboard-mouse/PROTOCOL.md for the level-1 Keyboard (27) / Mouse (26) device tests: - keyboard: 4800 8N1 RS-423, self-test via FD -> 01 00 00 00 (errors 3D/3E) - mouse: 4800 8O1 RS-232, self-test via 'T' -> 4-byte report (errors 3D/3E, >=0x20 fatal) - separate ports: DUART2 A=keyboard, B=mouse (NOT daisy-chained) MAME already has an LK201 device (src/mame/dec/lk201.cpp/.h) but no DEC mouse.
109 lines
2.2 KiB
Plaintext
109 lines
2.2 KiB
Plaintext
/*
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* Copyright (c) 2022 Espressif Systems (Shanghai) Co., Ltd.
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <zephyr/dt-bindings/led/led.h>
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#include <zephyr/dt-bindings/pwm/pwm.h>
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&uart0 {
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current-speed = <4800>;
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};
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&spi2 {
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/* Workaround to support WS2812 driver */
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line-idle-low;
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led_strip: ws2812@0 {
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compatible = "worldsemi,ws2812-spi";
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/* SPI */
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reg = <0>; /* ignored, but necessary for SPI bindings */
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spi-max-frequency = <6400000>;
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/* WS2812 */
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chain-length = <1>; /* arbitrary; change at will */
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spi-cpha;
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spi-one-frame = <0xf0>; /* 11110000: 625 ns high and 625 ns low */
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spi-zero-frame = <0xc0>; /* 11000000: 312.5 ns high and 937.5 ns low */
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color-mapping = <LED_COLOR_ID_GREEN
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LED_COLOR_ID_RED
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LED_COLOR_ID_BLUE>;
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};
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};
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&pinctrl {
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spim2_default: spim2_default {
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group2 {
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pinmux = <SPIM2_MOSI_GPIO8>;
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};
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};
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ledc0_default: ledc0_default {
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group1 {
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pinmux = <LEDC_CH0_GPIO3>;
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output-enable;
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};
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};
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};
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/ {
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aliases {
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led-strip = &led_strip;
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};
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chosen {
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zephyr,vt-uart = &uart0;
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};
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// chosen {
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// /delete-property/ zephyr,console;
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// };
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uart_tx_enable: uart_tx_enable {
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compatible = "uart-tx-enable";
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gpios = <&gpio0 0 GPIO_ACTIVE_HIGH>;
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};
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leds {
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compatible = "gpio-leds";
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led0: led0 {
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gpios = <&gpio0 1 GPIO_ACTIVE_HIGH>;
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};
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led1: led1 {
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gpios = <&gpio0 7 GPIO_ACTIVE_HIGH>;
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};
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led2: led2 {
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gpios = <&gpio0 5 GPIO_ACTIVE_HIGH>;
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};
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led3: led3 {
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gpios = <&gpio0 4 GPIO_ACTIVE_HIGH>;
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};
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};
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aliases {
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pwm-0 = &ledc0;
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pwm-beeper0 = &pwm_beeper;
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};
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pwmbeepers {
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compatible = "pwm-leds";
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pwm_beeper: pwm_led_gpio0_3 {
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label = "PWM BEEPER0";
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/* ~2 KHz */
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pwms = <&ledc0 0 40000000 PWM_POLARITY_NORMAL>;
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};
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};
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};
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&ledc0 {
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pinctrl-0 = <&ledc0_default>;
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pinctrl-names = "default";
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status = "okay";
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#address-cells = <1>;
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#size-cells = <0>;
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channel0@0 {
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reg = <0x0>;
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timer = <0>;
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};
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};
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