samples: display: Remove ST7789V sample
Remove ST7789V display sample as there is a unified display sample in samples/drivers/display. Signed-off-by: Jan Van Winkel <jan.van_winkel@dxplore.eu>
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Jan Van Winkel
Anas Nashif
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5 changed files with 0 additions and 261 deletions
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# SPDX-License-Identifier: Apache-2.0
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cmake_minimum_required(VERSION 3.13.1)
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include($ENV{ZEPHYR_BASE}/cmake/app/boilerplate.cmake NO_POLICY_SCOPE)
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project(st7789v)
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target_sources(app PRIVATE src/main.c)
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.. _st7789v-sample:
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ST7789V Display driver
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######################
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Overview
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********
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This sample will draw some basic rectangles onto the display.
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The rectangle colors and positions are chosen so that you can check the
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orientation of the LCD and correct RGB bit order. The rectangles are drawn
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in clockwise order, from top left corner: Red, Green, Blue, grey. The shade of
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grey changes from black through to white. (if the grey looks too green or red
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at any point then the LCD may be endian swapped).
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Note: The display driver rotates the display so that the 'natural' LCD
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orientation is effectively 270 degrees clockwise of the default display
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controller orientation.
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Building and Running
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********************
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The sample uses the :ref:`st7789v_generic` and the pin assignments on a
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:ref:`nrf52_pca10040` are as follows:
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+-------------------+-------------+
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| | NRF52 PCA10040 | | LCD module|
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| | Pin | | signal |
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+===================+=============+
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| P1.15 (D13) | SPI_SCK |
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+-------------------+-------------+
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| P1.14 (D12) | SPI_MISO |
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+-------------------+-------------+
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| P1.13 (D11) | SPI_MOSI |
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+-------------------+-------------+
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| P1.12 (D10) | CS |
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+-------------------+-------------+
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| P1.11 (D9) | DATA/CMD |
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+-------------------+-------------+
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| P1.10 (D8) | RESET |
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+-------------------+-------------+
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You might need to alter these according to your specific board/LCD configuration.
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For :ref:`nrf52_pca10040`, build this sample application with the following commands:
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.. zephyr-app-commands::
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:zephyr-app: samples/display/st7789v
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:board: nrf52_pca10040
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:shield: st7789v_generic
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:goals: build
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:compact:
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See :ref:`nrf52_pca10040` on how to flash the build.
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References
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**********
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- `ST7789V datasheet`_
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.. _Manufacturer site: https://www.sitronix.com.tw/en/product/Driver/mobile_display.html
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.. _ST7789V datasheet: https://www.crystalfontz.com/controllers/Sitronix/ST7789V/
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CONFIG_PRINTK=y
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CONFIG_HEAP_MEM_POOL_SIZE=16384
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CONFIG_LOG=y
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CONFIG_DISPLAY=y
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CONFIG_DISPLAY_LOG_LEVEL_DBG=y
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sample:
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description: Sample application for ST7789V display
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name: st7789v_sample
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tests:
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sample.display.st7789v_tl019fqv01:
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build_only: true
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platform_whitelist: nrf52_pca10040
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extra_args: SHIELD=st7789v_tl019fqv01
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tags: display shield
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sample.display.st7789v_waveshare_240x240:
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build_only: true
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platform_whitelist: nrf52_pca10040
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extra_args: SHIELD=st7789v_waveshare_240x240
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tags: display shield
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@ -1,173 +0,0 @@
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/*
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* Copyright (c) 2019 Marc Reilly
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <logging/log.h>
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LOG_MODULE_REGISTER(app, LOG_LEVEL_INF);
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#include <zephyr.h>
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#include <device.h>
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#include <display.h>
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static void backlight_init(void)
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{
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/* If you have a backlight, set it up and turn it on here */
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}
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void main(void)
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{
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LOG_INF("ST7789V display sample");
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struct device *display_dev;
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struct display_capabilities capabilities;
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struct display_buffer_descriptor buf_desc;
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backlight_init();
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#ifdef CONFIG_ST7789V_RGB565
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const size_t rgb_size = 2;
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#else
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const size_t rgb_size = 3;
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#endif
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display_dev = device_get_binding(DT_INST_0_SITRONIX_ST7789V_LABEL);
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if (display_dev == NULL) {
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LOG_ERR("Device not found. Aborting test.");
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return;
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}
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display_get_capabilities(display_dev, &capabilities);
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/* size of the rectangle */
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const size_t w = 40;
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const size_t h = 20;
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const size_t buf_size = rgb_size * w * h;
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/* points are clockwise, from top left */
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size_t x0, y0, x1, y1, x2, y2, x3, y3;
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/* top left */
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x0 = 0;
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y0 = 0;
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/* top right */
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x1 = capabilities.x_resolution - w;
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y1 = 0;
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/* bottom right */
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x2 = capabilities.x_resolution - w;
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y2 = capabilities.y_resolution - h;
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/* bottom left */
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x3 = 0;
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y3 = capabilities.y_resolution - h;
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/* Allocate rectangular buffer for corner data */
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u8_t *buf = k_malloc(buf_size);
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if (buf == NULL) {
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LOG_ERR("Could not allocate memory. Aborting test.");
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return;
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}
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/* Clear frame buffer before enabling LCD, reuse corner buffer
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*/
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int h_step;
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(void)memset(buf, 0, buf_size);
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h_step = (w * h) / capabilities.x_resolution;
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buf_desc.buf_size = buf_size;
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buf_desc.pitch = capabilities.x_resolution;
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buf_desc.width = capabilities.x_resolution;
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buf_desc.height = h_step;
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for (int idx = 0; idx < capabilities.y_resolution; idx += h_step) {
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display_write(display_dev, 0, idx, &buf_desc, buf);
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}
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display_blanking_off(display_dev);
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buf_desc.pitch = w;
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buf_desc.width = w;
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buf_desc.height = h;
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int grey_count = 0;
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size_t cnt = 0;
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while (1) {
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/* Update the color of the rectangle buffer and write the buffer
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* to one of the corners
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*/
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#ifdef CONFIG_ST7789V_RGB565
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int color = cnt % 4;
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/* RGB565 format */
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u16_t color_r;
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u16_t color_g;
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u16_t color_b;
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u16_t color_rgb;
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color_r = (color == 0) ? 0xF800U : 0U;
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color_g = (color == 1) ? 0x07E0U : 0U;
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color_b = (color == 2) ? 0x001FU : 0U;
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color_rgb = color_r + color_g + color_b;
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if (color == 3) {
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u16_t t = grey_count & 0x1f;
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/* shift the green an extra bit, it has 6 bits */
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color_rgb = t << 11 | t << (5+1) | t;
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grey_count++;
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}
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for (size_t idx = 0; idx < buf_size; idx += rgb_size) {
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*(buf + idx + 0) = (color_rgb >> 8) & 0xFFU;
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*(buf + idx + 1) = (color_rgb >> 0) & 0xFFU;
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}
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#else
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int color = cnt % 4;
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u32_t color_rgb;
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u32_t c = grey_count & 0xff;
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switch (cnt % 4) {
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case 0:
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color_rgb = 0x00FF0000u;
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break;
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case 1:
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color_rgb = 0x0000FF00u;
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break;
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case 2:
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color_rgb = 0x000000FFu;
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break;
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case 3:
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color_rgb = c << 16 | c << 8 | c;
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grey_count++;
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break;
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}
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/* RGB888 format */
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for (size_t idx = color; idx < buf_size; idx += rgb_size) {
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*(buf + idx + 0) = color_rgb >> 16;
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*(buf + idx + 1) = color_rgb >> 8;
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*(buf + idx + 2) = color_rgb >> 0;
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}
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#endif
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switch (cnt % 4) {
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case 0:
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/* top left, red */
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display_write(display_dev, x0, y0, &buf_desc, buf);
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break;
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case 1:
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/* top right, green */
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display_write(display_dev, x1, y1, &buf_desc, buf);
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break;
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case 2:
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/* bottom right, blue */
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display_write(display_dev, x2, y2, &buf_desc, buf);
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break;
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case 3:
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/* bottom left, alternating grey */
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display_write(display_dev, x3, y3, &buf_desc, buf);
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break;
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}
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++cnt;
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k_sleep(K_MSEC(100));
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}
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}
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