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samples: display: Use ST7789V generic shield

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Use the ST7789V generic shield in ST7789V display sample

Signed-off-by: Jan Van Winkel <jan.van_winkel@dxplore.eu>
This commit is contained in:
Jan Van Winkel 2019-11-11 12:34:57 +01:00 • committed by Anas Nashif
commit 3e63d6a088
5 changed files with 24 additions and 56 deletions
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38
samples/display/st7789v/README.rst
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@ -18,25 +18,26 @@ controller orientation.
Building and Running Building and Running
******************** ********************
The sample has a board overlay for a nrf52832 based board with the following
pin assignments:
+-------------+-------------+ The sample uses the :ref:`st7789v_generic` and the pin assignments on a
| | nRF52832 | | LCD module| :ref:`nrf52_pca10040` are as follows:
| | Pin | | signal |
+=============+=============+ +-------------------+-------------+
| P0.03 | SPI_SCK | | | NRF52 PCA10040 | | LCD module|
+-------------+-------------+ | | Pin | | signal |
| P0.05 | SPI_MOSI | +===================+=============+
+-------------+-------------+ | P1.15 (D13) | SPI_SCK |
| P0.26 | SPI_MISO | +-------------------+-------------+
+-------------+-------------+ | P1.14 (D12) | SPI_MISO |
| P0.27 | CS | +-------------------+-------------+
+-------------+-------------+ | P1.13 (D11) | SPI_MOSI |
| P0.25 | DATA/CMD | +-------------------+-------------+
+-------------+-------------+ | P1.12 (D10) | CS |
| P0.02 | RESET | +-------------------+-------------+
+-------------+-------------+ | P1.11 (D9) | DATA/CMD |
+-------------------+-------------+
| P1.10 (D8) | RESET |
+-------------------+-------------+
You might need to alter these according to your specific board/LCD configuration. You might need to alter these according to your specific board/LCD configuration.
@ -45,6 +46,7 @@ For :ref:`nrf52_pca10040`, build this sample application with the following comm
.. zephyr-app-commands:: .. zephyr-app-commands::
:zephyr-app: samples/display/st7789v :zephyr-app: samples/display/st7789v
:board: nrf52_pca10040 :board: nrf52_pca10040
:shield: st7789v_generic
:goals: build :goals: build
:compact: :compact:

25
samples/display/st7789v/nrf52_pca10040.overlay
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@ -1,25 +0,0 @@
/*
* Copyright (c) 2019 Creative Product Design
*
* SPDX-License-Identifier: Apache-2.0
*/
&spi0 {
status = "okay";
sck-pin = <3>;
mosi-pin = <5>;
miso-pin = <26>;
cs-gpios = <&gpio0 27 0>;
st7789v@0 {
compatible = "sitronix,st7789v";
label = "DISPLAY";
spi-max-frequency = <20000000>;
reg = <0>;
cmd-data-gpios = <&gpio0 25 0>;
reset-gpios = <&gpio0 2 0>;
width = <320>;
height = <170>;
y-offset = <35>;
};
};

13
samples/display/st7789v/prj.conf
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@ -1,15 +1,4 @@
CONFIG_PRINTK=y CONFIG_PRINTK=y
CONFIG_HEAP_MEM_POOL_SIZE=16384 CONFIG_HEAP_MEM_POOL_SIZE=16384
CONFIG_GPIO=y
CONFIG_SPI=y
CONFIG_DISPLAY=y
CONFIG_ST7789V=y
CONFIG_ST7789V_LCD_TL019FQV01=y
CONFIG_ST7789V_RGB565=y
CONFIG_DISPLAY_LOG_LEVEL_DBG=y
CONFIG_LOG=y CONFIG_LOG=y
CONFIG_DISPLAY_LOG_LEVEL_DBG=y

3
samples/display/st7789v/sample.yaml
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@ -5,4 +5,5 @@ tests:
sample.display.st7789v: sample.display.st7789v:
build_only: true build_only: true
platform_whitelist: nrf52_pca10040 platform_whitelist: nrf52_pca10040
tags: display extra_args: SHIELD=st7789v_generic
tags: display shield

1
samples/display/st7789v/src/main.c
View file

@ -121,6 +121,7 @@ void main(void)
*(buf + idx + 1) = (color_rgb >> 0) & 0xFFU; *(buf + idx + 1) = (color_rgb >> 0) & 0xFFU;
} }
#else #else
int color = cnt % 4;
u32_t color_rgb; u32_t color_rgb;
u32_t c = grey_count & 0xff; u32_t c = grey_count & 0xff;