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stm32f4discovery: Add support to LCD ST7789

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This commit is contained in:
Alan C. Assis 2021-03-13 21:05:31 -03:00 committed by Xiang Xiao
parent ffc43c2d31
commit 43bce6d9b0
4 changed files with 223 additions and 14 deletions
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69
boards/arm/stm32/stm32f4discovery/configs/st7789/defconfig Normal file
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@ -0,0 +1,69 @@
#
# This file is autogenerated: PLEASE DO NOT EDIT IT.
#
# You can use "make menuconfig" to make any modifications to the installed .config file.
# You can then do "make savedefconfig" to generate a new defconfig file that includes your
# modifications.
#
# CONFIG_ARCH_FPU is not set
# CONFIG_NSH_ARGCAT is not set
# CONFIG_NSH_CMDOPT_HEXDUMP is not set
# CONFIG_NSH_CMDPARMS is not set
CONFIG_ARCH="arm"
CONFIG_ARCH_BOARD="stm32f4discovery"
CONFIG_ARCH_BOARD_STM32F4_DISCOVERY=y
CONFIG_ARCH_BUTTONS=y
CONFIG_ARCH_CHIP="stm32"
CONFIG_ARCH_CHIP_STM32=y
CONFIG_ARCH_CHIP_STM32F407VG=y
CONFIG_ARCH_STACKDUMP=y
CONFIG_BOARD_LATE_INITIALIZE=y
CONFIG_BOARD_LOOPSPERMSEC=16717
CONFIG_BUILTIN=y
CONFIG_DRIVERS_VIDEO=y
CONFIG_EXAMPLES_FB=y
CONFIG_EXAMPLES_HELLO=y
CONFIG_FS_PROCFS=y
CONFIG_HAVE_CXX=y
CONFIG_HAVE_CXXINITIALIZE=y
CONFIG_INTELHEX_BINARY=y
CONFIG_LCD=y
CONFIG_LCD_FRAMEBUFFER=y
CONFIG_LCD_NOGETRUN=y
CONFIG_LCD_PORTRAIT=y
CONFIG_LCD_ST7789=y
CONFIG_MAX_TASKS=16
CONFIG_MM_REGIONS=2
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NSH_ARCHINIT=y
CONFIG_NSH_BUILTIN_APPS=y
CONFIG_NSH_FILEIOSIZE=512
CONFIG_NSH_LINELEN=64
CONFIG_NSH_READLINE=y
CONFIG_NXFONTS_DISABLE_1BPP=y
CONFIG_NXFONTS_DISABLE_24BPP=y
CONFIG_NXFONTS_DISABLE_2BPP=y
CONFIG_NXFONTS_DISABLE_32BPP=y
CONFIG_NXFONTS_DISABLE_4BPP=y
CONFIG_NXFONTS_DISABLE_8BPP=y
CONFIG_PREALLOC_TIMERS=4
CONFIG_RAM_SIZE=114688
CONFIG_RAM_START=0x20000000
CONFIG_RAW_BINARY=y
CONFIG_RR_INTERVAL=200
CONFIG_SCHED_WAITPID=y
CONFIG_SDCLONE_DISABLE=y
CONFIG_SPI_CMDDATA=y
CONFIG_START_DAY=6
CONFIG_START_MONTH=12
CONFIG_START_YEAR=2011
CONFIG_STM32_JTAG_SW_ENABLE=y
CONFIG_STM32_PWR=y
CONFIG_STM32_SPI1=y
CONFIG_STM32_USART2=y
CONFIG_SYSTEM_NSH=y
CONFIG_USART2_RXBUFSIZE=128
CONFIG_USART2_SERIAL_CONSOLE=y
CONFIG_USART2_TXBUFSIZE=128
CONFIG_USER_ENTRYPOINT="nsh_main"
CONFIG_VIDEO_FB=y

4
boards/arm/stm32/stm32f4discovery/src/Make.defs
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@ -175,6 +175,10 @@ ifeq ($(CONFIG_WL_GS2200M),y)
CSRCS += stm32_gs2200m.c
endif
ifeq ($(CONFIG_LCD_ST7789),y)
CSRCS += stm32_st7789.c
endif
DEPPATH += --dep-path board
VPATH += :board
CFLAGS += $(shell $(INCDIR) "$(CC)" $(TOPDIR)$(DELIM)arch$(DELIM)$(CONFIG_ARCH)$(DELIM)src$(DELIM)board$(DELIM)board)

35
boards/arm/stm32/stm32f4discovery/src/stm32_spi.c
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@ -63,7 +63,8 @@
* Name: stm32_spidev_initialize
*
* Description:
* Called to configure SPI chip select GPIO pins for the stm32f4discovery board.
* Called to configure SPI chip select GPIO pins for the stm32f4discovery
* board.
*
****************************************************************************/
@ -85,11 +86,11 @@ void weak_function stm32_spidev_initialize(void)
stm32_configgpio(GPIO_MAX7219_CS); /* MAX7219 chip select */
#endif
#ifdef CONFIG_LPWAN_SX127X
stm32_configgpio(GPIO_SX127X_CS); /* SX127x chip select*/
stm32_configgpio(GPIO_SX127X_CS); /* SX127x chip select */
#endif
#if defined(CONFIG_LCD_ST7567)
stm32_configgpio(STM32_LCD_CS); /* ST7567 chip select */
#if defined(CONFIG_LCD_ST7567) || defined(CONFIG_LCD_ST7567)
stm32_configgpio(STM32_LCD_CS); /* ST7567/ST7789 chip select */
#endif
#if defined(CONFIG_STM32_SPI2) && defined(CONFIG_SENSORS_MAX6675)
stm32_configgpio(GPIO_MAX6675_CS); /* MAX6675 chip select */
@ -123,8 +124,8 @@ void weak_function stm32_spidev_initialize(void)
* in your board-specific logic. These functions will perform chip
* selection and status operations using GPIOs in the way your board
* is configured.
* 3. Add a calls to stm32_spibus_initialize() in your low level application
* initialization logic
* 3. Add a calls to stm32_spibus_initialize() in your low level
* application initialization logic
* 4. The handle returned by stm32_spibus_initialize() may then be used to
* bind the SPI driver to higher level logic (e.g., calling
* mmcsd_spislotinitialize(), for example, will bind the SPI driver to
@ -133,9 +134,11 @@ void weak_function stm32_spidev_initialize(void)
****************************************************************************/
#ifdef CONFIG_STM32_SPI1
void stm32_spi1select(FAR struct spi_dev_s *dev, uint32_t devid, bool selected)
void stm32_spi1select(FAR struct spi_dev_s *dev, uint32_t devid,
bool selected)
{
spiinfo("devid: %d CS: %s\n", (int)devid, selected ? "assert" : "de-assert");
spiinfo("devid: %d CS: %s\n", (int)devid, selected ? "assert" :
"de-assert");
#ifdef CONFIG_ENC28J60
if (devid == SPIDEV_ETHERNET(0))
@ -153,7 +156,7 @@ void stm32_spi1select(FAR struct spi_dev_s *dev, uint32_t devid, bool selected)
}
#endif
#ifdef CONFIG_LCD_ST7567
#if defined(CONFIG_LCD_ST7567) || defined(CONFIG_LCD_ST7789)
if (devid == SPIDEV_DISPLAY(0))
{
stm32_gpiowrite(STM32_LCD_CS, !selected);
@ -196,9 +199,11 @@ uint8_t stm32_spi1status(FAR struct spi_dev_s *dev, uint32_t devid)
#endif
#ifdef CONFIG_STM32_SPI2
void stm32_spi2select(FAR struct spi_dev_s *dev, uint32_t devid, bool selected)
void stm32_spi2select(FAR struct spi_dev_s *dev, uint32_t devid,
bool selected)
{
spiinfo("devid: %d CS: %s\n", (int)devid, selected ? "assert" : "de-assert");
spiinfo("devid: %d CS: %s\n", (int)devid, selected ? "assert" :
"de-assert");
#if defined(CONFIG_SENSORS_MAX31855)
if (devid == SPIDEV_TEMPERATURE(0))
@ -239,9 +244,11 @@ uint8_t stm32_spi2status(FAR struct spi_dev_s *dev, uint32_t devid)
#endif
#ifdef CONFIG_STM32_SPI3
void stm32_spi3select(FAR struct spi_dev_s *dev, uint32_t devid, bool selected)
void stm32_spi3select(FAR struct spi_dev_s *dev, uint32_t devid,
bool selected)
{
spiinfo("devid: %d CS: %s\n", (int)devid, selected ? "assert" : "de-assert");
spiinfo("devid: %d CS: %s\n", (int)devid, selected ? "assert" :
"de-assert");
#if defined(CONFIG_WL_GS2200M)
if (devid == SPIDEV_WIRELESS(0))
@ -284,7 +291,7 @@ uint8_t stm32_spi3status(FAR struct spi_dev_s *dev, uint32_t devid)
#ifdef CONFIG_STM32_SPI1
int stm32_spi1cmddata(FAR struct spi_dev_s *dev, uint32_t devid, bool cmd)
{
#ifdef CONFIG_LCD_ST7567
#if defined(CONFIG_LCD_ST7567) || defined(CONFIG_LCD_ST7789)
if (devid == SPIDEV_DISPLAY(0))
{
/* This is the Data/Command control pad which determines whether the

129
boards/arm/stm32/stm32f4discovery/src/stm32_st7789.c Normal file
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@ -0,0 +1,129 @@
/****************************************************************************
* boards/arm/stm32/stm32f4discovery/src/stm32_st7789.c
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdio.h>
#include <stdbool.h>
#include <debug.h>
#include <errno.h>
#include <nuttx/arch.h>
#include <nuttx/board.h>
#include <nuttx/spi/spi.h>
#include <nuttx/lcd/lcd.h>
#include <nuttx/lcd/st7789.h>
#include "stm32.h"
#include "stm32_gpio.h"
#include "stm32_spi.h"
#include "stm32f4discovery.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
#define LCD_SPI_PORTNO 1
/****************************************************************************
* Private Data
****************************************************************************/
static struct spi_dev_s *g_spidev;
static struct lcd_dev_s *g_lcd = NULL;
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: board_lcd_initialize
*
* Description:
* Initialize the LCD video hardware. The initial state of the LCD is
* fully initialized, display memory cleared, and the LCD ready to use, but
* with the power setting at 0 (full off).
*
****************************************************************************/
int board_lcd_initialize(void)
{
stm32_configgpio(STM32_LCD_RST);
stm32_configgpio(STM32_LCD_RS);
g_spidev = stm32_spibus_initialize(LCD_SPI_PORTNO);
if (!g_spidev)
{
lcderr("ERROR: Failed to initialize SPI port %d\n", LCD_SPI_PORTNO);
return -ENODEV;
}
stm32_gpiowrite(STM32_LCD_RST, 0);
up_mdelay(1);
stm32_gpiowrite(STM32_LCD_RST, 1);
up_mdelay(120);
return OK;
}
/****************************************************************************
* Name: board_lcd_getdev
*
* Description:
* Return a a reference to the LCD object for the specified LCD. This
* allows support for multiple LCD devices.
*
****************************************************************************/
FAR struct lcd_dev_s *board_lcd_getdev(int devno)
{
g_lcd = st7789_lcdinitialize(g_spidev);
if (!g_lcd)
{
lcderr("ERROR: Failed to bind SPI port %d to LCD %d\n", LCD_SPI_PORTNO,
devno);
}
else
{
lcdinfo("SPI port %d bound to LCD %d\n", LCD_SPI_PORTNO, devno);
return g_lcd;
}
return NULL;
}
/****************************************************************************
* Name: board_lcd_uninitialize
*
* Description:
* Uninitialize the LCD support
*
****************************************************************************/
void board_lcd_uninitialize(void)
{
/* Turn the display off */
g_lcd->setpower(g_lcd, 0);
}