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Add board support to use the Nokia 5110 LCD display driver

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This commit is contained in:
Alan Carvalho de Assis 2017-05-26 10:48:11 -03:00
parent 8df5c29857
commit f5732f0d15
5 changed files with 244 additions and 1 deletions
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66
configs/stm32f103-minimum/README.txt
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@ -14,6 +14,7 @@ Contents
- Using 128KiB of Flash instead of 64KiB
- Quadrature Encoder
- SDCard support
- Nokia 5110 LCD Display support
- USB Console support
- STM32F103 Minimum - specific Configuration Options
- Configurations
@ -307,6 +308,71 @@ SDCard support:
PA5, MOSI to PA7 and MISO to PA6. Note: some chinese boards use MOSO instead
of MISO.
Nokia 5110 LCD Display support:
===============================
You can connect a low cost Nokia 5110 LCD display in the STM32F103 Minimum
board this way: connect PA5 (SPI1 CLK) to CLK; PA7 (SPI1 MOSI) to DIN; PA4
to CE; PA3 to RST; PA2 to DC. Also connect 3.3V to VCC and GND to GND.
You can start with default "stm32f103-minimum/nsh" configuration option and
enable these options using "make menuconfig" :
System Type --->
STM32 Peripheral Support --->
[*] SPI1
Device Drivers --->
-*- SPI Driver Support --->
[*] SPI exchange
[*] SPI CMD/DATA
Device Drivers --->
LCD Driver Support --->
[*] Graphic LCD Driver Support --->
[*] Nokia 5110 LCD Display (Philips PCD8544)
(1) Number of PCD8544 Devices
(84) PCD8544 X Resolution
(48) PCD8544 Y Resolution
Graphics Support --->
[*] NX Graphics
(1) Number of Color Planes
(0x0) Initial background color
Supported Pixel Depths --->
[ ] Disable 1 BPP
[*] Packed MS First
Font Selections --->
(7) Bits in Character Set
[*] Mono 5x8
Application Configuration --->
Examples --->
[*] NX graphics "Hello, World!" example
(1) Bits-Per-Pixel
After compiling and flashing the nuttx.bin inside the board, reset it.
You should see it:
NuttShell (NSH)
nsh> ?
help usage: help [-v] [<cmd>]
[ dd free mb sh usleep
? echo help mh sleep xd
cat exec hexdump mw test
cd exit kill pwd true
cp false ls set unset
Builtin Apps:
nxhello
Now just run nxhello and you should see "Hello World" in the display:
nsh> nxhello
USB Console support:
====================

4
configs/stm32f103-minimum/src/Makefile
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@ -81,6 +81,10 @@ ifeq ($(CONFIG_LCD_ST7567),y)
CSRCS += stm32_lcd.c
endif
ifeq ($(CONFIG_LCD_PCD8544),y)
CSRCS += stm32_pcd8544.c
endif
ifeq ($(CONFIG_QENCODER),y)
CSRCS += stm32_qencoder.c
endif

145
configs/stm32f103-minimum/src/stm32_pcd8544.c Normal file
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@ -0,0 +1,145 @@
/****************************************************************************
* config/stm32f103-minimum/src/stm32_pcd8544.c
*
* Copyright (C) 2011, 2013, 2015 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/****************************************************************************
* 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/pcd8544.h>
#include "stm32_gpio.h"
#include "stm32_spi.h"
#include "stm32f103_minimum.h"
#ifdef CONFIG_NX_LCDDRIVER
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
#define LCD_SPI_PORTNO 1 /* On SPI1 */
#ifndef CONFIG_LCD_CONTRAST
# define CONFIG_LCD_CONTRAST 60
#endif
/****************************************************************************
* Private Data
****************************************************************************/
FAR struct spi_dev_s *g_spidev;
FAR struct lcd_dev_s *g_lcddev;
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: board_lcd_initialize
****************************************************************************/
int board_lcd_initialize(void)
{
/* Configure the GPIO pins */
stm32_configgpio(STM32_LCD_RST);
stm32_configgpio(STM32_LCD_CD);
stm32_gpiowrite(STM32_LCD_RST, 1);
stm32_gpiowrite(STM32_LCD_CD, 1);
g_spidev = stm32_spibus_initialize(LCD_SPI_PORTNO);
if (!g_spidev)
{
lcderr("ERROR: Failed to initialize SPI port %d\n", LCD_SPI_PORTNO);
return 0;
}
stm32_gpiowrite(STM32_LCD_RST, 0);
up_mdelay(10);
stm32_gpiowrite(STM32_LCD_RST, 1);
return 1;
}
/****************************************************************************
* Name: board_lcd_getdev
****************************************************************************/
FAR struct lcd_dev_s *board_lcd_getdev(int lcddev)
{
g_lcddev = pcd8544_initialize(g_spidev, lcddev);
if (!g_lcddev)
{
lcderr("ERROR: Failed to bind SPI port 1 to LCD %d: %d\n", lcddev);
}
else
{
lcdinfo("SPI port 1 bound to LCD %d\n", lcddev);
/* And turn the LCD on (CONFIG_LCD_MAXPOWER should be 1) */
(void)g_lcddev->setpower(g_lcddev, CONFIG_LCD_MAXPOWER);
/* Set contrast to right value, otherwise background too dark */
(void)g_lcddev->setcontrast(g_lcddev, CONFIG_LCD_CONTRAST);
return g_lcddev;
}
return NULL;
}
/****************************************************************************
* Name: board_lcd_uninitialize
****************************************************************************/
void board_lcd_uninitialize(void)
{
/* TO-FIX */
}
#endif /* CONFIG_NX_LCDDRIVER */

27
configs/stm32f103-minimum/src/stm32_spi.c
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@ -86,6 +86,10 @@ void stm32_spidev_initialize(void)
(void)stm32_configgpio(STM32_LCD_CS); /* ST7567 chip select */
#endif
#ifdef CONFIG_LCD_PCD8544
(void)stm32_configgpio(STM32_LCD_CS); /* ST7567 chip select */
#endif
#ifdef CONFIG_WL_NRF24L01
stm32_configgpio(GPIO_NRF24L01_CS); /* nRF24L01 chip select */
#endif
@ -138,10 +142,17 @@ void stm32_spi1select(FAR struct spi_dev_s *dev, uint32_t devid,
}
#endif
#ifdef CONFIG_LCD_PCD8544
if (devid == SPIDEV_DISPLAY(0))
{
stm32_gpiowrite(STM32_LCD_CS, !selected);
}
#endif
#ifdef CONFIG_LCD_ST7567
if (devid == SPIDEV_DISPLAY(0))
{
stm32_gpiowrite(GPIO_CS_MFRC522, !selected);
stm32_gpiowrite(STM32_LCD_CS, !selected);
}
#endif
@ -236,6 +247,20 @@ int stm32_spi1cmddata(FAR struct spi_dev_s *dev, uint32_t devid,
}
#endif
#ifdef CONFIG_LCD_PCD8544
if (devid == SPIDEV_DISPLAY(0))
{
/* This is the Data/Command control pad which determines whether the
* data bits are data or a command.
*/
(void)stm32_gpiowrite(STM32_LCD_CD, !cmd);
return OK;
}
#endif
return -ENODEV;
}
#endif

3
configs/stm32f103-minimum/src/stm32f103_minimum.h
View File

@ -101,6 +101,9 @@
#define STM32_LCD_RS (GPIO_OUTPUT|GPIO_CNF_OUTPP|GPIO_MODE_50MHz|\
GPIO_OUTPUT_SET|GPIO_PORTA|GPIO_PIN2)
#define STM32_LCD_CD (GPIO_OUTPUT|GPIO_CNF_OUTPP|GPIO_MODE_50MHz|\
GPIO_OUTPUT_SET|GPIO_PORTA|GPIO_PIN2)
/* PWN Configuration */
#define STM32F103MINIMUM_PWMTIMER 3