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Posted to commits@nuttx.apache.org by xi...@apache.org on 2021/07/22 13:23:58 UTC
[incubator-nuttx] branch master updated: added st7735 LCD based
support
This is an automated email from the ASF dual-hosted git repository.
xiaoxiang pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/incubator-nuttx.git
The following commit(s) were added to refs/heads/master by this push:
new c9b4348 added st7735 LCD based support
c9b4348 is described below
commit c9b4348b81b94c47a2168d70b2f9df10ce675ecd
Author: transistorretorcido <tr...@gmail.com>
AuthorDate: Wed Jul 21 21:36:48 2021 -0300
added st7735 LCD based support
added st7735 LCD based support
---
boards/arm/rp2040/common/src/Make.defs | 4 +
boards/arm/rp2040/common/src/rp2040_st7735.c | 149 +++++++++++++++++++++
boards/arm/rp2040/raspberrypi-pico/README.txt | 13 ++
.../raspberrypi-pico/configs/st7735/defconfig | 62 +++++++++
.../arm/rp2040/raspberrypi-pico/src/rp2040_spi.c | 2 +-
5 files changed, 229 insertions(+), 1 deletion(-)
diff --git a/boards/arm/rp2040/common/src/Make.defs b/boards/arm/rp2040/common/src/Make.defs
index 1b68a12..752224b 100644
--- a/boards/arm/rp2040/common/src/Make.defs
+++ b/boards/arm/rp2040/common/src/Make.defs
@@ -38,6 +38,10 @@ ifeq ($(CONFIG_LCD_ST7789),y)
CSRCS += rp2040_st7789.c
endif
+ifeq ($(CONFIG_LCD_ST7735),y)
+CSRCS += rp2040_st7735.c
+endif
+
ifeq ($(CONFIG_USBMSC),y)
CSRCS += rp2040_usbmsc.c
endif
diff --git a/boards/arm/rp2040/common/src/rp2040_st7735.c b/boards/arm/rp2040/common/src/rp2040_st7735.c
new file mode 100644
index 0000000..1f1f42f
--- /dev/null
+++ b/boards/arm/rp2040/common/src/rp2040_st7735.c
@@ -0,0 +1,149 @@
+/****************************************************************************
+ * boards/arm/rp2040/common/src/rp2040_st7735.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/st7735.h>
+
+#include "rp2040_spi.h"
+#include "rp2040_gpio.h"
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+#define LCD_SPI_PORTNO 1
+
+#if LCD_SPI_PORTNO
+#define LCD_DC CONFIG_RP2040_SPI1_GPIO
+#define LCD_RST 10
+#define LCD_BL 11
+#else
+#define LCD_DC CONFIG_RP2040_SPI0_GPIO
+#endif
+
+/****************************************************************************
+ * 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)
+{
+ g_spidev = rp2040_spibus_initialize(LCD_SPI_PORTNO);
+ if (!g_spidev)
+ {
+ lcderr("ERROR: Failed to initialize SPI port %d\n", LCD_SPI_PORTNO);
+ return -ENODEV;
+ }
+
+ /* SPI RX is not used. Same pin is used as LCD Data/Command control */
+
+ rp2040_gpio_init(LCD_DC);
+ rp2040_gpio_setdir(LCD_DC, true);
+ rp2040_gpio_put(LCD_DC, true);
+
+#if LCD_SPI_PORTNO
+
+ /* Pull LCD_RESET high */
+
+ rp2040_gpio_init(LCD_RST);
+ rp2040_gpio_setdir(LCD_RST, true);
+ rp2040_gpio_put(LCD_RST, true);
+
+ /* Set full brightness */
+
+ rp2040_gpio_init(LCD_BL);
+ rp2040_gpio_setdir(LCD_BL, true);
+ rp2040_gpio_put(LCD_BL, true);
+
+#endif
+
+ 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 = st7735_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);
+}
diff --git a/boards/arm/rp2040/raspberrypi-pico/README.txt b/boards/arm/rp2040/raspberrypi-pico/README.txt
index c043cd3..0eb7399 100644
--- a/boards/arm/rp2040/raspberrypi-pico/README.txt
+++ b/boards/arm/rp2040/raspberrypi-pico/README.txt
@@ -106,6 +106,19 @@ Defconfigs
DAT1 (NC)
* Card hot swapping is not supported.
+- st7735
+ st7735 SPI LCD support
+ Connection:
+ st7735 Raspberry Pi Pico
+ GND ----- GND (Pin 3 or 38 or ...)
+ VCC ----- 5V Vbus (Pin 40)
+ SDA ----- GP15 (SPI1 TX) (Pin 20)
+ SCK ----- GP14 (SPI1 SCK) (Pin 19)
+ CS ----- GP13 (SPI1 CSn) (Pin 17)
+ AO(D/C) ----- GP12 (SPI1 RX) (Pin 16)
+ BL ----- GP11 (Pin 15)
+ RESET ----- GP10 (Pin 14)
+
- enc28j60
ENC28J60 SPI ethernet controller support
- IP address is configured by DHCP.
diff --git a/boards/arm/rp2040/raspberrypi-pico/configs/st7735/defconfig b/boards/arm/rp2040/raspberrypi-pico/configs/st7735/defconfig
new file mode 100644
index 0000000..9b70409
--- /dev/null
+++ b/boards/arm/rp2040/raspberrypi-pico/configs/st7735/defconfig
@@ -0,0 +1,62 @@
+#
+# 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_FS_PROCFS_EXCLUDE_ENVIRON is not set
+# CONFIG_LIBC_LONG_LONG is not set
+# CONFIG_NSH_ARGCAT is not set
+# CONFIG_NSH_CMDOPT_HEXDUMP is not set
+# CONFIG_NSH_DISABLE_DATE is not set
+# CONFIG_NSH_DISABLE_LOSMART is not set
+# CONFIG_NSH_DISABLE_PRINTF is not set
+# CONFIG_NSH_DISABLE_TRUNCATE is not set
+# CONFIG_STANDARD_SERIAL is not set
+CONFIG_ARCH="arm"
+CONFIG_ARCH_BOARD="raspberrypi-pico"
+CONFIG_ARCH_BOARD_RASPBERRYPI_PICO=y
+CONFIG_ARCH_CHIP="rp2040"
+CONFIG_ARCH_CHIP_RP2040=y
+CONFIG_ARCH_RAMVECTORS=y
+CONFIG_ARCH_STACKDUMP=y
+CONFIG_BOARDCTL_RESET=y
+CONFIG_BOARD_LOOPSPERMSEC=10450
+CONFIG_BUILTIN=y
+CONFIG_DEBUG_FULLOPT=y
+CONFIG_DEBUG_SYMBOLS=y
+CONFIG_DISABLE_POSIX_TIMERS=y
+CONFIG_DRIVERS_VIDEO=y
+CONFIG_EXAMPLES_FB=y
+CONFIG_EXAMPLES_HELLO=y
+CONFIG_FS_PROCFS=y
+CONFIG_FS_PROCFS_REGISTER=y
+CONFIG_LCD=y
+CONFIG_LCD_FRAMEBUFFER=y
+CONFIG_LCD_PORTRAIT=y
+CONFIG_LCD_ST7735=y
+CONFIG_NFILE_DESCRIPTORS_PER_BLOCK=6
+CONFIG_NSH_ARCHINIT=y
+CONFIG_NSH_BUILTIN_APPS=y
+CONFIG_NSH_READLINE=y
+CONFIG_RAM_SIZE=270336
+CONFIG_RAM_START=0x20000000
+CONFIG_READLINE_CMD_HISTORY=y
+CONFIG_RP2040_SPI1=y
+CONFIG_RP2040_SPI1_GPIO=12
+CONFIG_RP2040_SPI=y
+CONFIG_RR_INTERVAL=200
+CONFIG_SCHED_WAITPID=y
+CONFIG_SDCLONE_DISABLE=y
+CONFIG_SPI_CMDDATA=y
+CONFIG_START_DAY=9
+CONFIG_START_MONTH=2
+CONFIG_START_YEAR=2021
+CONFIG_SYSLOG_CONSOLE=y
+CONFIG_SYSTEM_NSH=y
+CONFIG_TESTING_GETPRIME=y
+CONFIG_TESTING_OSTEST=y
+CONFIG_UART0_SERIAL_CONSOLE=y
+CONFIG_USER_ENTRYPOINT="nsh_main"
+CONFIG_VIDEO_FB=y
diff --git a/boards/arm/rp2040/raspberrypi-pico/src/rp2040_spi.c b/boards/arm/rp2040/raspberrypi-pico/src/rp2040_spi.c
index a0c6883..2d21633 100644
--- a/boards/arm/rp2040/raspberrypi-pico/src/rp2040_spi.c
+++ b/boards/arm/rp2040/raspberrypi-pico/src/rp2040_spi.c
@@ -131,7 +131,7 @@ uint8_t rp2040_spi1status(FAR struct spi_dev_s *dev, uint32_t devid)
#ifdef CONFIG_SPI_CMDDATA
int rp2040_spi1cmddata(FAR struct spi_dev_s *dev, uint32_t devid, bool cmd)
{
-#ifdef CONFIG_LCD_ST7789
+#if defined (CONFIG_LCD_ST7789) || (CONFIG_LCD_ST7735)
if (devid == SPIDEV_DISPLAY(0))
{
/* This is the Data/Command control pad which determines whether the