forked from Archive/PX4-Autopilot
Turn PIC32MXMMB backlight off
git-svn-id: https://nuttx.svn.sourceforge.net/svnroot/nuttx/trunk@4653 7fd9a85b-ad96-42d3-883c-3090e2eb8679
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patacongo
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@ -257,13 +257,20 @@ LEDs
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The Mikroelektronika PIC32MX7 MMB has 3 user LEDs labeled LED0-2 in the
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schematics:
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--- ----- ---------------------------------------------------------
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PIN Board Notes
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--- ----- --------------------------------
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--- ----- ---------------------------------------------------------
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RA0 LED0 Pulled-up, low value illuminates
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RA1 LED1 Pulled-up, low value illuminates
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RD9 LED2 Pulled-up, low value illuminates
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RA9 LED4 Not available for general use*, indicates MMC/SD activity
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--- LED5 Not controllable by software, indicates power-on
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If CONFIG_ARCH_LEDS is defined, then NuttX will control these LEDs as follows:
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* RA9 is also the SD chip select. It will illuminate whenever the SD card
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is selected. If SD is not used, then LED4 could also be used as a user-
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controlled LED.
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If CONFIG_ARCH_LEDS is defined, then NuttX will control these LEDs as follows:
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ON OFF
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------------------------- ---- ---- ---- ---- ---- ----
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@ -108,8 +108,12 @@
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* RA0 LED0 Pulled-up, low value illuminates
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* RA1 LED1 Pulled-up, low value illuminates
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* RD9 LED2 Pulled-up, low value illuminates
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* --- LED4 Not controllable by software, indicates MMC/SD activity
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* RA9 LED4 Not available for general use*, indicates MMC/SD activity
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* --- LED5 Not controllable by software, indicates power-on
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*
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* * RA9 is also the SD chip select. It will illuminate whenever the SD card
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* is selected. If SD is not used, then LED4 could also be used as a user-
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* controlled LED.
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*/
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/* LED index values for use with pic32mx_setled() */
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@ -38,7 +38,7 @@
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CFLAGS += -I$(TOPDIR)/sched
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ASRCS =
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CSRCS = up_boot.c up_leds.c up_spi.c
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CSRCS = up_boot.c up_lcd.c up_leds.c up_spi.c
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ifeq ($(CONFIG_PIC32MX_USBDEV),y)
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CSRCS += up_usbdev.c
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@ -55,8 +55,12 @@
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* RA0 LED0 Pulled-up, low value illuminates
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* RA1 LED1 Pulled-up, low value illuminates
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* RD9 LED2 Pulled-up, low value illuminates
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* --- LED4 Not controllable by software, indicates MMC/SD activity
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* RA9 LED4 Not available for general use*, indicates MMC/SD activity
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* --- LED5 Not controllable by software, indicates power-on
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*
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* * RA9 is also the SD chip select. It will illuminate whenever the SD card
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* is selected. If SD is not used, then LED4 could also be used as a user-
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* controlled LED.
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*/
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/* The Mikroelektronika PIC32MX7 MMB has a joystick:
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@ -71,6 +75,14 @@
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* RA10 JOY-CP Joystick CP, HDR1 pin 25 Pulled up, low value when closed
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*/
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/* LCD
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*
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* ------ -------- ------------------------- --------------------------------
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* GPIO SIGNAL BOARD CONNECTION NOTES
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* ------ -------- ------------------------- --------------------------------
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* RD2 LCD-BLED Backlight Light Low value turns off
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*/
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/****************************************************************************
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* Public Types
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****************************************************************************/
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@ -116,6 +128,18 @@ EXTERN void weak_function pic32mx_spiinitialize(void);
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EXTERN void pic32mx_ledinit(void);
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#endif
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/****************************************************************************
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* Name: pic32mx_lcdinitialize
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*
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* Description:
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* Initialize the LCD. This function should be called early in the boot
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* sequence -- even if the LCD is not enabled. In that case we should
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* at a minimum at least disable the LCD backlight.
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*
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****************************************************************************/
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EXTERN void pic32mx_lcdinitialize(void);
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#undef EXTERN
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#ifdef __cplusplus
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}
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@ -86,6 +86,13 @@ void pic32mx_boardinitialize(void)
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}
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#endif
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/* Initialize the LCD. The LCD initialization function should be called early in the
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* boot sequence -- even if the LCD is not enabled. In that case we should
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* at a minimum at least disable the LCD backlight.
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*/
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pic32mx_lcdinitialize();
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/* Configure on-board LEDs if LED support has been selected. */
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#ifdef CONFIG_ARCH_LEDS
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@ -0,0 +1,81 @@
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/****************************************************************************
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* configs/pic32mx7mmb/src/up_lcd.c
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*
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* Copyright (C) 2012 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <debug.h>
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#include "pic32mx-internal.h"
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#include "pic32mx7mmb_internal.h"
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/****************************************************************************
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* Pre-Processor Definitions
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****************************************************************************/
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/* LCD
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*
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* ------ -------- ------------------------- --------------------------------
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* GPIO SIGNAL BOARD CONNECTION NOTES
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* ------ -------- ------------------------- --------------------------------
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* RD2 LCD-BLED Backlight Light Low value turns off
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*/
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#define GPIO_BLED (GPIO_OUTPUT|GPIO_VALUE_ZERO|GPIO_PORTD|GPIO_PIN2)
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: pic32mx_lcdinitialize
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*
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* Description:
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* Initialize the LCD. This function should be called early in the boot
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* sequendce -- Even if the LCD is not enabled. In that case we should
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* at a minimum at least disable the LCD backlight.
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*
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****************************************************************************/
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void pic32mx_lcdinitialize(void)
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{
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/* Just configure the backlight control as an output and turn off the
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* backlight for now.
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*/
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pic32mx_configgpio(GPIO_BLED);
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}
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@ -46,12 +46,7 @@
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#include <arch/board/board.h>
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#include "chip.h"
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#include "up_arch.h"
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#include "up_internal.h"
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#include "pic32mx-internal.h"
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#include "pic32mx-ioport.h"
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#include "pic32mx7mmb_internal.h"
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/****************************************************************************
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@ -67,11 +62,15 @@
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* RA0 LED0 Pulled-up, low value illuminates
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* RA1 LED1 Pulled-up, low value illuminates
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* RD9 LED2 Pulled-up, low value illuminates
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* --- LED4 Not controllable by software, indicates MMC/SD activity
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* RA9 LED4 Not available for general use*, indicates MMC/SD activity
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* --- LED5 Not controllable by software, indicates power-on
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*
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* If CONFIG_ARCH_LEDS is defined, then NuttX will control these LEDs as follows:
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* * RA9 is also the SD chip select. It will illuminate whenever the SD card
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* is selected. If SD is not used, then LED4 could also be used as a user-
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* controlled LED.
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*
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* If CONFIG_ARCH_LEDS is defined, then NuttX will control these LEDs as
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* follows:
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* ON OFF
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* ------------------------- ---- ---- ---- ---- ---- ----
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* LED0 LED1 LED2 LED0 LED1 LED2
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@ -89,6 +88,7 @@
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#define GPIO_LED_0 (GPIO_OUTPUT|GPIO_VALUE_ONE|GPIO_PORTA|GPIO_PIN0)
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#define GPIO_LED_1 (GPIO_OUTPUT|GPIO_VALUE_ONE|GPIO_PORTA|GPIO_PIN1)
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#define GPIO_LED_2 (GPIO_OUTPUT|GPIO_VALUE_ONE|GPIO_PORTD|GPIO_PIN9)
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#define GPIO_LED_4 (GPIO_OUTPUT|GPIO_VALUE_ONE|GPIO_PORTA|GPIO_PIN9)
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/* LED Management Definitions ***********************************************/
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