154 lines
6.0 KiB
C
154 lines
6.0 KiB
C
/************************************************************************************
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* configs/lm4f120-launchpad/src/lmf4120-launchpad.h
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* arch/arm/src/board/lmf4120-launchpad.h
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*
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* Copyright (C) 2013 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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#ifndef __CONFIGS_LM4F120_LAUNCHPAD_LM4F120_LAUNCHPAD_H
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#define __CONFIGS_LM4F120_LAUNCHPAD_LM4F120_LAUNCHPAD_H
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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 <nuttx/compiler.h>
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#include "chip.h"
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#include "tiva_gpio.h"
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/************************************************************************************
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* Pre-processor Definitions
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************************************************************************************/
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/* How many SSI modules does this chip support? The LM3S6965 supports 1 SSI
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* module (others may support more than 2 -- in such case, the following must be
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* expanded).
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*/
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#if TIVA_NSSI < 1
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# undef CONFIG_TIVA_SSI0
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# undef CONFIG_TIVA_SSI1
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#elif TIVA_NSSI < 2
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# undef CONFIG_TIVA_SSI1
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#endif
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/* LM4F LaunchPad *******************************************************************/
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/* The LM4F120 LaunchPad has a single RGB LED. There is only one visible LED which
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* will vary in color. But, from the standpoint of the firmware, this appears as
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* three LEDs:
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*
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* BOARD_LED_R -- Connected to PF1
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* BOARD_LED_G -- Connected to PF3
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* BOARD_LED_B -- Connected to PF2
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*
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* If CONFIG_ARCH_LEDS is defined, then automated support for the LaunchPad LEDs
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* will be included in the build:
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*
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* OFF:
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* - OFF means that the OS is still initializing. Initialization is very fast so
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* if you see this at all, it probably means that the system is hanging up
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* somewhere in the initialization phases.
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*
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* GREEN or GREEN-ish
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* - This means that the OS completed initialization.
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*
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* Bluish:
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* - Whenever and interrupt or signal handler is entered, the BLUE LED is
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* illuminated and extinguished when the interrupt or signal handler exits.
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* This will add a BLUE-ish tinge to the LED.
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*
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* Redish:
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* - If a recovered assertion occurs, the RED component will be illuminated
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* briefly while the assertion is handled. You will probably never see this.
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*
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* Flashing RED:
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* - In the event of a fatal crash, the BLUE and GREEN components will be
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* extinguished and the RED component will FLASH at a 2Hz rate.
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*
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* RED GREEN BLUE
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* LED_STARTED 0 OFF OFF OFF
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* LED_HEAPALLOCATE 0 OFF OFF OFF
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* LED_IRQSENABLED 0 OFF OFF OFF
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* LED_STACKCREATED 1 OFF ON OFF
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* LED_INIRQ 2 NC NC ON (momentary)
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* LED_SIGNAL 2 NC NC ON (momentary)
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* LED_ASSERTION 3 ON NC NC (momentary)
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* LED_PANIC 3 ON OFF OFF (flashing 2Hz)
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*/
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#define GPIO_LED_R (GPIO_FUNC_OUTPUT | GPIO_VALUE_ONE | GPIO_PORTF | GPIO_PIN_1)
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#define GPIO_LED_G (GPIO_FUNC_OUTPUT | GPIO_VALUE_ONE | GPIO_PORTF | GPIO_PIN_3)
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#define GPIO_LED_B (GPIO_FUNC_OUTPUT | GPIO_VALUE_ONE | GPIO_PORTF | GPIO_PIN_2)
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/* The LM4F120 LaunchPad has a two buttons:
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*
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* BOARD_SW1 -- Connected to PF4
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* BOARD_SW2 -- Connected to PF0
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*/
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#define GPIO_SW1 (GPIO_FUNC_INTERRUPT | GPIO_INT_BOTHEDGES | GPIO_PORTF | GPIO_PIN_1)
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#define GPIO_SW2 (GPIO_FUNC_INTERRUPT | GPIO_INT_BOTHEDGES | GPIO_PORTF | GPIO_PIN_1)
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/************************************************************************************
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* Public Functions
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************************************************************************************/
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#ifndef __ASSEMBLY__
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/************************************************************************************
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* Name: lm4f_spidev_initialize
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*
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* Description:
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* Called to configure SPI chip select GPIO pins for the LM4F LaunchPad.
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*
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************************************************************************************/
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void weak_function lm4f_spidev_initialize(void);
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/****************************************************************************
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* Name: lm4f_led_initialize
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*
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* Description:
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* Called to initialize the on-board LEDs.
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*
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****************************************************************************/
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#ifdef CONFIG_ARCH_LEDS
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void lm4f_led_initialize(void);
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#endif
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#endif /* __ASSEMBLY__ */
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#endif /* __CONFIGS_LM4F120_LAUNCHPAD_LM4F120_LAUNCHPAD_H */
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