210de35cb5
arm: sam & tiva: codestyle fixes
* arm: samd2l2: codestyle fixes
After the board restructuration is time for codestyle cleanup
Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
* arm: samd5e5: codestyle fixes
After the board restructuration is time for codestyle cleanup
Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
* arm: samv7: codestyle fixes
After the board restructuration is time for codestyle cleanup
Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
* arm: tiva: codestyle fixes
After the board restructuration is time for codestyle cleanup
Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
Approved-by: Gregory Nutt <gnutt@nuttx.org>
199 lines
7.2 KiB
C
199 lines
7.2 KiB
C
/****************************************************************************
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* boards/arm/tiva/lm4f120-launchpad/include/board.h
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*
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* Copyright (C) 2014 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 __BOARDS_ARM_TIVA_LM4F120_LAUNCHPAD_INCLUDE_BOARD_H
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#define __BOARDS_ARM_TIVA_LM4F120_LAUNCHPAD_INCLUDE_BOARD_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* Clocking *****************************************************************/
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/* RCC settings. Crytals on-board the LM4F120 LaunchPad include:
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*
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* 16MHz connected to OSC0/1 (pins 40/41)
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* 32.768kHz connected to XOSC0/1 (pins 34/36)
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*/
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#define SYSCON_RCC_XTAL SYSCON_RCC_XTAL16000KHZ /* On-board crystal is 16 MHz */
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#define XTAL_FREQUENCY 16000000
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/* Oscillator source is the main oscillator */
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#define SYSCON_RCC_OSCSRC SYSCON_RCC_OSCSRC_MOSC
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#define SYSCON_RCC2_OSCSRC SYSCON_RCC2_OSCSRC2_MOSC
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#define OSCSRC_FREQUENCY XTAL_FREQUENCY
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/* Use system divider = 4; this corresponds to a system clock frequency
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* of (400 / 1) / 5 = 80MHz (Using RCC2 and DIV400).
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*/
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#define TIVA_SYSDIV 5
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#define SYSCLK_FREQUENCY 80000000 /* 80MHz */
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/* Peripheral Clock (PCLK)
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*
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* Same frequency as the SYSCLK
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*/
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#define PCLK_FREQUENCY SYSCLK_FREQUENCY
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/* Other RCC settings:
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*
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* - Main and internal oscillators enabled.
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* - PLL and sys dividers not bypassed
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* - PLL not powered down
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* - No auto-clock gating reset
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*/
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#define TIVA_RCC_VALUE (SYSCON_RCC_OSCSRC | SYSCON_RCC_XTAL | \
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SYSCON_RCC_USESYSDIV | SYSCON_RCC_SYSDIV(TIVA_SYSDIV))
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/* RCC2 settings
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*
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* - PLL and sys dividers not bypassed.
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* - PLL not powered down
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* - Not using RCC2
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*
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* When SYSCON_RCC2_DIV400 is not selected, SYSDIV2 is the divisor-1.
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* When SYSCON_RCC2_DIV400 is selected, SYSDIV2 is the divisor-1)/2, plus
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* the LSB:
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*
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* SYSDIV2 SYSDIV2LSB DIVISOR
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* 0 N/A 2
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* 1 0 3
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* " 1 4
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* 2 0 5
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* " 1 6
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* etc.
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*/
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#if (TIVA_SYSDIV & 1) == 0
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# define TIVA_RCC2_VALUE (SYSCON_RCC2_OSCSRC | SYSCON_RCC2_SYSDIV2LSB | \
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SYSCON_RCC2_SYSDIV_DIV400(TIVA_SYSDIV) | \
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SYSCON_RCC2_DIV400 | SYSCON_RCC2_USERCC2)
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#else
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# define TIVA_RCC2_VALUE (SYSCON_RCC2_OSCSRC | SYSCON_RCC2_SYSDIV_DIV400(TIVA_SYSDIV) | \
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SYSCON_RCC2_DIV400 | SYSCON_RCC2_USERCC2)
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#endif
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/* LED definitions **********************************************************/
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/* The LM4F120 LaunchPad has a single RGB LED.
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* There is only one visible LED which will vary in color.
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*But, from the standpoint of the firmware, this appears as 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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/* LED index values for use with board_userled() */
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#define BOARD_LED_R 0
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#define BOARD_LED_G 1
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#define BOARD_LED_B 2
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#define BOARD_NLEDS 3
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/* LED bits for use with board_userled_all() */
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#define BOARD_LED1_BIT (1 << BOARD_LED1)
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#define BOARD_LED2_BIT (1 << BOARD_LED2)
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/* If CONFIG_ARCH_LEDS is defined, then automated support for the LaunchPad
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* LEDs 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
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* so if you see this at all, it probably means that the system is hanging
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* up 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.
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* 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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* RED GREEN BLUE
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*/
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#define LED_STARTED 0 /* OFF OFF OFF */
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#define LED_HEAPALLOCATE 0 /* OFF OFF OFF */
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#define LED_IRQSENABLED 0 /* OFF OFF OFF */
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#define LED_STACKCREATED 1 /* OFF ON OFF */
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#define LED_INIRQ 2 /* NC NC ON (momentary) */
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#define LED_SIGNAL 2 /* NC NC ON (momentary) */
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#define LED_ASSERTION 3 /* ON NC NC (momentary) */
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#define LED_PANIC 4 /* ON OFF OFF (flashing 2Hz) */
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/* LED definitions **********************************************************/
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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 BUTTON_SW1 0
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#define BUTTON_SW2 1
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#define NUM_BUTTONS 2
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#define BUTTON_SW1_BIT (1 << BUTTON_SW1)
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#define BUTTON_SW2_BIT (1 << BUTTON_SW2)
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/* Pin Multiplexing Disambiguation ******************************************/
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#define GPIO_UART1_CTS GPIO_UART1_CTS_1
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#define GPIO_UART1_RTS GPIO_UART1_RTS_1
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#define GPIO_UART1_RX GPIO_UART1_RX_1
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#define GPIO_UART1_TX GPIO_UART1_TX_1
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#endif /* __BOARDS_ARM_TIVA_LM4F120_LAUNCHPAD_INCLUDE_BOARD_H */
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