224 lines
7.8 KiB
C
224 lines
7.8 KiB
C
/****************************************************************************
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* boards/arm/tiva/tm4c1294-launchpad/include/board.h
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*
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* Copyright (C) 2015 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_TM4C1294_LAUNCHPAD_INCLUDE_BOARD_H
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#define __BOARDS_ARM_TIVA_TM4C1294_LAUNCHPAD_INCLUDE_BOARD_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#ifndef __ASSEMBLY__
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# include <stdbool.h>
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#endif
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* Clocking *****************************************************************/
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/* Crystals on-board the EK-TM4C1294XL include:
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*
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* 1. 25.0MHz (Y2) is connected to OSC0/1 pins and is used as the run mode
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* input to the PLL.
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* 2. 32.768kHz (Y3) connected to XOSC0/1 and clocks the hibernation module.
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*/
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#define SYSCON_RCC_XTAL SYSCON_RCC_XTAL16000KHZ /* On-board crystal is 25 MHz */
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#define XTAL_FREQUENCY 25000000
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/* Frequencies of other clock sources */
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#define PIOSC_FREQUENCY 16000000 /* Precision internal oscillator */
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#define RTCOSC_FREQUENCY 32768 /* Hibernation module RTC oscillator */
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#define LFIOSC_FREQUENCY 33000 /* Low frequency internal oscillator */
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/* The PLL generates Fvco according to the following formulae.
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* The input clock to the PLL may be either the external crystal (Fxtal)
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* or PIOSC (Fpiosc).
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* This logic supports only the external crystal as the PLL source clock.
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*
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* Fin = Fxtal / (Q + 1 )(N + 1) -OR- Fpiosc / (Q + 1)(N + 1)
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* Mdiv = Mint + (MFrac / 1024)
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* Fvco = Fin * Mdiv
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*
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* Where the register fields Q and N actually hold (Q-1) and (N-1).
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* The following setup then generates Fvco = 480MHz:
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*
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* Fin = 25 MHz / 1 / 5 = 5 MHz
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* Mdiv = 96
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* Fvco = 480
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*/
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#define BOARD_PLL_MINT 96 /* Integer part of PLL M value */
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#define BOARD_PLL_MFRAC 0 /* Fractional part of PLL M value */
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#define BOARD_PLL_N 5 /* PLL N value */
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#define BOARD_PLL_Q 1 /* PLL Q value */
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#define BOARD_FVCO_FREQUENCY 480000000 /* Resulting Fvco */
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/* When the PLL is active, the system clock frequency (SysClk) is calculated
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* using the following equation:
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*
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* SysClk = Fvco/ (sysdiv + 1)
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*
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* The following setup generates Sysclk = 120MHz:
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*/
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#define BOARD_PLL_SYSDIV 4 /* Sysclk = Fvco / 4 = 120MHz */
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#define SYSCLK_FREQUENCY 120000000 /* Resulting SysClk frequency */
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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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/* Alternate Clock (ALTCLK)
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*
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* The ALTCLK provides a clock source of numerous frequencies to the
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* general-purpose timer, SSI, and UART modules.
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* The default source for the ALTCLK is the Precision
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* Internal Oscillator (PIOSC).
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* The Hibernation Real-time Clock (RTCOSC) and Low
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* Frequency Internal Oscillator (LFIOSC) are alternatives.
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* If the RTCOSC Output is selected, the clock source must also be enabled
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* in the Hibernation module.
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*/
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#define BOARD_ALTCLKCFG SYSCON_ALTCLKCFG_ALTCLK_PIOSC
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#define ALTCLK_FREQUENCY PIOSC_FREQUENCY
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/* LED definitions **********************************************************/
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/* The EK-TM4C1294XL has 5 green LEDs.
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* LED D0 is lit when 3.3V power supply is available .
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* LEDs D1 and D2 are general purpose LEDs.
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* LEDs D3 and D4 can be used for Ethernet link and activity.
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*
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* --- ------------
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* Pin Pin Function
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* --- ------------
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* PN1 green LED D1
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* PN0 green LED D2
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* PF4 green LED D3
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* PF0 green LED D4
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* --- ------------
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*/
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/* LED index values for use with board_userled() */
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#define BOARD_LED_D1 0
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#define BOARD_LED_D2 1
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#define BOARD_LED_D3 2
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#define BOARD_LED_D4 3
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#define BOARD_NLEDS 4
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/* LED bits for use with board_userled_all() */
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#define BOARD_LED_D1_BIT (1 << BOARD_LED_D1)
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#define BOARD_LED_D2_BIT (1 << BOARD_LED_D2)
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#define BOARD_LED_D3_BIT (1 << BOARD_LED_D3)
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#define BOARD_LED_D4_BIT (1 << BOARD_LED_D4)
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/* If CONFIG_ARCH_LEDS is defined,
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* then automated support for the EK-TM4C1294XL LED
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* will be included in the build:
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* LED1 LED2 LED3 LED4
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*/
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#define LED_STARTED 1 /* ON OFF NC NC */
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#define LED_HEAPALLOCATE 0 /* NC NC NC NC */
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#define LED_IRQSENABLED 0 /* NC NC NC NC */
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#define LED_STACKCREATED 2 /* ON ON NC NC */
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#define LED_INIRQ 0 /* NC NC NC NC */
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#define LED_SIGNAL 0 /* NC NC NC NC */
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#define LED_ASSERTION 0 /* NC NC NC NC */
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#define LED_PANIC 3 /* OFF ON NC NC (flashing 2Hz) */
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/* Button definitions *******************************************************/
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/* There are four push buttons on the board.
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* Two of them are user controllable.
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* The others are RESET and WAKE
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*
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* --- ------------
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* Pin Pin Function
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* --- ------------
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* PJ0 USR_SW1
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* PJ1 USR_SW2
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* --- ------------
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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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/* Ethernet LEDs
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*
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* PF0/PF4/PF1 are used for Ethernet LEDs.
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* PF0/EN0LED0/LED4 Ethernet link OK
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* PF4/EN0LED1/LED3 Ethernet TX/RX activity
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* PF1/EN0LED2 Ethernet 100-base TX
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*/
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#define GPIO_EN0_LED0 GPIO_EN0_LED0_1
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#define GPIO_EN0_LED1 GPIO_EN0_LED1_1
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#define GPIO_EN0_LED2 GPIO_EN0_LED2_1
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/* Control pins for BOOST-CC2564MODA plugged into BoosterPack1
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*
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* --- ------------
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* Pin Pin Function
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* --- ------------
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* PM3 NSHUTD
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* PG0 RTS
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* PL4 CTS
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* --- ------------
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*/
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#define UART7_GPIO_NSHUTD (GPIO_FUNC_OUTPUT | GPIO_PORTM | GPIO_PIN_3)
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#define UART7_GPIO_RTS (GPIO_FUNC_OUTPUT | GPIO_PORTG | GPIO_PIN_0)
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#define UART7_GPIO_CTS (GPIO_FUNC_INPUT | GPIO_PORTL | GPIO_PIN_4)
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#endif /* __BOARDS_ARM_TIVA_TM4C1294_LAUNCHPAD_INCLUDE_BOARD_H */
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