/**************************************************************************** * boards/arm/tiva/tm4c123g-launchpad/include/board.h * * 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. * ****************************************************************************/ #ifndef __BOARDS_ARM_TIVA_TMC4C123G_LAUNCHPAD_INCLUDE_BOARD_H #define __BOARDS_ARM_TIVA_TMC4C123G_LAUNCHPAD_INCLUDE_BOARD_H /**************************************************************************** * Included Files ****************************************************************************/ /**************************************************************************** * Pre-processor Definitions ****************************************************************************/ /* Clocking *****************************************************************/ /* RCC settings. Crystals on-board the TMC4C123G LaunchPad include: * * 16MHz connected to OSC0/1 (pins 40/41) * 32.768kHz connected to XOSC0/1 (pins 34/36) */ #define SYSCON_RCC_XTAL SYSCON_RCC_XTAL16000KHZ /* On-board crystal is 16 MHz */ #define XTAL_FREQUENCY 16000000 /* Oscillator source is the main oscillator */ #define SYSCON_RCC_OSCSRC SYSCON_RCC_OSCSRC_MOSC #define SYSCON_RCC2_OSCSRC SYSCON_RCC2_OSCSRC2_MOSC #define OSCSRC_FREQUENCY XTAL_FREQUENCY /* Use system divider = 4; this corresponds to a system clock frequency * of (400 / 1) / 5 = 80MHz (Using RCC2 and DIV400). */ #define TIVA_SYSDIV 5 #define SYSCLK_FREQUENCY 80000000 /* 80MHz */ /* Peripheral Clock (PCLK) * * Same frequency as the SYSCLK */ #define PCLK_FREQUENCY SYSCLK_FREQUENCY /* Other RCC settings: * * - Main and internal oscillators enabled. * - PLL and sys dividers not bypassed * - PLL not powered down * - No auto-clock gating reset */ #define TIVA_RCC_VALUE (SYSCON_RCC_OSCSRC | SYSCON_RCC_XTAL | \ SYSCON_RCC_USESYSDIV | SYSCON_RCC_SYSDIV(TIVA_SYSDIV)) /* RCC2 settings * * - PLL and sys dividers not bypassed. * - PLL not powered down * - Not using RCC2 * * When SYSCON_RCC2_DIV400 is not selected, SYSDIV2 is the divisor-1. * When SYSCON_RCC2_DIV400 is selected, SYSDIV2 is the divisor-1)/2, plus * the LSB: * * SYSDIV2 SYSDIV2LSB DIVISOR * 0 N/A 2 * 1 0 3 * " 1 4 * 2 0 5 * " 1 6 * etc. */ #if (TIVA_SYSDIV & 1) == 0 # define TIVA_RCC2_VALUE (SYSCON_RCC2_OSCSRC | SYSCON_RCC2_SYSDIV2LSB | \ SYSCON_RCC2_SYSDIV_DIV400(TIVA_SYSDIV) | \ SYSCON_RCC2_DIV400 | SYSCON_RCC2_USERCC2) #else # define TIVA_RCC2_VALUE (SYSCON_RCC2_OSCSRC | SYSCON_RCC2_SYSDIV_DIV400(TIVA_SYSDIV) | \ SYSCON_RCC2_DIV400 | SYSCON_RCC2_USERCC2) #endif /* LED definitions **********************************************************/ /* The TMC4C123G LaunchPad has a single RGB LED. * There is only one visible LED which will vary in color. * But, from the standpoint of the firmware, this appears as three LEDs: * * BOARD_LED_R -- Connected to PF1 * BOARD_LED_G -- Connected to PF3 * BOARD_LED_B -- Connected to PF2 */ /* LED index values for use with board_userled() */ #define BOARD_LED_R 0 #define BOARD_LED_G 1 #define BOARD_LED_B 2 #define BOARD_NLEDS 3 /* LED bits for use with board_userled_all() */ #define BOARD_LED1_BIT (1 << BOARD_LED1) #define BOARD_LED2_BIT (1 << BOARD_LED2) /* If CONFIG_ARCH_LEDS is defined, then automated support for the LaunchPad * LEDs will be included in the build: * * OFF: * - OFF means that the OS is still initializing. Initialization is very fast * so if you see this at all, it probably means that the system is hanging * up somewhere in the initialization phases. * * GREEN or GREEN-ish * - This means that the OS completed initialization. * * Bluish: * - Whenever and interrupt or signal handler is entered, the BLUE LED is * illuminated and extinguished when the interrupt or signal handler exits. * This will add a BLUE-ish tinge to the LED. * * Redish: * - If a recovered assertion occurs, the RED component will be illuminated * briefly while the assertion is handled. * You will probably never see this. * * Flashing RED: * - In the event of a fatal crash, the BLUE and GREEN components will be * extinguished and the RED component will FLASH at a 2Hz rate. * RED GREEN BLUE */ #define LED_STARTED 0 /* OFF OFF OFF */ #define LED_HEAPALLOCATE 0 /* OFF OFF OFF */ #define LED_IRQSENABLED 0 /* OFF OFF OFF */ #define LED_STACKCREATED 1 /* OFF ON OFF */ #define LED_INIRQ 2 /* NC NC ON (momentary) */ #define LED_SIGNAL 2 /* NC NC ON (momentary) */ #define LED_ASSERTION 3 /* ON NC NC (momentary) */ #define LED_PANIC 4 /* ON OFF OFF (flashing 2Hz) */ /* LED definitions **********************************************************/ /* The TMC4C123G LaunchPad has a two buttons: * * BOARD_SW1 -- Connected to PF4 * BOARD_SW2 -- Connected to PF0 */ #define BUTTON_SW1 0 #define BUTTON_SW2 1 #define NUM_BUTTONS 2 #define BUTTON_SW1_BIT (1 << BUTTON_SW1) #define BUTTON_SW2_BIT (1 << BUTTON_SW2) /* Pin Multiplexing Disambiguation ******************************************/ #define GPIO_UART1_CTS GPIO_UART1_CTS_1 #define GPIO_UART1_RTS GPIO_UART1_RTS_1 #define GPIO_UART1_RX GPIO_UART1_RX_1 #define GPIO_UART1_TX GPIO_UART1_TX_1 /* CAN0 pin mux selection - defaults to port E in Kconfig */ #ifdef CONFIG_TIVA_CAN0 # ifdef CONFIG_TM4C123G_LAUNCHPAD_CAN0RX_PF0 # define GPIO_CAN0_RX GPIO_CAN0_RX_1 # endif # ifdef CONFIG_TM4C123G_LAUNCHPAD_CAN0RX_PB4 # define GPIO_CAN0_RX GPIO_CAN0_RX_2 # endif # ifdef CONFIG_TM4C123G_LAUNCHPAD_CAN0RX_PE4 # define GPIO_CAN0_RX GPIO_CAN0_RX_3 # endif # ifdef CONFIG_TM4C123G_LAUNCHPAD_CAN0TX_PF3 # define GPIO_CAN0_TX GPIO_CAN0_TX_1 # endif # ifdef CONFIG_TM4C123G_LAUNCHPAD_CAN0TX_PB5 # define GPIO_CAN0_TX GPIO_CAN0_TX_2 # endif # ifdef CONFIG_TM4C123G_LAUNCHPAD_CAN0TX_PE5 # define GPIO_CAN0_TX GPIO_CAN0_TX_3 # endif #endif #endif /* __BOARDS_ARM_TMC4C123G_LAUNCHPAD_INCLUDE_BOARD_H */