/** * \file * * \brief SAM D20 Xplained Pro board initialization * * Copyright (c) 2014-2015 Atmel Corporation. All rights reserved. * * \asf_license_start * * \page License * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * * 3. The name of Atmel may not be used to endorse or promote products derived * from this software without specific prior written permission. * * 4. This software may only be redistributed and used in connection with an * Atmel microcontroller product. * * THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE * EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. * * \asf_license_stop * */ /* * Support and FAQ: visit Atmel Support */ #include #include #include #include #if defined(__GNUC__) void board_init(void) WEAK __attribute__((alias("system_board_init"))); #elif defined(__ICCARM__) void board_init(void); # pragma weak board_init=system_board_init #endif void system_board_init(void) { struct port_config pin_conf; port_get_config_defaults(&pin_conf); /* Configure LEDs as outputs, turn them off */ pin_conf.direction = PORT_PIN_DIR_OUTPUT; port_pin_set_config(LED_0_PIN, &pin_conf); port_pin_set_output_level(LED_0_PIN, LED_0_INACTIVE); /* Set buttons as inputs */ pin_conf.direction = PORT_PIN_DIR_INPUT; pin_conf.input_pull = PORT_PIN_PULL_UP; port_pin_set_config(BUTTON_0_PIN, &pin_conf); #ifdef CONF_BOARD_AT86RFX port_get_config_defaults(&pin_conf); pin_conf.direction = PORT_PIN_DIR_OUTPUT; port_pin_set_config(AT86RFX_SPI_SCK, &pin_conf); port_pin_set_config(AT86RFX_SPI_MOSI, &pin_conf); port_pin_set_config(AT86RFX_SPI_CS, &pin_conf); port_pin_set_config(AT86RFX_RST_PIN, &pin_conf); port_pin_set_config(AT86RFX_SLP_PIN, &pin_conf); port_pin_set_output_level(AT86RFX_SPI_SCK, true); port_pin_set_output_level(AT86RFX_SPI_MOSI, true); port_pin_set_output_level(AT86RFX_SPI_CS, true); port_pin_set_output_level(AT86RFX_RST_PIN, true); port_pin_set_output_level(AT86RFX_SLP_PIN, true); #ifdef EXT_RF_FRONT_END_CTRL port_pin_set_config(AT86RFX_CPS, &pin_conf); port_pin_set_output_level(AT86RFX_CPS, HIGH); port_pin_set_config(AT86RFX_CSD, &pin_conf); port_pin_set_output_level(AT86RFX_CSD, HIGH); #endif pin_conf.direction = PORT_PIN_DIR_INPUT; port_pin_set_config(AT86RFX_SPI_MISO, &pin_conf); #endif }