chrysn 951f7dec2c particle-*: Configure antenna switch
The particle-{argon,boron,xenon} all have a uFL connector and a PCB
antenna for 2.4GHz radio, connected by a SKY13351-378LF switch
configured by a VCTL[12] pin pair.

This sets the default configuration to use the PCB antenna, as driving
an unconnected antenna will deteriorate radio performance.
2019-11-18 13:54:22 +01:00

49 lines
1.1 KiB
C

/*
* Copyright (C) 2018 Inria
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License v2.1. See the file LICENSE in the top level
* directory for more details.
*/
/**
* @ingroup boards_common_particle-mesh
* @{
*
* @file
* @brief Common board initialization for the Particle Mesh
*
* @author Alexandre Abadie <alexandre.abadie@inria.fr>
*
* @}
*/
#include "cpu.h"
#include "board.h"
#include "periph/gpio.h"
void board_init(void)
{
/* initialize the boards LEDs */
gpio_init(LED0_PIN, GPIO_OUT);
gpio_set(LED0_PIN);
gpio_init(LED1_PIN, GPIO_OUT);
gpio_set(LED1_PIN);
gpio_init(LED2_PIN, GPIO_OUT);
gpio_set(LED2_PIN);
gpio_init(VCTL1_PIN, GPIO_OUT);
/* Suppress output to the UFL connector */
gpio_set(VCTL1_PIN);
#ifdef VCTL2_PIN
/* On boards without VCLT2_PIN (Boron), the VCTL2 net is driven by NOT(VCTL1) */
gpio_init(VCTL2_PIN, GPIO_OUT);
/* Enable output to the built-in antenna */
gpio_clear(VCTL2_PIN);
#endif
/* initialize the CPU */
cpu_init();
}