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https://github.com/RIOT-OS/RIOT.git
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115 lines
3.3 KiB
C
115 lines
3.3 KiB
C
/*
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* Copyright (C) 2017 Eistec AB
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*
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* This file is subject to the terms and conditions of the GNU Lesser General
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* Public License v2.1. See the file LICENSE in the top level directory for more
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* details.
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*/
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/**
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* @ingroup boards_frdm-kw41z
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* @{
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*
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* @file
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* @name Peripheral MCU configuration for the FRDM-KW41Z
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*
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* @author Joakim Nohlgård <joakim.nohlgard@eistec.se>
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*/
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#ifndef PERIPH_CONF_H
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#define PERIPH_CONF_H
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#include "periph_cpu.h"
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#include "periph_conf_common.h"
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#include "cfg_i2c_default.h"
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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/**
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* @name SPI configuration
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* @{
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*/
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static const spi_conf_t spi_config[] = {
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{
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.dev = SPI0,
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.pin_miso = GPIO_PIN(PORT_C, 18),
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.pin_mosi = GPIO_PIN(PORT_C, 17),
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.pin_clk = GPIO_PIN(PORT_C, 16),
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.pin_cs = {
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GPIO_PIN(PORT_C, 19),
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SPI_CS_UNDEF,
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SPI_CS_UNDEF,
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SPI_CS_UNDEF,
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SPI_CS_UNDEF
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},
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.pcr = GPIO_AF_2,
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.simmask = SIM_SCGC6_SPI0_MASK
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},
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{
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.dev = SPI1,
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.pin_miso = GPIO_PIN(PORT_A, 17),
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.pin_mosi = GPIO_PIN(PORT_A, 16),
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.pin_clk = GPIO_PIN(PORT_A, 18),
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.pin_cs = {
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GPIO_PIN(PORT_A, 19),
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SPI_CS_UNDEF,
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SPI_CS_UNDEF,
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SPI_CS_UNDEF,
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SPI_CS_UNDEF
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},
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.pcr = GPIO_AF_2,
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.simmask = SIM_SCGC6_SPI1_MASK
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}
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};
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#define SPI_NUMOF ARRAY_SIZE(spi_config)
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/** @} */
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/**
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* @name ADC configuration
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* @{
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*/
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static const adc_conf_t adc_config[] = {
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/* dev, pin, channel */
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/* ADC0_DP-ADC0_DM differential reading (Arduino A5 - A0) */
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[ 0] = { .dev = ADC0, .pin = GPIO_UNDEF, .chan = 0 | ADC_SC1_DIFF_MASK, .avg = ADC_AVG_MAX },
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/* ADC0_DP single ended reading (Arduino A5) */
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[ 1] = { .dev = ADC0, .pin = GPIO_UNDEF, .chan = 0, .avg = ADC_AVG_MAX },
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/* PTB2 (Arduino A2) */
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[ 2] = { .dev = ADC0, .pin = GPIO_PIN(PORT_B, 2), .chan = 3, .avg = ADC_AVG_MAX },
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/* PTB3 (Arduino A3) */
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[ 3] = { .dev = ADC0, .pin = GPIO_PIN(PORT_B, 3), .chan = 2, .avg = ADC_AVG_MAX },
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/* internal: temperature sensor */
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/* The temperature sensor has a very high output impedance, it must not be
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* sampled using hardware averaging, or the sampled values will be garbage */
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[ 4] = { .dev = ADC0, .pin = GPIO_UNDEF, .chan = 26, .avg = ADC_AVG_NONE },
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/* Note: the band gap buffer uses a bit of current and is turned off by default,
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* Set PMC->REGSC |= PMC_REGSC_BGBE_MASK before reading or the input will be floating */
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/* internal: band gap */
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[ 5] = { .dev = ADC0, .pin = GPIO_UNDEF, .chan = 27, .avg = ADC_AVG_MAX },
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/* internal: DCDC divided battery level */
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[ 6] = { .dev = ADC0, .pin = GPIO_UNDEF, .chan = 23, .avg = ADC_AVG_MAX },
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};
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#define ADC_NUMOF ARRAY_SIZE(adc_config)
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/*
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* KW41Z ADC reference settings:
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* 0: VREFH external pin or VREF_OUT 1.2 V signal (if VREF module is enabled)
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* 1: VDDA (analog supply input voltage)
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* 2-3: reserved
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*
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* VREF_OUT and VREFH shares the pin on KW41Z and is only connected to a 100 nF
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* capacitor on the FRDM-KW41Z board. So use VDDA by default on this board
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* unless the application enables the VREF module.
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*/
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#define ADC_REF_SETTING 1
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/** @} */
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#ifdef __cplusplus
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}
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#endif
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#endif /* PERIPH_CONF_H */
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/** @} */
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