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48 lines
1.1 KiB
C
48 lines
1.1 KiB
C
/*
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* Copyright (C) 2019 Philipp-Alexander Blum <philipp-blum@jakiku.de>
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*
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* This file is subject to the terms and conditions of the GNU Lesser
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* General Public License v2.1. See the file LICENSE in the top level
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* directory for more details.
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*/
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/**
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* @defgroup gpio_util GPIO I/O Utils
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* @ingroup drivers_periph_gpio
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* @brief GPIO I/O utility functions
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*
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* @{
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*
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* @file
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* @brief GPIO I/O utility function implementations
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*
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* @author Philipp-Alexander Blum <philipp-blum@jakiku.de>
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*/
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#ifndef PERIPH_GPIO_UTIL_H
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#define PERIPH_GPIO_UTIL_H
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#include "gpio.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* @brief Shift in a byte from data_pin, create clock pulses on clock_pin
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*
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* This function has the same functionality as the Arduino shiftIn() in Advanced
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* I/O.
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*
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* @param[in] data_pin Pin to read data from
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* @param clock_pin Pin to create clock pulses on
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* @return the resulting uint8_t of the shift (MSB first)
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*/
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uint8_t gpio_util_shiftin(gpio_t data_pin, gpio_t clock_pin);
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#ifdef __cplusplus
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}
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#endif
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#endif /* PERIPH_GPIO_UTIL_H */
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/** @} */
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