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/* * Copyright 2020 Birte Kristina Friesel * * SPDX-License-Identifier: BSD-2-Clause */ #ifndef SPI_H #define SPI_H class SPI { private: SPI(const SPI ©); public: SPI () {} signed char setup(); signed char xmit( unsigned char tx_len, unsigned char *tx_buf, unsigned char rx_len, unsigned char *rx_buf); }; extern SPI spi; #endif