From bf4fc3bf6bc02342ae508b52fb4515d361d626f6 Mon Sep 17 00:00:00 2001 From: Perry Hung Date: Sat, 24 Apr 2010 03:16:35 -0400 Subject: Upper level libmaple interface Added a C++ HardwareSPI class to access the SPI interface. See HardwareSPI.cpp and HardwareSPI.h for documentation. --- core/comm/HardwareSPI.h | 57 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 57 insertions(+) create mode 100644 core/comm/HardwareSPI.h (limited to 'core/comm/HardwareSPI.h') diff --git a/core/comm/HardwareSPI.h b/core/comm/HardwareSPI.h new file mode 100644 index 0000000..b974334 --- /dev/null +++ b/core/comm/HardwareSPI.h @@ -0,0 +1,57 @@ +/* ***************************************************************************** + * The MIT License + * + * Copyright (c) 2010 Perry Hung. + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + * ****************************************************************************/ + +/** + * @brief HardwareSPI definitions + */ + +#ifndef _HARDWARESPI_H_ +#define _HARDWARESPI_H_ + +typedef enum SPIFrequency { + SPI_18MHZ = 0, + SPI_9MHZ = 1, + SPI_4_5MHZ = 2, + SPI_2_25MHZ = 3, + SPI_1_125MHZ = 4, + SPI_562_500KHZ = 5, + SPI_281_250KHZ = 6, + SPI_140_625KHZ = 7, + MAX_SPI_FREQS = 8, +} SPIFrequency; + +class HardwareSPI { + private: + uint32 spi_num; + + public: + HardwareSPI(uint32 spi_num); + void begin(void); + void begin(SPIFrequency freq, uint32 endianness, uint32 mode); + void send(uint8 data); + uint8 recv(void); +}; + +#endif + -- cgit v1.2.3