mbed library sources. Supersedes mbed-src.

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Show/hide line numbers SPISlave.cpp Source File

SPISlave.cpp

00001 /* mbed Microcontroller Library
00002  * Copyright (c) 2006-2013 ARM Limited
00003  * SPDX-License-Identifier: Apache-2.0
00004  *
00005  * Licensed under the Apache License, Version 2.0 (the "License");
00006  * you may not use this file except in compliance with the License.
00007  * You may obtain a copy of the License at
00008  *
00009  *     http://www.apache.org/licenses/LICENSE-2.0
00010  *
00011  * Unless required by applicable law or agreed to in writing, software
00012  * distributed under the License is distributed on an "AS IS" BASIS,
00013  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00014  * See the License for the specific language governing permissions and
00015  * limitations under the License.
00016  */
00017 #include "drivers/SPISlave.h"
00018 
00019 #if DEVICE_SPISLAVE
00020 
00021 namespace mbed {
00022 
00023 SPISlave::SPISlave(PinName mosi, PinName miso, PinName sclk, PinName ssel) :
00024     _spi(),
00025     _bits(8),
00026     _mode(0),
00027     _hz(1000000)
00028 {
00029     spi_init(&_spi, mosi, miso, sclk, ssel);
00030     spi_format(&_spi, _bits, _mode, 1);
00031     spi_frequency(&_spi, _hz);
00032 }
00033 
00034 void SPISlave::format(int bits, int mode)
00035 {
00036     _bits = bits;
00037     _mode = mode;
00038     spi_format(&_spi, _bits, _mode, 1);
00039 }
00040 
00041 void SPISlave::frequency(int hz)
00042 {
00043     _hz = hz;
00044     spi_frequency(&_spi, _hz);
00045 }
00046 
00047 int SPISlave::receive(void)
00048 {
00049     return (spi_slave_receive(&_spi));
00050 }
00051 
00052 int SPISlave::read(void)
00053 {
00054     return (spi_slave_read(&_spi));
00055 }
00056 
00057 void SPISlave::reply(int value)
00058 {
00059     spi_slave_write(&_spi, value);
00060 }
00061 
00062 } // namespace mbed
00063 
00064 #endif