mbed-os/libraries/mbed/common/SPISlave.cpp

57 lines
1.3 KiB
C++

/* mbed Microcontroller Library
* Copyright (c) 2006-2013 ARM Limited
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "SPISlave.h"
#if DEVICE_SPISLAVE
namespace mbed {
SPISlave::SPISlave(PinName mosi, PinName miso, PinName sclk, PinName ssel) {
spi_init(&_spi, mosi, miso, sclk, ssel);
_bits = 8;
_mode = 0;
_hz = 1000000;
spi_format(&_spi, _bits, _mode, 1);
spi_frequency(&_spi, _hz);
}
void SPISlave::format(int bits, int mode) {
_bits = bits;
_mode = mode;
spi_format(&_spi, _bits, _mode, 1);
}
void SPISlave::frequency(int hz) {
_hz = hz;
spi_frequency(&_spi, _hz);
}
int SPISlave::receive(void) {
return(spi_slave_receive(&_spi));
}
int SPISlave::read(void) {
return(spi_slave_read(&_spi));
}
void SPISlave::reply(int value) {
spi_slave_write(&_spi, value);
}
} // namespace mbed
#endif