Thor Hall / mbed-dev_mbed_lib_v125

This fork captures the mbed lib v125 for ease of integration into older projects.

Fork of mbed-dev by mbed official

common/SPISlave.cpp@187:92cbb9eec47b, 2018-07-20 (annotated)

Committer:
apluscw
Date:
Fri Jul 20 21:24:42 2018 +0000
Revision:
187:92cbb9eec47b
Mbed library with source code from mbed lib v125. Posted to ease integration with some older projects.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
apluscw 187:92cbb9eec47b 1 /* mbed Microcontroller Library
apluscw 187:92cbb9eec47b 2 * Copyright (c) 2006-2013 ARM Limited
apluscw 187:92cbb9eec47b 3 *
apluscw 187:92cbb9eec47b 4 * Licensed under the Apache License, Version 2.0 (the "License");
apluscw 187:92cbb9eec47b 5 * you may not use this file except in compliance with the License.
apluscw 187:92cbb9eec47b 6 * You may obtain a copy of the License at
apluscw 187:92cbb9eec47b 7 *
apluscw 187:92cbb9eec47b 8 * http://www.apache.org/licenses/LICENSE-2.0
apluscw 187:92cbb9eec47b 9 *
apluscw 187:92cbb9eec47b 10 * Unless required by applicable law or agreed to in writing, software
apluscw 187:92cbb9eec47b 11 * distributed under the License is distributed on an "AS IS" BASIS,
apluscw 187:92cbb9eec47b 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
apluscw 187:92cbb9eec47b 13 * See the License for the specific language governing permissions and
apluscw 187:92cbb9eec47b 14 * limitations under the License.
apluscw 187:92cbb9eec47b 15 */
apluscw 187:92cbb9eec47b 16 #include "SPISlave.h"
apluscw 187:92cbb9eec47b 17
apluscw 187:92cbb9eec47b 18 #if DEVICE_SPISLAVE
apluscw 187:92cbb9eec47b 19
apluscw 187:92cbb9eec47b 20 namespace mbed {
apluscw 187:92cbb9eec47b 21
apluscw 187:92cbb9eec47b 22 SPISlave::SPISlave(PinName mosi, PinName miso, PinName sclk, PinName ssel) :
apluscw 187:92cbb9eec47b 23 _spi(),
apluscw 187:92cbb9eec47b 24 _bits(8),
apluscw 187:92cbb9eec47b 25 _mode(0),
apluscw 187:92cbb9eec47b 26 _hz(1000000)
apluscw 187:92cbb9eec47b 27 {
apluscw 187:92cbb9eec47b 28 spi_init(&_spi, mosi, miso, sclk, ssel);
apluscw 187:92cbb9eec47b 29 spi_format(&_spi, _bits, _mode, 1);
apluscw 187:92cbb9eec47b 30 spi_frequency(&_spi, _hz);
apluscw 187:92cbb9eec47b 31 }
apluscw 187:92cbb9eec47b 32
apluscw 187:92cbb9eec47b 33 void SPISlave::format(int bits, int mode) {
apluscw 187:92cbb9eec47b 34 _bits = bits;
apluscw 187:92cbb9eec47b 35 _mode = mode;
apluscw 187:92cbb9eec47b 36 spi_format(&_spi, _bits, _mode, 1);
apluscw 187:92cbb9eec47b 37 }
apluscw 187:92cbb9eec47b 38
apluscw 187:92cbb9eec47b 39 void SPISlave::frequency(int hz) {
apluscw 187:92cbb9eec47b 40 _hz = hz;
apluscw 187:92cbb9eec47b 41 spi_frequency(&_spi, _hz);
apluscw 187:92cbb9eec47b 42 }
apluscw 187:92cbb9eec47b 43
apluscw 187:92cbb9eec47b 44 int SPISlave::receive(void) {
apluscw 187:92cbb9eec47b 45 return(spi_slave_receive(&_spi));
apluscw 187:92cbb9eec47b 46 }
apluscw 187:92cbb9eec47b 47
apluscw 187:92cbb9eec47b 48 int SPISlave::read(void) {
apluscw 187:92cbb9eec47b 49 return(spi_slave_read(&_spi));
apluscw 187:92cbb9eec47b 50 }
apluscw 187:92cbb9eec47b 51
apluscw 187:92cbb9eec47b 52 void SPISlave::reply(int value) {
apluscw 187:92cbb9eec47b 53 spi_slave_write(&_spi, value);
apluscw 187:92cbb9eec47b 54 }
apluscw 187:92cbb9eec47b 55
apluscw 187:92cbb9eec47b 56 } // namespace mbed
apluscw 187:92cbb9eec47b 57
apluscw 187:92cbb9eec47b 58 #endif