Gan likun / mbed-dev

00

drivers/SPISlave.cpp@0:13413ea9a877, 2022-06-12 (annotated)

Committer:
ganlikun
Date:
Sun Jun 12 14:02:44 2022 +0000
Revision:
0:13413ea9a877
00

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ganlikun 0:13413ea9a877 1 /* mbed Microcontroller Library
ganlikun 0:13413ea9a877 2 * Copyright (c) 2006-2013 ARM Limited
ganlikun 0:13413ea9a877 3 *
ganlikun 0:13413ea9a877 4 * Licensed under the Apache License, Version 2.0 (the "License");
ganlikun 0:13413ea9a877 5 * you may not use this file except in compliance with the License.
ganlikun 0:13413ea9a877 6 * You may obtain a copy of the License at
ganlikun 0:13413ea9a877 7 *
ganlikun 0:13413ea9a877 8 * http://www.apache.org/licenses/LICENSE-2.0
ganlikun 0:13413ea9a877 9 *
ganlikun 0:13413ea9a877 10 * Unless required by applicable law or agreed to in writing, software
ganlikun 0:13413ea9a877 11 * distributed under the License is distributed on an "AS IS" BASIS,
ganlikun 0:13413ea9a877 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
ganlikun 0:13413ea9a877 13 * See the License for the specific language governing permissions and
ganlikun 0:13413ea9a877 14 * limitations under the License.
ganlikun 0:13413ea9a877 15 */
ganlikun 0:13413ea9a877 16 #include "drivers/SPISlave.h"
ganlikun 0:13413ea9a877 17
ganlikun 0:13413ea9a877 18 #if DEVICE_SPISLAVE
ganlikun 0:13413ea9a877 19
ganlikun 0:13413ea9a877 20 namespace mbed {
ganlikun 0:13413ea9a877 21
ganlikun 0:13413ea9a877 22 SPISlave::SPISlave(PinName mosi, PinName miso, PinName sclk, PinName ssel) :
ganlikun 0:13413ea9a877 23 _spi(),
ganlikun 0:13413ea9a877 24 _bits(8),
ganlikun 0:13413ea9a877 25 _mode(0),
ganlikun 0:13413ea9a877 26 _hz(1000000)
ganlikun 0:13413ea9a877 27 {
ganlikun 0:13413ea9a877 28 spi_init(&_spi, mosi, miso, sclk, ssel);
ganlikun 0:13413ea9a877 29 spi_format(&_spi, _bits, _mode, 1);
ganlikun 0:13413ea9a877 30 spi_frequency(&_spi, _hz);
ganlikun 0:13413ea9a877 31 }
ganlikun 0:13413ea9a877 32
ganlikun 0:13413ea9a877 33 void SPISlave::format(int bits, int mode) {
ganlikun 0:13413ea9a877 34 _bits = bits;
ganlikun 0:13413ea9a877 35 _mode = mode;
ganlikun 0:13413ea9a877 36 spi_format(&_spi, _bits, _mode, 1);
ganlikun 0:13413ea9a877 37 }
ganlikun 0:13413ea9a877 38
ganlikun 0:13413ea9a877 39 void SPISlave::frequency(int hz) {
ganlikun 0:13413ea9a877 40 _hz = hz;
ganlikun 0:13413ea9a877 41 spi_frequency(&_spi, _hz);
ganlikun 0:13413ea9a877 42 }
ganlikun 0:13413ea9a877 43
ganlikun 0:13413ea9a877 44 int SPISlave::receive(void) {
ganlikun 0:13413ea9a877 45 return(spi_slave_receive(&_spi));
ganlikun 0:13413ea9a877 46 }
ganlikun 0:13413ea9a877 47
ganlikun 0:13413ea9a877 48 int SPISlave::read(void) {
ganlikun 0:13413ea9a877 49 return(spi_slave_read(&_spi));
ganlikun 0:13413ea9a877 50 }
ganlikun 0:13413ea9a877 51
ganlikun 0:13413ea9a877 52 void SPISlave::reply(int value) {
ganlikun 0:13413ea9a877 53 spi_slave_write(&_spi, value);
ganlikun 0:13413ea9a877 54 }
ganlikun 0:13413ea9a877 55
ganlikun 0:13413ea9a877 56 } // namespace mbed
ganlikun 0:13413ea9a877 57
ganlikun 0:13413ea9a877 58 #endif