Erste version der Software für der Prototyp
mbed-os/drivers/SPISlave.cpp@4:75df35ef4fb6, 2018-03-30 (annotated)
- Committer:
- borlanic
- Date:
- Fri Mar 30 14:07:05 2018 +0000
- Revision:
- 4:75df35ef4fb6
- Parent:
- 0:380207fcb5c1
commentar
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| borlanic | 0:380207fcb5c1 | 1 | /* mbed Microcontroller Library |
| borlanic | 0:380207fcb5c1 | 2 | * Copyright (c) 2006-2013 ARM Limited |
| borlanic | 0:380207fcb5c1 | 3 | * |
| borlanic | 0:380207fcb5c1 | 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| borlanic | 0:380207fcb5c1 | 5 | * you may not use this file except in compliance with the License. |
| borlanic | 0:380207fcb5c1 | 6 | * You may obtain a copy of the License at |
| borlanic | 0:380207fcb5c1 | 7 | * |
| borlanic | 0:380207fcb5c1 | 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| borlanic | 0:380207fcb5c1 | 9 | * |
| borlanic | 0:380207fcb5c1 | 10 | * Unless required by applicable law or agreed to in writing, software |
| borlanic | 0:380207fcb5c1 | 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| borlanic | 0:380207fcb5c1 | 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| borlanic | 0:380207fcb5c1 | 13 | * See the License for the specific language governing permissions and |
| borlanic | 0:380207fcb5c1 | 14 | * limitations under the License. |
| borlanic | 0:380207fcb5c1 | 15 | */ |
| borlanic | 0:380207fcb5c1 | 16 | #include "drivers/SPISlave.h" |
| borlanic | 0:380207fcb5c1 | 17 | |
| borlanic | 0:380207fcb5c1 | 18 | #if DEVICE_SPISLAVE |
| borlanic | 0:380207fcb5c1 | 19 | |
| borlanic | 0:380207fcb5c1 | 20 | namespace mbed { |
| borlanic | 0:380207fcb5c1 | 21 | |
| borlanic | 0:380207fcb5c1 | 22 | SPISlave::SPISlave(PinName mosi, PinName miso, PinName sclk, PinName ssel) : |
| borlanic | 0:380207fcb5c1 | 23 | _spi(), |
| borlanic | 0:380207fcb5c1 | 24 | _bits(8), |
| borlanic | 0:380207fcb5c1 | 25 | _mode(0), |
| borlanic | 0:380207fcb5c1 | 26 | _hz(1000000) |
| borlanic | 0:380207fcb5c1 | 27 | { |
| borlanic | 0:380207fcb5c1 | 28 | spi_init(&_spi, mosi, miso, sclk, ssel); |
| borlanic | 0:380207fcb5c1 | 29 | spi_format(&_spi, _bits, _mode, 1); |
| borlanic | 0:380207fcb5c1 | 30 | spi_frequency(&_spi, _hz); |
| borlanic | 0:380207fcb5c1 | 31 | } |
| borlanic | 0:380207fcb5c1 | 32 | |
| borlanic | 0:380207fcb5c1 | 33 | void SPISlave::format(int bits, int mode) { |
| borlanic | 0:380207fcb5c1 | 34 | _bits = bits; |
| borlanic | 0:380207fcb5c1 | 35 | _mode = mode; |
| borlanic | 0:380207fcb5c1 | 36 | spi_format(&_spi, _bits, _mode, 1); |
| borlanic | 0:380207fcb5c1 | 37 | } |
| borlanic | 0:380207fcb5c1 | 38 | |
| borlanic | 0:380207fcb5c1 | 39 | void SPISlave::frequency(int hz) { |
| borlanic | 0:380207fcb5c1 | 40 | _hz = hz; |
| borlanic | 0:380207fcb5c1 | 41 | spi_frequency(&_spi, _hz); |
| borlanic | 0:380207fcb5c1 | 42 | } |
| borlanic | 0:380207fcb5c1 | 43 | |
| borlanic | 0:380207fcb5c1 | 44 | int SPISlave::receive(void) { |
| borlanic | 0:380207fcb5c1 | 45 | return(spi_slave_receive(&_spi)); |
| borlanic | 0:380207fcb5c1 | 46 | } |
| borlanic | 0:380207fcb5c1 | 47 | |
| borlanic | 0:380207fcb5c1 | 48 | int SPISlave::read(void) { |
| borlanic | 0:380207fcb5c1 | 49 | return(spi_slave_read(&_spi)); |
| borlanic | 0:380207fcb5c1 | 50 | } |
| borlanic | 0:380207fcb5c1 | 51 | |
| borlanic | 0:380207fcb5c1 | 52 | void SPISlave::reply(int value) { |
| borlanic | 0:380207fcb5c1 | 53 | spi_slave_write(&_spi, value); |
| borlanic | 0:380207fcb5c1 | 54 | } |
| borlanic | 0:380207fcb5c1 | 55 | |
| borlanic | 0:380207fcb5c1 | 56 | } // namespace mbed |
| borlanic | 0:380207fcb5c1 | 57 | |
| borlanic | 0:380207fcb5c1 | 58 | #endif |