mbed library sources
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Superseded
This library was superseded by mbed-dev - https://os.mbed.com/users/mbed_official/code/mbed-dev/.
Development branch of the mbed library sources. This library is kept in synch with the latest changes from the mbed SDK and it is not guaranteed to work.
If you are looking for a stable and tested release, please import one of the official mbed library releases:
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common/SPI.cpp@185:e752b4ee7de1, 2014-05-09 (annotated)
- Committer:
- mbed_official
- Date:
- Fri May 09 14:00:08 2014 +0100
- Revision:
- 185:e752b4ee7de1
- Parent:
- 50:b08ceb75017d
- Child:
- 212:34d62c0b2af6
Synchronized with git revision c761a5e0a90087e87817c38ae4e3034675dacfde
Full URL: https://github.com/mbedmicro/mbed/commit/c761a5e0a90087e87817c38ae4e3034675dacfde/
Solve also the problem with the SetSysClock function not declared in
sleep.c
Conflicts:
libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F401RE/i2c_api.c
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
bogdanm | 13:0645d8841f51 | 1 | /* mbed Microcontroller Library |
bogdanm | 13:0645d8841f51 | 2 | * Copyright (c) 2006-2013 ARM Limited |
bogdanm | 13:0645d8841f51 | 3 | * |
bogdanm | 13:0645d8841f51 | 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
bogdanm | 13:0645d8841f51 | 5 | * you may not use this file except in compliance with the License. |
bogdanm | 13:0645d8841f51 | 6 | * You may obtain a copy of the License at |
bogdanm | 13:0645d8841f51 | 7 | * |
bogdanm | 13:0645d8841f51 | 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
bogdanm | 13:0645d8841f51 | 9 | * |
bogdanm | 13:0645d8841f51 | 10 | * Unless required by applicable law or agreed to in writing, software |
bogdanm | 13:0645d8841f51 | 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
bogdanm | 13:0645d8841f51 | 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
bogdanm | 13:0645d8841f51 | 13 | * See the License for the specific language governing permissions and |
bogdanm | 13:0645d8841f51 | 14 | * limitations under the License. |
bogdanm | 13:0645d8841f51 | 15 | */ |
bogdanm | 13:0645d8841f51 | 16 | #include "SPI.h" |
bogdanm | 13:0645d8841f51 | 17 | |
bogdanm | 13:0645d8841f51 | 18 | #if DEVICE_SPI |
bogdanm | 13:0645d8841f51 | 19 | |
bogdanm | 13:0645d8841f51 | 20 | namespace mbed { |
bogdanm | 13:0645d8841f51 | 21 | |
mbed_official | 50:b08ceb75017d | 22 | SPI::SPI(PinName mosi, PinName miso, PinName sclk, PinName _unused) { |
bogdanm | 13:0645d8841f51 | 23 | spi_init(&_spi, mosi, miso, sclk, NC); |
bogdanm | 13:0645d8841f51 | 24 | _bits = 8; |
bogdanm | 13:0645d8841f51 | 25 | _mode = 0; |
bogdanm | 13:0645d8841f51 | 26 | _hz = 1000000; |
bogdanm | 13:0645d8841f51 | 27 | spi_format(&_spi, _bits, _mode, 0); |
bogdanm | 13:0645d8841f51 | 28 | spi_frequency(&_spi, _hz); |
bogdanm | 13:0645d8841f51 | 29 | } |
bogdanm | 13:0645d8841f51 | 30 | |
bogdanm | 13:0645d8841f51 | 31 | void SPI::format(int bits, int mode) { |
bogdanm | 13:0645d8841f51 | 32 | _bits = bits; |
bogdanm | 13:0645d8841f51 | 33 | _mode = mode; |
bogdanm | 13:0645d8841f51 | 34 | SPI::_owner = NULL; // Not that elegant, but works. rmeyer |
bogdanm | 13:0645d8841f51 | 35 | aquire(); |
bogdanm | 13:0645d8841f51 | 36 | } |
bogdanm | 13:0645d8841f51 | 37 | |
bogdanm | 13:0645d8841f51 | 38 | void SPI::frequency(int hz) { |
bogdanm | 13:0645d8841f51 | 39 | _hz = hz; |
bogdanm | 13:0645d8841f51 | 40 | SPI::_owner = NULL; // Not that elegant, but works. rmeyer |
bogdanm | 13:0645d8841f51 | 41 | aquire(); |
bogdanm | 13:0645d8841f51 | 42 | } |
bogdanm | 13:0645d8841f51 | 43 | |
bogdanm | 13:0645d8841f51 | 44 | SPI* SPI::_owner = NULL; |
bogdanm | 13:0645d8841f51 | 45 | |
bogdanm | 13:0645d8841f51 | 46 | // ignore the fact there are multiple physical spis, and always update if it wasnt us last |
bogdanm | 13:0645d8841f51 | 47 | void SPI::aquire() { |
bogdanm | 13:0645d8841f51 | 48 | if (_owner != this) { |
bogdanm | 13:0645d8841f51 | 49 | spi_format(&_spi, _bits, _mode, 0); |
bogdanm | 13:0645d8841f51 | 50 | spi_frequency(&_spi, _hz); |
bogdanm | 13:0645d8841f51 | 51 | _owner = this; |
bogdanm | 13:0645d8841f51 | 52 | } |
bogdanm | 13:0645d8841f51 | 53 | } |
bogdanm | 13:0645d8841f51 | 54 | |
bogdanm | 13:0645d8841f51 | 55 | int SPI::write(int value) { |
bogdanm | 13:0645d8841f51 | 56 | aquire(); |
bogdanm | 13:0645d8841f51 | 57 | return spi_master_write(&_spi, value); |
bogdanm | 13:0645d8841f51 | 58 | } |
bogdanm | 13:0645d8841f51 | 59 | |
bogdanm | 13:0645d8841f51 | 60 | } // namespace mbed |
bogdanm | 13:0645d8841f51 | 61 | |
bogdanm | 13:0645d8841f51 | 62 | #endif |