Modified mbed library sources only for STM32F030K6, LQFP32 (0.8mm pitch) package, 32K Flash, 4K SRAM. Compiler target: Nucleo 32F030R8
Fork of mbed-src by
cpp/SPI.h@0:fd0d7bdfcdc2, 2012-11-20 (annotated)
- Committer:
- mbed_official
- Date:
- Tue Nov 20 17:24:08 2012 +0000
- Revision:
- 0:fd0d7bdfcdc2
- Child:
- 2:143cac498751
mbed sources
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
mbed_official | 0:fd0d7bdfcdc2 | 1 | /* mbed Microcontroller Library |
mbed_official | 0:fd0d7bdfcdc2 | 2 | * Copyright (c) 2006-2012 ARM Limited |
mbed_official | 0:fd0d7bdfcdc2 | 3 | * |
mbed_official | 0:fd0d7bdfcdc2 | 4 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
mbed_official | 0:fd0d7bdfcdc2 | 5 | * of this software and associated documentation files (the "Software"), to deal |
mbed_official | 0:fd0d7bdfcdc2 | 6 | * in the Software without restriction, including without limitation the rights |
mbed_official | 0:fd0d7bdfcdc2 | 7 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
mbed_official | 0:fd0d7bdfcdc2 | 8 | * copies of the Software, and to permit persons to whom the Software is |
mbed_official | 0:fd0d7bdfcdc2 | 9 | * furnished to do so, subject to the following conditions: |
mbed_official | 0:fd0d7bdfcdc2 | 10 | * |
mbed_official | 0:fd0d7bdfcdc2 | 11 | * The above copyright notice and this permission notice shall be included in |
mbed_official | 0:fd0d7bdfcdc2 | 12 | * all copies or substantial portions of the Software. |
mbed_official | 0:fd0d7bdfcdc2 | 13 | * |
mbed_official | 0:fd0d7bdfcdc2 | 14 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
mbed_official | 0:fd0d7bdfcdc2 | 15 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
mbed_official | 0:fd0d7bdfcdc2 | 16 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
mbed_official | 0:fd0d7bdfcdc2 | 17 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
mbed_official | 0:fd0d7bdfcdc2 | 18 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
mbed_official | 0:fd0d7bdfcdc2 | 19 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
mbed_official | 0:fd0d7bdfcdc2 | 20 | * SOFTWARE. |
mbed_official | 0:fd0d7bdfcdc2 | 21 | */ |
mbed_official | 0:fd0d7bdfcdc2 | 22 | #ifndef MBED_SPI_H |
mbed_official | 0:fd0d7bdfcdc2 | 23 | #define MBED_SPI_H |
mbed_official | 0:fd0d7bdfcdc2 | 24 | |
mbed_official | 0:fd0d7bdfcdc2 | 25 | #include "platform.h" |
mbed_official | 0:fd0d7bdfcdc2 | 26 | |
mbed_official | 0:fd0d7bdfcdc2 | 27 | #if DEVICE_SPI |
mbed_official | 0:fd0d7bdfcdc2 | 28 | |
mbed_official | 0:fd0d7bdfcdc2 | 29 | #include "spi_api.h" |
mbed_official | 0:fd0d7bdfcdc2 | 30 | |
mbed_official | 0:fd0d7bdfcdc2 | 31 | namespace mbed { |
mbed_official | 0:fd0d7bdfcdc2 | 32 | |
mbed_official | 0:fd0d7bdfcdc2 | 33 | /** A SPI Master, used for communicating with SPI slave devices |
mbed_official | 0:fd0d7bdfcdc2 | 34 | * |
mbed_official | 0:fd0d7bdfcdc2 | 35 | * The default format is set to 8-bits, mode 0, and a clock frequency of 1MHz |
mbed_official | 0:fd0d7bdfcdc2 | 36 | * |
mbed_official | 0:fd0d7bdfcdc2 | 37 | * Most SPI devices will also require Chip Select and Reset signals. These |
mbed_official | 0:fd0d7bdfcdc2 | 38 | * can be controlled using <DigitalOut> pins |
mbed_official | 0:fd0d7bdfcdc2 | 39 | * |
mbed_official | 0:fd0d7bdfcdc2 | 40 | * Example: |
mbed_official | 0:fd0d7bdfcdc2 | 41 | * @code |
mbed_official | 0:fd0d7bdfcdc2 | 42 | * // Send a byte to a SPI slave, and record the response |
mbed_official | 0:fd0d7bdfcdc2 | 43 | * |
mbed_official | 0:fd0d7bdfcdc2 | 44 | * #include "mbed.h" |
mbed_official | 0:fd0d7bdfcdc2 | 45 | * |
mbed_official | 0:fd0d7bdfcdc2 | 46 | * SPI device(p5, p6, p7); // mosi, miso, sclk |
mbed_official | 0:fd0d7bdfcdc2 | 47 | * |
mbed_official | 0:fd0d7bdfcdc2 | 48 | * int main() { |
mbed_official | 0:fd0d7bdfcdc2 | 49 | * int response = device.write(0xFF); |
mbed_official | 0:fd0d7bdfcdc2 | 50 | * } |
mbed_official | 0:fd0d7bdfcdc2 | 51 | * @endcode |
mbed_official | 0:fd0d7bdfcdc2 | 52 | */ |
mbed_official | 0:fd0d7bdfcdc2 | 53 | class SPI { |
mbed_official | 0:fd0d7bdfcdc2 | 54 | |
mbed_official | 0:fd0d7bdfcdc2 | 55 | public: |
mbed_official | 0:fd0d7bdfcdc2 | 56 | |
mbed_official | 0:fd0d7bdfcdc2 | 57 | /** Create a SPI master connected to the specified pins |
mbed_official | 0:fd0d7bdfcdc2 | 58 | * |
mbed_official | 0:fd0d7bdfcdc2 | 59 | * Pin Options: |
mbed_official | 0:fd0d7bdfcdc2 | 60 | * (5, 6, 7) or (11, 12, 13) |
mbed_official | 0:fd0d7bdfcdc2 | 61 | * |
mbed_official | 0:fd0d7bdfcdc2 | 62 | * mosi or miso can be specfied as NC if not used |
mbed_official | 0:fd0d7bdfcdc2 | 63 | * |
mbed_official | 0:fd0d7bdfcdc2 | 64 | * @param mosi SPI Master Out, Slave In pin |
mbed_official | 0:fd0d7bdfcdc2 | 65 | * @param miso SPI Master In, Slave Out pin |
mbed_official | 0:fd0d7bdfcdc2 | 66 | * @param sclk SPI Clock pin |
mbed_official | 0:fd0d7bdfcdc2 | 67 | */ |
mbed_official | 0:fd0d7bdfcdc2 | 68 | SPI(PinName mosi, PinName miso, PinName sclk); |
mbed_official | 0:fd0d7bdfcdc2 | 69 | |
mbed_official | 0:fd0d7bdfcdc2 | 70 | /** Configure the data transmission format |
mbed_official | 0:fd0d7bdfcdc2 | 71 | * |
mbed_official | 0:fd0d7bdfcdc2 | 72 | * @param bits Number of bits per SPI frame (4 - 16) |
mbed_official | 0:fd0d7bdfcdc2 | 73 | * @param mode Clock polarity and phase mode (0 - 3) |
mbed_official | 0:fd0d7bdfcdc2 | 74 | * |
mbed_official | 0:fd0d7bdfcdc2 | 75 | * @code |
mbed_official | 0:fd0d7bdfcdc2 | 76 | * mode | POL PHA |
mbed_official | 0:fd0d7bdfcdc2 | 77 | * -----+-------- |
mbed_official | 0:fd0d7bdfcdc2 | 78 | * 0 | 0 0 |
mbed_official | 0:fd0d7bdfcdc2 | 79 | * 1 | 0 1 |
mbed_official | 0:fd0d7bdfcdc2 | 80 | * 2 | 1 0 |
mbed_official | 0:fd0d7bdfcdc2 | 81 | * 3 | 1 1 |
mbed_official | 0:fd0d7bdfcdc2 | 82 | * @endcode |
mbed_official | 0:fd0d7bdfcdc2 | 83 | */ |
mbed_official | 0:fd0d7bdfcdc2 | 84 | void format(int bits, int mode = 0); |
mbed_official | 0:fd0d7bdfcdc2 | 85 | |
mbed_official | 0:fd0d7bdfcdc2 | 86 | /** Set the spi bus clock frequency |
mbed_official | 0:fd0d7bdfcdc2 | 87 | * |
mbed_official | 0:fd0d7bdfcdc2 | 88 | * @param hz SCLK frequency in hz (default = 1MHz) |
mbed_official | 0:fd0d7bdfcdc2 | 89 | */ |
mbed_official | 0:fd0d7bdfcdc2 | 90 | void frequency(int hz = 1000000); |
mbed_official | 0:fd0d7bdfcdc2 | 91 | |
mbed_official | 0:fd0d7bdfcdc2 | 92 | /** Write to the SPI Slave and return the response |
mbed_official | 0:fd0d7bdfcdc2 | 93 | * |
mbed_official | 0:fd0d7bdfcdc2 | 94 | * @param value Data to be sent to the SPI slave |
mbed_official | 0:fd0d7bdfcdc2 | 95 | * |
mbed_official | 0:fd0d7bdfcdc2 | 96 | * @returns |
mbed_official | 0:fd0d7bdfcdc2 | 97 | * Response from the SPI slave |
mbed_official | 0:fd0d7bdfcdc2 | 98 | */ |
mbed_official | 0:fd0d7bdfcdc2 | 99 | virtual int write(int value); |
mbed_official | 0:fd0d7bdfcdc2 | 100 | |
mbed_official | 0:fd0d7bdfcdc2 | 101 | protected: |
mbed_official | 0:fd0d7bdfcdc2 | 102 | spi_t _spi; |
mbed_official | 0:fd0d7bdfcdc2 | 103 | |
mbed_official | 0:fd0d7bdfcdc2 | 104 | void aquire(void); |
mbed_official | 0:fd0d7bdfcdc2 | 105 | static SPI *_owner; |
mbed_official | 0:fd0d7bdfcdc2 | 106 | int _bits; |
mbed_official | 0:fd0d7bdfcdc2 | 107 | int _mode; |
mbed_official | 0:fd0d7bdfcdc2 | 108 | int _hz; |
mbed_official | 0:fd0d7bdfcdc2 | 109 | }; |
mbed_official | 0:fd0d7bdfcdc2 | 110 | |
mbed_official | 0:fd0d7bdfcdc2 | 111 | } // namespace mbed |
mbed_official | 0:fd0d7bdfcdc2 | 112 | |
mbed_official | 0:fd0d7bdfcdc2 | 113 | #endif |
mbed_official | 0:fd0d7bdfcdc2 | 114 | |
mbed_official | 0:fd0d7bdfcdc2 | 115 | #endif |