不韋 呂 / F746_AcousticEffector_MIC

Audio singal input and output example for DISCO-F746. Input: MEMS mic, Output: CN10 OUT, Acoustic effect: echo and frequency shift. DISCO-F746 によるオーディオ信号入出力．入力：MEMS マイク，出力：CN10 OUT，音響効果：エコー，周波数変換．

Dependencies:   F746_GUI F746_SAI_IO

mbed_src_STM32F7/api/SPISlave.h@6:38f7dce055d0, 2016-10-02 (annotated)

Committer:
MikamiUitOpen
Date:
Sun Oct 02 10:44:58 2016 +0000
Revision:
6:38f7dce055d0
7

Who changed what in which revision?

UserRevisionLine numberNew contents of line
MikamiUitOpen 6:38f7dce055d0 1 /* mbed Microcontroller Library
MikamiUitOpen 6:38f7dce055d0 2 * Copyright (c) 2006-2013 ARM Limited
MikamiUitOpen 6:38f7dce055d0 3 *
MikamiUitOpen 6:38f7dce055d0 4 * Licensed under the Apache License, Version 2.0 (the "License");
MikamiUitOpen 6:38f7dce055d0 5 * you may not use this file except in compliance with the License.
MikamiUitOpen 6:38f7dce055d0 6 * You may obtain a copy of the License at
MikamiUitOpen 6:38f7dce055d0 7 *
MikamiUitOpen 6:38f7dce055d0 8 * http://www.apache.org/licenses/LICENSE-2.0
MikamiUitOpen 6:38f7dce055d0 9 *
MikamiUitOpen 6:38f7dce055d0 10 * Unless required by applicable law or agreed to in writing, software
MikamiUitOpen 6:38f7dce055d0 11 * distributed under the License is distributed on an "AS IS" BASIS,
MikamiUitOpen 6:38f7dce055d0 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
MikamiUitOpen 6:38f7dce055d0 13 * See the License for the specific language governing permissions and
MikamiUitOpen 6:38f7dce055d0 14 * limitations under the License.
MikamiUitOpen 6:38f7dce055d0 15 */
MikamiUitOpen 6:38f7dce055d0 16 #ifndef MBED_SPISLAVE_H
MikamiUitOpen 6:38f7dce055d0 17 #define MBED_SPISLAVE_H
MikamiUitOpen 6:38f7dce055d0 18
MikamiUitOpen 6:38f7dce055d0 19 #include "platform.h"
MikamiUitOpen 6:38f7dce055d0 20
MikamiUitOpen 6:38f7dce055d0 21 #if DEVICE_SPISLAVE
MikamiUitOpen 6:38f7dce055d0 22
MikamiUitOpen 6:38f7dce055d0 23 #include "spi_api.h"
MikamiUitOpen 6:38f7dce055d0 24
MikamiUitOpen 6:38f7dce055d0 25 namespace mbed {
MikamiUitOpen 6:38f7dce055d0 26
MikamiUitOpen 6:38f7dce055d0 27 /** A SPI slave, used for communicating with a SPI Master device
MikamiUitOpen 6:38f7dce055d0 28 *
MikamiUitOpen 6:38f7dce055d0 29 * The default format is set to 8-bits, mode 0, and a clock frequency of 1MHz
MikamiUitOpen 6:38f7dce055d0 30 *
MikamiUitOpen 6:38f7dce055d0 31 * Example:
MikamiUitOpen 6:38f7dce055d0 32 * @code
MikamiUitOpen 6:38f7dce055d0 33 * // Reply to a SPI master as slave
MikamiUitOpen 6:38f7dce055d0 34 *
MikamiUitOpen 6:38f7dce055d0 35 * #include "mbed.h"
MikamiUitOpen 6:38f7dce055d0 36 *
MikamiUitOpen 6:38f7dce055d0 37 * SPISlave device(p5, p6, p7, p8); // mosi, miso, sclk, ssel
MikamiUitOpen 6:38f7dce055d0 38 *
MikamiUitOpen 6:38f7dce055d0 39 * int main() {
MikamiUitOpen 6:38f7dce055d0 40 * device.reply(0x00); // Prime SPI with first reply
MikamiUitOpen 6:38f7dce055d0 41 * while(1) {
MikamiUitOpen 6:38f7dce055d0 42 * if(device.receive()) {
MikamiUitOpen 6:38f7dce055d0 43 * int v = device.read(); // Read byte from master
MikamiUitOpen 6:38f7dce055d0 44 * v = (v + 1) % 0x100; // Add one to it, modulo 256
MikamiUitOpen 6:38f7dce055d0 45 * device.reply(v); // Make this the next reply
MikamiUitOpen 6:38f7dce055d0 46 * }
MikamiUitOpen 6:38f7dce055d0 47 * }
MikamiUitOpen 6:38f7dce055d0 48 * }
MikamiUitOpen 6:38f7dce055d0 49 * @endcode
MikamiUitOpen 6:38f7dce055d0 50 */
MikamiUitOpen 6:38f7dce055d0 51 class SPISlave {
MikamiUitOpen 6:38f7dce055d0 52
MikamiUitOpen 6:38f7dce055d0 53 public:
MikamiUitOpen 6:38f7dce055d0 54
MikamiUitOpen 6:38f7dce055d0 55 /** Create a SPI slave connected to the specified pins
MikamiUitOpen 6:38f7dce055d0 56 *
MikamiUitOpen 6:38f7dce055d0 57 * mosi or miso can be specfied as NC if not used
MikamiUitOpen 6:38f7dce055d0 58 *
MikamiUitOpen 6:38f7dce055d0 59 * @param mosi SPI Master Out, Slave In pin
MikamiUitOpen 6:38f7dce055d0 60 * @param miso SPI Master In, Slave Out pin
MikamiUitOpen 6:38f7dce055d0 61 * @param sclk SPI Clock pin
MikamiUitOpen 6:38f7dce055d0 62 * @param ssel SPI chip select pin
MikamiUitOpen 6:38f7dce055d0 63 */
MikamiUitOpen 6:38f7dce055d0 64 SPISlave(PinName mosi, PinName miso, PinName sclk, PinName ssel);
MikamiUitOpen 6:38f7dce055d0 65
MikamiUitOpen 6:38f7dce055d0 66 /** Configure the data transmission format
MikamiUitOpen 6:38f7dce055d0 67 *
MikamiUitOpen 6:38f7dce055d0 68 * @param bits Number of bits per SPI frame (4 - 16)
MikamiUitOpen 6:38f7dce055d0 69 * @param mode Clock polarity and phase mode (0 - 3)
MikamiUitOpen 6:38f7dce055d0 70 *
MikamiUitOpen 6:38f7dce055d0 71 * @code
MikamiUitOpen 6:38f7dce055d0 72 * mode | POL PHA
MikamiUitOpen 6:38f7dce055d0 73 * -----+--------
MikamiUitOpen 6:38f7dce055d0 74 * 0 | 0 0
MikamiUitOpen 6:38f7dce055d0 75 * 1 | 0 1
MikamiUitOpen 6:38f7dce055d0 76 * 2 | 1 0
MikamiUitOpen 6:38f7dce055d0 77 * 3 | 1 1
MikamiUitOpen 6:38f7dce055d0 78 * @endcode
MikamiUitOpen 6:38f7dce055d0 79 */
MikamiUitOpen 6:38f7dce055d0 80 void format(int bits, int mode = 0);
MikamiUitOpen 6:38f7dce055d0 81
MikamiUitOpen 6:38f7dce055d0 82 /** Set the spi bus clock frequency
MikamiUitOpen 6:38f7dce055d0 83 *
MikamiUitOpen 6:38f7dce055d0 84 * @param hz SCLK frequency in hz (default = 1MHz)
MikamiUitOpen 6:38f7dce055d0 85 */
MikamiUitOpen 6:38f7dce055d0 86 void frequency(int hz = 1000000);
MikamiUitOpen 6:38f7dce055d0 87
MikamiUitOpen 6:38f7dce055d0 88 /** Polls the SPI to see if data has been received
MikamiUitOpen 6:38f7dce055d0 89 *
MikamiUitOpen 6:38f7dce055d0 90 * @returns
MikamiUitOpen 6:38f7dce055d0 91 * 0 if no data,
MikamiUitOpen 6:38f7dce055d0 92 * 1 otherwise
MikamiUitOpen 6:38f7dce055d0 93 */
MikamiUitOpen 6:38f7dce055d0 94 int receive(void);
MikamiUitOpen 6:38f7dce055d0 95
MikamiUitOpen 6:38f7dce055d0 96 /** Retrieve data from receive buffer as slave
MikamiUitOpen 6:38f7dce055d0 97 *
MikamiUitOpen 6:38f7dce055d0 98 * @returns
MikamiUitOpen 6:38f7dce055d0 99 * the data in the receive buffer
MikamiUitOpen 6:38f7dce055d0 100 */
MikamiUitOpen 6:38f7dce055d0 101 int read(void);
MikamiUitOpen 6:38f7dce055d0 102
MikamiUitOpen 6:38f7dce055d0 103 /** Fill the transmission buffer with the value to be written out
MikamiUitOpen 6:38f7dce055d0 104 * as slave on the next received message from the master.
MikamiUitOpen 6:38f7dce055d0 105 *
MikamiUitOpen 6:38f7dce055d0 106 * @param value the data to be transmitted next
MikamiUitOpen 6:38f7dce055d0 107 */
MikamiUitOpen 6:38f7dce055d0 108 void reply(int value);
MikamiUitOpen 6:38f7dce055d0 109
MikamiUitOpen 6:38f7dce055d0 110 protected:
MikamiUitOpen 6:38f7dce055d0 111 spi_t _spi;
MikamiUitOpen 6:38f7dce055d0 112
MikamiUitOpen 6:38f7dce055d0 113 int _bits;
MikamiUitOpen 6:38f7dce055d0 114 int _mode;
MikamiUitOpen 6:38f7dce055d0 115 int _hz;
MikamiUitOpen 6:38f7dce055d0 116 };
MikamiUitOpen 6:38f7dce055d0 117
MikamiUitOpen 6:38f7dce055d0 118 } // namespace mbed
MikamiUitOpen 6:38f7dce055d0 119
MikamiUitOpen 6:38f7dce055d0 120 #endif
MikamiUitOpen 6:38f7dce055d0 121
MikamiUitOpen 6:38f7dce055d0 122 #endif