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/I2C.h@10:56f2f01df983, 2017-04-10 (annotated)

Committer:
MikamiUitOpen
Date:
Mon Apr 10 13:44:13 2017 +0000
Revision:
10:56f2f01df983
Parent:
6:38f7dce055d0 
11

Who changed what in which revision?

UserRevisionLine numberNew contents of line
MikamiUitOpen 6:38f7dce055d0 1 /* mbed Microcontroller Library
MikamiUitOpen 6:38f7dce055d0 2 * Copyright (c) 2006-2015 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_I2C_H
MikamiUitOpen 6:38f7dce055d0 17 #define MBED_I2C_H
MikamiUitOpen 6:38f7dce055d0 18
MikamiUitOpen 6:38f7dce055d0 19 #include "platform.h"
MikamiUitOpen 6:38f7dce055d0 20
MikamiUitOpen 6:38f7dce055d0 21 #if DEVICE_I2C
MikamiUitOpen 6:38f7dce055d0 22
MikamiUitOpen 6:38f7dce055d0 23 #include "i2c_api.h"
MikamiUitOpen 6:38f7dce055d0 24
MikamiUitOpen 6:38f7dce055d0 25 #if DEVICE_I2C_ASYNCH
MikamiUitOpen 6:38f7dce055d0 26 #include "CThunk.h"
MikamiUitOpen 6:38f7dce055d0 27 #include "dma_api.h"
MikamiUitOpen 6:38f7dce055d0 28 #include "FunctionPointer.h"
MikamiUitOpen 6:38f7dce055d0 29 #endif
MikamiUitOpen 6:38f7dce055d0 30
MikamiUitOpen 6:38f7dce055d0 31 namespace mbed {
MikamiUitOpen 6:38f7dce055d0 32
MikamiUitOpen 6:38f7dce055d0 33 /** An I2C Master, used for communicating with I2C slave devices
MikamiUitOpen 6:38f7dce055d0 34 *
MikamiUitOpen 6:38f7dce055d0 35 * Example:
MikamiUitOpen 6:38f7dce055d0 36 * @code
MikamiUitOpen 6:38f7dce055d0 37 * // Read from I2C slave at address 0x62
MikamiUitOpen 6:38f7dce055d0 38 *
MikamiUitOpen 6:38f7dce055d0 39 * #include "mbed.h"
MikamiUitOpen 6:38f7dce055d0 40 *
MikamiUitOpen 6:38f7dce055d0 41 * I2C i2c(p28, p27);
MikamiUitOpen 6:38f7dce055d0 42 *
MikamiUitOpen 6:38f7dce055d0 43 * int main() {
MikamiUitOpen 6:38f7dce055d0 44 * int address = 0x62;
MikamiUitOpen 6:38f7dce055d0 45 * char data[2];
MikamiUitOpen 6:38f7dce055d0 46 * i2c.read(address, data, 2);
MikamiUitOpen 6:38f7dce055d0 47 * }
MikamiUitOpen 6:38f7dce055d0 48 * @endcode
MikamiUitOpen 6:38f7dce055d0 49 */
MikamiUitOpen 6:38f7dce055d0 50 class I2C {
MikamiUitOpen 6:38f7dce055d0 51
MikamiUitOpen 6:38f7dce055d0 52 public:
MikamiUitOpen 6:38f7dce055d0 53 enum RxStatus {
MikamiUitOpen 6:38f7dce055d0 54 NoData,
MikamiUitOpen 6:38f7dce055d0 55 MasterGeneralCall,
MikamiUitOpen 6:38f7dce055d0 56 MasterWrite,
MikamiUitOpen 6:38f7dce055d0 57 MasterRead
MikamiUitOpen 6:38f7dce055d0 58 };
MikamiUitOpen 6:38f7dce055d0 59
MikamiUitOpen 6:38f7dce055d0 60 enum Acknowledge {
MikamiUitOpen 6:38f7dce055d0 61 NoACK = 0,
MikamiUitOpen 6:38f7dce055d0 62 ACK = 1
MikamiUitOpen 6:38f7dce055d0 63 };
MikamiUitOpen 6:38f7dce055d0 64
MikamiUitOpen 6:38f7dce055d0 65 /** Create an I2C Master interface, connected to the specified pins
MikamiUitOpen 6:38f7dce055d0 66 *
MikamiUitOpen 6:38f7dce055d0 67 * @param sda I2C data line pin
MikamiUitOpen 6:38f7dce055d0 68 * @param scl I2C clock line pin
MikamiUitOpen 6:38f7dce055d0 69 */
MikamiUitOpen 6:38f7dce055d0 70 I2C(PinName sda, PinName scl);
MikamiUitOpen 6:38f7dce055d0 71
MikamiUitOpen 6:38f7dce055d0 72 /** Set the frequency of the I2C interface
MikamiUitOpen 6:38f7dce055d0 73 *
MikamiUitOpen 6:38f7dce055d0 74 * @param hz The bus frequency in hertz
MikamiUitOpen 6:38f7dce055d0 75 */
MikamiUitOpen 6:38f7dce055d0 76 void frequency(int hz);
MikamiUitOpen 6:38f7dce055d0 77
MikamiUitOpen 6:38f7dce055d0 78 /** Read from an I2C slave
MikamiUitOpen 6:38f7dce055d0 79 *
MikamiUitOpen 6:38f7dce055d0 80 * Performs a complete read transaction. The bottom bit of
MikamiUitOpen 6:38f7dce055d0 81 * the address is forced to 1 to indicate a read.
MikamiUitOpen 6:38f7dce055d0 82 *
MikamiUitOpen 6:38f7dce055d0 83 * @param address 8-bit I2C slave address [ addr | 1 ]
MikamiUitOpen 6:38f7dce055d0 84 * @param data Pointer to the byte-array to read data in to
MikamiUitOpen 6:38f7dce055d0 85 * @param length Number of bytes to read
MikamiUitOpen 6:38f7dce055d0 86 * @param repeated Repeated start, true - don't send stop at end
MikamiUitOpen 6:38f7dce055d0 87 *
MikamiUitOpen 6:38f7dce055d0 88 * @returns
MikamiUitOpen 6:38f7dce055d0 89 * 0 on success (ack),
MikamiUitOpen 6:38f7dce055d0 90 * non-0 on failure (nack)
MikamiUitOpen 6:38f7dce055d0 91 */
MikamiUitOpen 6:38f7dce055d0 92 int read(int address, char *data, int length, bool repeated = false);
MikamiUitOpen 6:38f7dce055d0 93
MikamiUitOpen 6:38f7dce055d0 94 /** Read a single byte from the I2C bus
MikamiUitOpen 6:38f7dce055d0 95 *
MikamiUitOpen 6:38f7dce055d0 96 * @param ack indicates if the byte is to be acknowledged (1 = acknowledge)
MikamiUitOpen 6:38f7dce055d0 97 *
MikamiUitOpen 6:38f7dce055d0 98 * @returns
MikamiUitOpen 6:38f7dce055d0 99 * the byte read
MikamiUitOpen 6:38f7dce055d0 100 */
MikamiUitOpen 6:38f7dce055d0 101 int read(int ack);
MikamiUitOpen 6:38f7dce055d0 102
MikamiUitOpen 6:38f7dce055d0 103 /** Write to an I2C slave
MikamiUitOpen 6:38f7dce055d0 104 *
MikamiUitOpen 6:38f7dce055d0 105 * Performs a complete write transaction. The bottom bit of
MikamiUitOpen 6:38f7dce055d0 106 * the address is forced to 0 to indicate a write.
MikamiUitOpen 6:38f7dce055d0 107 *
MikamiUitOpen 6:38f7dce055d0 108 * @param address 8-bit I2C slave address [ addr | 0 ]
MikamiUitOpen 6:38f7dce055d0 109 * @param data Pointer to the byte-array data to send
MikamiUitOpen 6:38f7dce055d0 110 * @param length Number of bytes to send
MikamiUitOpen 6:38f7dce055d0 111 * @param repeated Repeated start, true - do not send stop at end
MikamiUitOpen 6:38f7dce055d0 112 *
MikamiUitOpen 6:38f7dce055d0 113 * @returns
MikamiUitOpen 6:38f7dce055d0 114 * 0 on success (ack),
MikamiUitOpen 6:38f7dce055d0 115 * non-0 on failure (nack)
MikamiUitOpen 6:38f7dce055d0 116 */
MikamiUitOpen 6:38f7dce055d0 117 int write(int address, const char *data, int length, bool repeated = false);
MikamiUitOpen 6:38f7dce055d0 118
MikamiUitOpen 6:38f7dce055d0 119 /** Write single byte out on the I2C bus
MikamiUitOpen 6:38f7dce055d0 120 *
MikamiUitOpen 6:38f7dce055d0 121 * @param data data to write out on bus
MikamiUitOpen 6:38f7dce055d0 122 *
MikamiUitOpen 6:38f7dce055d0 123 * @returns
MikamiUitOpen 6:38f7dce055d0 124 * '1' if an ACK was received,
MikamiUitOpen 6:38f7dce055d0 125 * '0' otherwise
MikamiUitOpen 6:38f7dce055d0 126 */
MikamiUitOpen 6:38f7dce055d0 127 int write(int data);
MikamiUitOpen 6:38f7dce055d0 128
MikamiUitOpen 6:38f7dce055d0 129 /** Creates a start condition on the I2C bus
MikamiUitOpen 6:38f7dce055d0 130 */
MikamiUitOpen 6:38f7dce055d0 131
MikamiUitOpen 6:38f7dce055d0 132 void start(void);
MikamiUitOpen 6:38f7dce055d0 133
MikamiUitOpen 6:38f7dce055d0 134 /** Creates a stop condition on the I2C bus
MikamiUitOpen 6:38f7dce055d0 135 */
MikamiUitOpen 6:38f7dce055d0 136 void stop(void);
MikamiUitOpen 6:38f7dce055d0 137
MikamiUitOpen 6:38f7dce055d0 138 #if DEVICE_I2C_ASYNCH
MikamiUitOpen 6:38f7dce055d0 139
MikamiUitOpen 6:38f7dce055d0 140 /** Start non-blocking I2C transfer.
MikamiUitOpen 6:38f7dce055d0 141 *
MikamiUitOpen 6:38f7dce055d0 142 * @param address 8/10 bit I2c slave address
MikamiUitOpen 6:38f7dce055d0 143 * @param tx_buffer The TX buffer with data to be transfered
MikamiUitOpen 6:38f7dce055d0 144 * @param tx_length The length of TX buffer in bytes
MikamiUitOpen 6:38f7dce055d0 145 * @param rx_buffer The RX buffer which is used for received data
MikamiUitOpen 6:38f7dce055d0 146 * @param rx_length The length of RX buffer in bytes
MikamiUitOpen 6:38f7dce055d0 147 * @param event The logical OR of events to modify
MikamiUitOpen 6:38f7dce055d0 148 * @param callback The event callback function
MikamiUitOpen 6:38f7dce055d0 149 * @param repeated Repeated start, true - do not send stop at end
MikamiUitOpen 6:38f7dce055d0 150 * @return Zero if the transfer has started, or -1 if I2C peripheral is busy
MikamiUitOpen 6:38f7dce055d0 151 */
MikamiUitOpen 6:38f7dce055d0 152 int transfer(int address, const char *tx_buffer, int tx_length, char *rx_buffer, int rx_length, const event_callback_t& callback, int event = I2C_EVENT_TRANSFER_COMPLETE, bool repeated = false);
MikamiUitOpen 6:38f7dce055d0 153
MikamiUitOpen 6:38f7dce055d0 154 /** Abort the on-going I2C transfer
MikamiUitOpen 6:38f7dce055d0 155 */
MikamiUitOpen 6:38f7dce055d0 156 void abort_transfer();
MikamiUitOpen 6:38f7dce055d0 157 protected:
MikamiUitOpen 6:38f7dce055d0 158 void irq_handler_asynch(void);
MikamiUitOpen 6:38f7dce055d0 159 event_callback_t _callback;
MikamiUitOpen 6:38f7dce055d0 160 CThunk<I2C> _irq;
MikamiUitOpen 6:38f7dce055d0 161 DMAUsage _usage;
MikamiUitOpen 6:38f7dce055d0 162 #endif
MikamiUitOpen 6:38f7dce055d0 163
MikamiUitOpen 6:38f7dce055d0 164 protected:
MikamiUitOpen 6:38f7dce055d0 165 void aquire();
MikamiUitOpen 6:38f7dce055d0 166
MikamiUitOpen 6:38f7dce055d0 167 i2c_t _i2c;
MikamiUitOpen 6:38f7dce055d0 168 static I2C *_owner;
MikamiUitOpen 6:38f7dce055d0 169 int _hz;
MikamiUitOpen 6:38f7dce055d0 170 };
MikamiUitOpen 6:38f7dce055d0 171
MikamiUitOpen 6:38f7dce055d0 172 } // namespace mbed
MikamiUitOpen 6:38f7dce055d0 173
MikamiUitOpen 6:38f7dce055d0 174 #endif
MikamiUitOpen 6:38f7dce055d0 175
MikamiUitOpen 6:38f7dce055d0 176 #endif