不韋 呂 / F746_SD_VarableFilter

SD card player with variable cotoff frequency lowpass and highpass IIR filter. SD カードの *.wav ファイルのオーディオ信号を，遮断周波数可変 IIR 低域通過および高域通過フィルタを通して，ボードに搭載されているCODEC で出力する．このプログラムについては，CQ出版社インターフェース誌 2018年8月号で解説している．

Dependencies:   F746_GUI F746_SAI_IO FrequencyResponseDrawer SD_PlayerSkeleton

mbed_src_STM32F7/api/SerialBase.h@2:dcaee06f6ccb, 2016-10-02 (annotated)

Committer:
MikamiUitOpen
Date:
Sun Oct 02 10:40:44 2016 +0000
Revision:
2:dcaee06f6ccb
3

Who changed what in which revision?

UserRevisionLine numberNew contents of line
MikamiUitOpen 2:dcaee06f6ccb 1 /* mbed Microcontroller Library
MikamiUitOpen 2:dcaee06f6ccb 2 * Copyright (c) 2006-2013 ARM Limited
MikamiUitOpen 2:dcaee06f6ccb 3 *
MikamiUitOpen 2:dcaee06f6ccb 4 * Licensed under the Apache License, Version 2.0 (the "License");
MikamiUitOpen 2:dcaee06f6ccb 5 * you may not use this file except in compliance with the License.
MikamiUitOpen 2:dcaee06f6ccb 6 * You may obtain a copy of the License at
MikamiUitOpen 2:dcaee06f6ccb 7 *
MikamiUitOpen 2:dcaee06f6ccb 8 * http://www.apache.org/licenses/LICENSE-2.0
MikamiUitOpen 2:dcaee06f6ccb 9 *
MikamiUitOpen 2:dcaee06f6ccb 10 * Unless required by applicable law or agreed to in writing, software
MikamiUitOpen 2:dcaee06f6ccb 11 * distributed under the License is distributed on an "AS IS" BASIS,
MikamiUitOpen 2:dcaee06f6ccb 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
MikamiUitOpen 2:dcaee06f6ccb 13 * See the License for the specific language governing permissions and
MikamiUitOpen 2:dcaee06f6ccb 14 * limitations under the License.
MikamiUitOpen 2:dcaee06f6ccb 15 */
MikamiUitOpen 2:dcaee06f6ccb 16 #ifndef MBED_SERIALBASE_H
MikamiUitOpen 2:dcaee06f6ccb 17 #define MBED_SERIALBASE_H
MikamiUitOpen 2:dcaee06f6ccb 18
MikamiUitOpen 2:dcaee06f6ccb 19 #include "platform.h"
MikamiUitOpen 2:dcaee06f6ccb 20
MikamiUitOpen 2:dcaee06f6ccb 21 #if DEVICE_SERIAL
MikamiUitOpen 2:dcaee06f6ccb 22
MikamiUitOpen 2:dcaee06f6ccb 23 #include "Stream.h"
MikamiUitOpen 2:dcaee06f6ccb 24 #include "FunctionPointer.h"
MikamiUitOpen 2:dcaee06f6ccb 25 #include "serial_api.h"
MikamiUitOpen 2:dcaee06f6ccb 26
MikamiUitOpen 2:dcaee06f6ccb 27 #if DEVICE_SERIAL_ASYNCH
MikamiUitOpen 2:dcaee06f6ccb 28 #include "CThunk.h"
MikamiUitOpen 2:dcaee06f6ccb 29 #include "dma_api.h"
MikamiUitOpen 2:dcaee06f6ccb 30 #endif
MikamiUitOpen 2:dcaee06f6ccb 31
MikamiUitOpen 2:dcaee06f6ccb 32 namespace mbed {
MikamiUitOpen 2:dcaee06f6ccb 33
MikamiUitOpen 2:dcaee06f6ccb 34 /** A base class for serial port implementations
MikamiUitOpen 2:dcaee06f6ccb 35 * Can't be instantiated directly (use Serial or RawSerial)
MikamiUitOpen 2:dcaee06f6ccb 36 */
MikamiUitOpen 2:dcaee06f6ccb 37 class SerialBase {
MikamiUitOpen 2:dcaee06f6ccb 38
MikamiUitOpen 2:dcaee06f6ccb 39 public:
MikamiUitOpen 2:dcaee06f6ccb 40 /** Set the baud rate of the serial port
MikamiUitOpen 2:dcaee06f6ccb 41 *
MikamiUitOpen 2:dcaee06f6ccb 42 * @param baudrate The baudrate of the serial port (default = 9600).
MikamiUitOpen 2:dcaee06f6ccb 43 */
MikamiUitOpen 2:dcaee06f6ccb 44 void baud(int baudrate);
MikamiUitOpen 2:dcaee06f6ccb 45
MikamiUitOpen 2:dcaee06f6ccb 46 enum Parity {
MikamiUitOpen 2:dcaee06f6ccb 47 None = 0,
MikamiUitOpen 2:dcaee06f6ccb 48 Odd,
MikamiUitOpen 2:dcaee06f6ccb 49 Even,
MikamiUitOpen 2:dcaee06f6ccb 50 Forced1,
MikamiUitOpen 2:dcaee06f6ccb 51 Forced0
MikamiUitOpen 2:dcaee06f6ccb 52 };
MikamiUitOpen 2:dcaee06f6ccb 53
MikamiUitOpen 2:dcaee06f6ccb 54 enum IrqType {
MikamiUitOpen 2:dcaee06f6ccb 55 RxIrq = 0,
MikamiUitOpen 2:dcaee06f6ccb 56 TxIrq
MikamiUitOpen 2:dcaee06f6ccb 57 };
MikamiUitOpen 2:dcaee06f6ccb 58
MikamiUitOpen 2:dcaee06f6ccb 59 enum Flow {
MikamiUitOpen 2:dcaee06f6ccb 60 Disabled = 0,
MikamiUitOpen 2:dcaee06f6ccb 61 RTS,
MikamiUitOpen 2:dcaee06f6ccb 62 CTS,
MikamiUitOpen 2:dcaee06f6ccb 63 RTSCTS
MikamiUitOpen 2:dcaee06f6ccb 64 };
MikamiUitOpen 2:dcaee06f6ccb 65
MikamiUitOpen 2:dcaee06f6ccb 66 /** Set the transmission format used by the serial port
MikamiUitOpen 2:dcaee06f6ccb 67 *
MikamiUitOpen 2:dcaee06f6ccb 68 * @param bits The number of bits in a word (5-8; default = 8)
MikamiUitOpen 2:dcaee06f6ccb 69 * @param parity The parity used (SerialBase::None, SerialBase::Odd, SerialBase::Even, SerialBase::Forced1, SerialBase::Forced0; default = SerialBase::None)
MikamiUitOpen 2:dcaee06f6ccb 70 * @param stop The number of stop bits (1 or 2; default = 1)
MikamiUitOpen 2:dcaee06f6ccb 71 */
MikamiUitOpen 2:dcaee06f6ccb 72 void format(int bits=8, Parity parity=SerialBase::None, int stop_bits=1);
MikamiUitOpen 2:dcaee06f6ccb 73
MikamiUitOpen 2:dcaee06f6ccb 74 /** Determine if there is a character available to read
MikamiUitOpen 2:dcaee06f6ccb 75 *
MikamiUitOpen 2:dcaee06f6ccb 76 * @returns
MikamiUitOpen 2:dcaee06f6ccb 77 * 1 if there is a character available to read,
MikamiUitOpen 2:dcaee06f6ccb 78 * 0 otherwise
MikamiUitOpen 2:dcaee06f6ccb 79 */
MikamiUitOpen 2:dcaee06f6ccb 80 int readable();
MikamiUitOpen 2:dcaee06f6ccb 81
MikamiUitOpen 2:dcaee06f6ccb 82 /** Determine if there is space available to write a character
MikamiUitOpen 2:dcaee06f6ccb 83 *
MikamiUitOpen 2:dcaee06f6ccb 84 * @returns
MikamiUitOpen 2:dcaee06f6ccb 85 * 1 if there is space to write a character,
MikamiUitOpen 2:dcaee06f6ccb 86 * 0 otherwise
MikamiUitOpen 2:dcaee06f6ccb 87 */
MikamiUitOpen 2:dcaee06f6ccb 88 int writeable();
MikamiUitOpen 2:dcaee06f6ccb 89
MikamiUitOpen 2:dcaee06f6ccb 90 /** Attach a function to call whenever a serial interrupt is generated
MikamiUitOpen 2:dcaee06f6ccb 91 *
MikamiUitOpen 2:dcaee06f6ccb 92 * @param fptr A pointer to a void function, or 0 to set as none
MikamiUitOpen 2:dcaee06f6ccb 93 * @param type Which serial interrupt to attach the member function to (Seriall::RxIrq for receive, TxIrq for transmit buffer empty)
MikamiUitOpen 2:dcaee06f6ccb 94 */
MikamiUitOpen 2:dcaee06f6ccb 95 void attach(void (*fptr)(void), IrqType type=RxIrq);
MikamiUitOpen 2:dcaee06f6ccb 96
MikamiUitOpen 2:dcaee06f6ccb 97 /** Attach a member function to call whenever a serial interrupt is generated
MikamiUitOpen 2:dcaee06f6ccb 98 *
MikamiUitOpen 2:dcaee06f6ccb 99 * @param tptr pointer to the object to call the member function on
MikamiUitOpen 2:dcaee06f6ccb 100 * @param mptr pointer to the member function to be called
MikamiUitOpen 2:dcaee06f6ccb 101 * @param type Which serial interrupt to attach the member function to (Seriall::RxIrq for receive, TxIrq for transmit buffer empty)
MikamiUitOpen 2:dcaee06f6ccb 102 */
MikamiUitOpen 2:dcaee06f6ccb 103 template<typename T>
MikamiUitOpen 2:dcaee06f6ccb 104 void attach(T* tptr, void (T::*mptr)(void), IrqType type=RxIrq) {
MikamiUitOpen 2:dcaee06f6ccb 105 if((mptr != NULL) && (tptr != NULL)) {
MikamiUitOpen 2:dcaee06f6ccb 106 _irq[type].attach(tptr, mptr);
MikamiUitOpen 2:dcaee06f6ccb 107 serial_irq_set(&_serial, (SerialIrq)type, 1);
MikamiUitOpen 2:dcaee06f6ccb 108 } else {
MikamiUitOpen 2:dcaee06f6ccb 109 serial_irq_set(&_serial, (SerialIrq)type, 0);
MikamiUitOpen 2:dcaee06f6ccb 110 }
MikamiUitOpen 2:dcaee06f6ccb 111 }
MikamiUitOpen 2:dcaee06f6ccb 112
MikamiUitOpen 2:dcaee06f6ccb 113 /** Generate a break condition on the serial line
MikamiUitOpen 2:dcaee06f6ccb 114 */
MikamiUitOpen 2:dcaee06f6ccb 115 void send_break();
MikamiUitOpen 2:dcaee06f6ccb 116
MikamiUitOpen 2:dcaee06f6ccb 117 #if DEVICE_SERIAL_FC
MikamiUitOpen 2:dcaee06f6ccb 118 /** Set the flow control type on the serial port
MikamiUitOpen 2:dcaee06f6ccb 119 *
MikamiUitOpen 2:dcaee06f6ccb 120 * @param type the flow control type (Disabled, RTS, CTS, RTSCTS)
MikamiUitOpen 2:dcaee06f6ccb 121 * @param flow1 the first flow control pin (RTS for RTS or RTSCTS, CTS for CTS)
MikamiUitOpen 2:dcaee06f6ccb 122 * @param flow2 the second flow control pin (CTS for RTSCTS)
MikamiUitOpen 2:dcaee06f6ccb 123 */
MikamiUitOpen 2:dcaee06f6ccb 124 void set_flow_control(Flow type, PinName flow1=NC, PinName flow2=NC);
MikamiUitOpen 2:dcaee06f6ccb 125 #endif
MikamiUitOpen 2:dcaee06f6ccb 126
MikamiUitOpen 2:dcaee06f6ccb 127 static void _irq_handler(uint32_t id, SerialIrq irq_type);
MikamiUitOpen 2:dcaee06f6ccb 128
MikamiUitOpen 2:dcaee06f6ccb 129 #if DEVICE_SERIAL_ASYNCH
MikamiUitOpen 2:dcaee06f6ccb 130
MikamiUitOpen 2:dcaee06f6ccb 131 /** Begin asynchronous write using 8bit buffer. The completition invokes registered TX event callback
MikamiUitOpen 2:dcaee06f6ccb 132 *
MikamiUitOpen 2:dcaee06f6ccb 133 * @param buffer The buffer where received data will be stored
MikamiUitOpen 2:dcaee06f6ccb 134 * @param length The buffer length in bytes
MikamiUitOpen 2:dcaee06f6ccb 135 * @param callback The event callback function
MikamiUitOpen 2:dcaee06f6ccb 136 * @param event The logical OR of TX events
MikamiUitOpen 2:dcaee06f6ccb 137 */
MikamiUitOpen 2:dcaee06f6ccb 138 int write(const uint8_t *buffer, int length, const event_callback_t& callback, int event = SERIAL_EVENT_TX_COMPLETE);
MikamiUitOpen 2:dcaee06f6ccb 139
MikamiUitOpen 2:dcaee06f6ccb 140 /** Begin asynchronous write using 16bit buffer. The completition invokes registered TX event callback
MikamiUitOpen 2:dcaee06f6ccb 141 *
MikamiUitOpen 2:dcaee06f6ccb 142 * @param buffer The buffer where received data will be stored
MikamiUitOpen 2:dcaee06f6ccb 143 * @param length The buffer length in bytes
MikamiUitOpen 2:dcaee06f6ccb 144 * @param callback The event callback function
MikamiUitOpen 2:dcaee06f6ccb 145 * @param event The logical OR of TX events
MikamiUitOpen 2:dcaee06f6ccb 146 */
MikamiUitOpen 2:dcaee06f6ccb 147 int write(const uint16_t *buffer, int length, const event_callback_t& callback, int event = SERIAL_EVENT_TX_COMPLETE);
MikamiUitOpen 2:dcaee06f6ccb 148
MikamiUitOpen 2:dcaee06f6ccb 149 /** Abort the on-going write transfer
MikamiUitOpen 2:dcaee06f6ccb 150 */
MikamiUitOpen 2:dcaee06f6ccb 151 void abort_write();
MikamiUitOpen 2:dcaee06f6ccb 152
MikamiUitOpen 2:dcaee06f6ccb 153 /** Begin asynchronous reading using 8bit buffer. The completition invokes registred RX event callback.
MikamiUitOpen 2:dcaee06f6ccb 154 *
MikamiUitOpen 2:dcaee06f6ccb 155 * @param buffer The buffer where received data will be stored
MikamiUitOpen 2:dcaee06f6ccb 156 * @param length The buffer length in bytes
MikamiUitOpen 2:dcaee06f6ccb 157 * @param callback The event callback function
MikamiUitOpen 2:dcaee06f6ccb 158 * @param event The logical OR of RX events
MikamiUitOpen 2:dcaee06f6ccb 159 * @param char_match The matching character
MikamiUitOpen 2:dcaee06f6ccb 160 */
MikamiUitOpen 2:dcaee06f6ccb 161 int read(uint8_t *buffer, int length, const event_callback_t& callback, int event = SERIAL_EVENT_RX_COMPLETE, unsigned char char_match = SERIAL_RESERVED_CHAR_MATCH);
MikamiUitOpen 2:dcaee06f6ccb 162
MikamiUitOpen 2:dcaee06f6ccb 163 /** Begin asynchronous reading using 16bit buffer. The completition invokes registred RX event callback.
MikamiUitOpen 2:dcaee06f6ccb 164 *
MikamiUitOpen 2:dcaee06f6ccb 165 * @param buffer The buffer where received data will be stored
MikamiUitOpen 2:dcaee06f6ccb 166 * @param length The buffer length in bytes
MikamiUitOpen 2:dcaee06f6ccb 167 * @param callback The event callback function
MikamiUitOpen 2:dcaee06f6ccb 168 * @param event The logical OR of RX events
MikamiUitOpen 2:dcaee06f6ccb 169 * @param char_match The matching character
MikamiUitOpen 2:dcaee06f6ccb 170 */
MikamiUitOpen 2:dcaee06f6ccb 171 int read(uint16_t *buffer, int length, const event_callback_t& callback, int event = SERIAL_EVENT_RX_COMPLETE, unsigned char char_match = SERIAL_RESERVED_CHAR_MATCH);
MikamiUitOpen 2:dcaee06f6ccb 172
MikamiUitOpen 2:dcaee06f6ccb 173 /** Abort the on-going read transfer
MikamiUitOpen 2:dcaee06f6ccb 174 */
MikamiUitOpen 2:dcaee06f6ccb 175 void abort_read();
MikamiUitOpen 2:dcaee06f6ccb 176
MikamiUitOpen 2:dcaee06f6ccb 177 /** Configure DMA usage suggestion for non-blocking TX transfers
MikamiUitOpen 2:dcaee06f6ccb 178 *
MikamiUitOpen 2:dcaee06f6ccb 179 * @param usage The usage DMA hint for peripheral
MikamiUitOpen 2:dcaee06f6ccb 180 * @return Zero if the usage was set, -1 if a transaction is on-going
MikamiUitOpen 2:dcaee06f6ccb 181 */
MikamiUitOpen 2:dcaee06f6ccb 182 int set_dma_usage_tx(DMAUsage usage);
MikamiUitOpen 2:dcaee06f6ccb 183
MikamiUitOpen 2:dcaee06f6ccb 184 /** Configure DMA usage suggestion for non-blocking RX transfers
MikamiUitOpen 2:dcaee06f6ccb 185 *
MikamiUitOpen 2:dcaee06f6ccb 186 * @param usage The usage DMA hint for peripheral
MikamiUitOpen 2:dcaee06f6ccb 187 * @return Zero if the usage was set, -1 if a transaction is on-going
MikamiUitOpen 2:dcaee06f6ccb 188 */
MikamiUitOpen 2:dcaee06f6ccb 189 int set_dma_usage_rx(DMAUsage usage);
MikamiUitOpen 2:dcaee06f6ccb 190
MikamiUitOpen 2:dcaee06f6ccb 191 protected:
MikamiUitOpen 2:dcaee06f6ccb 192 void start_read(void *buffer, int buffer_size, char buffer_width, const event_callback_t& callback, int event, unsigned char char_match);
MikamiUitOpen 2:dcaee06f6ccb 193 void start_write(const void *buffer, int buffer_size, char buffer_width, const event_callback_t& callback, int event);
MikamiUitOpen 2:dcaee06f6ccb 194 void interrupt_handler_asynch(void);
MikamiUitOpen 2:dcaee06f6ccb 195 #endif
MikamiUitOpen 2:dcaee06f6ccb 196
MikamiUitOpen 2:dcaee06f6ccb 197 protected:
MikamiUitOpen 2:dcaee06f6ccb 198 SerialBase(PinName tx, PinName rx);
MikamiUitOpen 2:dcaee06f6ccb 199 virtual ~SerialBase() {
MikamiUitOpen 2:dcaee06f6ccb 200 }
MikamiUitOpen 2:dcaee06f6ccb 201
MikamiUitOpen 2:dcaee06f6ccb 202 int _base_getc();
MikamiUitOpen 2:dcaee06f6ccb 203 int _base_putc(int c);
MikamiUitOpen 2:dcaee06f6ccb 204
MikamiUitOpen 2:dcaee06f6ccb 205 #if DEVICE_SERIAL_ASYNCH
MikamiUitOpen 2:dcaee06f6ccb 206 CThunk<SerialBase> _thunk_irq;
MikamiUitOpen 2:dcaee06f6ccb 207 event_callback_t _tx_callback;
MikamiUitOpen 2:dcaee06f6ccb 208 event_callback_t _rx_callback;
MikamiUitOpen 2:dcaee06f6ccb 209 DMAUsage _tx_usage;
MikamiUitOpen 2:dcaee06f6ccb 210 DMAUsage _rx_usage;
MikamiUitOpen 2:dcaee06f6ccb 211 #endif
MikamiUitOpen 2:dcaee06f6ccb 212
MikamiUitOpen 2:dcaee06f6ccb 213 serial_t _serial;
MikamiUitOpen 2:dcaee06f6ccb 214 FunctionPointer _irq[2];
MikamiUitOpen 2:dcaee06f6ccb 215 int _baud;
MikamiUitOpen 2:dcaee06f6ccb 216
MikamiUitOpen 2:dcaee06f6ccb 217 };
MikamiUitOpen 2:dcaee06f6ccb 218
MikamiUitOpen 2:dcaee06f6ccb 219 } // namespace mbed
MikamiUitOpen 2:dcaee06f6ccb 220
MikamiUitOpen 2:dcaee06f6ccb 221 #endif
MikamiUitOpen 2:dcaee06f6ccb 222
MikamiUitOpen 2:dcaee06f6ccb 223 #endif