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/CAN.h@11:399670d24ed9, 2017-04-10 (annotated)

Committer:
MikamiUitOpen
Date:
Mon Apr 10 01:44:22 2017 +0000
Revision:
11:399670d24ed9
Parent:
2:dcaee06f6ccb 
12

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_CAN_H
MikamiUitOpen 2:dcaee06f6ccb 17 #define MBED_CAN_H
MikamiUitOpen 2:dcaee06f6ccb 18
MikamiUitOpen 2:dcaee06f6ccb 19 #include "platform.h"
MikamiUitOpen 2:dcaee06f6ccb 20
MikamiUitOpen 2:dcaee06f6ccb 21 #if DEVICE_CAN
MikamiUitOpen 2:dcaee06f6ccb 22
MikamiUitOpen 2:dcaee06f6ccb 23 #include "can_api.h"
MikamiUitOpen 2:dcaee06f6ccb 24 #include "can_helper.h"
MikamiUitOpen 2:dcaee06f6ccb 25 #include "FunctionPointer.h"
MikamiUitOpen 2:dcaee06f6ccb 26
MikamiUitOpen 2:dcaee06f6ccb 27 namespace mbed {
MikamiUitOpen 2:dcaee06f6ccb 28
MikamiUitOpen 2:dcaee06f6ccb 29 /** CANMessage class
MikamiUitOpen 2:dcaee06f6ccb 30 */
MikamiUitOpen 2:dcaee06f6ccb 31 class CANMessage : public CAN_Message {
MikamiUitOpen 2:dcaee06f6ccb 32
MikamiUitOpen 2:dcaee06f6ccb 33 public:
MikamiUitOpen 2:dcaee06f6ccb 34 /** Creates empty CAN message.
MikamiUitOpen 2:dcaee06f6ccb 35 */
MikamiUitOpen 2:dcaee06f6ccb 36 CANMessage() : CAN_Message() {
MikamiUitOpen 2:dcaee06f6ccb 37 len = 8;
MikamiUitOpen 2:dcaee06f6ccb 38 type = CANData;
MikamiUitOpen 2:dcaee06f6ccb 39 format = CANStandard;
MikamiUitOpen 2:dcaee06f6ccb 40 id = 0;
MikamiUitOpen 2:dcaee06f6ccb 41 memset(data, 0, 8);
MikamiUitOpen 2:dcaee06f6ccb 42 }
MikamiUitOpen 2:dcaee06f6ccb 43
MikamiUitOpen 2:dcaee06f6ccb 44 /** Creates CAN message with specific content.
MikamiUitOpen 2:dcaee06f6ccb 45 */
MikamiUitOpen 2:dcaee06f6ccb 46 CANMessage(int _id, const char *_data, char _len = 8, CANType _type = CANData, CANFormat _format = CANStandard) {
MikamiUitOpen 2:dcaee06f6ccb 47 len = _len & 0xF;
MikamiUitOpen 2:dcaee06f6ccb 48 type = _type;
MikamiUitOpen 2:dcaee06f6ccb 49 format = _format;
MikamiUitOpen 2:dcaee06f6ccb 50 id = _id;
MikamiUitOpen 2:dcaee06f6ccb 51 memcpy(data, _data, _len);
MikamiUitOpen 2:dcaee06f6ccb 52 }
MikamiUitOpen 2:dcaee06f6ccb 53
MikamiUitOpen 2:dcaee06f6ccb 54 /** Creates CAN remote message.
MikamiUitOpen 2:dcaee06f6ccb 55 */
MikamiUitOpen 2:dcaee06f6ccb 56 CANMessage(int _id, CANFormat _format = CANStandard) {
MikamiUitOpen 2:dcaee06f6ccb 57 len = 0;
MikamiUitOpen 2:dcaee06f6ccb 58 type = CANRemote;
MikamiUitOpen 2:dcaee06f6ccb 59 format = _format;
MikamiUitOpen 2:dcaee06f6ccb 60 id = _id;
MikamiUitOpen 2:dcaee06f6ccb 61 memset(data, 0, 8);
MikamiUitOpen 2:dcaee06f6ccb 62 }
MikamiUitOpen 2:dcaee06f6ccb 63 };
MikamiUitOpen 2:dcaee06f6ccb 64
MikamiUitOpen 2:dcaee06f6ccb 65 /** A can bus client, used for communicating with can devices
MikamiUitOpen 2:dcaee06f6ccb 66 */
MikamiUitOpen 2:dcaee06f6ccb 67 class CAN {
MikamiUitOpen 2:dcaee06f6ccb 68
MikamiUitOpen 2:dcaee06f6ccb 69 public:
MikamiUitOpen 2:dcaee06f6ccb 70 /** Creates an CAN interface connected to specific pins.
MikamiUitOpen 2:dcaee06f6ccb 71 *
MikamiUitOpen 2:dcaee06f6ccb 72 * @param rd read from transmitter
MikamiUitOpen 2:dcaee06f6ccb 73 * @param td transmit to transmitter
MikamiUitOpen 2:dcaee06f6ccb 74 *
MikamiUitOpen 2:dcaee06f6ccb 75 * Example:
MikamiUitOpen 2:dcaee06f6ccb 76 * @code
MikamiUitOpen 2:dcaee06f6ccb 77 * #include "mbed.h"
MikamiUitOpen 2:dcaee06f6ccb 78 *
MikamiUitOpen 2:dcaee06f6ccb 79 * Ticker ticker;
MikamiUitOpen 2:dcaee06f6ccb 80 * DigitalOut led1(LED1);
MikamiUitOpen 2:dcaee06f6ccb 81 * DigitalOut led2(LED2);
MikamiUitOpen 2:dcaee06f6ccb 82 * CAN can1(p9, p10);
MikamiUitOpen 2:dcaee06f6ccb 83 * CAN can2(p30, p29);
MikamiUitOpen 2:dcaee06f6ccb 84 *
MikamiUitOpen 2:dcaee06f6ccb 85 * char counter = 0;
MikamiUitOpen 2:dcaee06f6ccb 86 *
MikamiUitOpen 2:dcaee06f6ccb 87 * void send() {
MikamiUitOpen 2:dcaee06f6ccb 88 * if(can1.write(CANMessage(1337, &counter, 1))) {
MikamiUitOpen 2:dcaee06f6ccb 89 * printf("Message sent: %d\n", counter);
MikamiUitOpen 2:dcaee06f6ccb 90 * counter++;
MikamiUitOpen 2:dcaee06f6ccb 91 * }
MikamiUitOpen 2:dcaee06f6ccb 92 * led1 = !led1;
MikamiUitOpen 2:dcaee06f6ccb 93 * }
MikamiUitOpen 2:dcaee06f6ccb 94 *
MikamiUitOpen 2:dcaee06f6ccb 95 * int main() {
MikamiUitOpen 2:dcaee06f6ccb 96 * ticker.attach(&send, 1);
MikamiUitOpen 2:dcaee06f6ccb 97 * CANMessage msg;
MikamiUitOpen 2:dcaee06f6ccb 98 * while(1) {
MikamiUitOpen 2:dcaee06f6ccb 99 * if(can2.read(msg)) {
MikamiUitOpen 2:dcaee06f6ccb 100 * printf("Message received: %d\n\n", msg.data[0]);
MikamiUitOpen 2:dcaee06f6ccb 101 * led2 = !led2;
MikamiUitOpen 2:dcaee06f6ccb 102 * }
MikamiUitOpen 2:dcaee06f6ccb 103 * wait(0.2);
MikamiUitOpen 2:dcaee06f6ccb 104 * }
MikamiUitOpen 2:dcaee06f6ccb 105 * }
MikamiUitOpen 2:dcaee06f6ccb 106 * @endcode
MikamiUitOpen 2:dcaee06f6ccb 107 */
MikamiUitOpen 2:dcaee06f6ccb 108 CAN(PinName rd, PinName td);
MikamiUitOpen 2:dcaee06f6ccb 109 virtual ~CAN();
MikamiUitOpen 2:dcaee06f6ccb 110
MikamiUitOpen 2:dcaee06f6ccb 111 /** Set the frequency of the CAN interface
MikamiUitOpen 2:dcaee06f6ccb 112 *
MikamiUitOpen 2:dcaee06f6ccb 113 * @param hz The bus frequency in hertz
MikamiUitOpen 2:dcaee06f6ccb 114 *
MikamiUitOpen 2:dcaee06f6ccb 115 * @returns
MikamiUitOpen 2:dcaee06f6ccb 116 * 1 if successful,
MikamiUitOpen 2:dcaee06f6ccb 117 * 0 otherwise
MikamiUitOpen 2:dcaee06f6ccb 118 */
MikamiUitOpen 2:dcaee06f6ccb 119 int frequency(int hz);
MikamiUitOpen 2:dcaee06f6ccb 120
MikamiUitOpen 2:dcaee06f6ccb 121 /** Write a CANMessage to the bus.
MikamiUitOpen 2:dcaee06f6ccb 122 *
MikamiUitOpen 2:dcaee06f6ccb 123 * @param msg The CANMessage to write.
MikamiUitOpen 2:dcaee06f6ccb 124 *
MikamiUitOpen 2:dcaee06f6ccb 125 * @returns
MikamiUitOpen 2:dcaee06f6ccb 126 * 0 if write failed,
MikamiUitOpen 2:dcaee06f6ccb 127 * 1 if write was successful
MikamiUitOpen 2:dcaee06f6ccb 128 */
MikamiUitOpen 2:dcaee06f6ccb 129 int write(CANMessage msg);
MikamiUitOpen 2:dcaee06f6ccb 130
MikamiUitOpen 2:dcaee06f6ccb 131 /** Read a CANMessage from the bus.
MikamiUitOpen 2:dcaee06f6ccb 132 *
MikamiUitOpen 2:dcaee06f6ccb 133 * @param msg A CANMessage to read to.
MikamiUitOpen 2:dcaee06f6ccb 134 * @param handle message filter handle (0 for any message)
MikamiUitOpen 2:dcaee06f6ccb 135 *
MikamiUitOpen 2:dcaee06f6ccb 136 * @returns
MikamiUitOpen 2:dcaee06f6ccb 137 * 0 if no message arrived,
MikamiUitOpen 2:dcaee06f6ccb 138 * 1 if message arrived
MikamiUitOpen 2:dcaee06f6ccb 139 */
MikamiUitOpen 2:dcaee06f6ccb 140 int read(CANMessage &msg, int handle = 0);
MikamiUitOpen 2:dcaee06f6ccb 141
MikamiUitOpen 2:dcaee06f6ccb 142 /** Reset CAN interface.
MikamiUitOpen 2:dcaee06f6ccb 143 *
MikamiUitOpen 2:dcaee06f6ccb 144 * To use after error overflow.
MikamiUitOpen 2:dcaee06f6ccb 145 */
MikamiUitOpen 2:dcaee06f6ccb 146 void reset();
MikamiUitOpen 2:dcaee06f6ccb 147
MikamiUitOpen 2:dcaee06f6ccb 148 /** Puts or removes the CAN interface into silent monitoring mode
MikamiUitOpen 2:dcaee06f6ccb 149 *
MikamiUitOpen 2:dcaee06f6ccb 150 * @param silent boolean indicating whether to go into silent mode or not
MikamiUitOpen 2:dcaee06f6ccb 151 */
MikamiUitOpen 2:dcaee06f6ccb 152 void monitor(bool silent);
MikamiUitOpen 2:dcaee06f6ccb 153
MikamiUitOpen 2:dcaee06f6ccb 154 enum Mode {
MikamiUitOpen 2:dcaee06f6ccb 155 Reset = 0,
MikamiUitOpen 2:dcaee06f6ccb 156 Normal,
MikamiUitOpen 2:dcaee06f6ccb 157 Silent,
MikamiUitOpen 2:dcaee06f6ccb 158 LocalTest,
MikamiUitOpen 2:dcaee06f6ccb 159 GlobalTest,
MikamiUitOpen 2:dcaee06f6ccb 160 SilentTest
MikamiUitOpen 2:dcaee06f6ccb 161 };
MikamiUitOpen 2:dcaee06f6ccb 162
MikamiUitOpen 2:dcaee06f6ccb 163 /** Change CAN operation to the specified mode
MikamiUitOpen 2:dcaee06f6ccb 164 *
MikamiUitOpen 2:dcaee06f6ccb 165 * @param mode The new operation mode (CAN::Normal, CAN::Silent, CAN::LocalTest, CAN::GlobalTest, CAN::SilentTest)
MikamiUitOpen 2:dcaee06f6ccb 166 *
MikamiUitOpen 2:dcaee06f6ccb 167 * @returns
MikamiUitOpen 2:dcaee06f6ccb 168 * 0 if mode change failed or unsupported,
MikamiUitOpen 2:dcaee06f6ccb 169 * 1 if mode change was successful
MikamiUitOpen 2:dcaee06f6ccb 170 */
MikamiUitOpen 2:dcaee06f6ccb 171 int mode(Mode mode);
MikamiUitOpen 2:dcaee06f6ccb 172
MikamiUitOpen 2:dcaee06f6ccb 173 /** Filter out incomming messages
MikamiUitOpen 2:dcaee06f6ccb 174 *
MikamiUitOpen 2:dcaee06f6ccb 175 * @param id the id to filter on
MikamiUitOpen 2:dcaee06f6ccb 176 * @param mask the mask applied to the id
MikamiUitOpen 2:dcaee06f6ccb 177 * @param format format to filter on (Default CANAny)
MikamiUitOpen 2:dcaee06f6ccb 178 * @param handle message filter handle (Optional)
MikamiUitOpen 2:dcaee06f6ccb 179 *
MikamiUitOpen 2:dcaee06f6ccb 180 * @returns
MikamiUitOpen 2:dcaee06f6ccb 181 * 0 if filter change failed or unsupported,
MikamiUitOpen 2:dcaee06f6ccb 182 * new filter handle if successful
MikamiUitOpen 2:dcaee06f6ccb 183 */
MikamiUitOpen 2:dcaee06f6ccb 184 int filter(unsigned int id, unsigned int mask, CANFormat format = CANAny, int handle = 0);
MikamiUitOpen 2:dcaee06f6ccb 185
MikamiUitOpen 2:dcaee06f6ccb 186 /** Returns number of read errors to detect read overflow errors.
MikamiUitOpen 2:dcaee06f6ccb 187 */
MikamiUitOpen 2:dcaee06f6ccb 188 unsigned char rderror();
MikamiUitOpen 2:dcaee06f6ccb 189
MikamiUitOpen 2:dcaee06f6ccb 190 /** Returns number of write errors to detect write overflow errors.
MikamiUitOpen 2:dcaee06f6ccb 191 */
MikamiUitOpen 2:dcaee06f6ccb 192 unsigned char tderror();
MikamiUitOpen 2:dcaee06f6ccb 193
MikamiUitOpen 2:dcaee06f6ccb 194 enum IrqType {
MikamiUitOpen 2:dcaee06f6ccb 195 RxIrq = 0,
MikamiUitOpen 2:dcaee06f6ccb 196 TxIrq,
MikamiUitOpen 2:dcaee06f6ccb 197 EwIrq,
MikamiUitOpen 2:dcaee06f6ccb 198 DoIrq,
MikamiUitOpen 2:dcaee06f6ccb 199 WuIrq,
MikamiUitOpen 2:dcaee06f6ccb 200 EpIrq,
MikamiUitOpen 2:dcaee06f6ccb 201 AlIrq,
MikamiUitOpen 2:dcaee06f6ccb 202 BeIrq,
MikamiUitOpen 2:dcaee06f6ccb 203 IdIrq
MikamiUitOpen 2:dcaee06f6ccb 204 };
MikamiUitOpen 2:dcaee06f6ccb 205
MikamiUitOpen 2:dcaee06f6ccb 206 /** Attach a function to call whenever a CAN frame received interrupt is
MikamiUitOpen 2:dcaee06f6ccb 207 * generated.
MikamiUitOpen 2:dcaee06f6ccb 208 *
MikamiUitOpen 2:dcaee06f6ccb 209 * @param fptr A pointer to a void function, or 0 to set as none
MikamiUitOpen 2:dcaee06f6ccb 210 * @param event Which CAN interrupt to attach the member function to (CAN::RxIrq for message received, CAN::TxIrq for transmitted or aborted, CAN::EwIrq for error warning, CAN::DoIrq for data overrun, CAN::WuIrq for wake-up, CAN::EpIrq for error passive, CAN::AlIrq for arbitration lost, CAN::BeIrq for bus error)
MikamiUitOpen 2:dcaee06f6ccb 211 */
MikamiUitOpen 2:dcaee06f6ccb 212 void attach(void (*fptr)(void), IrqType type=RxIrq);
MikamiUitOpen 2:dcaee06f6ccb 213
MikamiUitOpen 2:dcaee06f6ccb 214 /** Attach a member function to call whenever a CAN frame received interrupt
MikamiUitOpen 2:dcaee06f6ccb 215 * is generated.
MikamiUitOpen 2:dcaee06f6ccb 216 *
MikamiUitOpen 2:dcaee06f6ccb 217 * @param tptr pointer to the object to call the member function on
MikamiUitOpen 2:dcaee06f6ccb 218 * @param mptr pointer to the member function to be called
MikamiUitOpen 2:dcaee06f6ccb 219 * @param event Which CAN interrupt to attach the member function to (CAN::RxIrq for message received, TxIrq for transmitted or aborted, EwIrq for error warning, DoIrq for data overrun, WuIrq for wake-up, EpIrq for error passive, AlIrq for arbitration lost, BeIrq for bus error)
MikamiUitOpen 2:dcaee06f6ccb 220 */
MikamiUitOpen 2:dcaee06f6ccb 221 template<typename T>
MikamiUitOpen 2:dcaee06f6ccb 222 void attach(T* tptr, void (T::*mptr)(void), IrqType type=RxIrq) {
MikamiUitOpen 2:dcaee06f6ccb 223 if((mptr != NULL) && (tptr != NULL)) {
MikamiUitOpen 2:dcaee06f6ccb 224 _irq[type].attach(tptr, mptr);
MikamiUitOpen 2:dcaee06f6ccb 225 can_irq_set(&_can, (CanIrqType)type, 1);
MikamiUitOpen 2:dcaee06f6ccb 226 }
MikamiUitOpen 2:dcaee06f6ccb 227 else {
MikamiUitOpen 2:dcaee06f6ccb 228 can_irq_set(&_can, (CanIrqType)type, 0);
MikamiUitOpen 2:dcaee06f6ccb 229 }
MikamiUitOpen 2:dcaee06f6ccb 230 }
MikamiUitOpen 2:dcaee06f6ccb 231
MikamiUitOpen 2:dcaee06f6ccb 232 static void _irq_handler(uint32_t id, CanIrqType type);
MikamiUitOpen 2:dcaee06f6ccb 233
MikamiUitOpen 2:dcaee06f6ccb 234 protected:
MikamiUitOpen 2:dcaee06f6ccb 235 can_t _can;
MikamiUitOpen 2:dcaee06f6ccb 236 FunctionPointer _irq[9];
MikamiUitOpen 2:dcaee06f6ccb 237 };
MikamiUitOpen 2:dcaee06f6ccb 238
MikamiUitOpen 2:dcaee06f6ccb 239 } // namespace mbed
MikamiUitOpen 2:dcaee06f6ccb 240
MikamiUitOpen 2:dcaee06f6ccb 241 #endif
MikamiUitOpen 2:dcaee06f6ccb 242
MikamiUitOpen 2:dcaee06f6ccb 243 #endif // MBED_CAN_H