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/mbed_error.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?
User | Revision | Line number | New 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_ERROR_H |
MikamiUitOpen | 2:dcaee06f6ccb | 17 | #define MBED_ERROR_H |
MikamiUitOpen | 2:dcaee06f6ccb | 18 | |
MikamiUitOpen | 2:dcaee06f6ccb | 19 | /** To generate a fatal compile-time error, you can use the pre-processor #error directive. |
MikamiUitOpen | 2:dcaee06f6ccb | 20 | * |
MikamiUitOpen | 2:dcaee06f6ccb | 21 | * @code |
MikamiUitOpen | 2:dcaee06f6ccb | 22 | * #error "That shouldn't have happened!" |
MikamiUitOpen | 2:dcaee06f6ccb | 23 | * @endcode |
MikamiUitOpen | 2:dcaee06f6ccb | 24 | * |
MikamiUitOpen | 2:dcaee06f6ccb | 25 | * If the compiler evaluates this line, it will report the error and stop the compile. |
MikamiUitOpen | 2:dcaee06f6ccb | 26 | * |
MikamiUitOpen | 2:dcaee06f6ccb | 27 | * For example, you could use this to check some user-defined compile-time variables: |
MikamiUitOpen | 2:dcaee06f6ccb | 28 | * |
MikamiUitOpen | 2:dcaee06f6ccb | 29 | * @code |
MikamiUitOpen | 2:dcaee06f6ccb | 30 | * #define NUM_PORTS 7 |
MikamiUitOpen | 2:dcaee06f6ccb | 31 | * #if (NUM_PORTS > 4) |
MikamiUitOpen | 2:dcaee06f6ccb | 32 | * #error "NUM_PORTS must be less than 4" |
MikamiUitOpen | 2:dcaee06f6ccb | 33 | * #endif |
MikamiUitOpen | 2:dcaee06f6ccb | 34 | * @endcode |
MikamiUitOpen | 2:dcaee06f6ccb | 35 | * |
MikamiUitOpen | 2:dcaee06f6ccb | 36 | * Reporting Run-Time Errors: |
MikamiUitOpen | 2:dcaee06f6ccb | 37 | * To generate a fatal run-time error, you can use the mbed error() function. |
MikamiUitOpen | 2:dcaee06f6ccb | 38 | * |
MikamiUitOpen | 2:dcaee06f6ccb | 39 | * @code |
MikamiUitOpen | 2:dcaee06f6ccb | 40 | * error("That shouldn't have happened!"); |
MikamiUitOpen | 2:dcaee06f6ccb | 41 | * @endcode |
MikamiUitOpen | 2:dcaee06f6ccb | 42 | * |
MikamiUitOpen | 2:dcaee06f6ccb | 43 | * If the mbed running the program executes this function, it will print the |
MikamiUitOpen | 2:dcaee06f6ccb | 44 | * message via the USB serial port, and then die with the blue lights of death! |
MikamiUitOpen | 2:dcaee06f6ccb | 45 | * |
MikamiUitOpen | 2:dcaee06f6ccb | 46 | * The message can use printf-style formatting, so you can report variables in the |
MikamiUitOpen | 2:dcaee06f6ccb | 47 | * message too. For example, you could use this to check a run-time condition: |
MikamiUitOpen | 2:dcaee06f6ccb | 48 | * |
MikamiUitOpen | 2:dcaee06f6ccb | 49 | * @code |
MikamiUitOpen | 2:dcaee06f6ccb | 50 | * if(x >= 5) { |
MikamiUitOpen | 2:dcaee06f6ccb | 51 | * error("expected x to be less than 5, but got %d", x); |
MikamiUitOpen | 2:dcaee06f6ccb | 52 | * } |
MikamiUitOpen | 2:dcaee06f6ccb | 53 | * #endcode |
MikamiUitOpen | 2:dcaee06f6ccb | 54 | */ |
MikamiUitOpen | 2:dcaee06f6ccb | 55 | |
MikamiUitOpen | 2:dcaee06f6ccb | 56 | #ifdef __cplusplus |
MikamiUitOpen | 2:dcaee06f6ccb | 57 | extern "C" { |
MikamiUitOpen | 2:dcaee06f6ccb | 58 | #endif |
MikamiUitOpen | 2:dcaee06f6ccb | 59 | |
MikamiUitOpen | 2:dcaee06f6ccb | 60 | void error(const char* format, ...); |
MikamiUitOpen | 2:dcaee06f6ccb | 61 | |
MikamiUitOpen | 2:dcaee06f6ccb | 62 | #ifdef __cplusplus |
MikamiUitOpen | 2:dcaee06f6ccb | 63 | } |
MikamiUitOpen | 2:dcaee06f6ccb | 64 | #endif |
MikamiUitOpen | 2:dcaee06f6ccb | 65 | |
MikamiUitOpen | 2:dcaee06f6ccb | 66 | #endif |