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/semihost_api.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_SEMIHOST_H
MikamiUitOpen 2:dcaee06f6ccb 17 #define MBED_SEMIHOST_H
MikamiUitOpen 2:dcaee06f6ccb 18
MikamiUitOpen 2:dcaee06f6ccb 19 #include "device.h"
MikamiUitOpen 2:dcaee06f6ccb 20 #include "toolchain.h"
MikamiUitOpen 2:dcaee06f6ccb 21
MikamiUitOpen 2:dcaee06f6ccb 22 #ifdef __cplusplus
MikamiUitOpen 2:dcaee06f6ccb 23 extern "C" {
MikamiUitOpen 2:dcaee06f6ccb 24 #endif
MikamiUitOpen 2:dcaee06f6ccb 25
MikamiUitOpen 2:dcaee06f6ccb 26 #if DEVICE_SEMIHOST
MikamiUitOpen 2:dcaee06f6ccb 27
MikamiUitOpen 2:dcaee06f6ccb 28 #ifndef __CC_ARM
MikamiUitOpen 2:dcaee06f6ccb 29
MikamiUitOpen 2:dcaee06f6ccb 30 #if defined(__ICCARM__)
MikamiUitOpen 2:dcaee06f6ccb 31 static inline int __semihost(int reason, const void *arg) {
MikamiUitOpen 2:dcaee06f6ccb 32 return __semihosting(reason, (void*)arg);
MikamiUitOpen 2:dcaee06f6ccb 33 }
MikamiUitOpen 2:dcaee06f6ccb 34 #else
MikamiUitOpen 2:dcaee06f6ccb 35
MikamiUitOpen 2:dcaee06f6ccb 36 #ifdef __thumb__
MikamiUitOpen 2:dcaee06f6ccb 37 # define AngelSWI 0xAB
MikamiUitOpen 2:dcaee06f6ccb 38 # define AngelSWIInsn "bkpt"
MikamiUitOpen 2:dcaee06f6ccb 39 # define AngelSWIAsm bkpt
MikamiUitOpen 2:dcaee06f6ccb 40 #else
MikamiUitOpen 2:dcaee06f6ccb 41 # define AngelSWI 0x123456
MikamiUitOpen 2:dcaee06f6ccb 42 # define AngelSWIInsn "swi"
MikamiUitOpen 2:dcaee06f6ccb 43 # define AngelSWIAsm swi
MikamiUitOpen 2:dcaee06f6ccb 44 #endif
MikamiUitOpen 2:dcaee06f6ccb 45
MikamiUitOpen 2:dcaee06f6ccb 46 static inline int __semihost(int reason, const void *arg) {
MikamiUitOpen 2:dcaee06f6ccb 47 int value;
MikamiUitOpen 2:dcaee06f6ccb 48
MikamiUitOpen 2:dcaee06f6ccb 49 asm volatile (
MikamiUitOpen 2:dcaee06f6ccb 50 "mov r0, %1" "\n\t"
MikamiUitOpen 2:dcaee06f6ccb 51 "mov r1, %2" "\n\t"
MikamiUitOpen 2:dcaee06f6ccb 52 AngelSWIInsn " %a3" "\n\t"
MikamiUitOpen 2:dcaee06f6ccb 53 "mov %0, r0"
MikamiUitOpen 2:dcaee06f6ccb 54 : "=r" (value) /* output operands */
MikamiUitOpen 2:dcaee06f6ccb 55 : "r" (reason), "r" (arg), "i" (AngelSWI) /* input operands */
MikamiUitOpen 2:dcaee06f6ccb 56 : "r0", "r1", "r2", "r3", "ip", "lr", "memory", "cc" /* list of clobbered registers */
MikamiUitOpen 2:dcaee06f6ccb 57 );
MikamiUitOpen 2:dcaee06f6ccb 58
MikamiUitOpen 2:dcaee06f6ccb 59 return value;
MikamiUitOpen 2:dcaee06f6ccb 60 }
MikamiUitOpen 2:dcaee06f6ccb 61 #endif
MikamiUitOpen 2:dcaee06f6ccb 62 #endif
MikamiUitOpen 2:dcaee06f6ccb 63
MikamiUitOpen 2:dcaee06f6ccb 64 #if DEVICE_LOCALFILESYSTEM
MikamiUitOpen 2:dcaee06f6ccb 65 FILEHANDLE semihost_open(const char* name, int openmode);
MikamiUitOpen 2:dcaee06f6ccb 66 int semihost_close (FILEHANDLE fh);
MikamiUitOpen 2:dcaee06f6ccb 67 int semihost_read (FILEHANDLE fh, unsigned char* buffer, unsigned int length, int mode);
MikamiUitOpen 2:dcaee06f6ccb 68 int semihost_write (FILEHANDLE fh, const unsigned char* buffer, unsigned int length, int mode);
MikamiUitOpen 2:dcaee06f6ccb 69 int semihost_ensure(FILEHANDLE fh);
MikamiUitOpen 2:dcaee06f6ccb 70 long semihost_flen (FILEHANDLE fh);
MikamiUitOpen 2:dcaee06f6ccb 71 int semihost_seek (FILEHANDLE fh, long position);
MikamiUitOpen 2:dcaee06f6ccb 72 int semihost_istty (FILEHANDLE fh);
MikamiUitOpen 2:dcaee06f6ccb 73
MikamiUitOpen 2:dcaee06f6ccb 74 int semihost_remove(const char *name);
MikamiUitOpen 2:dcaee06f6ccb 75 int semihost_rename(const char *old_name, const char *new_name);
MikamiUitOpen 2:dcaee06f6ccb 76 #endif
MikamiUitOpen 2:dcaee06f6ccb 77
MikamiUitOpen 2:dcaee06f6ccb 78 int semihost_uid(char *uid);
MikamiUitOpen 2:dcaee06f6ccb 79 int semihost_reset(void);
MikamiUitOpen 2:dcaee06f6ccb 80 int semihost_vbus(void);
MikamiUitOpen 2:dcaee06f6ccb 81 int semihost_powerdown(void);
MikamiUitOpen 2:dcaee06f6ccb 82 int semihost_exit(void);
MikamiUitOpen 2:dcaee06f6ccb 83
MikamiUitOpen 2:dcaee06f6ccb 84 int semihost_connected(void);
MikamiUitOpen 2:dcaee06f6ccb 85 int semihost_disabledebug(void);
MikamiUitOpen 2:dcaee06f6ccb 86
MikamiUitOpen 2:dcaee06f6ccb 87 #endif
MikamiUitOpen 2:dcaee06f6ccb 88
MikamiUitOpen 2:dcaee06f6ccb 89 #ifdef __cplusplus
MikamiUitOpen 2:dcaee06f6ccb 90 }
MikamiUitOpen 2:dcaee06f6ccb 91 #endif
MikamiUitOpen 2:dcaee06f6ccb 92
MikamiUitOpen 2:dcaee06f6ccb 93 #endif