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

Revision:
2:dcaee06f6ccb
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed_src_STM32F7/api/platform.h	Sun Oct 02 10:40:44 2016 +0000
@@ -0,0 +1,30 @@
+/* mbed Microcontroller Library
+ * Copyright (c) 2006-2013 ARM Limited
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#ifndef MBED_PLATFORM_H
+#define MBED_PLATFORM_H
+
+#define MBED_OPERATORS    1
+
+#include "device.h"
+#include "PinNames.h"
+#include "PeripheralNames.h"
+
+#include <cstddef>
+#include <cstdlib>
+#include <cstdio>
+#include <cstring>
+
+#endif