Diff: Audio/TestAudio.h

Revision:

0:c05b00be2229

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Audio/TestAudio.h	Thu Jul 13 19:33:37 2017 +0000
@@ -0,0 +1,65 @@
+/*
+ *  Copyright 2013 Embedded Artists AB
+ *
+ *  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 TESTAUDIO_H
+#define TESTAUDIO_H
+
+#include "WM8731.h"
+#include "I2S.h"
+
+#define ECHOLENGTH 600
+
+
+/**
+ * Test the WM8731 audio codec and the audio connectors on 
+ * the LPC4088 Experiment Base Board
+ */
+class TestAudio {
+public:
+
+    /**
+     * Create an interface to the audio codec
+     */
+    TestAudio();
+
+    /**
+     * Test the audio
+     *
+     * @return true if the test was successful; otherwise false
+     */
+	bool runTest();
+
+private:
+
+    /**
+     * Callback function for I2S
+     */
+	void echo(void);
+
+	WM8731 _codec;
+	I2S _i2sTx;
+	I2S _i2sRx;
+	AnalogIn _aIn;
+
+	int _waveIdx;
+	int _echoBufPtr;
+	int _echoBuf[ECHOLENGTH];
+	int _txBuf[16];
+	int _rxBuf[16];
+};
+
+#endif
+