Tomona Nanase / Mbed 2 deprecated DISCO-F746NG_Sweep

DISCO-F746NGのAudioOutから正弦波をスイープとして出力します。ダブルバッファリングを使って、リアルタイムにデータ生成をしています。 This program outputs sine sweep from AudioOut on DISCO-F746NG. The program uses double buffering when generates data signals.

Dependencies:   BSP_DISCO_F746NG_patch_fixed LCD_DISCO_F746NG mbed

Diff: main.h

Revision:
0:ece4ec581d2b
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.h	Sat Dec 26 07:20:53 2015 +0000
@@ -0,0 +1,27 @@
+#include "mbed.h"
+#include "stm32746g_discovery_audio.h"
+#include "LCD_DISCO_F746NG.h"
+
+#define PI              ((double)3.1415926535897932384626433832795028)
+#define SamplingFreq    I2S_AUDIOFREQ_16K
+#define BufferSize      (1024)                          /* Sample Size */
+#define BufferByteSize  (BufferSize * AUDIODATA_SIZE)   /* Byte Size */
+
+#define AudioVolume     ((uint8_t)8)
+#define Amplifier       ((double)0.25)
+
+#define MaxFreq         ((double)8000)
+#define MinFreq         ((double)50)
+#define SweepSpeed      ((double)0.01)
+
+extern LCD_DISCO_F746NG lcd;
+extern DigitalOut led1;
+extern int16_t sweep_buffer[BufferSize];
+
+void AUDIO_OUT_SAIx_DMAx_IRQHandler();
+
+void error_trap();
+void printlcd(const char *str);
+void printlcdAt(const char *str, uint16_t line);
+
+void fill_buffer(uint32_t offset, uint32_t size);