p igmon
Part of MicroGen4 Music Synthesizer Program. (But not test it yet.) I2S ,DMA ,Stereo ,16Bit Dac(PCM1781) See detail: http://www.geocities.jp/micro_diys/index2
Now added generate Saw Wave to DAC function in generate();
You will hear Stereo saw wave sound now.
more info: http://www.geocities.jp/micro_diys/i2s_test_sample/i2s_test_sample.html
Diff: synthesizer.h
- Revision:
- 0:dc88722ab141
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/synthesizer.h Thu Jul 03 11:59:07 2014 +0000
@@ -0,0 +1,53 @@
+/*
+ COPYRIGHT(c) 2014 p.igmon
+*/
+
+#ifndef SYNTHESIZER_H
+#define SYNTHESIZER_H
+
+typedef signed long S32;
+typedef signed short S16;
+typedef signed char S8;
+typedef unsigned long U32;
+typedef unsigned short U16;
+typedef unsigned char U8;
+
+#include "mbed.h"
+#include "cmsis.h"
+#include "stm32f401xe.h"
+#include "stm32f4xx.h"
+#include "stm32f4xx_hal.h"
+#include "stm32f4xx_hal_dma_ex.h"
+#include "stm32f4xx_hal_dma.h"
+#include "stm32f4xx_hal_i2s.h"
+
+#include "stm32f4xx_hal_conf.h"
+#include "stm32f4xx_it.h"
+
+#include "error.h"
+#include "pinmap.h"
+#include "PinNames.h"
+#include "gpio_irq_api.h"
+
+#define I2S2 SPI2
+#define DMA_BUFFERSIZE 2048
+
+
+typedef enum
+{
+ DMA_Idle = 0,
+ DMA_HalfComplete,
+ DMA_FullComplete,
+}BUFFER_StateTypeDef;
+
+void MX_GPIO_Init(void);
+void uGen4_device_init(void);
+void init_dmabuffer(void);
+void i2s_dma_init(void);
+
+void wave_generate(void);
+
+void test_loop(void);
+void test_loop2(void);
+
+#endif