Dependencies: BSP_DISCO_F746NG
Revision 0:c8a59680e1a0, committed 2020-01-30
- Comitter:
- SlavikMIPT
- Date:
- Thu Jan 30 12:29:54 2020 +0000
- Commit message:
- init
Changed in this revision
diff -r 000000000000 -r c8a59680e1a0 .hgignore --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/.hgignore Thu Jan 30 12:29:54 2020 +0000 @@ -0,0 +1,2 @@ +BUILD +mbed-os/
diff -r 000000000000 -r c8a59680e1a0 BSP_DISCO_F746NG.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/BSP_DISCO_F746NG.lib Thu Jan 30 12:29:54 2020 +0000 @@ -0,0 +1,1 @@ +https://mbed.org/teams/ST/code/BSP_DISCO_F746NG/#85dbcff443aa
diff -r 000000000000 -r c8a59680e1a0 main.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Thu Jan 30 12:29:54 2020 +0000
@@ -0,0 +1,102 @@
+#include "mbed.h"
+#include "stm32746g_discovery_audio.h"
+#include "stm32746g_discovery_sdram.h"
+
+
+typedef enum {
+ BUFFER_OFFSET_NONE = 0,
+ BUFFER_OFFSET_HALF = 1,
+ BUFFER_OFFSET_FULL = 2,
+} BUFFER_StateTypeDef;
+
+
+#define AUDIO_BLOCK_SIZE ((uint32_t)512)
+#define AUDIO_BUFFER_IN SDRAM_DEVICE_ADDR
+#define AUDIO_BUFFER_OUT (AUDIO_BUFFER_IN + (AUDIO_BLOCK_SIZE * 2))
+
+volatile uint32_t audio_rec_buffer_state = BUFFER_OFFSET_NONE;
+
+
+int main()
+{
+ printf("\n\nAUDIO LOOPBACK EXAMPLE START:\n");
+ printf("%d\n", SystemCoreClock);
+
+ BSP_AUDIO_IN_OUT_Init(INPUT_DEVICE_DIGITAL_MICROPHONE_2, OUTPUT_DEVICE_HEADPHONE, DEFAULT_AUDIO_IN_FREQ, DEFAULT_AUDIO_IN_BIT_RESOLUTION, DEFAULT_AUDIO_IN_CHANNEL_NBR);
+ printf("AUDIO loop from digital micro (U20 & U21 components on board) to headphone (CN10 jack connector)\n");
+
+
+ /* Initialize SDRAM buffers */
+ BSP_SDRAM_Init();
+ memset((uint16_t *)AUDIO_BUFFER_IN, 0, AUDIO_BLOCK_SIZE * 2);
+ memset((uint16_t *)AUDIO_BUFFER_OUT, 0, AUDIO_BLOCK_SIZE * 2);
+ printf("SDRAM init done\n");
+
+ audio_rec_buffer_state = BUFFER_OFFSET_NONE;
+
+ /* Start Recording */
+ if (BSP_AUDIO_IN_Record((uint16_t *)AUDIO_BUFFER_IN, AUDIO_BLOCK_SIZE) != AUDIO_OK) {
+ printf("BSP_AUDIO_IN_Record error\n");
+ }
+
+ /* Start Playback */
+ BSP_AUDIO_OUT_SetAudioFrameSlot(CODEC_AUDIOFRAME_SLOT_02);
+ if (BSP_AUDIO_OUT_Play((uint16_t *)AUDIO_BUFFER_OUT, AUDIO_BLOCK_SIZE * 2) != AUDIO_OK) {
+ printf("BSP_AUDIO_OUT_Play error\n");
+ }
+
+ while (1) {
+ /* Wait end of half block recording */
+ while (audio_rec_buffer_state == BUFFER_OFFSET_HALF) {
+ }
+ audio_rec_buffer_state = BUFFER_OFFSET_NONE;
+
+ /* Copy recorded 1st half block */
+ memcpy((uint16_t *)(AUDIO_BUFFER_OUT), (uint16_t *)(AUDIO_BUFFER_IN), AUDIO_BLOCK_SIZE);
+
+ /* Wait end of one block recording */
+ while (audio_rec_buffer_state == BUFFER_OFFSET_FULL) {
+ }
+ audio_rec_buffer_state = BUFFER_OFFSET_NONE;
+
+ /* Copy recorded 2nd half block */
+ memcpy((uint16_t *)(AUDIO_BUFFER_OUT + (AUDIO_BLOCK_SIZE)), (uint16_t *)(AUDIO_BUFFER_IN + (AUDIO_BLOCK_SIZE)), AUDIO_BLOCK_SIZE);
+ }
+}
+
+
+/*-------------------------------------------------------------------------------------
+ Callbacks implementation:
+ the callbacks API are defined __weak in the stm32746g_discovery_audio.c file
+ and their implementation should be done in the user code if they are needed.
+ Below some examples of callback implementations.
+ -------------------------------------------------------------------------------------*/
+/**
+ * @brief Manages the DMA Transfer complete interrupt.
+ * @param None
+ * @retval None
+ */
+void BSP_AUDIO_IN_TransferComplete_CallBack(void)
+{
+ audio_rec_buffer_state = BUFFER_OFFSET_FULL;
+}
+
+/**
+ * @brief Manages the DMA Half Transfer complete interrupt.
+ * @param None
+ * @retval None
+ */
+void BSP_AUDIO_IN_HalfTransfer_CallBack(void)
+{
+ audio_rec_buffer_state = BUFFER_OFFSET_HALF;
+}
+
+/**
+ * @brief Audio IN Error callback function.
+ * @param None
+ * @retval None
+ */
+void BSP_AUDIO_IN_Error_CallBack(void)
+{
+ printf("BSP_AUDIO_IN_Error_CallBack\n");
+}
diff -r 000000000000 -r c8a59680e1a0 mbed-os.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed-os.lib Thu Jan 30 12:29:54 2020 +0000 @@ -0,0 +1,1 @@ +https://github.com/ARMmbed/mbed-os/#699372421a3b388fe568e9be85b1a985749a438f