/**
* @brief Manages Audio process.
* @param None
* @retval Audio error
*/
AUDIO_ErrorTypeDef AUDIO_Process(void)
{
uint32_t bytesread, elapsed_time;
AUDIO_ErrorTypeDef audio_error = AUDIO_ERROR_NONE;
static uint32_t prev_elapsed_time = 0xFFFFFFFF;
uint8_t str[10];
switch(AudioState)
{
case AUDIO_STATE_PLAY:
if(BufferCtl.fptr >= WaveFormat.FileSize)
{
BSP_AUDIO_OUT_Stop(CODEC_PDWN_SW);
AudioState = AUDIO_STATE_NEXT;
}
if(BufferCtl.offset == BUFFER_OFFSET_HALF)
{
if(f_read(&WavFile,
&BufferCtl.buff[0],
AUDIO_BUFFER_SIZE/2,
(void *)&bytesread) != FR_OK)
{
BSP_AUDIO_OUT_Stop(CODEC_PDWN_SW);
return AUDIO_ERROR_IO;
}
BufferCtl.offset = BUFFER_OFFSET_NONE;
BufferCtl.fptr += bytesread;
}
if(BufferCtl.offset == BUFFER_OFFSET_FULL)
{
if(f_read(&WavFile,
&BufferCtl.buff[AUDIO_BUFFER_SIZE /2],
AUDIO_BUFFER_SIZE/2,
(void *)&bytesread) != FR_OK)
{
BSP_AUDIO_OUT_Stop(CODEC_PDWN_SW);
return AUDIO_ERROR_IO;
}
BufferCtl.offset = BUFFER_OFFSET_NONE;
BufferCtl.fptr += bytesread;
}
/* Display elapsed time */
elapsed_time = BufferCtl.fptr / WaveFormat.ByteRate;
if(prev_elapsed_time != elapsed_time)
{
prev_elapsed_time = elapsed_time;
sprintf((char *)str, "[%02d:%02d]", (int)(elapsed_time /60), (int)(elapsed_time%60));
BSP_LCD_SetTextColor(LCD_COLOR_CYAN);
BSP_LCD_DisplayStringAt(263, LINE(8), str, LEFT_MODE);
BSP_LCD_SetTextColor(LCD_COLOR_WHITE);
}
break;
case AUDIO_STATE_STOP:
BSP_AUDIO_OUT_Stop(CODEC_PDWN_SW);
AudioState = AUDIO_STATE_IDLE;
audio_error = AUDIO_ERROR_IO;
break;
case AUDIO_STATE_NEXT:
if(++FilePos >= AUDIO_GetWavObjectNumber())
{
FilePos = 0;
}
BSP_AUDIO_OUT_Stop(CODEC_PDWN_SW);
AUDIO_Start(FilePos);
break;
case AUDIO_STATE_PREVIOUS:
if(--FilePos < 0)
{
FilePos = AUDIO_GetWavObjectNumber() - 1;
}
BSP_AUDIO_OUT_Stop(CODEC_PDWN_SW);
AUDIO_Start(FilePos);
break;
case AUDIO_STATE_PAUSE:
BSP_LCD_DisplayStringAt(250, LINE(14), (uint8_t *)" [PAUSE]", LEFT_MODE);
BSP_AUDIO_OUT_Pause();
AudioState = AUDIO_STATE_WAIT;
break;
case AUDIO_STATE_RESUME:
BSP_LCD_DisplayStringAt(250, LINE(14), (uint8_t *)" [PLAY ]", LEFT_MODE);
BSP_AUDIO_OUT_Resume();
AudioState = AUDIO_STATE_PLAY;
break;
case AUDIO_STATE_VOLUME_UP:
if( uwVolume <= 90)
{
uwVolume += 10;
}
BSP_AUDIO_OUT_SetVolume(uwVolume);
AudioState = AUDIO_STATE_PLAY;
break;
case AUDIO_STATE_VOLUME_DOWN:
if( uwVolume >= 10)
{
uwVolume -= 10;
}
BSP_AUDIO_OUT_SetVolume(uwVolume);
AudioState = AUDIO_STATE_PLAY;
break;
case AUDIO_STATE_WAIT:
case AUDIO_STATE_CONFIG:
case AUDIO_STATE_IDLE:
case AUDIO_STATE_INIT:
default:
/* Do Nothing */
break;
}
return audio_error;
}
/**
* @brief Manages Audio process.
* @param None
* @retval Audio error
*/
AUDIO_ErrorTypeDef AUDIO_Process(void)
{
uint32_t bytesread, elapsed_time;
static uint32_t prev_elapsed_time = 0xFFFFFFFF;
uint8_t str[10];
AUDIO_ErrorTypeDef error_state = AUDIO_ERROR_NONE;
switch(audio_state)
{
case AUDIO_STATE_PLAY:
if(buffer_ctl.fptr >= wav_info.FileSize)
{
error_state = AUDIO_ERROR_EOF;
}
if(buffer_ctl.offset == BUFFER_OFFSET_HALF)
{
if(MTP_GetData(file_pos,
buffer_ctl.fptr,
AUDIO_BUFFER_SIZE /2,
&buffer_ctl.buff[0],
&bytesread)> 0)
{
error_state = AUDIO_ERROR_IO;
}
buffer_ctl.offset = BUFFER_OFFSET_NONE;
buffer_ctl.fptr += bytesread;
}
if(buffer_ctl.offset == BUFFER_OFFSET_FULL)
{
if(MTP_GetData(file_pos,
buffer_ctl.fptr,
AUDIO_BUFFER_SIZE /2,
&buffer_ctl.buff[AUDIO_BUFFER_SIZE /2],
&bytesread)> 0)
{
error_state = AUDIO_ERROR_IO;
}
buffer_ctl.offset = BUFFER_OFFSET_NONE;
buffer_ctl.fptr += bytesread;
}
/* Display elapsed time */
elapsed_time = buffer_ctl.fptr / wav_info.ByteRate;
if(prev_elapsed_time != elapsed_time)
{
prev_elapsed_time = elapsed_time;
sprintf((char *)str, "[%02lu:%02lu]", elapsed_time /60, elapsed_time%60);
BSP_LCD_SetTextColor(LCD_COLOR_CYAN);
BSP_LCD_DisplayStringAt(263, LINE(8), str, LEFT_MODE);
BSP_LCD_SetTextColor(LCD_COLOR_WHITE);
}
break;
case AUDIO_STATE_STOP:
BSP_AUDIO_OUT_Stop(CODEC_PDWN_SW);
audio_state = AUDIO_STATE_IDLE;
error_state = AUDIO_ERROR_IO;
break;
case AUDIO_STATE_NEXT:
if(++file_pos >= MTP_GetWavObjectNumber())
{
file_pos = 0;
}
BSP_AUDIO_OUT_Stop(CODEC_PDWN_SW);
AUDIO_Start(file_pos);
break;
case AUDIO_STATE_PREVIOUS:
if(--file_pos < 0)
{
file_pos = MTP_GetWavObjectNumber() - 1;
}
BSP_AUDIO_OUT_Stop(CODEC_PDWN_SW);
AUDIO_Start(file_pos);
break;
case AUDIO_STATE_PAUSE:
BSP_LCD_DisplayStringAt(250, LINE(14), (uint8_t *)" [PAUSE]", LEFT_MODE);
BSP_AUDIO_OUT_Pause();
audio_state = AUDIO_STATE_WAIT;
break;
case AUDIO_STATE_RESUME:
BSP_LCD_DisplayStringAt(250, LINE(14), (uint8_t *)" [PLAY ]", LEFT_MODE);
BSP_AUDIO_OUT_Resume();
audio_state = AUDIO_STATE_PLAY;
break;
case AUDIO_STATE_VOLUME_UP:
if(uwVolume <= 90)
{
uwVolume += 10;
}
BSP_AUDIO_OUT_SetVolume(uwVolume);
audio_state = AUDIO_STATE_PLAY;
break;
case AUDIO_STATE_VOLUME_DOWN:
if(uwVolume >= 10)
{
uwVolume -= 10;
}
BSP_AUDIO_OUT_SetVolume(uwVolume);
audio_state = AUDIO_STATE_PLAY;
break;
case AUDIO_STATE_WAIT:
case AUDIO_STATE_CONFIG:
case AUDIO_STATE_IDLE:
case AUDIO_STATE_INIT:
default:
/* Do Nothing */
break;
}
return error_state;
}
/**
* @brief Audio Play demo
* @param None
* @retval None
*/
void AudioRec_demo (void)
{
uint16_t NbRecord_done = 0;
uint8_t FreqStr[256] = {0};
AudioRec_State = REC_NONE_STATE;
buffer_ctl.rec_length = 0;
/* Initialize AudioRecFullBuff at the address of the audio_play reader */
AudioRecFullBuff_addr = AUDIO_REC_START_ADDR;
AudioRec_SetHint();
#ifdef JOYSTICK
/* Initialize Joystick */
if (BSP_JOY_Init(JOY_MODE_GPIO) != IO_OK)
{
BSP_LCD_SetBackColor(LCD_COLOR_WHITE);
BSP_LCD_SetTextColor(LCD_COLOR_RED);
BSP_LCD_DisplayStringAt(0, BSP_LCD_GetYSize() - 95, (uint8_t *)"ERROR", CENTER_MODE);
BSP_LCD_DisplayStringAt(0, BSP_LCD_GetYSize() - 80, (uint8_t *)"Joystick cannot be initialized", CENTER_MODE);
}
#endif
/* Initialize Audio Recorder */
if (BSP_AUDIO_IN_Init(DEFAULT_AUDIO_IN_FREQ, DEFAULT_AUDIO_IN_BIT_RESOLUTION, DEFAULT_AUDIO_IN_CHANNEL_NBR) == AUDIO_OK)
{
AudioRec_State = REC_RESET_STATE;
BSP_LCD_SetBackColor(LCD_COLOR_WHITE);
BSP_LCD_SetTextColor(LCD_COLOR_GREEN);
BSP_LCD_DisplayStringAt(0, BSP_LCD_GetYSize() - 95, (uint8_t *)" AUDIO RECORD INIT OK ", CENTER_MODE);
}
else
{
AudioRec_State = REC_ERROR_STATE;
BSP_LCD_SetBackColor(LCD_COLOR_WHITE);
BSP_LCD_SetTextColor(LCD_COLOR_RED);
BSP_LCD_DisplayStringAt(0, BSP_LCD_GetYSize() - 95, (uint8_t *)" AUDIO RECORD INIT FAIL", CENTER_MODE);
BSP_LCD_DisplayStringAt(0, BSP_LCD_GetYSize() - 80, (uint8_t *)" Try to reset board ", CENTER_MODE);
}
/* Infinite loop */
while (buffer_ctl.rec_length < AUDIO_REC_TOTAL_SIZE)
{
BSP_LCD_SetBackColor(LCD_COLOR_WHITE);
BSP_LCD_SetTextColor(LCD_COLOR_BLUE);
if (buffer_ctl.it_state == TRANSFER_HALF)
{
/* PDM to PCM data convert */
BSP_AUDIO_IN_PDMToPCM((uint16_t*)&buffer_ctl.pdm_buff[0],
&buffer_ctl.pcm_buff[buffer_ctl.pcm_ptr]);
buffer_ctl.pcm_ptr+= AUDIO_IN_PDM_BUFFER_SIZE/4/2;
if(buffer_ctl.pcm_ptr == AUDIO_IN_PCM_BUFFER_SIZE/2)
{
buffer_ctl.wr_state = BUFFER_FULL;
buffer_ctl.offset = 0;
}
if(buffer_ctl.pcm_ptr >= AUDIO_IN_PCM_BUFFER_SIZE)
{
buffer_ctl.wr_state = BUFFER_FULL;
buffer_ctl.offset = AUDIO_IN_PCM_BUFFER_SIZE/2;
buffer_ctl.pcm_ptr = 0;
}
buffer_ctl.it_state = TRANSFER_NONE;
}
if (buffer_ctl.it_state == TRANSFER_FULL)
{
/* PDM to PCM data convert */
if (BSP_AUDIO_IN_PDMToPCM((uint16_t*)&buffer_ctl.pdm_buff[INTERNAL_BUFF_SIZE/2], &buffer_ctl.pcm_buff[buffer_ctl.pcm_ptr]) == 0)
{
buffer_ctl.pcm_ptr+= AUDIO_IN_PDM_BUFFER_SIZE/4/2;
if(buffer_ctl.pcm_ptr == AUDIO_IN_PCM_BUFFER_SIZE/2)
{
buffer_ctl.wr_state = BUFFER_FULL;
buffer_ctl.offset = 0;
}
if(buffer_ctl.pcm_ptr >= AUDIO_IN_PCM_BUFFER_SIZE)
{
buffer_ctl.wr_state = BUFFER_FULL;
buffer_ctl.offset = AUDIO_IN_PCM_BUFFER_SIZE/2;
buffer_ctl.pcm_ptr = 0;
}
}
buffer_ctl.it_state = TRANSFER_NONE;
NbRecord_done++;
}
/* PCM buffer is full, copy it into the record_file */
if (buffer_ctl.wr_state == BUFFER_FULL)
{
memcpy((uint32_t *)AudioRecFullBuff_addr, (uint8_t*)(buffer_ctl.pcm_buff + buffer_ctl.offset), AUDIO_IN_PCM_BUFFER_SIZE);
AudioRecFullBuff_addr += AUDIO_IN_PCM_BUFFER_SIZE;
buffer_ctl.rec_length += AUDIO_IN_PCM_BUFFER_SIZE;
buffer_ctl.wr_state = BUFFER_EMPTY;
}
#ifdef JOYSTICK
/* Get the Joystick State */
JoyState = BSP_JOY_GetState();
switch (JoyState)
{
case JOY_SEL:
#endif
if (AudioRec_State == REC_RESET_STATE)
{
/* Display the state on the screen */
BSP_LCD_SetBackColor(LCD_COLOR_WHITE);
BSP_LCD_SetTextColor(LCD_COLOR_BLUE);
BSP_LCD_DisplayStringAt(0, BSP_LCD_GetYSize() - 80, (uint8_t *)" RECORDING... ", CENTER_MODE);
/* Start Recording */
buffer_ctl.rec_length = 0;
buffer_ctl.wr_state = BUFFER_EMPTY;
buffer_ctl.it_state = TRANSFER_NONE;
BSP_AUDIO_IN_Record((uint16_t*)&buffer_ctl.pdm_buff[0], INTERNAL_BUFF_SIZE);
AudioRec_State = RECORD_ONGOING;
}
#ifdef JOYSTICK
break;
default:
break;
}
#endif
if (CheckForUserInput() > 0)
{
/* Stop recorder and exit the test (go to next test) */
BSP_AUDIO_IN_Stop();
return;
}
}
/* Stop recorder once buffer_ctl.rec_length < AUDIO_REC_TOTAL_SIZE*/
BSP_AUDIO_IN_Stop();
BSP_LCD_SetBackColor(LCD_COLOR_WHITE);
BSP_LCD_SetTextColor(LCD_COLOR_BLUE);
sprintf((char*)FreqStr, "RECORDING DONE, %d frames, START PLAYBACK", NbRecord_done);
BSP_LCD_DisplayStringAt(0, BSP_LCD_GetYSize() - 65, (uint8_t *)FreqStr, CENTER_MODE);
NbRecord_done = buffer_ctl.rec_length / (DEFAULT_AUDIO_IN_FREQ * DEFAULT_AUDIO_IN_CHANNEL_NBR * 2);
sprintf((char*)FreqStr, "Elapsed_time: %d frames", NbRecord_done);
BSP_LCD_DisplayStringAt(0, BSP_LCD_GetYSize() - 45, (uint8_t *)FreqStr, CENTER_MODE);
/* -----------Start Playback -------------- */
/* Initialize audio IN at REC_FREQ*/
if(BSP_AUDIO_OUT_Init(OUTPUT_DEVICE_HEADPHONE, 95, DEFAULT_AUDIO_IN_FREQ/2) == 0)
{
BSP_LCD_SetBackColor(LCD_COLOR_WHITE);
BSP_LCD_SetTextColor(LCD_COLOR_GREEN);
BSP_LCD_DisplayStringAt(0, BSP_LCD_GetYSize() - 95, (uint8_t *)" AUDIO CODEC OK ", CENTER_MODE);
}
else
{
BSP_LCD_SetBackColor(LCD_COLOR_WHITE);
BSP_LCD_SetTextColor(LCD_COLOR_RED);
BSP_LCD_DisplayStringAt(0, BSP_LCD_GetYSize() - 95, (uint8_t *)" AUDIO CODEC FAIL ", CENTER_MODE);
BSP_LCD_DisplayStringAt(0, BSP_LCD_GetYSize() - 80, (uint8_t *)" Try to reset board ", CENTER_MODE);
}
/* Play the recorded buffer*/
if(AUDIO_Play_Start((uint32_t *)AUDIO_REC_START_ADDR, (uint32_t)AUDIO_REC_TOTAL_SIZE) == 0)
{
BSP_LCD_SetBackColor(LCD_COLOR_WHITE);
BSP_LCD_SetTextColor(LCD_COLOR_GREEN);
BSP_LCD_DisplayStringAt(0, BSP_LCD_GetYSize() - 95, (uint8_t *)" AUDIO PLAYBACK OK ", CENTER_MODE);
} else
{
BSP_LCD_SetBackColor(LCD_COLOR_WHITE);
BSP_LCD_SetTextColor(LCD_COLOR_RED);
BSP_LCD_DisplayStringAt(0, BSP_LCD_GetYSize() - 95, (uint8_t *)" AUDIO PLAYBACK FAIL ", CENTER_MODE);
}
BSP_LCD_DisplayStringAt(0, BSP_LCD_GetYSize() - 25, (uint8_t *)"PLAYBACK DONE", CENTER_MODE);
while (1)
{
/* Toggle LED4 */
BSP_LED_Toggle(LED4);
/* Insert 100 ms delay */
HAL_Delay(100);
if (CheckForUserInput() > 0)
{
/* Set LED4 */
BSP_LED_On(LED4);
/* Stop recorder */
BSP_AUDIO_IN_Stop();
/* Stop Player before close Test */
BSP_AUDIO_OUT_Stop(CODEC_PDWN_SW);
return;
}
}
}
/**
* @brief Starts Wave player.
* @param None
* @retval None
*/
void WavePlayerStart(WAVE_FormatTypeDef waveformat,
WavePlayer_getDataCB_type getDataCB,
uint8_t volume)
{
int32_t bytesread = 0;
int32_t length;
int16_t *pBuf = NULL;
uint32_t AudioRemSize = 0;
uint32_t WaveDataLength = 0;
/* Set WaveDataLenght to the Speech Wave length */
WaveDataLength = waveformat.FileSize;
AudioRemSize = WaveDataLength - sizeof(WAVE_FormatTypeDef);
/* Initialize Wave player (Codec, DMA, I2C) */
if (BSP_AUDIO_OUT_Init(OUTPUT_DEVICE_AUTO, volume, waveformat.SampleRate) != 0)
{
Error_Handler();
}
/* Start playing Wave */
BSP_AUDIO_OUT_Play((uint16_t*)&Audio_BufferStereo[0], sizeof(Audio_BufferStereo));
// LEDsState = LED6_TOGGLE;
/* Toggling LED6 to signal Play */
// LEDsState = LED6_TOGGLE;
/* Resume playing Wave */
BSP_AUDIO_OUT_Resume();
if (CHANNEL_MONO == waveformat.NbrChannels)
{
length = AUDIO_BUFFER_STEREO_LENGTH/4;
}
else
{
length = AUDIO_BUFFER_STEREO_LENGTH/2;
}
while (AudioRemSize > 0)
{
if (BUFFER_OFFSET_HALF == BufferOffset)
{
pBuf = &Audio_BufferStereo[0];
}
if (BUFFER_OFFSET_FULL == BufferOffset)
{
pBuf = &Audio_BufferStereo[AUDIO_BUFFER_STEREO_LENGTH/2];
}
if (NULL != pBuf)
{
bytesread = getDataCB(pBuf, length);
if (CHANNEL_MONO == waveformat.NbrChannels)
{
convertToStereo(pBuf, pBuf, length);
}
BufferOffset = BUFFER_OFFSET_NONE;
pBuf = NULL;
if (bytesread <= 0)
{
AudioRemSize = 0;
}
else
{
AudioRemSize -= bytesread;
if (AudioRemSize < (length*2))
{
AudioRemSize = 0;
}
}
}
}
LEDsState = LEDS_OFF;
BSP_AUDIO_OUT_Stop(CODEC_PDWN_HW);
}
/**
* @brief Stops playing Wave.
* @param None
* @retval None
*/
void WavePlayerStop(void)
{
BSP_AUDIO_OUT_Stop(CODEC_PDWN_HW);
}
/**
* @brief Audio Play demo
* @param None
* @retval None
*/
void AudioPlay_demo (void)
{
uint32_t *AudioFreq_ptr;
uint8_t status = 0;
uint8_t FreqStr[256] = {0};
AudioFreq_ptr = AudioFreq+6; /*AF_48K*/
uwPauseEnabledStatus = 1; /* 0 when audio is running, 1 when Pause is on */
uwVolume = 50;
Audio_SetHint();
status = BSP_JOY_Init(JOY_MODE_GPIO);
if (status != IO_OK)
{
BSP_LCD_SetBackColor(LCD_COLOR_WHITE);
BSP_LCD_SetTextColor(LCD_COLOR_RED);
BSP_LCD_DisplayStringAt(0, BSP_LCD_GetYSize()- 100, (uint8_t *)"ERROR", CENTER_MODE);
BSP_LCD_DisplayStringAt(0, BSP_LCD_GetYSize()- 85, (uint8_t *)"Joystick cannot be initialized", CENTER_MODE);
}
if(BSP_AUDIO_OUT_Init(OUTPUT_DEVICE_BOTH, uwVolume, *AudioFreq_ptr) == 0)
{
BSP_LCD_SetBackColor(LCD_COLOR_WHITE);
BSP_LCD_SetTextColor(LCD_COLOR_GREEN);
BSP_LCD_DisplayStringAt(0, BSP_LCD_GetYSize()- 100, (uint8_t *)" AUDIO CODEC OK ", CENTER_MODE);
}
else
{
BSP_LCD_SetBackColor(LCD_COLOR_WHITE);
BSP_LCD_SetTextColor(LCD_COLOR_RED);
BSP_LCD_DisplayStringAt(0, BSP_LCD_GetYSize()- 100, (uint8_t *)" AUDIO CODEC FAIL ", CENTER_MODE);
BSP_LCD_DisplayStringAt(0, BSP_LCD_GetYSize()- 85, (uint8_t *)" Try to reset board ", CENTER_MODE);
}
/*
Start playing the file from a circular buffer, once the DMA is enabled, it is
always in running state. Application has to fill the buffer with the audio data
using Transfer complete and/or half transfer complete interrupts callbacks
(EVAL_AUDIO_TransferComplete_CallBack() or EVAL_AUDIO_HalfTransfer_CallBack()...
*/
AUDIO_Start();
/* Display the state on the screen */
BSP_LCD_SetBackColor(LCD_COLOR_WHITE);
BSP_LCD_SetTextColor(LCD_COLOR_BLUE);
BSP_LCD_DisplayStringAt(0, BSP_LCD_GetYSize()- 85, (uint8_t *)" PLAYING... ", CENTER_MODE);
sprintf((char*)FreqStr," VOL: %lu ",uwVolume);
BSP_LCD_DisplayStringAt(0, BSP_LCD_GetYSize()- 55, (uint8_t *)FreqStr, CENTER_MODE);
sprintf((char*)FreqStr," FREQ: %lu ",*AudioFreq_ptr);
BSP_LCD_DisplayStringAt(0, BSP_LCD_GetYSize()- 40, (uint8_t *)FreqStr, CENTER_MODE);
/* IMPORTANT:
AUDIO_Process() is called by the SysTick Handler, as it should be called
within a periodic process */
/* Infinite loop */
while(1)
{
BSP_LCD_SetBackColor(LCD_COLOR_WHITE);
BSP_LCD_SetTextColor(LCD_COLOR_BLUE);
/* Get the Joystick State */
JoyState = BSP_JOY_GetState();
switch(JoyState)
{
case JOY_UP:
/* Increase volume by 5% */
if (uwVolume < 95)
uwVolume += 5;
else
uwVolume = 100;
sprintf((char*)FreqStr," VOL: %lu ",uwVolume);
BSP_AUDIO_OUT_SetVolume(uwVolume);
BSP_LCD_DisplayStringAt(0, BSP_LCD_GetYSize()- 55, (uint8_t *)FreqStr, CENTER_MODE);
BSP_LCD_DisplayStringAt(0, LINE(14), (uint8_t *)" ", CENTER_MODE);
break;
case JOY_DOWN:
/* Decrease volume by 5% */
if (uwVolume > 5)
uwVolume -= 5;
else
uwVolume = 0;
sprintf((char*)FreqStr," VOL: %lu ",uwVolume);
BSP_AUDIO_OUT_SetVolume(uwVolume);
BSP_LCD_DisplayStringAt(0, BSP_LCD_GetYSize()- 55, (uint8_t *)FreqStr, CENTER_MODE);
BSP_LCD_DisplayStringAt(0, LINE(14), (uint8_t *)" ", CENTER_MODE);
break;
case JOY_LEFT:
/*Decrease Frequency */
if (*AudioFreq_ptr != 8000)
{
AudioFreq_ptr--;
sprintf((char*)FreqStr," FREQ: %lu ", *AudioFreq_ptr);
BSP_AUDIO_OUT_Pause();
BSP_AUDIO_OUT_SetFrequency(*AudioFreq_ptr);
BSP_AUDIO_OUT_Resume();
}
BSP_LCD_DisplayStringAt(0, BSP_LCD_GetYSize()- 40, (uint8_t *)FreqStr, CENTER_MODE);
BSP_LCD_DisplayStringAt(0, LINE(14), (uint8_t *)" ", CENTER_MODE);
break;
case JOY_RIGHT:
/* Increase Frequency */
if (*AudioFreq_ptr != 96000)
{
AudioFreq_ptr++;
sprintf((char*)FreqStr," FREQ: %lu ",*AudioFreq_ptr);
BSP_AUDIO_OUT_Pause();
BSP_AUDIO_OUT_SetFrequency(*AudioFreq_ptr);
BSP_AUDIO_OUT_Resume();
}
BSP_LCD_DisplayStringAt(0, BSP_LCD_GetYSize()- 40, (uint8_t *)FreqStr, CENTER_MODE);
BSP_LCD_DisplayStringAt(0, LINE(14), (uint8_t *)" ", CENTER_MODE);
break;
case JOY_SEL:
/* Set Pause / Resume */
if (uwPauseEnabledStatus == 1)
{ /* Pause is enabled, call Resume */
BSP_AUDIO_OUT_Resume();
uwPauseEnabledStatus = 0;
BSP_LCD_DisplayStringAt(0, BSP_LCD_GetYSize()- 85, (uint8_t *)" PLAYING... ", CENTER_MODE);
} else
{ /* Pause the playback */
BSP_AUDIO_OUT_Pause();
uwPauseEnabledStatus = 1;
BSP_LCD_DisplayStringAt(0, BSP_LCD_GetYSize()- 85, (uint8_t *)" PAUSE ... ", CENTER_MODE);
}
BSP_LCD_DisplayStringAt(0, LINE(14), (uint8_t *)" ", CENTER_MODE);
HAL_Delay(200);
break;
default:
break;
}
/* Toggle LED3 */
BSP_LED_Toggle(LED3);
/* Insert 100 ms delay */
HAL_Delay(100);
/* Toggle LED2 */
BSP_LED_Toggle(LED2);
/* Insert 100 ms delay */
HAL_Delay(100);
if(CheckForUserInput() > 0)
{
BSP_AUDIO_OUT_Stop(CODEC_PDWN_SW);
BSP_AUDIO_OUT_DeInit();
return;
}
}
}
