voicerecorder.c

万利ARM9的STR912开发板配套资料和源代码

/******************** (C) COPYRIGHT 2006 STMicroelectronics ********************
* File Name          : voicerecorder.c
* Author             : MCD Application Team
* Date First Issued  : mm/dd/yyyy
* Description        : This file includes the voice recorder driver for the
*                      STR91x-EVAL demonstration.
********************************************************************************
* History:
* mm/dd/yyyy
********************************************************************************
* THE PRESENT SOFTWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME.
* AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT,
* INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE
* CONTENT OF SUCH SOFTWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING
* INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
*******************************************************************************/

/* Includes ------------------------------------------------------------------*/
#include "main.h"

/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/

  /* Peripherals InitStructure define */
  extern GPIO_InitTypeDef   GPIO_InitStructure;
  ADC_InitTypeDef      ADC_InitStructure;
  TIM_InitTypeDef TIM_InitStructure;
  extern vu8 SelectedWave;         /* Osiris or recorded wave playing select */

/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/

/*******************************************************************************
* Function Name  : VoiceRec_Init
* Description    : Initialize
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void VoiceRec_Init(void)
{

  /* ADC Channel 7 pin configuration */
  GPIO_ANAPinConfig(GPIO_ANAChannel7, ENABLE);

  TIM_StructInit(&TIM_InitStructure);

  /* 22.050 KHz generation */
  TIM_InitStructure.TIM_Mode = TIM_OCM_CHANNEL_1;
  TIM_InitStructure.TIM_OC1_Modes = TIM_TIMING;
  TIM_InitStructure.TIM_Clock_Source = TIM_CLK_APB;
  TIM_InitStructure.TIM_Prescaler = 0x1;
  TIM_InitStructure.TIM_Pulse_Length_1 = 0x440;

  /* Initialize the Timer 1 */
  TIM_Init (TIM1, &TIM_InitStructure);

  /* ADC configuration */
  /* ADC Structure Initialization */
  ADC_StructInit(&ADC_InitStructure);

  /* Configure the ADC in continuous mode conversion */
  ADC_InitStructure.ADC_Channel_7_Mode = ADC_NoThreshold_Conversion;
  ADC_InitStructure.ADC_Select_Channel = ADC_Channel_7;
  ADC_InitStructure.ADC_Scan_Mode = DISABLE;
  ADC_InitStructure.ADC_Conversion_Mode = ADC_Continuous_Mode;

  /* Enable the ADC */
  ADC_Cmd(ENABLE);

  /* Prescaler config */
  ADC_PrescalerConfig(0x0);

  /* Configure the ADC */
  ADC_Init(&ADC_InitStructure);
}

/*******************************************************************************
* Function Name  : VoiceRec_Start
* Description    : Start Voice recording
* Input          : None
* Output         : None
* Return         : None.
*******************************************************************************/
void VoiceRec_Start(void)
{
  /* Start the conversion */
  ADC_ConversionCmd(ADC_Conversion_Start);

  /* Enable TIM0 update interrupt */
  TIM_ITConfig(TIM1, TIM_IT_OC1, ENABLE);
  /* Start the Timer counter */
  TIM_CounterCmd(TIM1, TIM_START);

  /* Displayed when recording: to stop recording*/
  LCD_DisplayString(Line2, "Stop: in 30s/KEY ", BlackText);

}

/*******************************************************************************
* Function Name  : VoiceRec_Stop
* Description    : Stop Voice recording
* Input          : None
* Output         : None
* Return         : None.
*******************************************************************************/
void VoiceRec_Stop(void)
{
  /* Disable TIM0 update interrupt */
  TIM_ITConfig(TIM1, TIM_IT_OC1, DISABLE);
  /* Stop the Timer counter */
  TIM_CounterCmd(TIM1, TIM_STOP);
  /* Stop conversion */
  ADC_ConversionCmd(ADC_Conversion_Stop);

  /* Display " Voice REC Start " to start recording */
  LCD_DisplayString(Line2, " Voice REC Start ", BlackText);

}

/*******************************************************************************
* Function Name  : VoiceRec_SSPFLASHErase
* Description    : Erase the SSP FLASH sectors reserved for voice recording
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void VoiceRec_SSPFLASHErase(void)
{
  u32 Sect = 0;
  u8 i = 0;
  /* Stop wave playing: protect the dual SMI Flash access */
  WavePlayer_Stop();

  /* Display SMI erasing message */
  LCD_DisplayString(Line2, "Wait FLASH erase", BlackText);

  /* Erase the sector to write on */
  for(i = 0; i < 11; i++)
  {
    SSP_FLASH_SectorErase(Sect);
    Sect += 0x10000;
  }

  /* Display message to start voice recording */
  LCD_DisplayString(Line2, "Record:Press KEY", BlackText);
}
/*******************************************************************************
* Function Name  : VoiceRec_GlobalVarReset
* Description    : Resets the global variable SelectedWave.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void VoiceRec_GlobalVarReset(void)
{
  /* Reset SelectedWave for voice recording */
  SelectedWave = 0;
}

/******************* (C) COPYRIGHT 2006 STMicroelectronics *****END OF FILE****/