libuart1transmit.c

Audio compression on embedded board

/*********************************************************************
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*                       Software License Agreement                   *
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*   The software supplied herewith by Microchip Technology           *
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/******************************************************************************
**
**  Filename:     libuart1Transmit.c
**
**  System:       RISC
**
**  Platform:     dsPIC30F6014A
**
**  Description:  This file contains only the API libuart1Transmit().
**		  It retrieves data from user defined ping pong buffers and 
**                loads it into the UART U1TXREG buffer registers.
**
*******************************************************************************/

#include "p30fxxxx.h"
#include "G711Lib_common.h"

/******************************************************************************
**
**  Function Name: libuart1Transmit  ( ) 
**
**  Description:   This API is called in the main for moving data from  the user 
**                 defined ping pong buffers to the UART buffer registers U1TXREG.
**                 It accesses members of codecsetup structure. It has no outputs.
**                 The user should take care to set the UART buffer length such 
**                 that the number of samples per Block should be divisible by it.
**
*******************************************************************************/
libuart1Transmit ( )
{
  U2TXREG = ( char )( *codecdata.sampleComprsIpBuffer );
  codecdata.sampleComprsIpBuffer++;
  U2TXREG = ( char )( *codecdata.sampleComprsIpBuffer );
  codecdata.sampleComprsIpBuffer++;
  U2TXREG = ( char )( *codecdata.sampleComprsIpBuffer );
  codecdata.sampleComprsIpBuffer++;
  U2TXREG = ( char )( *codecdata.sampleComprsIpBuffer );
  codecdata.sampleComprsIpBuffer++;
}

/*-----------------------------------------------------------------------------
                              END OF FILE:  libuart1Transmit.c
------------------------------------------------------------------------------*/