dmatoflash.c

CC2430无线语音测试代码。两结点间通讯。IAR开发环境的工程文件。

/******************************************************************************
*                                                                             *
*        **********                                                           *
*       ************                                                          *
*      ***        ***                                                         *
*     ***    ++    ***                                                        *
*     ***   +  +   ***                      CHIPCON                           *
*     ***   +                                                                 *
*     ***   +  +   ***                                                        *
*     ***    ++    ***                                                        *
*      ***        ***                                                         *
*       ************                                                          *
*        **********                                                           *
*                                                                             *
*******************************************************************************

Filename:     dmaToFlash.c
Target:       cc2430
Author:       EFU
Revised:      16/12-2005
Revision:     1.0
******************************************************************************/

#include "cul.h"

//-----------------------------------------------------------------------------
// See cul.h for a description of this function.
//-----------------------------------------------------------------------------
void culDMAToFlash(DMA_DESC* pDmaChannel, BYTE __xdata* pSrcAddr, WORD length, BOOL generateInterrupt){

   while(length & 0x0003){
      length++;
   }

   SET_WORD(pDmaChannel->SRCADDRH, pDmaChannel->SRCADDRL,   pSrcAddr); // The start address of the segment
   SET_WORD(pDmaChannel->DESTADDRH, pDmaChannel->DESTADDRL, &X_FWDATA); // Input of the AES module
   SET_WORD(pDmaChannel->LENH, pDmaChannel->LENL, length); // Setting the length of the transfer (bytes)
   pDmaChannel->VLEN       = VLEN_USE_LEN;                 // Using the length field
   pDmaChannel->PRIORITY   = PRI_HIGH;                     // High priority
   pDmaChannel->M8         = M8_USE_8_BITS;                // Transferring all 8 bits in each byte.
   pDmaChannel->IRQMASK    = generateInterrupt;            // The DMA complete interrupt flag is set at completion.
   pDmaChannel->DESTINC    = DESTINC_0;                    // The destination address is constant
   pDmaChannel->SRCINC     = SRCINC_1;                     // The address for data fetch is inremented by 1 byte
   // after each transfer.
   pDmaChannel->TRIG       = DMATRIG_FLASH;                // Setting the FLAH module to generate the DMA trigger
   pDmaChannel->TMODE      = TMODE_SINGLE;                 // A single byte is transferred each time.
   pDmaChannel->WORDSIZE   = WORDSIZE_BYTE;                // One byte is transferred each time.


   return;
}