dmatoradio.c

CC1110点对多点FDMA传输方式C源码

/******************************************************************************
*                                                                             *
*    ****       ******       ****
*     ****     ********     ****
*      ****   ****  ****   ****
*       **** ****    **** ****              wxl
*        *******      *******
*         *****        *****                    成都无线龙通讯科技有限公司
*                                                                             *
*******************************************************************************
Target:       cc1110                          使用芯片:       cc1110
Author:       WXL                             程 序 员：      无线龙
data:         1/12-2007                       日    期：      1/12-2007
******************************************************************************/
/**********************************头文件**************************************/

#include "cul.h"

//-----------------------------------------------------------------------------
// See cul.h for a description of this function.
//-----------------------------------------------------------------------------
void culDmaToRadio(DMA_DESC* pDmaChannel, WORD length, BYTE* pSrcAddr, BOOL generateInterrupt){
   SET_WORD(pDmaChannel->SRCADDRH, pDmaChannel->SRCADDRL,   pSrcAddr); // The start address of the segment
   SET_WORD(pDmaChannel->DESTADDRH, pDmaChannel->DESTADDRL, &X_RFD);   // Tx FIFO address
   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_LOW;
   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_RADIO;                         // DMA is started by writing the radio
   pDmaChannel->TMODE          = TMODE_SINGLE;                          // Byte for byte is transferred.
   pDmaChannel->WORDSIZE       = WORDSIZE_BYTE;                        // One byte is transferred each time.

   return;
}