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这是单板上DPRAM的驱动程序

#include <icontrol/mpc8xx.h>
#include <icontrol/pda8xx.h>
typedef struct {
    UCHAR *Src;
    UCHAR *Dst;
    ULONG Size; 
    }SDCMemAccessStruct;

#define SDN_MISC     1  /* Misc functins */
#define SDN_OM       2  /* Omu o&m channel from abis */
#define SDN_SIG1     3  /* Fu signal channel */
#define SDN_SIG2     4  /* Fu signal channel 2 */
#define SDN_MMI      5  /* MMI interface */
#define SDN_UART     6  /* Uart interface for other RS232 functions */
#define SDN_FLASH    7  /* For flash access */
#define SDN_BUS1     8  /* For High rate bus */
#define SDN_BUS2     9  /* For Low rate bus */
#define SDN_FN      10  /* for Frame number */

#define SDB_SDEV_PUB 0
#define SDB_SDEV     0
#define SDB_ADSMISC   10000
#define SDB_EBIEMISC  20000
#define SDB_BOSNMISC  30000
#define SDB_BSPPLL    40000
#define SDB_BSPSPI    50000
#define SDB_DS1620    60000
#define SDB_FLASH16   70000
#define SDB_FLASH32   80000
#define SDB_FUCMISC   90000
#define SDB_HDLC     100000
#define SDB_LINK     110000
#define SDB_MT8980   120000
#define SDB_MT90820  130000
#define SDB_OMUMISC  140000
#define SDB_PEB2254  150000
#define SDB_QMC      160000
#define SDB_QMCSW    170000
#define SDB_SCCUART  180000
#define SDB_SCUMISC  190000
#define SDB_SCUNIUC  200000
#define SDB_SCUSPI   210000
#define SDB_UART     220000
#define SDB_AUCMISC  230000
#define SDB_BSPI2C   240000
#define SDB_ATMELI2C 250000
#define SDB_GPPMISC  260000
#define SDB_MT90826  270000
#define SDB_BRPMISC  280000
#define SDB_AT24CXX  290000
#define SDB_UART485  300000
#define SDB_MT8985   310000
#define SDB_TPUMISC  320000
#define SDB_CMMMISC  330000
#define SDB_DS21x54  340000