6410  + wince6.0 写了一个SPI驱动读取到的数据是错的，请各位帮忙看看问题在哪？

#include <windows.h>
#include <ceddk.h>
#include <nkintr.h>
#include <DrvLib.h>

//#include "oal_intr.h"
#include <s3c6410.h>    // for 6410

//#include <s3c6410_gpio.h>
//#include <s3c6410_base_regs.h>
//#include <s3c6410_spi.h>

//#include "pmplatform.h"
//#include "Pkfuncs.h"
//#include <bsp.h>
#include "SPI.h"

#define SPI0_POWER_ON          (1<<21)
#define SPI1_POWER_ON          (1<<22)
#define SPI_SCLK_ON           (1<<20)
#define    CPOL_RISING        (0<<3)
#define    CPOL_FALLING        (1<<3)
#define    CPHA_FORMAT_A        (0<<2)
#define    CPHA_FORMAT_B        (1<<2)
#define HIGH_SPEED_MASK        (1<<6)
#define HIGH_SPEED_DIS        (0<<6)
#define HIGH_SPEED_EN        (1<<6)
#define SPI_CLKSEL           (0<<9)
#define SPI_ENCLK            (1<<8)
#define SPI_SCALER           (0x07)
#define MODE_DEFAULT         0x00000000
#define    SW_RST                (1<<5)
#define    SPI_MASTER            (0<<4)
#define    SPI_SLAVE            (1<<4)
#define    ENCLK_DISABLE        (0<<8)

#define CH_WIDTH_16BIT             (0x1<<29)
#define BUS_WIDTH_16BIT            (0x1<<17)
#define CH_WIDTH_32BIT             (0x2<<29)
#define BUS_WIDTH_32BIT            (0xe<<17)

#define SPI0                0
#define SPI1                1
#define SPI_SELECT          SPI1

volatile S3C6410_GPIO_REG     *pGPIOregs;
volatile S3C6410_SPI_REG           *pSPIregs;  
volatile S3C6410_SYSCON_REG     *pSYSCONregs;
int g_iBusWidth=8; //位宽,8/16/32

PUCHAR readtempUCHAR; //8bit
PUCHAR writetempUCHAR; //8bit

PUSHORT readtempUSHORT; //16bit
PUSHORT writetempUSHORT; //16bit

PULONG readtempULONG; //32bit
PULONG writetempULONG; //32bit

BOOL WINAPI  
DllEntry(HANDLE    hinstDLL,
         DWORD dwReason,
         LPVOID  Reserved/* lpvReserved */)
{
    switch(dwReason)
    {
    case DLL_PROCESS_ATTACH:
        DEBUGREGISTER((HINSTANCE)hinstDLL);
        break;
    case DLL_THREAD_ATTACH:
        break;
    case DLL_THREAD_DETACH:
        break;
    case DLL_PROCESS_DETACH:
        break;
#ifdef UNDER_CE
    case DLL_PROCESS_EXITING:
        break;
    case DLL_SYSTEM_STARTED:
        break;
#endif
    }

    return TRUE;
}