那请大神帮忙看一下，这是开发板给的配套例程，存在什么问题呢
#include "DSP2833x_Device.h" // DSP2833x Headerfile Include File
#include "DSP2833x_Examples.h" // DSP2833x Examples Include File
void InitI2C(void);
Uint16 ReadData(Uint16 *RamAddr, Uint16 RomAddress, Uint16 number);
Uint16 WriteData(Uint16 *Wdata, Uint16 RomAddress, Uint16 number);
Uint16 I2C_xrdy();
Uint16 I2C_rrdy();
Uint16 i;
Uint16 dat1[8]={0,0,0,0,0,0,0,0};
Uint16 dat[]={ 0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x88};
void main(void)
{
InitSysCtrl();
// InitGpio(); // Skipped for this example
InitXintf16Gpio();
InitI2CGpio();
InitI2C();
DINT;
InitPieCtrl();
IER = 0x0000;
IFR = 0x0000;
//LedReg = 0xFF;
WriteData(dat,0x60,8);
DELAY_US(10000);
ReadData(dat1,0x60,8);
for(; ;)
{
}
}
Uint16 WriteData(Uint16 *Wdata, Uint16 RomAddress, Uint16 number)
{
Uint16 i;
if (I2caRegs.I2CSTR.bit.BB == 1)
{
return I2C_BUS_BUSY_ERROR;
}
while(!I2C_xrdy());
I2caRegs.I2CSAR = 0x50;
I2caRegs.I2CCNT = number + 1;
I2caRegs.I2CDXR = RomAddress;
I2caRegs.I2CMDR.all = 0x6E20;
for (i=0; i<number; i++)
{
while(!I2C_xrdy());
I2caRegs.I2CDXR = *Wdata;
Wdata++;
if (I2caRegs.I2CSTR.bit.NACK == 1)
return I2C_BUS_BUSY_ERROR;
}
return I2C_SUCCESS;
}
Uint16 ReadData(Uint16 *RamAddr, Uint16 RomAddress, Uint16 number)
{
Uint16 i,Temp;
if (I2caRegs.I2CSTR.bit.BB == 1)
{
return I2C_BUS_BUSY_ERROR;
}
while(!I2C_xrdy());
I2caRegs.I2CSAR = 0x50;
I2caRegs.I2CCNT = 1;
I2caRegs.I2CDXR = RomAddress;
I2caRegs.I2CMDR.all = 0x6620;
if (I2caRegs.I2CSTR.bit.NACK == 1)
return I2C_BUS_BUSY_ERROR;
DELAY_US(50);
while(!I2C_xrdy());
I2caRegs.I2CSAR = 0x50;
I2caRegs.I2CCNT = number;
I2caRegs.I2CMDR.all = 0x6C20;
if (I2caRegs.I2CSTR.bit.NACK == 1)
return I2C_BUS_BUSY_ERROR;
for(i=0;i<number;i++)
{
while(!I2C_rrdy());
Temp = I2caRegs.I2CDRR;
if (I2caRegs.I2CSTR.bit.NACK == 1)
return I2C_BUS_BUSY_ERROR;
*RamAddr = Temp;
RamAddr++;
}
return I2C_SUCCESS;
}
Uint16 I2C_xrdy()
{
Uint16 t;
t = I2caRegs.I2CSTR.bit.XRDY;
return t;
}
Uint16 I2C_rrdy()
{
Uint16 t;
t = I2caRegs.I2CSTR.bit.RRDY;
return t;
}
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