Problems with Passing Pointers as Parameters

Okay, I'm trying to pass a pointer to a char buffer to a function. It works fine in the Keil simulator/debugger, but not on the target hardware.

// Variable Declaration
#define MAX_RX_SIZE 100
static char xdata cmdBuffer[MAX_RX_SIZE];

// Calling function
void CallingFunc(void) {
// cmdBuffer is read in from serial
// port and contains "EF"
printf("\r\nP2_CMDFOUND\r\n");
printf(cmdBuffer);

if (!process_EraseFlash(cmdBuffer)) {
printf("\r\nP2_INVALARG\r\n");
printf(cmdBuffer);
printf("\n**invalid arguments");
}
else {
printf("\r\nFcn Success\r\n");
printf(cmdBuffer);
}
}

// Called Function
BYTE process_EraseFlash(char *cmdBuffer) reentrant
{
printf("\r\nP2_CMDEF\r\n");
printf(cmdBuffer);
if (strcmp(cmdBuffer, "EF"))
return FALSE;

if (flash_ChipErase())
printf("\r\nOK");
else
printf("\r\n**Error>\r\n");
return TRUE;
}

Okay, here's the output from the simulator:
P2_CMDFOUND
EF
P2_CMDEF
EF
OK
Fcn Success
EF

And here's the output from the target hardware:
P2_CMDFOUND
EF
P2_CMDEF

P2_INVALARG
EF
**invalid arguments

Looks like the pointer is not being passed to the process function properly, as the process function thinks the buffer is empty.

Any ideas? I'm stuck here.

Thanks,
Chris Beattie