National Instruments 320682C WriteToPhysicalMemory

Chapter 8 Utility Library

Example

int module_id;

int status;

char *pathname'

pathname = "PROG.OBJ";

module_id = LoadExternalModule (pathname);

if (module_id <0)

FmtOut ("Unable to load %s\n", pathname);

else {RunExternalModule (module_id, "");

UnloadExternalModule (module_id);

}

WriteToPhysicalMemory

int status = WriteToPhysicalMemory (unsigned int physicalAddress,

void *sourceBuffer,

unsigned int numberOfBytes);

Note: This function is available only on the Windows versions of LabWindows/CVI.

Purpose

Copies the contents of destinationBuffer into a region of physical memory. The function does

not check whether the memory actually exists. If the memory does not exist, the success value is

returned but no data is read.

Note: For you to be able to use this function under Windows 95 or NT, the LabWindows/CVI

low-level support driver must be loaded.

Parameters

Input physicalAddress unsigned integer The physical address to be written

to. There are no restrictions on

the address; it can be below or

above 1 MB.

sourceBuffer void pointer The buffer from which the

physical memory will be copied.

numberOfBytes unsigned integer The number of bytes to copy to

physical memory.