WriteToPhysicalMemory
- Updated2023-02-21
- 2 minute(s) read
WriteToPhysicalMemory
int WriteToPhysicalMemory (unsigned int physicalAddress, const void *sourceBuffer, unsigned int numberOfBytes);
Purpose
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Note This function is obsolete and always returns an error code of 0, which indicates failure. |
Copies the contents of the specified buffer into a region of physical memory.
WriteToPhysicalMemory does not check whether the memory actually exists. If the memory does not exist, WriteToPhysicalMemory returns the success value but does not read any data.
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Note WriteToPhysicalMemory requires the LabWindows/CVI low-level support driver. LabWindows/CVI loads the driver at startup if it is on disk. You can check whether LabWindows/CVI loaded the driver at startup by calling CVILowLevelSupportDriverLoaded. The low-level support driver is not supported on 64-bit systems. Only applications running with administrator privileges on 32-bit systems can load the low-level support driver. |
Parameters
| Input | ||
| Name | Type | Description |
| physicalAddress | unsigned int | Physical address to write to. No restrictions exist on the address, which can be below or above 1 MB. |
| sourceBuffer | const void * | Buffer from which to copy the physical memory. |
| numberOfBytes | unsigned int | Number of bytes to copy to physical memory. |
Return Value
| Name | Type | Description | ||||||
| status | int | Indicates whether the function succeeded.
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Additional Information
Library: Utility Library
Include file: utility.h
LabWindows/CVI compatibility: LabWindows/CVI 3.0 and later