Purpose

Clears the contents of a specified memory block.

Format

Input

ECU ref in is the task reference which links to the selected ECU. This reference is originally returned from MC ECU Open.vi or MC ECU Select.vi, and then wired through subsequent VIs.
Address is a cluster which contains the following values.
Address specifies the address part of the source address.
Extension contains the extension part of the source address.
Block size determines the size of the block that has to be calculated.
Error in is a cluster which describes error conditions occurring before the VI executes. If an error has already occurred, the VI returns the value of the error in cluster to error out.
status is TRUE if an error occurred. This VI is not executed when status is TRUE.
code is the error code number identifying an error. A value of 0 means success. A negative value means error: VI did not execute the intended operation. A positive value means warning: VI executed intended operation, but an informational warning is returned. For a description of the code, wire the error cluster to a LabVIEW error-handling VI, such as the Simple Error Handler.
source identifies the VI where the error occurred.

Output

ECU ref out is the same as ECU ref in. Wire the task reference to subsequent VIs for this task.
Error out describes error conditions. If the Error in cluster indicated an error, the Error out cluster contains the same information. Otherwise, Error out describes the error status of this VI.
status is TRUE if an error occurred.
code is the error code number identifying an error. A value of 0 means success. A negative value means error: VI did not execute the intended operation. A positive value means warning: VI executed intended operation, but an informational warning is returned. For a description of the code, wire the error cluster to a LabVIEW error-handling VI, such as the Simple Error Handler.
source identifies the VI where the error occurred.

Description

MC Clear Memory.vi can be used to erase the FLASH EPROM prior to reprogramming. If you are using CCP, the CCP Memory Transfer address (MTA0) pointer is set to the memory location to be erased specified by the parameters Address and Extension. MC Clear Memory.vi implements the CCP CLEAR_MEMORY command defined by the CCP specification.

If you are using the XCP protocol, MC Clear Memory.vi implements the PROGRAM_CLEAR command.

For further details on how to clear parts of non-volatile memory in the ECU refer to the ASAM XCP Protocol Layer Specification.