Purpose

Downloads raw data as byte array (no scaling) to a Characteristic for a selected ECU. Format

mcTypeStatus mcCharacteristicWriteByteArray(
mcTypeTaskRef ECURefNum,
char *CharacteristicName,
u8 *Values,
u32 NumberOfValues);

Input

ECURefNum

ECURefNum is the task reference which links to the selected ECU. This reference is originally returned from .

CharacteristicName

CharacteristicName is the name of the Characteristic defined in the A2L database file.

Values

Values contains a pointer to an unsigned 1D byte array which is sent to the ECU. The byte array corresponds to the memory area in the ECU representing this characteristic.

NumberOfValues

Specifies the number of values to write for the task. Output

Return Value

The return value indicates the status of the function call as a signed 32-bit integer. Zero means the function executed successfully. A negative value specifies an error, which means the function did not perform the expected behavior. A positive value specifies a warning, which means the function performed as expected, but a condition arose that may require attention.

Use the function of the ECU M&C API to obtain a descriptive string for the return value.

Description

mcCharacteristicWriteByteArray writes the raw value(s) as byte array of a named Characteristic to an ECU identified by the ECU reference handle ECURefNum.