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7 SAE J1939 STX API
STX function SAEJ1939GetSA()
The function SAEJ1939GetSA lets you determine your own SA (Source
Address).
Function SAEJ1939GetSA (
CANNo:Int,
ref mySA:Byte,
) :Int;
The SAEJ1939GetSA () function comprises the following parameters:
Parameter Description Value
CANNo CAN channel number 1 ... CANMAX
mySA SA currently set 0 ... 253
This function transfers the following return values to the higher-level program.
Return value
0 OK
-1 Error when checking parameters
This parameter specifies the number of the SAEJ1939 interface. CANNo = 1
is assigned to the first interface. The number of SAEJ1939 interfaces depends
on the device. For information on the maximum number of SAEJ1939
interfaces (CANMAX) refer to the chapters Technical Specifications and Quick
Reference in the corresponding manual.
This function returns the currently set SA.
Result := SAEJ1939SetSA(1, actual_SA);
Introduction
Function declaration
Function parameters
Return value
Parameter CANNo
How to use this function