General Specification Electrical Function gmw3110 General Motors Local Area Network Enhanced Diagnostic Test Mode Specification

GM WORLDWIDE ENGINEERING STANDARDS 
GMW3110 
© Copyright 2010 General Motors All Rights Reserved 
February 2010 
Page 226 of 336 
ENDFOR 
ENDFOR 
IF (PDS_Number_Active = $00) 
PDS_Xmit_Index 

$00 
ENDIF 
ELSE 
Call ClearAndDisablePDS() 
ENDIF 
Send Positive Response ($UUDTCANId $00) 
WHEN ($Level = LEV_SOR ) /* $01 Send One Shot Responses*/ 
IF (processing the first response will take more than P2
C
ms) THEN 
Send Negative Response ($7F $AA $78) /*for request received-response pending */ 
ENDIF
FOR (Req_Index 

$00 TO (No_of_DPIDs - $01) BY $01) 
Resp_01_DPIDs[Req_Index] 

request_DPIDs[Req_Index] 
ENDFOR 
Resp_01_Num_To_Send 

No_of_DPIDs 
Num_Loops_For_01 

Max_01_Wait_Count /* ensure one shot is sent next time Process_AA_Msgs() 
function is called */ 
WHEN ($Level > LEV_SOR ) /* $02, $03, or $04 Periodic Rates */ 
IF (processing the first response will take more than P2
C
ms) THEN 
Send Negative Response ($7F $AA $78) /*for request received-response pending */ 
ENDIF
TesterPresent_Timer_State 

ACTIVE 
IF ($Level = LEV_SAFR) THEN 
Req_Sched_Rate_Count 

Fast_Rate_Count 
ELSE IF ($Level = LEV_SAMR) THEN 
Req_Sched_Rate_Count 

Medium_Rate_Count 
ELSE 
Req_Sched_Rate_Count 

Slow_Rate_Count 
ENDIF 
/************************************************************** 
* Check for each DPID in request to see if it is already scheduled
* (present in PDS). If already scheduled, clear the transmit counter 
* so the DPID will be sent and then update the data rate for that DPID. 
* If the DPID is not in the PDS, then put it into the first vacant
* location in the PDS, set its rate, and initialize its transmit
* counter to $00 so it will be sent as soon as possible. 
**************************************************************/ 
vacant_position 

$00 
Num_Loops_Since_Periodic 

Min_Loops_Since_Periodic 
FOR (Req_Index 

$00 TO (No_of_DPIDs - $01) BY $01) 
PDS_Index 

$00 /*Start with first row in PDS each loop*/ 
DPID_already_scheduled 

NO 
vacant_position_found 

NO 
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