Interpreters DocumentAC1
AC1 is set to |
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AC1 is set to $00 in this example based on the value in AC3. AC2 Set to $00. AC3 The upper nibble of AC3 tells the Interpreter where to get the length. In this case it‟s from the header of the Utility file ($1X). The lower nibble of AC3 determines how many bytes represent the length. In this example, the address length is specified by the Utility file header in the „Type of Addressing‟ field ($X0). Goto Fields G0-G1 (Return Code/Jump To Step Number) If a positive response $74 is received continue to the next step. G2-G3 (Return Code/Jump To Step Number) If response $FD is returned, then a timeout has occurred. Go to “Retry3” step. G4-G5 (Return Code/Jump To Step Number) Wildcard $FF. If any other response is ret urned, terminate the sequence immediately by jumping to “Error” step. G6-G7, G8-G9 – Not used CameraLoops.com 1993-2011 General Motors Company, GM Customer Care & Aftersales. All Rights Reserved. Page 219 Step $09 – Download the Operating Software The Operating software is downloaded to the ECU and programmed into memory. This Interpreter command outputs a series of Diagnostic service TransferData $36 messages to download the data. Step Op- Code Action Fields Goto Fields AC0 AC1 AC2 AC3 G0-G1 G2-G3 G4-G5 G6-G7 G8-G9 $09 $B0 $01 $00 $01 $10 $76 $0A $FD Retry3 $FF Error 00 00 00 00 OpCode - $BO Block Transfer to RAM This command downloads the specified Operating software to the ECU. The downloading of data to the ECU is made up of many Diagnostic service TransferData $36 messages. The number of messages is dependent on the length of the data to download. Download 6,14 Mb. Do'stlaringiz bilan baham: |