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[UDS unified diagnostic service] IV. typical diagnostic service (4) - online programming function unit (0x34-0x38)
2022-04-23 17:57:00 【Tomorrow is like noon】
Four 、 Diagnose typical services (4)— Online programming function unit
I summarized a table myself , Free download , Corresponding learning , better !
link :https://download.csdn.net/download/sinat_40003796/85031818
Diagnostic service of each functional unit :
- Diagnosis and communication management function unit
- Data transmission function unit
- Read fault information function unit ( Storage data transmission function unit )
- Online programming function unit ( Upload and download function unit )
- function / Component test function unit ( Routine function unit )
- Input / output control unit (0x2F)
This article mainly explains “ Online programming function unit ( Upload and download function unit )”, For the rest, see other articles .
————————————————————
“ Online programming function unit ( Upload and download function unit )” Services included :
Upload and download function :
- RequestDownload (0x34) service
- RequestUpload (0x35) service
- TransferData (0x36) service
- RequestTransferExit (0x37) service
- RequestFileTransfer (0x38) service
Download function to achieve (34—>36—>37) Example :
(1)RequestDownload (0x34) service
- Initialize data transfer
- ECU After receiving the request , After completing all pre download preparations , Send a positive response .
Request message :
Positive response :
(2)TransferData (0x36) service 【 To be added 】
(3)RequestTransferExit (0x37) service 【 To be added 】
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