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Bootloader

FCANھˢtҪ_lᘌĿECUBootloaderܛҪCANFlash
ͨŅfhȽM
 
   
AƼ > > aƷg > > Bootloader >
Bootloader
——
óܛ܇ECUҪĽMɲECUĹܺͿɿԺ̶ܴȡQ䑪ܛS܇ӼglչECU늿ϵyas̶ȲLECUܛlR׃Ć}аlһʹJTAGBDMNexusӲӿdSgаl뼰aƷaۺAӲӿdķʽѽܝMOEM͹̵

ǰCANѽVؑ܇WjԻCANھܛˢҲVʹ_lAͨ^CANھˢECUaԷܛ_lˆTOӋ{ԇyԇܛa߹Чʺ_lMaAͨ^CANھˢԌFdܛ汾ĸҲJTAGBDMӲӿڵijɱsۺA\xOͨ^CANֱECUеܛܛȱĮaƷٻ¼ɵľ޴pʧҲԞECUṩһƽ_


—— FlashBootloaderܛܘ
CANӣCAN Driver
CANģKFCANĵհlCANӲIJ
CANҪc

•  ʼCAN
•  CANĵĽպͰl
•  CAN¼

FlashӣFlash Driver
ڲFlashIJxȡ
FlashҪc

•  FlashӲʼ
•  Flashȅ^
•  FlashKĔ
•  FlashKĔxȡ
•  Уz

ݔӣTransport Protocol Layer
ݔӿɌF²(ͬʹòͬĂݔӅfh)
•  AԶxĂݔfhҎ
•  ISO 15765-2ĂݔfhҎ
•  CCPĂݔfhҎ

ݔҪṩĽMͲܷ܉򌍬Fĵķֶ΂ݔ(segmented transmission)LĵķְlԼְĵĽMb
ݔc

•  ְͽMbԔ·ӵĔ
•  LĵƺͶr{
•  ݔ^еe`zyͳr̎

\ӣDiagnostics Layer
ݔӲûISO 15765fhҎr\x헼ɵBootloadera
\ӌFISO 15765-3/ISO 14229-1жxBootloaderˢ\ԒГQȫBГQRxˢECUλ
\Ҫc

•  FISO 14229ˢP\
•  {Flash Driver

TWatch Dog
ֹBootloaderFrTģK܉ڳ^һrgaECUλܛĿɿ
Trc

•  OBootloaderrCECUλ
•  r
•  rбC

Ҫ̎ܛܺͰȫLP\ՃFdĺϷԺ
㷨ģKc
•  Ñͬx
•  dߵĺϷУzSeed & Key\
•  dУzCRCУz

—— FlashBootloaderQ
FCANھˢtҪ_lᘌĿECUBootloaderܛҪCANFlashͨŅfhȽMBootloaderܛһҪ
•  Bootloadercܛ횷ڲͬROMg
•  ʹ÷ʧԴ惦ԪŘ־λϢ
•  Ҫֲ֧ͬͨŅfh
•  BootloadercܛͬrռӲYԴ
•  ECU늵r³ˢϵĹޏ͹
•  dC
•  ȫLģKͼ㷨
•  T

AƼFеĮaƷͽQY϶Bootloader_lԸ͑ĿӲƽ_FlashBootloaderܛ(BootloaderFlash Driver)ͬrCԴaʽo͑YχȻCANECUھˢAƼṩNͬFlashBootloaderQ͑ЧȫMECUھˢ͑ɸxmϵĽQ
FlashˢmԲUSBCANCANCardCANcaseӲ

FlashˢܛԲCANape/MeCaλCܛMeCaAƼаlһͨõECUy˶ܛͬrFlashˢһõܛaƷFlashˢ溆׿ɿˆDʾ



 
1
AƼBootloader_lISO 15765PҎЂݔӅfhFlashBootloaderھˢFlashˢBootloaderǶʽԴaFlashӺBootloaderóԴa

2
ȫMISO 15765ҎFlashBootloaderھˢBootloaderģKISO 15765-2ISO 15765-3˜_lģKܛܘˆDʾ

3
CCPfhFlashBootloaderھˢBootloaderģKCCPfh˜_l

—— aɷ
ɷҪԴaļcӖg֧

ac
͑҂͑¹

•  FlashBootloaderܛcÑӲƽ_ļ
•  ھˢܛcÑܛļ
•  FlashcÑܛļ
•  ԴaĽ
•  ύ^ęnʹf

Ӗ

ڼɷյ^ʹÑ܉õմa͹ߵʹ҂ṩcFlashBootloaderP֪RӖBootloaderԭBootloaderɷʹ÷


ṩܛԴaļgַ֧֧ʽ]ԒͨͬFյ


 
 
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