AN2295 Freescale Semiconductor / Motorola, AN2295 Datasheet - Page 30
AN2295
Manufacturer Part Number
AN2295
Description
Developers Serial Bootloader for M68HC08 and HCS08 MCUs
Manufacturer
Freescale Semiconductor / Motorola
Datasheet
1.AN2295.pdf
(56 pages)
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MCU Slave Software
30
WAIT FOR HI-LO EDGE
CALIBRATE SOFT-SCI
WAIT FOR COMMAND
WAIT FOR ANSWER
TIMEOUT EXPIRED
SEND IDENT DATA
MEASURE BREAK
SEND ACK AND
SOURCE TEST
MCU CONFIG
SRSR RESET
SEND ACK
IDENT?
RESET
...
...
2
?
YES
NO
POR CAUSED RESET
NO
Developer’s Serial Bootloader for M68HC08 and HCS08 MCUs, Rev. 6
NOT POR
YES
RECEIVE ADDRESS
ROUTINE IN ROM
CALL ERASE
2
1
Figure 19. MC68HC908JK/JL Bootloader
ERASE?
1
YES
NO
RECEIVE ADDRESS
RECEIVE LENGTH
ROUTINE IN ROM
RECEIVE DATA
CALL WRITE
WRITE?
1
USER CODE
YES
START
NO
RECEIVE ADDRESS
RECEIVE LENGTH
SEND DATA
READ?
2
YES
NO
EXECUTE ILLEGAL
Freescale Semiconductor
OPERATION
QUIT?
2
YES
NO
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