UM0509
STPM01 kit components
9/21
2.12 Boot
configuration
Table 5.
Boot mode
BOOT EN
SW8
BOOT1
SW9
BOOT0
SW10
Mode
BOOT memory
mapping
Note
0 (1-2))
Any
Any
User
Flash mapped
at 0h
System executes code from Flash
1 (2-3)
0 (2-3)
0 (2-3)
1 (2-3)
0 (2-3)
1 (1-2)
System
memory
System memory
mapped at 0h
– System executes a factory
installed boot loader from
system memory (reserved
mode)
– Clock frozen
1 (2-3)
1 (1-2)
0 (2-3)
RAM
RAM mapped at 0h
– System executes code from
internal RAM
– For lab development
1 (2-3)
1 (1-2)
1 (1-2)
EXTMEM
EXTMEM mapped at
0h
– System executes code from
external memory
– Not allowed
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