Hardware layout and configuration
UM1521
12/56
Doc ID 022868 Rev 1
2.5 Boot
option
The STM32L152D-EVAL evaluation board is able to boot from:
●
Embedded user Flash
●
System memory with boot loader for ISP
●
Embedded SRAM for debugging
The boot option is configured by setting switch SW1 (BOOT0) and SW2 (BOOT1). The
BOOT0 can be configured also via the RS-232 connector CN1.
Table 6.
Boot related switch
Switch
Boot from
Switch
configuration
SW1
and
SW2
STM32L152D-EVAL boots from user Flash when SW1 is set as
shown to the right. SW2 is don't care in this configuration.
(
Default setting
)
0 <----> 1
STM32L152D-EVAL boots from embedded SRAM when SW1 and
SW2 are set as shown to the right.
0 <----> 1
STM32L152D-EVAL boots from system memory when SW1 and
SW2 are set as shown to the right.
0 <----> 1
Table 7.
Boot0 related jumpers
Jumper
Description
JP11
The Bootloader_BOOT0 is managed by pin 6 of connector CN1 (RS-232 DSR signal)
when JP11 is closed. This configuration is used for boot loader application only.
Default setting
: Not fitted
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