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Hardware layout and configuration
UM1461
10/65
Doc ID 022138 Rev 1
Note:
The LED LD9 is lit when the STM3240G-EVAL evaluation board is powered by the 5V
correctly.
2.2 Boot
option
The STM3240G-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 (BOOT1) and SW2 (BOOT0). The
BOOT0 can be configured also via RS-232 connector CN16.
JP18
(cont.)
To select USB OTG FS (CN8) power supply, set JP18 as
shown:
To select USB OTG HS (CN9) power supply, set JP18 as
shown:
To select power supply jack (CN18) power supply to both
STM3240G-EVAL and daughterboard connected on CN1
and CN3, set JP18 as shown (daughterboard must not
have its own power supply connected)
JP19
To connect Vbat to the battery, set JP19 as shown:
To connect Vbat to 3.3V power, set JP19 as shown:
(Default setting)
Table 1.
Power related jumpers and solder bridges (continued)
Jumper
Description
HS
FS
DTB
PSU
STlk
HS
FS
DTB
PSU
STlk
HS
FS
DTB
PSU
STlk
3
2
1
3
2
1
Table 2.
Boot related jumpers
BOOT 0
BOOT 1
Boot source
0
Don’t care
STM3240G-EVAL boots from User Flash (Default setting)
1
1
STM3240G-EVAL boots from Embedded SRAM
1
0
STM3240G-EVAL boots from System Memory
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