DocID028481 Rev 1
9/24
UM1964
Hardware description and configuration
24
Note:
Only one among SB10 and SB26 can be short.
Only one among SB11 and SB32 can be short.
Only one among SB12, SB13 and SB34 can be short.
Only one among SB7, SB8, SB9 and SB23 can be short.
Only one among SB40 and SB41 can be short.
Table 3. Solder bridge table
Solder
bridge
Function
Group
Sub group
Default
condition
SB1
Connect L6470 #0 OSCIN to the crystal
External
crystal
L6470 #0
Open
SB2
Connect L6470 #0 OSCOUT to the crystal
Open
SB3
Connect L6470 #1 OSCIN to the crystal
L6470 #1
Open
SB4
Connect L6470 #1 OSCOUT to the crystal
Open
SB5
Connect L6470 #0 OSCOUT with L6470 #1 OSCIN
Clock
Synchronism
Open
SB6
Connect ST1S14 PGOOD with CN7-34 and CN8-4
ST1S14
Power good
Open
SB10
Connect L6470 #1 SDI with CN10-26
SPI
SDI
Open
SB26
Connect L6470 #1 SDI with CN10-15 and CN5-4
Short
SB11
Connect L6470 #0 SDO with CN10-28
SDO
Open
SB32
Connect L6470 #0 SDO with CN10-13 and CN5-5
Short
SB12
Connect any L6470 SCK with CN10-11 and CN5-6
SCK
Open
SB13
Connect any L6470 SCK with CN10-30
Open
SB34
Connect any L6470 SCK with CN10-31 and CN9-4
Short
SB7
Connect any L6470 nCS with CN10-33 and CN9-3
nCS
Open
SB8
Connect any L6470 nCS with CN10-17 and CN5-3
Open
SB9
Connect any L6470 nCS with CN10-27 and CN9-6
Open
SB23
Connect any L6470 nCS with CN7-32 and CN8-3
Short
SB40
Connect any L6470 VDD to +3V3 of control board
VDD
Nucleo
Short
SB41
Connect any L6470 VDD to +5V of control board
Arduino
Open