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UM1855
Element
R39
SB3
R38
SB6
R36
SB2
SB27
R33
SB4
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Table 27. Touch-sensing-related configuration elements
Setting
Default setting. PB12 port is routed to CN11 connector for LCD glass
In
module daughterboard.
This setting is not good for robustness of touch sensing.
PB12 port is cut from CN11.
Out
This setting is good for robustness of touch sensing.
Default setting. PB12 is not routed to motor control.
Open
This setting is good for robustness of touch sensing.
PB12 is routed to motor control.
Closed
This setting is not good for robustness of touch sensing.
Default setting. PB13 port is routed to CN11 connector for LCD glass
In
module daughterboard.
This setting is not good for robustness of touch sensing.
PB13 port is cut from CN11.
Out
This setting is good for robustness of touch sensing.
Default setting. PB13 is not routed to sampling capacitor. Touch
Open
sensing cannot operate.
Closed
PB13 is routed to sampling capacitor. Touch sensing can operate.
Default setting. PC6 port is routed to CN14 connector for LCD glass
In
module daughterboard.
This setting is not good for robustness of touch sensing.
PC6 port is cut from CN14.
Out
This setting is good for robustness of touch sensing.
Default setting. PC6 is not routed to active shield under the touch-
Open
sensing button.
This setting is not good for robustness of touch sensing.
PC6 is routed to active shield under the touch-sensing button.
Closed
This setting is good for robustness of touch sensing.
Default setting. PC6 port of STM32L476ZGT6 is not routed to motor
Open
control. This setting is good for robustness of touch sensing.
PC6 is routed to motor control.
Closed
This setting is not good for robustness of touch sensing.
Default setting. PC7 port is routed to CN14 connector for LCD glass
In
module daughterboard.
This setting is not good for robustness of touch sensing.
PC7 port is cut from CN14.
Out
This setting is good for robustness of touch sensing.
Default setting. PC7 port of STM32L476ZGT6 is not routed to
Open
sampling capacitor of the active shield under the touch-sensing button.
This setting is not good for robustness of touch sensing.
PC7 is routed to sampling capacitor of the active shield under the
Closed
touch-sensing button.
This setting is good for robustness of touch sensing.
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Hardware layout and configuration
Configuration
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