Table 15. Touch-Sensing-Related Configuration Elements - ST STM32L4R9I-EVAL User Manual

UM2248
touch sensing performance, by isolating copper tracks to avoid disturbances due to their
antenna effect.
.
Element
R44
SB21
R46
SB19
SB20
R26
SB14
SB15
SB16

Table 15. Touch-sensing-related configuration elements

Setting
PC6 port is routed to CN6 connector for daughterboard.
In
This setting is not good for robustness of touch sensing.
Default setting.
Out
PC6 port is cut from CN6.
Default setting.
Open
PC6 is not routed to motor control.
PC6 is routed to motor control.
Closed
This setting is not good for robustness of touch sensing.
PC7 port is routed to CN6 connector for daughterboard.
In
This setting is not good for robustness of touch sensing.
Default setting.
Out
PC7 port is cut from CN6.
Default setting.
Open
PC7 is not routed to motor control.
PC7 is routed to motor control.
Closed
This setting is not good for robustness of touch sensing.
PC7 is not routed to sampling capacitor. Touch sensing cannot
Open
operate.
Default setting.
Closed
PC7 is routed to sampling capacitor. Touch sensing available.
PB6 port is routed to CN5 connector for daughterboard.
In
This setting is not good for robustness of touch sensing.
Default setting.
Out
PB6 port is cut from CN5.
Default setting.
Open
PB6 is not routed to motor control.
PB6 is routed to motor control.
Closed
This setting is not good for robustness of touch sensing.
PB6 is not routed to active shield under the touch sensing button.
Open
This setting is not good for robustness of touch sensing.
Default setting.
Closed
PB6 is routed to active shield under the touch sensing button. This
setting is not good for robustness of touch sensing.
Default setting.
Open
PB6 is not routed to CN16 DSI display connector.
PB6 is routed to CN16 DSI display connector.
Closed
This setting is not good for robustness of touch sensing.
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