关于官网stm32f469i-eval_sch  ， 原理图编号：MB1165 原理图里面的 DSI-VDD12 这个电源，


没有找到电源提供源，？还是这个引脚 DSI-VDD12 电源的输出脚 ？？

建议看datasheet

应该是输入电源的吧~

看数据手册, 一般这种脚不管输入输出, 同3.3V电源接都不会有问题的

个人感觉不应把

找找参考手册看看

469的数据手册上有写的：
The DSI (Display Serial Interface) sub-system uses several power supply pins which are
independent from the other supply pins:
• VDDDSI is an independent DSI power supply dedicated for DSI Regulator and MIPI
D-PHY. This supply must be connected to global VDD.
• VCAPDSI pin is the output of DSI Regulator (1.2V) which must be connected externally
to VDD12DSI.
• VDD12DSI pin is used to supply the MIPI D-PHY, and to supply clock and data lanes
pins. An external capacitor of 2.2 uF must be connected on VDD12DSI pin.
• VSSDSI pin is an isolated supply ground used for DSI sub-system.
If DSI functionality is not used at all, then:
• VDDDSI pin must be connected to global VDD.
• VCAPDSI pin must be connected externally to VDD12DSI but the external capacitor is
no more needed.
• VSSDSI pin must be grounded.

量一下，会不会接到VDD12

能上传原理图一起帮你找，
不会平白无故的放个NET的