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panfeiling
Level 3
Level 3
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在TC3XX手册里面描述如下

PCTL provides a field PCS that, in combination with the P33_PCSR.SEL bitfield, enables software to change the
PAD control of FSP[0].

理论上我需要设置 P33_PCSR.SEL 与 PCTL.PCS 后,PIN脚的控制才会从PORT转向SMU,但是实际仅仅设置PCTL.PCS后,SMU就可以对PIN进行控制。

请问如果不设置P33_PCSR.SEL 会有什么影响?

1 解答
Circlebeer
Level 1
Level 1
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我理解如果不修改这个寄存器,SMU和PORT模块均能控制此PIN

在原帖中查看解决方案

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2 回复数
Circlebeer
Level 1
Level 1
First solution authored First reply posted First like given

我理解如果不修改这个寄存器,SMU和PORT模块均能控制此PIN

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panfeiling
Level 3
Level 3
First reply posted First like received First like given

谢谢,我会Debug尝试一下。

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