在信号完整性分析中

一个菜鸟

我在做信号完整性分析中，总是存在这个问题。显示

[Warning]        PGND        Track endpoint (11581mil, 6224mil) on TopLayer is not correctly connected.
[Warning]        PGND        Track endpoint (11075mil, 6323mil) on TopLayer is not correctly connected.
[Warning]        PGND        Track endpoint (11493mil, 6234mil) on TopLayer is not correctly connected.
[Warning]        PGND        Track endpoint (11524mil, 6182mil) on TopLayer is not correctly connected.
[Warning]        PGND        Not all pins could be reached on the net.  Check connections.


但是我检查感觉是已经连接上的没有问题，求解哪里出了问题。

正点原子

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