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USB superspeed peripherals Forum Discussions

Flance_Fang
Level 4
Level 4
50 questions asked 25 sign-ins First comment on KBA

CYUSB3014的USB 3.0和2.0 的这几组信号是否有在芯片内部上拉,因为根据规范,3014作为device应该有1个上拉电平,但是在参考设计上没有做上拉?

Catch(11-21-20-34-48).jpg

2、如果要测试USB3.0信号眼图,是否有对应的设备来使得USB接口发指定pattern的信号?

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YiZ_31
Moderator
Moderator
Moderator
1000 replies posted 750 replies posted 500 replies posted

Hi Flance,

1. 我们是内部有相应电阻的,所以外部无需上拉。

2. 测试眼图有专业的测试设备,FX3这边无需特殊固件。


Regards,
Eddie

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YiZ_31
Moderator
Moderator
Moderator
1000 replies posted 750 replies posted 500 replies posted

Hi Flance,

1. 我们是内部有相应电阻的,所以外部无需上拉。

2. 测试眼图有专业的测试设备,FX3这边无需特殊固件。


Regards,
Eddie

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