i.MX Processors中的主题 about UTMI_RXERROR_FAIL_COUNT bit

about UTMI_RXERROR_FAIL_COUNT bit

takayuki_ishii — Tue, 11 Sep 2018 08:18:17 GMT

Hello community,

Our customer has an USB connection error.

In this time UTMI_RXERROR_FAIL_COUNT bit in USBPHYx_DEBUG0_STATUS register will be set.

To analyse this error, we hope some information about this counter bit.

Which error doe's it trigger the counter UTMI_RXERROR_FAIL_COUNT?

In Figure 66-1. USB 2.0 PHY Block Diagram, which module doe's generate UTMI_RXERROR status?

In customer products, i.MX6Q use as USB-peripheral.

And connect to Host CPU in their system.

Best regards,

Ishii.

gusarambula — Thu, 20 Sep 2018 20:39:28 GMT

Hello Takayuki Ishii,

The error is generated by the UTMI PHY module, marked as a UTMI microcell on the figure, with a dotted line.

Possible sources of receive errors are:

I hope this helps!

Regards,

takayuki_ishii — Fri, 21 Sep 2018 00:29:45 GMT

Hello Gusarambula,

Thank you for your response.

I will answer this information to my customer.

Best regards,

Ishii.