Ellisys USB Compliance test fail (CCG3PA)

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Anderson_Lin
Level 2
Level 2
Distributor - Zenitron(GC)
10 replies posted 10 sign-ins 5 replies posted

Hi Everyone

How to solve the following problems.

TD.PD.PHY.E6 Receiver Swing Tolerance - Testing Upstream Port (trace)

FAILED

Setting Tx Amplitude to 1.2 V

UUT must respond to all 1000 BIST Data packets (996 answered)

FAILED

Setting Tx Amplitude to 1.05 V

UUT must respond to all 1000 BIST Data packets (996 answered)

 

 

TD.PD.PHY.E7 Receiver Bit Rate Tolerance - Testing Upstream Port (trace)

FAILED

Setting Tx Bit Rate to 330 kbit/s

UUT must respond to all 1000 BIST Data packets (996 answered)

FAILED

Setting Tx Bit Rate to 270 kbit/s

UUT must respond to all 1000 BIST Data packets (996 answered)

 

 

TD.PD.PHY.E8 Receiver Bit Rate Deviation Tolerance - Testing Upstream Port (trace)

FAILED

Deviating Tx Bit Rate to -0.25%

UUT must respond to all 1000 BIST Data packets (996 answered)

FAILED

Deviating Tx Bit Rate to +0.25%

UUT must respond to all 1000 BIST Data packets (996 answered)

TD.PD.PHY.E1 BIST Test Data - Testing Upstream Port (trace)

FAILED

Sending 1000 BIST Data

UUT must respond to all BIST Data packets (996 answered)

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1 Solution
MallikaK_22
Moderator
Moderator
Moderator
50 likes received 750 replies posted 250 solutions authored

Hi,

I suspect the issue to be related to power supply domain. The schematic provided is incomplete and I cannot clearly understand the wiring of VBUS_IN_DISCHARGE and VBUS_C_MON_DISCHARGE. Please refer to Q1 HARDWARE in the KBA: https://community.cypress.com/t5/Knowledge-Base-Articles/CCG3PA-Hardware-and-Software-FAQs-KBA231523... 

Also, please ensure that the CCG3PA_GND is different from the Type-C GND. They should be kept separated.

View solution in original post

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9 Replies