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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) |
Solved! Go to Solution.
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USB EZ-PD Type-C
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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.
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Hi,
>> Please provide the board schematics.
>> Kindly confirm if you used the firmware with the default configuration.
Regards,
Mallika
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Hi Mallika
Thanks for your reply.
Use USER FW + CY4532 EVM is ok no fail.
The picture below is the customer's PCBA
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Hi,
Could you please provide your schematics for review.
Regards,
Mallika
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It is CYPD3171 schematics
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Hi,
From the schematics, the connections of VBUS_IN_DISCHARGE and VBUS_C_MON_DISCHARGE are unclear. Could you please elaborate on it?
Regards,
Mallika
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Dear Sir
FYI
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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.
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Dear Sir
Product application is sink only ,
So CCG3PA_GND and Type-C GND should be the same, right?
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Hi,
I meant the Type-C receptacle GND line should not be directly connected to CCG3PA GND pin. Please look into the CY4532 schematics for the Type-C receptacle GND connection.
Also, look at the KBA for Rsense connection: https://community.cypress.com/t5/Knowledge-Base-Articles/Rsense-Design-Considerations-On-CCG3PA-Appl...
For sink applications, VBUS_IN_DISCHARGE should be connected to VBUS of Type_C interface and VBUS_C_MON_DISCHARGE to VBUS source.