USB EZ-PD™ Type-C Forum Discussions
CY4533 BRC Evaluation kit
Doc #: 630-60538-01
Sheet: 5
Section: B4
Pins: MH1, MH2, MH3, MH4
are these pins actually the case pins?
Want to verify before I continue.
Show Lessit possible require ccg3pa with 128 kb flash ?
I want to use BCR(CYPD3177) to get 9V power from power bank, and I don't have the SOC or MCU to communicate with BCR,
can I get the 9V voltage only by adjusting the external resistance?
The BCR has a HPI Specification, If I don't control the BCR by HPI, I think BCR has the default configurations,
but I can't find the default configurations in HPI Specification,how should I know the default configurations of BCR?
Show LessI'm using the SDK CYPD3171-24LQXQ_pb, and when Power Bank work under sink mode, does it support PD3.0 or not?
Why in EZ-PD Configuration Utility Sink Settings only BC1.2 and Apple charger are supported?How could I add other protocols like PD or QC?
And I used my board with the SDK CYPD3171-24LQXQ_pb, it works in sink mode, and the side of power source supports PD3.0 and QC3.0, why my board only get 9V VBUS from the power source and I changed the Sink PDO as 12V but will not get 12V, how can I get the 12V from the power source?
Show Less
Hello,
I am using the CY4533 EZ-PD BCR Evaluation Kit for a work project exploring the use of USB C power in place of more common power supplies. While using the CY4533 (set to 5V), I measured the power output and noticed a sawtooth wave with a frequency of around 800 Hz. I am trying to identify the cause of that specific wave, which is too slow to be caused by the switching frequency of the USB C power supply that I am using to power the CY4533 kit. Is this 800 Hz sawtooth wave a product of the CY4533 EZ-PD BCR Evaluation Kit or is it coming from somewhere else? If it is not coming from the CY4533, where could it be coming from? Thanks!
Show LessCCG3PA Power Adapter with Direct Feedback Control example from PSoC creator build falied when use below function
how set high/low VBUS_C_CTRL pin which API shuld use ?
pd_internal_cfet_off(0, false);
pd_internal_cfet_on(0, false);
Show Lessi am looking for map register and explanation of ccg3pa ?
Hello,
This is related to another question that was answered on the forums. I've posted this question there as well, but I wasn't sure if that post would get traffic, since it's been answered.
I have questions related to the FAULT pin behavior on the BCR when a legacy non-PD type-C supply is attached. The system we are designing requires 20W+, so I am hoping to use the FAULT pin to detect when a user tries to use an under-powered USB charger, including non-PD type-C chargers. I have swapped out resistors on the voltage dividers to read as follows:
VBUS_MAX: 5k/NC (pull-up/pull-down), unchanged
VBUS_MIN: 5k/1k (9V min)
ISNK_COARSE: 5k/5k (3A)
ISNK_FINE: NC/5k (0mA)
I've also set the rotary switch to position 5 (NC).
Test points were read on a multimeter (text is pretty small, so I hope I'm hitting the right test points):
TP7: 3.389V (VBUS_MAX)
TP8: 0.557V (VBUS_MIN)
TP6: 1.696V (ISNK_COARSE)
TP9: 0V (ISNK_FINE)
However, when I try to use a legacy non-PD type-C connector, the FAULT LED does not light up, the voltage on TP3 is high (3.4V), and the FAULT pin remains at 0V. I expected the FAULT pin to alert since my VBUS_MIN is set to 9V, but it does not. I get 4.8V on DC_OUT and 0V on SAFE_5V_OUT.
What am I missing?
I have been able to probe the I2C addresses outline in the HPI specification. For example, with the legacy non-PD type-C adapter, the Current PDO and Current RDO (0x1010 and 0x1014) both read all zeros.
When I use a PD charger, i get 15V on DC_OUT, 0V on SAFE_5V_OUT. TP3 reads 13.79V. The current RDO reads 0x0004B12C, and the current PDO reads 0x4004B12C.
Again, what am I missing? My VBUS_MIN is set for 9V minimum, but when I use a 5V-only charger, the BCR does not throw the FAULT.
Any advice you can provide would be greatly appreciated.
Regards,
Matt