Hi,I have a USB-C power source that supports PDOs of both Fixed type and Battery type. Is there a way to make sink request Battery type PDO?Regards,Winston
Hello,When I connect USB-C source power to our device, PD sniffer shows Source:DFP sends DR_Swap message to our device, which has a STUSB4500 PD controller. However, our device(Sink:UDP) always sends Reject command. My questions are:Does STUSB4500 su...
Hi,I have issues to get the source PDO capabilities by STUSB4500. My power source has 4 source PDOs as below:5V, 3A9V, 3A15, 3A20, 3ABut I most time got below:5V, 4.19A9V, 2.88A15, 3A20, 3AVerifying the PD message registers, I got: 0x30 1 2 3 ...
Hi,There are three type of source PDOs:Fixed SupplyVariable Supply (non-Battery)BatteryDocuments gave examples for the decision algorithm for Fixed Supply type source PDOs. But for Variable Supply (non-Battery) and Battery type of source PDOs, the vo...
Hello,Thanks for the reply. I have follow up questions after testing.We are using STUSB4500(Not the STUSB4500L version) with external lab supply power. When I set the lab power supply to 5V, for some of our boards, CC_STATUS reads out as 0x13 (which ...
Hi MiBA,I got the interrupt working following your suggestions. The alert mask(0x0C) is 0x11. Now I encounter another issue: I cannot catch the source capability PD traffic. It is so consistent that I think I have something setup wrong. I send out a ...
Hi,I set the ALERT_MASK mask to 0x91 (I set to 0x95 but then it reads out as 0x91, I think it is ok since bit 2 is reserved and always be 0). After reading the registers(from 0x0B to 0x0B+12) to clear ALERT, I can see the ALERT status register(0x0B) ...
Hi Peter,Thanks for the answer. I have read the STW-STUSB003 but it does not give a hint as to when the signal will be sent.That is what I want to know: can you give me some examples as to what transmission is signaled? Will the signal be sent once f...
