Solved
STM 32 Power Delivery software expansion ; TCPM-TCPC architecture core library.
Hi,
I am working on the power delivery expansion pack with cpm tcp architecture by using STM32F072 and PTN5110 as tcpc. Right now i am configuring one of the ports for sink and connect to PD2 capable source device. I am able to get 5v default voltage. however for the later stages of power negotiation i have been stuck at where the Sink generates the last GoodCRC message. this has been always get stuck within the PE_State Machine which is not accessible. Is there a way to get an access to this core function to figure out why the negotiation get stuck? In attach you can see the log file of the traces i m getting. Please feel free to comment on the negotiation, how it should be, if there is something else wrong and how to fix it!
Thanks,
Faik
0 EVENT 381188 1 EVENT_ATTACHED
1 DEBUG 381188 1 VBUS:2393, CC:2
2 SRC 381288 1 SRC_CAPABILITIES DATA:2C91012E / 5V - 3A SOP PD2 H:0x1161
3 SNK 381289 1 GOODCRC SOP H:0x0081
4 SNK 381300 1 REQUEST DATA: 96580211 / ObjectPosition:1 / GiveBack:0 / CapabilityMismatch:0 / USBCommunicationCapable:0 / NoUSBSuspend:1 / UnchunkedExtendedMessagesSupported:0 SOP PD2 H:0x1042
5 SRC 381301 1 GOODCRC SOP H:0x0161
6 SRC 381305 1 ACCEPT SOP PD2 H:0x0363
7 SNK 381305 1 GOODCRC SOP H:0x0281
8 SRC 381334 1 PS_RDY SOP PD2 H:0x0566
9 SRC 381336 1 PS_RDY SOP PD2 H:0x0566
10 SRC 381337 1 PS_RDY SOP PD2 H:0x0566
11 SRC 381339 1 PS_RDY SOP PD2 H:0x0566
12 SRC 381341 1 SOFT_RESET SOP PD2 H:0x016D
13 SRC 381342 1 SOFT_RESET SOP PD2 H:0x016D
14 SRC 381344 1 SOFT_RESET SOP PD2 H:0x016D
15 SRC 381345 1 SOFT_RESET SOP PD2 H:0x016D
16 DEBUG 381370 1 VBUS:755: CC:2
17 EVENT 381370 1 EVENT_DETACHED
18 EVENT 382208 1 EVENT_ATTACHED
19 DEBUG 382208 1 VBUS:4953, CC:2
20 SRC 382308 1 SRC_CAPABILITIES DATA:2C91012E / 5V - 3A SOP PD2 H:0x1161 