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Part Number: TIDA-01243
I would use the USB-CTM-MINIDK-EVM (TIDA-01243) to connect az USB3.0 device (4K webcam) to laptop via USB-C.
Connecting the device (camera) to laptop, USB3.0 mode is active. Connecting the same camera via the EVM, only USB2.0 mode is active. I guess the EVM is not switched to 2laneDP + USB3.0 mode, but works in 4-lane DP mode, so no USB3.0. My question is: How to enable the 2laneDP+USB3.0 mode ?
I believe that specific TI-Design is not set to work in 2-lane DP + 2-lane USB3 mode. The TIDA-01243 is featuring custom software and we do not support any changes to the base FW image pre-programmed onto the boards.
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In reply to Eric Beljaars:
Thank you for your reply. Maybe, I was wrong, I have the USB-CTM-MINIDK-EVM (not the TIDA-01243).
1- Does it support different Alternate Modes? 4lane DP / 2+2 lane DP+USB3.0 / USB 3.0 only ?
2- It has a 4lane-2lane switch. What is its purpose ?
3- If no 2+2 mode supported (2lane DP with USB3.0), no-DP, USB3.0 only mode supported?
4- Can we influence the operating mode via I2C communication with the PD controller chip?
In reply to Andras Toth:
The dock should support both 2-lane and 4-lane DP.: UFP_D Pin assignment C and D. But we would have to check on the FW version on the docks being shipped from ti.com.
However the final configuration would be dependent upon the DFP_D(i.e. Laptop port) Configuration. For 2lane + USB3 mode, DFP_D would have to configure to select pin assignment D.
We would have to check if the FW being shipped is UFP_D pin assignment D capable. But if you could check whether the connection is configured for pin assignment D, that would be helpful. Do you have a way to snoop USB PD traffic on Type-C CCs?
In reply to Yoon Lee:
Thank you for the reply. At the moment we have no CC sniffer, it is still on the way. Would you please send me the latest firmware with the instruction how to flash it? Thanks.
Hi Andras, just to confirm it's a pin configuration issue, could you try to change the configuration setting per the instruction attached?
Having multi function bit enabled in the dock would increase the probability of the DFP_D port partner to configured the dock with pin assignment D instead of C.Minidock_Debug1.pdf
I managed to install the Config Tool as well as the Aardvark. Thank you for the document.
Setting of the Multifunction Preferred is OK (was not set), but no change in behavior. How to "save" this setting? After restarting the board, Multifunction Preferred is reset (cleared).
Do I need to re-flash the firmware with this new setting ?
Do I need to configure the GPIO mapping, too ? I guess so, because TPS needs to control the Demux ! Please recommend the setting for this board. At the moment no any GPIO mapping set.
Thank you. Andras
Thank you. I understand, I will test tomorrow morning (we have evening here). But without proper GPIO mapping the Demux chip (HD3SS460) would not be controlled by the TPS, so no Pin Assigment D would happen. GPIO mappings are all empty now according to the debug mode.
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