TPS65987D: TPS65987D: TUSB546 TPS65982

Hello,

HDMI over Type-C is not supported by any of our PD controllers. So if HDMI over Type-C is a firm requirement, then unfortunately we cannot support this. My recommendation would be to implement DisplayPort over USB-C. This would be supported by our PD controllers and is more common in the industry than HDMI over Type-C. All of the big NB manufactures implement DP over Type-C for their notebooks/docks even if the dock has an HDMI port on the backside. 

If you do decide to switch to DP over Type-C, then I would recommend using the TPS65987D and not the TPS65982. The TPS65987D is a newer generation device and the one we recommend for all new projects that want to implement DP alternate mode

Thanks for your response Adam Mc Gaffin,

Regards,

deepika.s

Thanks for your reply Adam Mc Gaffin,

As you mensioned , if firmware is loaded by using the GUI tool on to the device, Is any linux driver needed or the firmware alone is enough to do the job.

Does TUSB546 ( mux) require any driver or it is just a switch.

 Regards,

deepika.s

Thanks for your reply Adam Mc Gaffin,

As per my understanding,
The external EEPROM flashed with the firmware/binary is sufficient and no other linux driver is needed for the functioning of pd controller(TPS65987)

Please let me know if my understanding is correct.

1) If my understanding is correct, we don't want any customisation of the firmware and we are planning to interface the pd controller with snapdragon processor. Will the firmware be provided from TI or a GUI tool should be used to generate the firmware?

2) If GUI tool has to be used to generate the firmware, could you please point to the document containing procedure to the create the firmware/binary fromm the GUI tool.

Hi Adam,

Adding to previous queries by Deepika....

3) Can you tell us in TUSB546EVM which device is the EEPROM you mentioned in your previous reply? Is it W25Q80 (U7)?

Thanks for your response Adam Mc Gaffin,

Using the tool we can create the binary/firmware for flashing to the flash memory connected to the PD controller.

1) Is there any tool/GUI/procedure for flashing the firmware/binary to the flash memory? Could you please point to the document for loading the firmware to the flash memory?

2) Also I would like to know that only loading the binary/firmware is sufficient and no linux driver is needed for functioning of PD controller.

Regards,

deepika.s

Adam,

Adding to Deepika's queries...

3. We referred to the videos and documents regarding the TPS6598x configuration tool to understand how to generate the program file and how to load the program file using the GUI.

But we believe  that the videos and document explained mainly for TPS65988 Evaluation Module in which there is a FTDI chip connected to Micro B connector J9. We also understood that the Hardware interface to Program is Usb connected to J9 and Flash device is FTDI chip.

In TUSB546EVM neither Micro B nor FTDI chip is present. Only Memory present is SPI flash (U7). And the SPI lines are connected to multiple connectors (J8, J11,J12). So we wanted to know which is the Hardware interface (connector) used to Flash the SPI memory? 

4. Does the same GUI explained under TPS6598x configuration tool used for TUSB546EVM too?

5. Can we get pre-programmed PD ICs in TUSB546EVM and for Prototype and Production?

6. Almost a repetition of Deepika's question : Other than the GUI programming for the Flash, Any scope is there on the Linux Driver side from the Host (Snapdragon Processor in our case) ? 

We had almost finalized our approach for DP over Type C in our custom board (HDMI to DP converter chip + TUSB546+TPS6598x chips). Just before we finalize our design, we would like to Test connecting our Snapdragon Processor SOM with the respective EVMs (HDMI to DP EVM and TUSB546EVM). As these are pretty costly items, we would like to make sure of the Software concerns very crystal clear before purchasing the EVM. So we expect very detailed and descriptive responses for these queries. 

Thanks for understanding!

Hello,

Please find my responses below:

1. There are a number of different tools or methods to flashing a binary image to an external EEPROM. Can use a dediprog or aardvark. This step is not specific to our device. Once you flash the the image to the EEPROM, the PD controller will automatically pull the binary image from the EEPROM during the next power cycle

2. You do not need a linux driver. The PD FW image on the external EEPROM is sufficient

For the other questions, I will loop in the individual responsible for this device to better answer your questions

Thanks for the reply.

So from your response, we understood that we shall use programmers like dediprog or aardvark to program EEPROM. We are still not understanding on how to generate binary files. SO to avoid confusions  We request TI to generate and share the Binary file with us for the EVK and for our custom prototype. 

Regarding my previous Query #3 : checking the schematics of TUSB546EVM, we came to know that J11, J12 are NC. SO It should be J8 used for flashing the EEPROM.

Also Question 5 looks invalid, because it is EEPROM programming and not PD IC. Also we believe PD does not have any internal flash. Please confirm is that right understanding.

But we are still concerned on How EEPROM programming can be done for production? The quantity of EEPROM chips will be huge and programming each EEPROM is not practical! 

Hi,

The TPS6598x configuration tool was used for TUSB546EVM development. There is a option GUI tool to save the project output as a full flash image and not just flash from the GUI its self refer to the below screenshot.

From a OS perspective I can only think to look into if USB billboard is supported by your OS. This is outside the scope of TUSB546 and PD controller programming. The USB billboard interface occurs over USB 2 connection.