Clarification on RDR-1002 (InnoSwitch5-Pro + IP2756) Communication and Testing Software
I am currently working with the RDR-1002 140W USB PD 3.1 Extended Power Range (EPR) Evaluation Board, which includes the InnoSwitch5-Pro (PowiGaN), HiperPFS-5, and the Injoinic IP2756 USB PD Controller.
I would like to perform testing and control operations on the InnoSwitch5-Pro through the IP2756 PD controller. However, I couldn’t find documentation on:
The software tool or GUI required to communicate with the IP2756 (for sending I²C or PD commands to the InnoSwitch5-Pro).
The command set or communication protocol details (PI command set) used between the IP2756 and the InnoSwitch5-Pro.
Any reference scripts, firmware examples, or host interface documentation for PC-based control or testing of the RDR-1002 board.
Could you please guide me on where to find this information or share the appropriate documentation/software tools for controlling and testing the InnoSwitch5-Pro via IP2756?
Hi TEMC,
The RDK-1002 comes completely built with the IP2756 USB-PD controller already programmed.
You can confirm the USB-PD source capabilities if you have a sink device that supports USB-PD protocol.
In Standard Power Range (SPR) mode, the following Power Delivery Objects (PDO) are accessible.
If you have a sink device and a USB-C cable that can support Extended Power Range (EPR) mode, in addition to the PDOs available in SPR mode, the following PDOs also become accessible.
If you are asking for the reference/documentation providing information on how to program the IP2756 USB-PD controller, how it handles the PD transactions/messages, or how it communicates to the InnoSwitch5-Pro, you may need to communicate directly with the IC manufacturer as the IP2756 is a third-party product and is already programmed with the necessary firmware to control the InnoSwitch5-Pro in RDK-1002.
You can monitor the I²C communication through the SDA, SCL and GND pins of the InnoSwitch5-Pro IC to know which registers are being written/read during normal operation of the evaluation board. The InnoSwitch5-Pro Datasheet provides the guide on how our product handles I²C communication and how to access all available command and telemetry registers of the InnoSwitch5-Pro.
https://www.power.com/sites/default/files/documents/InnoSwitch5-Pro_Data_Sheet.pdf?language=en
Thank you for using PI Forum.