onsemi FUSB307BGEVB Type-C Port Controller IC Evaluation Board User Manual

onsemi FUSB307BGEVB Type-C Port Controller IC Evaluation Board User Manual

This user guide supports the evaluation kit for the FUSB307B. It should be used in conjunction with the FUSB307B data sheets as wellas ON Semiconductor’s application notes and technical support team. Please visit ON Semiconductor’s website at www.onsemi.com.

INTRODUCTION

The FUSB307B evaluation board and included software allows customers a complete platform to evaluate the Type−C interface detection solution the FUSB307B provides. The evaluation board is designed for both stand-alone operation and connection to test equipment for specific testing requirements. The FUSB307B software provides both fully automatic control and manual control of the FUSB307B functions. With a single connection to a PC and a couple configurations in the GUI, the evaluation board can function as a Source, Sink, or Dual Role port.

Description

The FUSB307B targets system designers looking to implement up to four USB Type−C port controllers (TCPC) with USB−PD capabilities.
This solution provides integrated Type−C Rev 1.3 detection circuitry enabling manual attach/detach detection. Time critical Power Delivery functionality is handled autonomously, offloading the Processor or Type−C Port Manager (TCPM). The FUSB307B complies with the USB−PD Interface Specification.

Figure 2. Block Diagram

Features

• USB−PD Interface Spec Rev 1.0 Ver. 1.2 Compatible
• USB Type−C Rev 1.3 Compatible
• USB−PD Rev 3.0 Ver. 1.1 Compatible
• Fast Role Swap
• Sink Transmit
• Extended Data Messages (Chunked)
• Dual−Role Functionality
  • Manual Type−C Detection
  • Automatic DRP Toggling
• USB−PD Interface Specification Support
  • Automatic GoodCRC Packet Response
  • Automatic Retries of Sending Packet
  • All SOP* Types Supported
• VBUS Source and Sink Control
• Integrated 3 W Capable VCONN to CCx Switch
• 10-bit VBUS ADC
• Programmable GPIOs
• 4 Selectable I2C Addresses
• Dead Battery Operation
  • Powered from VBUS
  • LDO Output provides power to TCPM
• Packaging
  • 16-pin WQFN (3.0 × 3.0 mm)

Figure 3. Evaluation Board Layout

POWER CONFIGURATION

The FUSB307B evaluation board is designed to be able to be powered from just the PC connection or powered externally based on the testing requirements. To use the external VDD to the device, take the jumper off of JP1 and connect external VDD to the middle post of JP1, which is FUSB307B VDD.

Power Supplied from Board
The FUSB307B can fully operate from the VBUS input of the micro-B USB receptacle J3. To operate the evaluation  board, the USB power should be provided to the board over the micro-B USB. Then, the on board regulator (LDO) generates VDD, which is 3.3 V for device supply. Once valid USB power is provided, the indicator LED, 3.3 V, is turned on.

I²C Connection
Direct I2C Connection Customers that want to directly connect their I2C masters to the evaluation board can connect the I2C master signals to the SCL, SDA, and INT_N test points.
PC I2C Connection
The evaluation board uses an STM32F072CB micro-controller-unit (mcu) as an I2C master to control the FUSB307B. This is the communication method used by the FUSB307B GUI. By connecting the PC to the micro-B USB receptacle J3, the evaluation board automatically powers the microcontroller and connects the I2C master to the FUSB307B.

TYPE−C SIGNAL CONNECTIONS
The FUSB307B evaluation board allows different ways of connecting to another Type−C device or controlling the signals of the Type−C receptacle based on the type of testing that is required.

CC Pins
The Type−C CC1 and CC2 pins are directly connected to the Type−C receptacle J1 on the board. Each CC pin has a series jumper (JP7, JP14) which is useful to measure voltage and current. Note that the FUSB307B evaluation board contains the minimum cReceiver capacitance specified in the USB PD specification for the CC pins which is 220 pF. This capacitance is C27 and C28 in the schematic.

VBUS 5 V
VBUS is used differently based on the Type−C port type. The FUSB307B controls an integrated load switch (FPF3695) for Sink and Source path depending on what device is connected. In each case, an LED indicator (SNK ON and SRC ON) tells which VBUS power path is established. A test point for VBUS voltage sensing (VBUS_S) is located near J1. The EVB is designed to supply 5.0 V VBUS from PC USB power or an external supply. This option can be configurable by JP16 as shown below.

Figure 4. V5P0 Power Selection

• Jumper on VBUS_MC: PC USB power to V5P0
• Jumper off: external power (5 V test point) to V5P0
• Jumper on VBUS IN: VBUS SRC (from source device) power to V5P0.

VBUS Greater Than 5 V
To offer VBUS greater than 5 V, the 12 V test point can be used as an input for a VBUS level of 9 V, 12 V, 15 V, or 20 V. This input is controlled by the FPF2895C load switch and the SRV_HV_ON signal from the mcu. If this high voltage VBUS will be used, the JP8 jumper needs to be shorted so that this high voltage VBUS can be switched onto the VBUS rail to the Type−C connector at J1.

VCONN
VCONN can be supplied to the FUSB307B externally through the VCONN test point found along the External Power Inputs test points.

USB2.0 and SBU
They are left open in the Type−C connector with no connections to other circuitry on the board. Test points are near the Type−C connector J1.

STATUS LED’S
The following status LEDs are provided on the evaluation board. All of the LEDs can be disconnected by JP11 and JP12.

Figure 5. LED Indicators

Table 1. STATUS LED’S

Figure 6. FUSB307B Evaluation Board FM160305D Schematic (1/2)

Figure 7. FUSB307B Evaluation Board FM160305D Schematic (2/2)

FUSB307B EVALUATION PLATFORM GUI CONFIGURATION

GUI Installation
Instructions for installing ON Semiconductor FUSB307B Control Software

1. Locate and extract the file “FUSB307B_gui_1_1_0_Customer.exe” (versions of the file will include the release number) from the archive file “FUSB307B_gui_1_1_0_Customer.7z”. The .exe can be located in any location you prefer. Double-click the .exe file to start the GUI.
2.  Plug the STD−A end of the USB Cable into the USB port of your PC.
3. Plug the Micro−B end of the USB Cable into the GUI Interface (J3 at the top right corner of the board) on the Evaluation Board. V3P3_SYS LED will illuminate if properly connected.
4. Wait for the USB Port to connect with a message in the lower left hand corner of the GUI that states “USB Device: VID:0x1057 PID:0x0133” and “Device Connected v1.1.1” in the lower right corner (or a newer version if applicable). If the message states “Disconnected”, then there is a connection problem.

Upgrading the GUI Software:

1. Simply delete the previous version of the .exe.
2. Repeat the installation process above.

GUI OPERATION

Program Startup
To operate the FUSB307B Evaluation Platform, perform the following steps:

1. Install the FUSB307B GUI software as described in the previous section.
2. Connect the FUSB307B board to your computer with a micro-USB cable.
3.  Start the GUI software by double-clicking the .exe file from the location you saved it to.
4. The base operation GUI will appear as shown in Figure 8 below.
5.  The lower right part of the screen will now indicate “Device Connected v1.1.1” (the version number may be different as newer firmware is  released). If this is not shown, there is a likely a power configuration issue with the FUSB307B device. If power is supplied correctly, check that the firmware was programmed correctly. The document for firmware download is posted separately. You can now read, write, and configure the FUSB307B. Accessories can be plugged in and used.
   
   Figure 8. Initial Page of FUSB307B GUI
   

USING THE GUI

There are two basic modes to control/monitor the FUSB307B. Pre-programmed firmware on the mcu can control the FUSB307B and then the GUI can work with the firmware to control/monitor the FUSB307B. The GUI can also be used with the Register Map and Script tabs to manually control/monitor the FUSB307B. These two modes should not be used together, as it will interfere with the autonomous mode state machine. By default, the USB Type−C state machine is enabled. The checkbox has to be de-selected to use the device manually. Status information is shown in the top half of the window, as well as in the “PD Control” tab and the “State Logs” tab. Scripts can also be loaded in the “Script” tab for easier loading of multiple sequential steps.
More information on specific operation of each section of the GUI is provided in the following sections.

File Menu

• “File”
  • Click “Exit” to exit the FUSB307B GUI program
• “Preferences”
  • Select “Auto Poll” to automatically update the GUI  with the FUSB307B status
• Help”
  • “About” provides GUI version information

General
General This tab provides the overall device status. The lower third of this tab is the “Control” section. When the FUSB307B  EVB is initially connected to the PC, this section will automatically update itself. At any time after that, the “Read Config” button should be used before making any changes to this section. The port type can be set to either DRP, Sink, or Source, and other features can be enabled or disabled here. After making any changes, press “Write Config” to update the device with any changes.

Figure 9. General Tab

PD Control
This tab logs any PD activity with PD Message History Box. The log file can be expanded or collapsed to show more or less detail of the PD packets. The other control boxes indicate the current state of the PD state machine and what contract was negotiated. When connected as a sink, it displays the source capabilities of the source that is attached. The user can select different capabilities and make the requests. The user can also manually send different PD messages through the pull-down menu and the click buttons.

Figure 10. PD Control Tab

State Logs

Events can be logged in the software by checking the “Auto Poll” option in the Preferences menu. These logs can be useful in debugging and in checking the timing of various operations. Each log message has the timestamp (with 100 s resolution). To stop logging, click the “Auto Poll” option in the Preferences menu.
An example of a Type−C attach and the PD communication flow is shown below.
To support debug efforts, the “Set State” button can be used to force a specific state machine state. The state can be selected in the pull down menu to the left of the “Set State” button.
The screens can be cleared with the “Clear State Log” and “Clear PD State Log” buttons to the right of each window. Either Type−C State log or Policy Engine State log can be saved to a text log file using the “Save TC Log” and/or “Save PD log” buttons.

Figure 11. State Logs Tab

Capabilities

The “Capabilities” tab is to set-up PD functionality of the EVB. The settings in this tab dictate how the PD state machine will respond once a connection is made. It is the programmed source and sink capabilities of the device and the charging algorithm that is used to automatically select a source capability when connected to a source. Note, the “Read Src Caps”, “Read Sink Caps”, and “Read Settings” buttons need to be clicked to reflect the default settings of the PD state machine.

Figure 12. Capacitance Tab

Register Map

The “Register Map” tab enables reading and writing any value to any register in the FUSB307B. When performing a register write, the selected register/registers is/are read back again to confirm the write action. So the write button actually performs a write and then a read operation.
The “Device Poll” option tells the GUI to automatically check the DEVICE_ID register for the I2C address selected in the “Addr” pull down box and display the “Device Connected …” or “ No Device” message in the lower right corner of the GUI.
The “Register Poll” option tells the GUI to constantly poll the FUSB307B registers and update the register values. This should be used only for debugging since it can disrupt the timing operations of the firmware.

Figure 13. Register Map Tab

Scripting

This tab enables the use of scripts to configure the FUSB307B. The window in the left side of the tab controls the scripting.
Scripts can be added through the GUI using normal copy/paste methods or imported from an external file using the “Load” button. After achieving a desired setup, a script can also be exported to a file using the “Save” button. Each line of the script should be formatted as follows:

Command, port, I2C addr, # bytes, register addr, data1, , dataN, optional comment

• The Command is: “r” or “w”

• The port is always 0

• The I2C addr is any connected device I2C address

• The # bytes is the number of bytes to read or write

• The register addr is the starting register address

• The data1, …, dataN are for writing values to registers

• And optional comment is just informational
  Each field can be separated with a space (“ ”), a comma (“,”),
  or a semicolon (“;”).
  The Run button will execute all the lines of the script. The Step button will execute the highlighted line. The Loop feature will loop the entire script up to 99 times. Setting Loop count to 0 will loop indefinitely. Some example script commands are given below:

• r 0, 0xA0, 2, 0x04; Read DeviceID

• r 0, 0xA0, 1, 0x1A; Read RoleControl

• w 0, 0xA0, 1, 0x1A, 0x1B; Set Rp 1.5A

• w 0, 0xA0, 3, 0x51, 0x02, 0x47, 0x06; Write PD Byte

• Count and Header for GetSourceCaps

• w 0, 0xA0, 1, 0x50, 0x30; Write Transmit SOP command

Results of an executed script are shown in the box on the right side of the tab. These results can be exported to a file using normal copy and paste functions.

Figure 14. Script Tab

Figure 15. Example Script and Results

VDM
This tab enables supports Vendor Defined Messages (VDM). The “Configuration” section is used for configuring the FUSB307B. The upper left “FUSB305” section window is used for displaying and modifying or adding VDM information to the EVB. Right-clicking on the Sop field allows you to add SVIDs. Right-clicking on an SVID allows you to remove the SVID or add a  Mode. Right-clicking on a Mode allows you to remove it. Retrieving VDM information from a connected device can be done in the lower left “Other” section window. Right-clicking on Sop allows you to request Discover Identity or Discover SVIDs. Right-clicking on a SVID allows you to request Discover Modes. Right- clicking on a Mode allows you to request to Enter or Exit that Mode.

Figure 16. VDM Tab

Arm and Cortex are registered trademark of Arm Limited (or its subsidiaries) in the US and/or elsewhere. USB Type−C and USB−C are trademarks of USB Implementers Forum. ON Semiconductor is licensed by the Philips Corporation to carry the I2C bus protocol.

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