Getting Started with EZ-
PD™ CCG3PA
www.cypress.com
Document No. 002-18179 Rev. **
20
Figure 16. EZ-PD Analyzer Utility Showing PD Packets Captured on CC Line
SRC PDO2: 9V, 2A
SRC PDO1: 5V, 3A
5V
10. The CC trace capture shown in
shows that a power contract for 5 V is established, and the CY4532
CCG3PA EVK is providing 4.8 V to the device. During the power negotiation phase, the power provider (that is,
the CY4532 CCG3PA) sends the
Source_Capabilities
message to the attached power consumer device (that
is, the MacBook). The
Source_Capabilities
shows the custom PDOs (
Power Data Obj-
Source 1
and
Power Data Obj-Source 2
) supported by the Type-C power adapter.
11. The
Request
message after the
Source_Capabilities
message is always sent by the power consumer device to
request power. Because the Type-C device can establish a power contract for 5 V but not the 9 V that is also
offered, the MacBook requests the PDO object at position 1, which corresponds to the 5-V PDO. Refer to
USB
Power Delivery (PD) Spec Revision 2.0, Version 1.1
for more details on PD messages.
12. Looking at the
and as mentioned in step 9, it can be seen that the VBUS voltage is
set to 4.8 V at the end of the power contract negotiation. This confirms that at the initial stage of the setup, the
power contract of 4.8 V is established between the CY4532 CCG3PA EVK and the Type-C device.
5.2
Modify Configuration Parameters Using EZ-PD Configuration Utility
This section guides you through modifying one of the parameters using the EZ-PD Configuration Utility. By adding a
higher, compatible power profile to the configuration of the CCG3PA firmware, the device will be able to accept a
higher, faster charging voltage value. Ensure that the latest version of the EZ-PD Configuration Utility is installed on
your computer.
1.
Make sure that your device‘s jumpers are set to Power Adapter mode using the jumper location description
shown on the silk screen on the CY4532 Main Board. Connect a mini USB cable between
your PC‘s USB port
and J11 on the CY4532 Power Board. Also, connect the Type-C ports of the CY4532 CCG3PA
EVK‘s main
board and power board using a Type-C cable. Connect the 12-V power adapter to the DC power jack (J3) of the
power board and move switch SW1 to the ON position.
2. Open the EZ-PD Configuration Tool. The GUI should report one device connected in the status bar of the GUI.
3. Go to
File
>
Read
from device
. Ensure that the 'UFP-AMA' device is selected and then click
Read
. The EZ-PD
GUI will be populated with the firmware settings read from the CCG3PA device.
