Take CYPD3125 for example. Here are the steps to change it to CYPD3123:

1.Right click on Project ‘CYPD-3125-40LQXI_notebook01’ [CYPD-3125-40LQXIT] and choose Device Selector…

Change the part number from CYPD3125-40LQXIT to CYPD3123-40LQXIT

2. TopDesign.cysch page, double click on Bootloadable_1 component. Click on Dependencies tab and change the path of Bootloader HEX file. The bootloader file of CYPD3123-40LQXIT can be found in “C:\Program Files (x86)\Cypress\EZ-PD CCGx SDK\CCG3-CCG4\Firmware\projects\CYPD3123-40LQXI_ctd_us\CYPD3123-40LQXI_ctd_us.cydsn\Bootloader”. The Bootloader ELF file path will be changed automatically when Bootloader HEX file path has been modified.

3.Compile the project.

 

The project still uses the USB bootloader of the CYPD3123. If you want a CYPD3123 project with I2C bootloader, then you’ll need project file for the bootloader of CYPD3125 (which is not included in the current version of SDK). Change the device part number with the same steps above, then use the generated HEX file for bootloader dependency.