There is nothing special in programming with a miniprog3. Your "small" modifications could be the reason. Do you use Creator3.3? Can you post your complete project, so that we all can have a look at all of your settings? To do so, use
Creator->File->Create Workspace Bundle (minimal)
and attach the resulting file.
That is entirely possible. I use Creator 2.2. Hope thats not an issue.
Heres the minimal bundle.
Thank-you for taking the time to look into this!
Is there a reason for you using Creator 2.2 instead of 3.3? there have been dramatic changes made and issues corrected.
When I open your project in Creator 3.3 there are two components missing and a lot of components require an update.
Your modifications are concerned with the USB-port?
I used Creator 2.2 because the example code was written using 2.2 and I didn't want to veer off the working example. There seems to be some issues when converting the project to Creator 3.3 that I didn't want to get bogged down with.
I only modified the target device from the CY8CKIT-042 Pioneer Kit's CY8C5868LTI-LP039 to the CY8C5667LTI-LP009. I did this in the main project and also the Bootloader and Bootloadable projects. I also dropped the VDD voltages down to 2.5V rather than 3.3V as the board we use runs at that V. I didn't change anything USB related.
As Im directly programming the MCU over SWD maybe I don't need the bootloader and bootloable components? Could this be affecting the devices ability to boot and enumerate?
Can you program a simple USBFS program to the PSoC5LP and check if the USB is enumerating in this case.