cancel
Showing results for 
Search instead for 
Did you mean: 

USB Superspeed Peripherals

Contributor II

Hi All,

I have some boards that I forgot to make connections to the CX3's PMODE pins.  As you'd expect I don't seem to be able to load code in the boards.  I did however, add a CY7C65215 to the board as a programming interface.  This chip is wired to the TMS pins as well as the CYUSB3064's RX & TX pins.  Can this interface access the CX3's programming interface?

Thanks,

Scott

0 Likes
Reply
1 Solution
Moderator
Moderator

Hi Scott,

JTAG should work.

Please test it and update the results.

Please note that with all the PMODE lines floating device can come up as CypressSD3, WestBridge or Benecia device.

Thanks & Regards

Abhinav

View solution in original post

0 Likes
Reply
4 Replies
Contributor II

Along this same line, I see no documentation on how the CY7C65215 interfaces with the FX3 SDK to act as a JTAG debugger.  Can you point me in the right direction?

Thanks,

Scott

0 Likes
Reply
Moderator
Moderator

Hi Scott,

If PMODE pins are not connected properly according to the given configuration as mentioned in AN 76405 then then CX3 may come up as Benecia device. You will not be able to load the firmware into the device.

If you want to know more about JTAG debugging using CY7C65215 please refer to USB-Serial as JTAG Master - KBA224254 .

Thanks & Regards

Abhinav Garg

0 Likes
Reply
Contributor II

Hi Abhinav,

The JTAG interface could still communicate with the CX3 if it were in this state, correct?

Thanks,

Scott

0 Likes
Reply
Moderator
Moderator

Hi Scott,

JTAG should work.

Please test it and update the results.

Please note that with all the PMODE lines floating device can come up as CypressSD3, WestBridge or Benecia device.

Thanks & Regards

Abhinav

View solution in original post

0 Likes
Reply