Programming Arty with Xilinx Platform Cable USB II

[zwabbit]

I have an Arty that I've successfully programmed using the FTDI USB to JTAG interface. When I try to program it using the Xilinx platform programmer hooked up to the J8 pins (there's an extra wire that's left hanging) the programmer lights up green as if it detects the board, but Vivado (2016.2) can't find the Artix chip inside its hardware manager. Is there some specific settings that need to be changed to get Vivado to see the device? The Arty reference page itself mentions that I should be able to use a Digilent JTAG-HS2 to program it, but can I even use the Platform programmer instead?

[jpeyron]

Zwabbit,

The Xilinx platform programmer should be able to see the fpga in the scan chain. Are you trying to access the fpga from the jtag usb and through the Xilinx platform programmer at the same time? This would cause an issue.

cheers,

Jon

[zwabbit]

No, the USB cable is disconnected, we're powering the FPGA via a 12V 1A power supply.

[jpeyron]

Hi zwabbit, 

We were able to see the fpga using vivado and the JTAG-HS2 at J8. So i would guess that it is either Xilinx's tools having issues or you might need to check the wiring on the programmer to ensure that it is wired correctly. 

cheers,

Jon

[zwabbit]

What is the actual pinout of the J8 header? The schematic shows the pins as 1 through 6 with TMS as 1 and VCC as 6, but what's the actual direction of the pins on the Arty itself? And is the schematic ordering actually also what the pins are ordered on the board?

[jpeyron]

Hi zwabbit,

The schematic ordering is what the pins are ordered on the board. In reference to the arty TMS,TDI and TCK are inputs to the arty and TDO is an output. 

thank you,

Jon