JTAG-HS3 Pin Setup

[asdf]

I've hooked up the JTAG-HS3 to my windows computer. Vivado finds the target, but says "no devices detected on target". It says to check cable connectivity, but there's very little documentation about how to hook this up. My FPGA board doesn't have the 14-pin header, just female headers. I've shoved jumpers into the TMS, TCK, TDO, and TDI pins, and a 1.8V line into VREF (JTAG-HS3 pinout below left used). Do I need to use one or more of the ground pins? Do I need to hold SRST high or something? Any info will be helpful!

Much thanks in advance.

[JColvin]

Hi @asdf,

You will need a ground connection so that the voltage levels are consistent between the devices, and so that Vivado will actually detect a JTAG programmer and the downstream FPGA (presuming it is being powered separately), but if you connections are correct you will then be able to load a bitstream to the FPGA, as I have done in the picture below. PS_SRST_B is only needed if you are connecting to a Zynq device.

For clarity, here is an alternate view of the pinout.

Let me know if you have any questions.

Thanks,
JColvin