09-12-2019 06:22 AM
I am trying program xilinx Artix 7 35T FPGA board using Digilent HS3 programmer. I connect 4 wires of JTAG correctly and also connect VCC and ground properly, whille programming FPGA error comes fpga is not detected.
JTAG HS3 is detected in my PC properly .
one thing else i dont understand how to handle SRST pin in JTAG HS3.
09-12-2019 08:50 AM
I see that your JTAG clock frequency is pretty high (30MHz). The Artix-7 might not be able to communicate at that speed.
Could you please lower the JTAG frequency to 10MHz or less and see if the board gets recognized?
09-12-2019 09:14 AM
These guides have lots of useful advise on these problems :
Re the specific reset pin on the HS3,
unless yo uhave a Zynq part, it not part of JTAG , its an output fomr the HS3, ignore it , make it no connect.
09-16-2019 05:05 AM
09-16-2019 07:04 AM
How do yo know your board , cable and laptop work at teh 30 MHz rate ?
unless you have good temrination on the JTAG , and a fast PC USB ( does not depend upon the CPU frequency , and good cables, you don't knwo unless you , meassure.