Finally, I solved this problem. HS3 detect Artix A7. :)
Please see the attached image for solution. and also refer page no. 2 in https://reference.digilentinc.com/_media/jtag_hs3:jtag-hs3_rm.pdf
Main problem was very difficult to identify which pin is 1,2 and so on in JTAG-HS3 in reference manual doesn't represent it.
@JColvin In HS2 pin details clearly mentioned https://store.digilentinc.com/jtag-hs2-programming-cable/ but HS3 doesn't mention https://store.digilentinc.com/jtag-hs3-programming-cable/ I spend to much time for solve it. forum not bad.
Dear Digilent Please Update in reference manual otherwise misunderstood and waste of time.
@zygot who responsible for this?
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Please accept my solution and give Kudos.
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