Fancellu Posted February 7, 2018 Share Posted February 7, 2018 https://reference.digilentinc.com/basys3/refmanual#fpga_configurations It mentions J5, 6 pin JTAG header. Later on it says " J5 (located below port JA)" I can't see any such thing. Link to comment Share on other sites More sharing options...
jpeyron Posted February 7, 2018 Share Posted February 7, 2018 Hi @Fancellu, Sorry about the confusion, J5 is directly behind JA on the back of the board. thank you, Jon Link to comment Share on other sites More sharing options...
Fancellu Posted February 7, 2018 Author Share Posted February 7, 2018 I can't see it. I am looking for 6 pins. i.e.https://reference.digilentinc.com/_media/jtag_hs2:jtag-hs2_rm.pdf Link to comment Share on other sites More sharing options...
JColvin Posted February 7, 2018 Share Posted February 7, 2018 Hello @Fancellu, I've put a box around the pins that you are looking for. I'm not certain why there isn't a silkscreen label for it though. Let us know if you have any questions about this. Thanks, JColvin Link to comment Share on other sites More sharing options...
Fancellu Posted February 7, 2018 Author Share Posted February 7, 2018 Oh, was expecting male pins, as per the hs2 docs. How would the hs2 plug into it?https://reference.digilentinc.com/_media/jtag_hs2:jtag-hs2_rm.pdf Link to comment Share on other sites More sharing options...
JColvin Posted February 7, 2018 Share Posted February 7, 2018 Oh, I see. You would need some sort of gender changer (like these) or some breadboard jumper wires. I believe the reason JTAG HS2 doesn't readily connect to the Basys 3 is because the JTAG HS2 is designed for other FPGA boards that do not have that circuitry already built into it; the Basys 3 already has that circuitry, so you don't actually need the HS2 to program the Basys 3 (unless you want to). Thanks, JColvin Link to comment Share on other sites More sharing options...
Fancellu Posted February 7, 2018 Author Share Posted February 7, 2018 Yes, i have no immediate need, the USB works fine, it just because the docs say you can, and I couldn't work out where or how. Sounds like something else for the docs. Re the female J5, there seems to be some mysterious matching holes on the left hand side too. The thing is, both columns of pinholes are so staggered that it looks like it was put on by mistake, ha Link to comment Share on other sites More sharing options...
JColvin Posted February 7, 2018 Share Posted February 7, 2018 Hello, I've updated the reference manual on the Wiki to help clarify where J5 is; I'll be sure to request that the PDF is updated as well. Agreed, I'm not certain what the holes on the left side of the board are either, I can't find any sort of documentation explaining them. The staggering of the holes is so that you can plug in a 6-pin header and have it make contact with all of the holes without the need to solder it in. Thanks, JColvin Link to comment Share on other sites More sharing options...
Fancellu Posted February 7, 2018 Author Share Posted February 7, 2018 What's the url for the wiki? Link to comment Share on other sites More sharing options...
JColvin Posted February 7, 2018 Share Posted February 7, 2018 Hello, The url for the Wiki link is: https://reference.digilentinc.com/reference/programmable-logic/basys-3/reference-manual Thanks, JCovlin Link to comment Share on other sites More sharing options...
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Fancellu
https://reference.digilentinc.com/basys3/refmanual#fpga_configurations
It mentions J5, 6 pin JTAG header. Later on it says " J5 (located below port JA)"
I can't see any such thing.
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