RYO Posted November 10, 2017 Share Posted November 10, 2017 Hello, everyone. We are planning to access JTAG by attaching a pin header to J8 of Arty board in order to confirm efuse access. (I dont use USB-JTAG.) Which signal corresponds to each of the six through holes of J8? I check the reference manual and circuit diagram, but there is no clear description. From the relationship with the D1 diode on the circuit diagram, I guess the following order. Is it correct? 1. TMS_JTAG (suquare, 1 pin mark?) 2. TDI_JTAG (circle) 3. TDO_JTAG (circle) 4.TCK_JTAG (circle) 5. GND (circle) 6. VCC 3 V 3 (circle) best regards, ryo Link to comment Share on other sites More sharing options...
jpeyron Posted November 10, 2017 Share Posted November 10, 2017 Hi @RYO, You are correct. 1. TMS_JTAG (square, 1 pin)2. TDI_JTAG (circle)3. TDO_JTAG (circle)4.TCK_JTAG (circle)5. GND (circle)6. VCC 3 V 3 (circle) cheers, Jon Link to comment Share on other sites More sharing options...
RYO Posted November 12, 2017 Author Share Posted November 12, 2017 Hi jpeyron Thank you very much! Best regards, Ryo Link to comment Share on other sites More sharing options...
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RYO
Hello, everyone.
We are planning to access JTAG by attaching a pin header to J8 of Arty board in order to confirm efuse access.
(I dont use USB-JTAG.)
Which signal corresponds to each of the six through holes of J8?
I check the reference manual and circuit diagram, but there is no clear description.
From the relationship with the D1 diode on the circuit diagram, I guess the following order.
Is it correct?
1. TMS_JTAG (suquare, 1 pin mark?)
2. TDI_JTAG (circle)
3. TDO_JTAG (circle)
4.TCK_JTAG (circle)
5. GND (circle)
6. VCC 3 V 3 (circle)
best regards,
ryo
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