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Altera_Forum
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18 years ago

JTAG Access for ID Read

Hello All , I have designed a JTAG controller using FPGA I could verify my write sequence by monitoring TMS and TDO on the scope , All the signal looks fine on the scope And I hope to...
Altera_Forum's avatar
Altera_Forum
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18 years ago

In order to read the JTAG ID code of the device, you need to know the JTAG instruction for that purpose. You can refer to the FPGA handbook for the instruction code.

You need to shift in the instruction code to the device through JTAG in order to read the JTAG ID code of the device. Hope this helps.