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Altera_Forum
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14 years ago

JTAG interface

Hello, I would like to interface Cyclone IV JTAG interface via both ways : 1. JTAG USB blaster. 2. FTDI FT2232 MPSSE interface. I am using VCCIO 3.3V in Jtag bank and in figure 8-23 in c...
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Altera_Forum
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14 years ago

Hello FvM,

Upon reading your comment, I believe that I will be using instead the SN74LVC244A OCTAL BUFFER/DRIVER WITH 3-STATE OUTPUTS, and have it always enabled with a weak pull up or pull down resistor to set the value. Will this change enable me to drive the JTAG lines correctly?

Regards,

Michael