FPGA, SoC, And CPLD Boards And Kits
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Cyclone IV is not detecting

atech10
Beginner
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I have Cyclone II board which gets programmed using USB blaster. On that board,

VCCINT = 1.2V

VCCIO = 3.3 V

VCCA = 1.2 V

Now I have made another Cyclone IV board, with above voltages yet USB blaster can not detect JTAG chain.

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a_x_h_75
New Contributor III
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VCCA needs to be 2.5V for Cyclone IV.

 

See Table 1-3:

https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/hb/cyclone-iv/cyiv-53001.pdf

 

Cheers,

Alex

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