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Altera_Forum
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15 years ago

Cyclone III programming problem (JTAG and AS)

Hello All, Please help! We have a problem with Cyclone III devices programming. We are using the board with 5 Cyclone III devices, connected in Combining JTAG and Serial (ESPC64) configuration. Fi...
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Altera_Forum
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14 years ago

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please let me know if you have any idea as yours design seems to work with cpld and fpga.

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You can try resetting the JTAG chain and the toggle TCK and assert TMS to bring the JTAG TAP into the Shift-DR sequence. The default contents of the DR register are the device ID code. Toggle TCK 32 times, and probe TDO. It should toggle - on all device outputs.

Cheers,

Dave