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Altera_Forum
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13 years ago

Problem with JTAG

Hi, I use an USB Blaster cable to program an EP3C25U256 an EPCS16 with quartus II web edition 11.1. First, I programmed several times without any problem and after a while, i received an error ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

The last board I programmed had the problem yesterday, and I try to program it again this morning and it doesn't work. There is no buffer between FPGA and connector, the I/O voltage standard used is 2.5V and there is no protection diodes. Moreover, for the last board,each time, I connect the USB blaster wearing a wrist strap. I will try to earth the board and the USB blaster gnd.