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AOzde's avatar
AOzde
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7 years ago

TDI pin seems to be pulled down and FPGA is not programming.

Hello, I use EP3C16Q240C8N FPGA on our custom board. I have been working on the same board more than one year. Last week one of my board gave an error and I could not program this board anymore. I ...
AOzde's avatar
AOzde
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7 years ago

Hi,

We checked the JTAG connections again. Everything seems to be ok. Actually I have four of the same boards all of them working properly and three of them can be programmed but one of them can not. The board that can not be programmed was also programming during the past 12 months. But something happened, I dont know why, and then We have not been able to program it again. Do you have an idea about the issue? Or what information else we need to give you in order to you understand the issue?

We will be appreciated of your help,

Thank you,

Ahmet