Programmable Devices
CPLDs, FPGAs, SoC FPGAs, Configuration, and Transceivers
21592 Discussions

Cyclone II configuration problem

Altera_Forum
Honored Contributor II
‎04-10-2008 09:01 PM
1,020 Views

I am debugging a new board which uses an EP2C5Q208C8 and an EPCS4SI8N. 

 

I was able to configure the EP2C5 several times using JTAG, and had many things working. However, the EP2C5 now appears not to accept the configuration - nothing works after configuration, although the programmer seems to recognize the chip, and reports that it successfully performed the operation. If I recall correctly, when the thing worked, data was transferred slowly enough that I could see the progress bar move, but now it just pops up to 100% instantly. 

 

I did try using Active Serial to program the EPCS4, but the EP2C5 doesn't work after that either. 

 

All supply voltages appear correct. 

 

Any ideas? Have I blown the EP2C5? (It was my last one, but I've just ordered more)
0 Kudos

Link Copied

1 Reply
Altera_Forum
Honored Contributor II
‎10-07-2008 05:19 PM
310 Views

Check the JTAG signals TCK, TMS, TDO and TDI on an oscilloscope while downloading the files. If they are all fine, then your device is fine too.

0 Kudos
Copy link
Reply

Community support is provided Monday to Friday. Other contact methods are available here.

Intel does not verify all solutions, including but not limited to any file transfers that may appear in this community. Accordingly, Intel disclaims all express and implied warranties, including without limitation, the implied warranties of merchantability, fitness for a particular purpose, and non-infringement, as well as any warranty arising from course of performance, course of dealing, or usage in trade.

For more complete information about compiler optimizations, see our Optimization Notice.