Programmable Devices
CPLDs, FPGAs, SoC FPGAs, Configuration, and Transceivers
20705 Discussions

Configuration Issues

Altera_Forum
Honored Contributor II
‎07-20-2007 12:09 AM
949 Views

Hi, 

 

My current project is on the ACEX1k and my problem is that when I configure using my byte blaster cable, all works well but when I try configure using the ECP1C8, the logic is no longer correct. I also notice that a typical output pin frequency doubles when using the EPC1. The EPC1 configure done signal goes HI so it passes configuration. 

 

My older projects on the ACEX1K still works normally. 

 

Attached is my project for your perusal. 

 

Thanks for any help. 

 

Vic
MultiL_31.qar
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Altera_Forum
Honored Contributor II
‎07-20-2007 02:23 AM
262 Views

Hi, 

I just checked up your Device & Pin options, 

You are using INIT_DONE, I hope this is pulled up externally 

with 10K.
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Altera_Forum
Honored Contributor II
‎07-20-2007 04:02 PM
262 Views

Yes, it is pulled up and as I said the EPC1 config done signal goes HI like any normally operating configuration chip.

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