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21615 Discussions

Device not detected 7000 series.

Altera_Forum
Honored Contributor II
‎12-31-2009 11:44 AM
1,214 Views

Hi All 

 

I've been using an epm764lc44-10 for a project for a while but these are very expensive to get now.  

I got a load of epm7064li44-15 which are compatable with the code but i can't get these devices to show up when i click 'detect jtag info' using the altera programmer... 

Programmer is Byteblaster II. 

The 7064lc44-10 detect fine and program without any problem. 

 

Any ideas why? 

 

Thanks 

 

Rob
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Altera_Forum
Honored Contributor II
‎01-01-2010 12:05 PM
507 Views

As one possible explanation, the devices may be pre-programmed with configuration that uses the JTAG pins for general IO. In this case, a parallel programmer would be needed to reenable the JTAG interface. 

 

There have been also MAX7000 types without ISP (JTAG) function.
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Altera_Forum
Honored Contributor II
‎01-01-2010 02:55 PM
507 Views

Thanks for the information, i will look into that.. 

 

Cheers 

 

Rob
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