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Adventurer
Adventurer
6,706 Views
Registered: ‎09-30-2014

Problems when exporting hardware from Vivado with Zynq running at 1 GHz CPU FREQ or 667 DDR FREQ

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We have a design using a Zynq 7045 with a -3 speed grade.  We are using Vivado 2014.4.   When we set the CPU Frequency greater than 867 MHz or the DDR Frequency above 533 MHz and try to "Export Hardware", then ".hwh" file used by either the SDK or Petalinux is incorrect.  When pushing the DDR Frequency about 533 MHz, the system says the available DDR Memory is only 512 MB when it should be 1024 MB  (it is correct when we drop the frequency back to 533 MHz and regenerate the export).  When we boost the CPU Frequency about 867 MHz, then the CPU_1X (APER_CLK) doesn't go up, but drops back down to 111 MHz.  When dropping the CPU Frequency back down to 867 MHZ, the CPU_1X (APER_CLK) sets back correctly to the 144.4444 MHz it should at that frequency.

 

Has anybody seen this behavior?  Is there a work around?

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Adventurer
Adventurer
12,712 Views
Registered: ‎09-30-2014

Re: Problems when exporting hardware from Vivado with Zynq running at 1 GHz CPU FREQ or 667 DDR FREQ

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Moderator
Moderator
6,694 Views
Registered: ‎07-31-2012

Re: Problems when exporting hardware from Vivado with Zynq running at 1 GHz CPU FREQ or 667 DDR FREQ

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Hi,

 

Could you share your bd tcl file and sdk workspace?

 

Regards

Praveen


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Adventurer
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12,713 Views
Registered: ‎09-30-2014

Re: Problems when exporting hardware from Vivado with Zynq running at 1 GHz CPU FREQ or 667 DDR FREQ

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