Programmable Devices
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data changed from RAM output port

XG_Kang
Novice
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I have a design using 10AX057N4F40E3SG compiled with Quartus Prime Standard 17.1, these is a error with simple dual-port RAM,that is data changed in the RAM when data is read out。the Dual-Port RAM is configured as 2048-depth and 32-bit word width. I tested the dual-port RAM with a serial of ascending data at the write port , and then read those data out at the read port, and find somewhere data changed. As showed in the attachment, the expecting data should be 'Bxxx',but the read-out data actually is '9xxx',bit25 changed from 1 to 0. The logic utilization is 74% in ALMs,and the total memory bits used is 52% for the whole design. I wonder why this happened ,and how to solve this problem?

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KhaiChein_Y_Intel
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Hi,

 

The attachment cannot be opened. Can you reattach? Also, can you provide the design.qar for investigation?

Which Edition and version of the software you were using?

 

Thanks.

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KhaiChein_Y_Intel
768 Views

Hi,

May I know if you have any updates?

Thanks

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