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lidongyang's avatar
lidongyang
Icon for New Contributor rankNew Contributor
2 years ago

Can HPS arm and FPGA fabric shared DDR?

Hi, I have a question about DDR usage: 1. Can HPS arm and FPGA fabric share DDR. 2. if DDR has 4 channels, can HPS use 2 channels to access DDR and FPGA fabric access through the other 2 channels?...
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tehjingy_Altera's avatar
tehjingy_Altera
Icon for Regular Contributor rankRegular Contributor
2 years ago

Hi lidongyang


Yes you are able to share DDR between the FPGA Fabric and HPS arm.

HPS Arm is able to access the DDR through the DDR Controller or HPS EMIF depending on device through the L2 Cache. The FPGA Fabirc is able to access the DDR through the FPGA2HPS bridge through the L3 cache.

Which device you are using at the moment?


Regards

Jingyang, Teh