This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

SRAM with AM5728

Other Parts Discussed in Thread: AM5728

Hello,

In our design we are using AM5728 

Use case 

Video input---------> FPGA----------> DSP------------->Encoder-----------Video OUT

We want to also connect FPGA with GPMC interface of AM5728 , we will access FPGA as a SRAM (1M x 16) through GPMC interface of AM5728.

If we want to connect as 16 bit GPMc interface  then what will be the speed we can achieve in this case . How we connect GPMC to FPGA ?

Non multiplexed Nor type or Multiplexed Nor type ? can we access FPGA as SRAM through GPMC interface ?

Regards

Neelam

 

  • Hi,

    Yes, you can connect an FPGA to the GPMC interface and access it as external RAM. The possible types of connections are shown in section 15.4.2.1 of the AM572X TRM Rev. E. The speed would depend on what type of access you will use - synchronous or asynchronous. GPMC timings are given in section 7.10 of the AM572X Datasheet Rev. P. You should note that the external GPMC clock is not free-running, it's activated only during GPMC synchronous accesses and cannot be used as an FPGA master clock.