[AXI EMC make connection external and assign pins.]

Hi Artur,

More than to be sure I want to be able to assign the needed SRAM signals to my design, I am not using any PMOD particular hardware, just breadboarding my own SRAM memory. So I want to asssign the control, data and address signals. 

By the way, how do you access the generated hdl wrapper file in Vivado as you have shown?

Thanks,

 

[AXI EMC make connection external and assign pins.]

Hi,

I am having a basic MIcoroblaze design on Arty-S7 board from digilent, I want to add the AXI EMC to read from an external SRAM, I have made the output port for this IP block external by right click on it, getting this

I have added from digilent github page the .xdc file for this board (Arty-S7-50-Master.xdc).

At this point I know I have to assign signals from EMC IP block to physical pins, but I am not sure the recommended way to do this. 

I understand the EMC_INTF_0 is a bus containing all the signals that my configured memory controller need, so not all signal will be used for a given memory, then how can I define where the signals for my simple sram memory need to be defined. 

For my sram I need data bus, address bus, chip enable, output enable and write enable similar to the SRAM example of the PG100 guide () for the IP.

Is that possible or do I need to use individual ports from the EMC IP block?

the external interface property shows

let's say I want to assign the data bus, should I uses something like sram_mem_dq[15:0] on my new xdc file ?

The other question is that it seems the tools have default assignments for this signals on my Digilent Arty-S7 board, so I presume defining those in .xdc file will override those? Please correct me here if wrong.

Will appreciate comments. Thanks in advance,