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uvm_mem access

UVM 5528
RAL 52 mem 1 UVM 141
saraTel
saraTel
Full Access
17 posts
August 26, 2018 at 11:30 am

Hi,

What is the command to get values from the addresses in the memory(in RAL) ,
such as the use of GET in the registers.

Replies

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dave_59
dave_59
Forum Moderator
8459 posts
August 26, 2018 at 1:08 pm

In reply to saraTel:

You must use read() or peek(). uvm_mem gives you the address mapping of uvm_reg, but not the mirroring or prediction.

— Dave Rich, Verification Architect, Siemens EDA

saraTel
saraTel
Full Access
17 posts
August 27, 2018 at 4:18 am

In reply to dave_59:
Thanks,

I created class in regmodel:
class ral_mem_SPI_PT_RAM extends uvm_mem;
function new(string name = "SPI_PT_RAM");
super.new(name, `UVM_REG_ADDR_WIDTH'h80, 24, "RW", build_coverage(UVM_NO_COVERAGE));
endfunction
virtual function void build();
endfunction: build

`uvm_object_utils(ral_mem_SPI_PT_RAM)

endclass : ral_mem_SPI_PT_RAM

How do I read from a specific address?

chr_sue
chr_sue
Full Access
3224 posts
August 27, 2018 at 4:42 am

In reply to saraTel:

You need an UVM environment. For this you can define a sequence which si performing reads or writes If you want to use backdoor access you can use peek and poke instead.

saraTel
saraTel
Full Access
17 posts
August 27, 2018 at 5:16 am

In reply to chr_sue:

I have an UVM environment.
I want to know how to use command read and peek,
where send the address?

chr_sue
chr_sue
Full Access
3224 posts
August 27, 2018 at 8:45 am

In reply to saraTel:

The UVM register layer does not work directly with addresses. It uses names instead.
See the example in the Verification Academy source code examples.

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