how to write into ram

[deepa]

can anyone tell me how to write data sequentially into ram,without using the $readmemb command(since it cannot be synthesised) in verilog...i want to know how to read data from a rom and write it into a ram..can anyone suggest a synthesizable way to achieve this

 

[jearome]

you should understand the ram's clock....

 

[sanjana]

think u have got some xilinx documentation,if so just refer to the xst in software manuals .there it is given how to initialize rams or write into rams

 

[tkbits]

If you are copying to the same addresses, you only need one counter. If you are copying from one address to a different address, you can use two counters, or one counter with an adder.

And then you need a RAM controller (can be state machine) to control the counters and generate the signal timing for RAM writes.

 

[echo47]

deepa, you didn't say which tools you are using. Xilinx ISE 8.1i synthesizes $readmemb and initial. For example: