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VLSIDA / OpenRAM

An open-source static random access memory (SRAM) compiler.
http://www.openram.org
BSD 3-Clause "New" or "Revised" License
781 stars 198 forks source link

Not able to use multiple banks #89

Closed jkhan810 closed 3 years ago

jkhan810 commented 3 years ago

I get the attribute error and the script stops there. If I use one bank, it runs smoothly, but I want to create larger memory. Do I have to set the attribute for object manually?

Technology: FreePDK45 Total size: 512 bits Word size: 8 Words: 32 Banks: 2 Write size: None RW ports: 1 R-only ports: 0 W-only ports: 0 Design supply routing skipped. Supplies will have multiple must-connect pins. (route_supplies=True to enable supply routing). DRC/LVS/PEX is only run on the top-level design to save run-time (inline_lvsdrc=True to do inline checking). DRC/LVS/PEX is disabled (check_lvsdrc=True to enable). Characterization is disabled (using analytical delay models) (analytical_delay=False to simulate). Only characterizing nominal corner. Words per row: 1 Traceback (most recent call last): File "/home/jkhan/openram/compiler/openram.py", line 77, in s = sram(sram_config=c, File "/home/jkhan/openram/compiler/sram/sram.py", line 44, in init** self.s.create_netlist() File "/home/jkhan/openram/compiler/sram/sram_base.py", line 96, in create_netlist self.add_modules() File "/home/jkhan/openram/compiler/sram/sram_2bank.py", line 61, in add_modules self.compute_bus_sizes() File "/home/jkhan/openram/compiler/sram/sram_base.py", line 173, in compute_bus_sizes self.num_vertical_line = self.addr_size + self.control_size + log(self.num_banks, 2) + 1 AttributeError: 'sram_2bank' object has no attribute 'control_size'**

mguthaus commented 3 years ago

The multibank options has been temporarily disabled. Until then, your best option is to create a Verilog wrapper to utilize multiple SRAMs.

We will get it added back hopefully this fall.

jkhan810 commented 3 years ago

@mguthaus Thanks a lot for response!

jkhan810 commented 3 years ago

Hello @mguthaus , I have a quick question. Do we have an option for step size in Openram? Like, If I want to go from min bit to max bit, can I go in steps?

mguthaus commented 3 years ago

I don't think the issues is a good place for questions. You can get help either on the mail list or the Slack channel. See the README for information on these.

jkhan810 commented 3 years ago

Okay , Thanks!