| # SPDX-FileCopyrightText: 2020 Efabless Corporation |
| # |
| # Licensed under the Apache License, Version 2.0 (the "License"); |
| # you may not use this file except in compliance with the License. |
| # You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, software |
| # distributed under the License is distributed on an "AS IS" BASIS, |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| # See the License for the specific language governing permissions and |
| # limitations under the License. |
| # SPDX-License-Identifier: Apache-2.0 |
| |
| # Power nets |
| set ::power_nets $::env(_VDD_NET_NAME) |
| set ::ground_nets $::env(_GND_NET_NAME) |
| |
| set stdcell { |
| name grid |
| core_ring { |
| met5 {width $::env(_WIDTH) spacing $::env(_SPACING) core_offset $::env(_H_OFFSET)} |
| met4 {width $::env(_WIDTH) spacing $::env(_SPACING) core_offset $::env(_V_OFFSET)} |
| } |
| rails { |
| } |
| connect {{met4 met5}} |
| } |
| |
| if { $::env(_WITH_STRAPS) } { |
| dict append stdcell straps { |
| met4 {width $::env(_WIDTH) pitch $::env(_V_PITCH) offset $::env(_V_PDN_OFFSET)} |
| met5 {width $::env(_WIDTH) pitch $::env(_H_PITCH) offset $::env(_H_PDN_OFFSET)} |
| } |
| } |
| |
| pdngen::specify_grid stdcell $stdcell |
| |
| pdngen::specify_grid macro { |
| instance "obs_core_obs" |
| power_pins $::env(_VDD_NET_NAME) |
| ground_pins $::env(_GND_NET_NAME) |
| blockages "li1 met1 met2 met3 met4 met5" |
| straps { |
| } |
| connect {} |
| } |
| |
| |
| pdngen::specify_grid macro { |
| power_pins $::env(_VDD_NET_NAME) |
| ground_pins $::env(_GND_NET_NAME) |
| blockages "li1 met1 met2 met3 met4" |
| straps { |
| } |
| connect {} |
| } |
| |
| set ::halo 10 |
| |
| # POWER or GROUND #Std. cell rails starting with power or ground rails at the bottom of the core area |
| set ::rails_start_with "POWER" ; |
| |
| # POWER or GROUND #Upper metal stripes starting with power or ground rails at the left/bottom of the core area |
| set ::stripes_start_with "POWER" ; |