- 18
- 45 067
Arash Katourani
Canada
Приєднався 21 лип 2020
Cadence and ADS tutorials
Downloading IHP BiCMOS PDK on Ubuntu, Integrating with Xschem [Read Description]
Description:
In this tutorial, I’ll guide you through the process of:
Downloading the open-source IHP BiCMOS 130nm PDK on Ubuntu.
Setting it up in Xschem for circuit design.
Simulating your designs step-by-step.
For CMOSs:
ihp-open-pdk-docs.readthedocs.io/en/latest/analog/xschem.html
### **Step 1: Set Up Environment Variables**
1. **Define `PDK_ROOT`** (replace `/path/to/IHP-Open-PDK` with your PDK directory):
export PDK_ROOT=/path/to/IHP-Open-PDK
2. **Define `PDK`**:
export PDK=ihp-sg13g2
3. **Make Variables Persistent**:
echo 'export PDK_ROOT=/path/to/IHP-Open-PDK' ~/.bashrc
echo 'export PDK=ihp-sg13g2' ~/.bashrc
source ~/.bashrc
---
### **Step 2: Download and Install `openvaf`**
1. **Download the `openvaf` Binary**:
wget datashare.tu-dresden.de/s/deELsiBGyitSS3o/download/openvaf_devel-x86_64-unknown-linux-gnu.tar.gz -O openvaf.tar.gz
2. **Extract the Downloaded File**:
tar -xvzf openvaf.tar.gz
3. **Move `openvaf` Binary to `/usr/local/bin`**:
sudo cp openvaf /usr/local/bin/
4. **Set Execute Permissions**:
sudo chmod +x /usr/local/bin/openvaf
---
### **Step 3: Run the Installation Script**
1. **Navigate to the XSCHEM Folder**:
cd $PDK_ROOT/$PDK/libs.tech/xschem/
2. **Run the Install Script**:
python3 install.py
This script:
- Compiles the `psp103_nqs.va` file.
- Places the `psp103_nqs.osdi` file in `$PDK_ROOT/$PDK/libs.tech/ngspice/openvaf/`.
- Creates a symbolic link to the `.spiceinit` file in your home directory.
---
### **Step 4: Verify the Installation**
1. **Check for the `.osdi` File**:
ls $PDK_ROOT/$PDK/libs.tech/ngspice/openvaf/
Ensure `psp103_nqs.osdi` is present.
2. **Check the Symbolic Link**:
ls -l ~/.spiceinit
It should point to:
$PDK_ROOT/$PDK/libs.tech/ngspice/.spiceinit
---
### **Step 5: Launch XSCHEM**
1. **Run XSCHEM**:
xschem &
2. **Simulate an Example Circuit**:
Open and simulate a circuit using `ngspice`.
---
### **Note on Running `openvaf` Directly**
If `python3 install.py` successfully compiles and installs the `psp103_nqs.osdi` file, **you do not need to manually run**:
openvaf psp103_nqs.va
However, you can verify by checking the presence of `psp103_nqs.osdi` in the appropriate directory.
In this tutorial, I’ll guide you through the process of:
Downloading the open-source IHP BiCMOS 130nm PDK on Ubuntu.
Setting it up in Xschem for circuit design.
Simulating your designs step-by-step.
For CMOSs:
ihp-open-pdk-docs.readthedocs.io/en/latest/analog/xschem.html
### **Step 1: Set Up Environment Variables**
1. **Define `PDK_ROOT`** (replace `/path/to/IHP-Open-PDK` with your PDK directory):
export PDK_ROOT=/path/to/IHP-Open-PDK
2. **Define `PDK`**:
export PDK=ihp-sg13g2
3. **Make Variables Persistent**:
echo 'export PDK_ROOT=/path/to/IHP-Open-PDK' ~/.bashrc
echo 'export PDK=ihp-sg13g2' ~/.bashrc
source ~/.bashrc
---
### **Step 2: Download and Install `openvaf`**
1. **Download the `openvaf` Binary**:
wget datashare.tu-dresden.de/s/deELsiBGyitSS3o/download/openvaf_devel-x86_64-unknown-linux-gnu.tar.gz -O openvaf.tar.gz
2. **Extract the Downloaded File**:
tar -xvzf openvaf.tar.gz
3. **Move `openvaf` Binary to `/usr/local/bin`**:
sudo cp openvaf /usr/local/bin/
4. **Set Execute Permissions**:
sudo chmod +x /usr/local/bin/openvaf
---
### **Step 3: Run the Installation Script**
1. **Navigate to the XSCHEM Folder**:
cd $PDK_ROOT/$PDK/libs.tech/xschem/
2. **Run the Install Script**:
python3 install.py
This script:
- Compiles the `psp103_nqs.va` file.
- Places the `psp103_nqs.osdi` file in `$PDK_ROOT/$PDK/libs.tech/ngspice/openvaf/`.
- Creates a symbolic link to the `.spiceinit` file in your home directory.
---
### **Step 4: Verify the Installation**
1. **Check for the `.osdi` File**:
ls $PDK_ROOT/$PDK/libs.tech/ngspice/openvaf/
Ensure `psp103_nqs.osdi` is present.
2. **Check the Symbolic Link**:
ls -l ~/.spiceinit
It should point to:
$PDK_ROOT/$PDK/libs.tech/ngspice/.spiceinit
---
### **Step 5: Launch XSCHEM**
1. **Run XSCHEM**:
xschem &
2. **Simulate an Example Circuit**:
Open and simulate a circuit using `ngspice`.
---
### **Note on Running `openvaf` Directly**
If `python3 install.py` successfully compiles and installs the `psp103_nqs.osdi` file, **you do not need to manually run**:
openvaf psp103_nqs.va
However, you can verify by checking the presence of `psp103_nqs.osdi` in the appropriate directory.
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Very useful tutorial. Could you please share a bit of designing with such a pdk with us?
Dear Arash, Thank you for this video but for the next videos please prepare a script for yourself. Your dialogue sounded very funny😀 and it was clear that you were uncomfortable. i like the part that you spoke about negative frequency.
#Questions: what architecture did u use in *Instance I0* ? You should show to us Why u used that Resistance+ Cap in parallel in Feedback loop? Explain please Why u used such big 10p Cap as load?Any specific reason? Please explain overall schematic to your viewers instead of uploading in such a messy manner 😢
Did you ever find out what was wrong with the simulation?
Please do your homework before posting a video. It took more than an hour to watch the video and then at the end you are not able to fully simulate the circuit
Thank you so much Sir for your video. It helped me a lot in my MTech 2nd sem project.
what you fucking talking about all the time？？
Dear Arash, thank you for preparing this video. However please double check the videos you've uploaded about their qualities.
Would be a great video if it wasn't for the horrific audio
Sir may I know how you calculate the current to run the oscillator?
sound
Thank you for teaching this method! You brought me a solution in order to continue my thesis
Thank you Arash. It was very helpful. I think it is a such pity that the video has not the quality.
Excellent
Good day, I'm looking to do a post-layout simulation using an extracted spice file that includes parasitics, I am struggling to run a schematic simulation using the netlist, I follow the method used in the video from min @6:30, for some reason "spiceIn.log" gives an error. If possible could you kindly do a video showing post-layout simulation using netlist/extracted view?
I need this video but the quality of this video is bad because only in 480p. Do you have the higher resolution of this video at least 720p?
how to contact you sir
Afarin, Outstanding .
کتابخانه دارید به اشتراک بگذارید tsmc 18
با درود به شما بلند تر صحبت کنید
480p in 2020?!
too simple
How do I get that tsmc18rf
سلام ببخشید شما تکنولوژی cmos 65 nm رو برا ADS دارید بهم بدید ؟
شما 180nm رو داريد بم بديد؟