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https://github.com/mshr-h/pico-microtvm-standalone
A minimum microTVM standalone example for Raspberry Pi Pico
https://github.com/mshr-h/pico-microtvm-standalone
arm cortex-m microcontroller microtvm raspberry-pi-pico rp2040 tvm
Last synced: 3 months ago
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A minimum microTVM standalone example for Raspberry Pi Pico
- Host: GitHub
- URL: https://github.com/mshr-h/pico-microtvm-standalone
- Owner: mshr-h
- License: apache-2.0
- Created: 2021-12-04T06:08:34.000Z (about 3 years ago)
- Default Branch: main
- Last Pushed: 2024-07-31T05:18:10.000Z (6 months ago)
- Last Synced: 2024-10-13T14:00:20.804Z (4 months ago)
- Topics: arm, cortex-m, microcontroller, microtvm, raspberry-pi-pico, rp2040, tvm
- Language: C
- Homepage:
- Size: 228 KB
- Stars: 8
- Watchers: 2
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
# microTVM example project for Raspberry Pi Pico
This is a very basic microTVM example for Raspberry Pi Pico.
- TVM v0.17
- Ubuntu 24.04
- Python 3.12
## Getting Started (Example for Ubuntu 24.04)
Install CMake and cross compiler.
```bash
sudo apt install cmake gcc-arm-none-eabi libnewlib-arm-none-eabi
```
Clone the repository.
```bash
git clone https://github.com/mshr-h/pico-microtvm-standalone
cd pico-microtvm-standalone
```
Create python virtual env and install python dependencies.
```bash
python -m venv .venv
source .venv/bin/activate
pip install -r requirements.txt
```
Build and install TVM from source.
```bash
cd 3rdparty
./build-tvm.sh
cd ..
```
Build model with TVM.
```bash
python build_module.py -m add.onnx
```
Extract tar and generate hexdumps.
```
tar xvf model_c.tar
xxd -i graph_c.json > graph_c.json.c
xxd -i params_c.bin > params_c.bin.c
```
- `graph_c.json.c`
- Hexdump for computational graph
- `params_c.bin.c`
- Hexdump for the parameter of the graph
- `lib0.c`
- Operator registry
- `lib1.c`
- Compiled operators
Copy the TVM runtime files from 3rdparty/tvm
```bash
./copy-tvm-crt.sh
```
Fix some errors before building the code.
```bash
patch -p1 < diff.patch
```
Configure and build it.
If `PICO_SDK_PATH` environment variable isn't set, cmake will automatically download [pico-sdk](https://github.com/raspberrypi/pico-sdk) to the `build/_dep` directory.
```bash
cmake -S . -B build -G Ninja
cmake --build build
```
Connect the Pico to the Host PC with pressing the BOOTSEL button.
Copy the binary to Raspberry Pi Pico.
```bash
cp microtvm.uf2 /path/to/pico_storage
```
Connect to the Pico with UART.
The default baud rate is 115200.
You can see the inference result.
## Additional resources
- [raspberrypi/pico-examples](https://github.com/raspberrypi/pico-examples)
- [raspberrypi/pico-sdk](https://github.com/raspberrypi/pico-sdk)
- [Raspberry Pi Pico SDK: Raspberry Pi Pico SDK](https://raspberrypi.github.io/pico-sdk-doxygen/)
- [Raspberry Pi Pico C/C++ SDK](https://datasheets.raspberrypi.org/pico/raspberry-pi-pico-c-sdk.pdf)
- [mshr-h/pico-cpp-minimum-example: A minimum C++ example for Raspberry Pi Pico](https://github.com/mshr-h/pico-cpp-minimum-example)