# Set up the development environment
Perform the following steps to set up the development environment for the QCC730M EVK and Zephyr on a Windows or Linux computer:
1. Install the Zephyr development environment.
2. Download the source code from CodeLinaro to your development computer by using `west` or `repo`.
3. Install the required toolchains and dependencies for the QCC730M development environment.
4. Set up the environment to use CH347 or J-Link for flashing images.
## Set up a Zephyr development environment
Follow this procedure to set up a Zephyr development environment for the QCC730 EVK on a Windows or Linux computer:
1. Follow Zephyr [Getting Started Guide](https://docs.zephyrproject.org/latest/develop/getting_started/index.html) and complete the instructions in the following sections:
1. **Select and update OS**.
2. **Install dependencies**.
3. **Get Zephyr and install Python dependencies**. In this section, skip the **Get the Zephyr source code** step. Instead, follow the instructions in Download the source code from CodeLinaro, because the QCC730M EVK requires the source code contained in QCC730.ZE.1.0.
Skip the **Install the Zephyr SDK** section. Instead, use the method mentioned in the next step.
2. To install the Zephyr SDK, run the following command in the terminal:
west sdk install --version 0.17.4
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The version number `0.17.4` in the command is for illustration only. See the QCC730.ZE.1.0 Release Notes to determine the required Zephyr SDK version.
If you receive the `No module named 'tqdm'` error message, run the following command to install `tqdm` and then try again:
pip install tqdm
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After you install the Zephyr SDK, configure the system environment variable and add a `ZEPHYR_SDK_INSTALL_DIR` variable and set its value to the path of the Zephyr SDK directory. For instructions about how to add a system environment variable, see Configure system environment variables.
## Download the source code from CodeLinaro
You can download the source code from CodeLinaro in two ways:
- Use the `west` tool
This is the recommended method because it doesn’t require you to manually download additional binaries. You can:
>
>
> - Download a branch to get the latest source code (recommended).
> - Download a specific version.
- Use the `repo` tool for a specific version
This method requires you to manually download the `repo` tool and additional binaries.
For details about how to use the `west` and `repo` tools to download the source code from CodeLinaro, see the following sections.
## Use `west` to download the source code
Follow these steps to download the source code from CodeLinaro by using the `west` tool:
1. Create a workspace folder on your Windows or Linux computer.
2. Activate a Zephyr environment in the workspace folder.
For instructions about activating or deactivating a Zephyr environment, see the Zephyr [Getting Started Guide](https://docs.zephyrproject.org/latest/develop/getting_started/index.html).
3. Initialize the Zephyr workspace and configure the manifest information by using one of the following methods:
- (Recommended) To download a branch and get the latest source code, run the following command:
west init -m https://git.codelinaro.org/clo/le/qzephyr/upstream/qcc730 --mr qcc730.qzephyr.1.0.r1-rel --mf manifests/west_qcc730_clo_rel.yml
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- To download a specific version, run the following command:
west init -m https://git.codelinaro.org/clo/le/qzephyr/upstream/qcc730 --mr IOT.ZE.1.0.r1-00900-QCC730.0 --mf manifests/west_qcc730_clo_r2.1.yml
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The manifest revision and manifest file in the command are examples. For the latest manifest file, see the QCC730.ZE.1.0 Release Notes.
4. Fetch the source code:
west update
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5. Fetch the binary:
west blobs fetch
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## Use `repo` to download the source code
### Install the `repo` tool
On Linux, run the following commands to install the `repo` tool:
sudo apt update
sudo apt install repo
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On Windows, follow these steps to install the `repo` tool:
1. Create a directory for the tool. For example: `C:\tools\bin\`.
2. Download the `repo.py` file to the `C:\tools\bin\` directory from the following address:
[https://storage.googleapis.com/git-repo-downloads/repo](https://storage.googleapis.com/git-repo-downloads/repo)
3. Create a `repo.cmd` file with the following content and save it in the `C:\tools\bin\` directory.
@call python %~dp0\repo.py %*
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Note
This `repo.cmd` file requires Python 3.
4. Add the `C:\tools\bin\` directory to the `PATH` environment variable.
You can now use `repo.cmd` in Windows Command Prompt to run the `repo` tool.
### Download the source code
After you installed the `repo` tool, follow these steps to download the source code:
1. Create a workspace folder on your Windows or Linux computer.
2. On Windows, open Command Prompt as administrator. On Linux, open a terminal.
3. Go to the workspace folder and run the following command to initialize the `repo` client and configure the manifest information:
repo init --depth=1 --current-branch -u https://git.codelinaro.org/clo/le/le/product/manifest.git -b release -m AU_LINUX_EMBEDDED_IOT.ZE.1.0.R1_TARGET_ALL.01.321.003.xml --repo-url=https://git.codelinaro.org/clo/tools/repo.git --repo-branch=aosp-new/stable
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On Windows, replace `repo` with `repo.cmd`.
The manifest revision and manifest file in the command are examples. For the latest manifest file, see the QCC730.ZE.1.0 Release Notes.
4. Download the source code:
repo sync -c --no-tags -j8
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5. Activate the Zephyr environment in the workspace folder.
For instructions about activating or deactivating a Zephyr environment, see the Zephyr [Getting Started Guide](https://docs.zephyrproject.org/latest/develop/getting_started/index.html).
6. Initialize a local manifest repository:
west init -l qcc730
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7. Go to the zephyr directory:
cd zephyr
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8. Create and switch to a new branch:
git checkout -b manifest-rev
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9. Deactivate the Zephyr environment.
### Download the binaries
Download the binaries listed in the following table.
Table: Prebuilt binaries
| File name | Description |
| --- | --- |
| libwifiqcc730.a | Prebuilt Wi-Fi library |
| libpowerqcc730.a | Prebuilt power library |
| libsensorqcc730.a | Prebuilt sensor library |
| libcryptoqcc730.a | Prebuilt crypto library |
| regdb.bin | Wi-Fi regulatory database |
For details about how to download these prebuilt binaries, see the QCC730.ZE.1.0 Release Notes.
Copy all the binaries listed in the table to the `modules\hal\qcom\zephyr\blobs` directory.
## Set up the image flashing environment
You can flash images to the QCC730M EVK by using either:
- The onboard CH347 interface (through USB-C)
- An external J-Link device (through JTAG)
Currently, flashing a Zephyr image to the QCC730M EVK is supported only on Windows.
If you use CH347, follow these steps to install the CH347 Windows driver and OpenOCD:
**Install the CH347 Windows driver**
1. Download the `CH341PAR.EXE` file from [WCH Downloads](https://www.wch-ic.com/downloads/CH341PAR_EXE.html).
2. Run the `CH341PAR.EXE` file to install the CH347 Windows driver.
**Install OpenOCD**
1. Download the `OpenOCD_CH347.zip` file from the following address: [https://github.com/WCHSoftGroup/ch347/releases/tag/CH347_OpenOCD_Release](https://github.com/WCHSoftGroup/ch347/releases/tag/CH347_OpenOCD_Release).
2. Extract the ZIP file to a local folder.
3. Add an `OPENOCD_PATH` system environment variable and set its value to the directory path of `openocd.exe`.
For instructions about how to add a system environment variable, see Configure system environment variables.
If you use J-Link, follow these steps to install the J-Link tool and the Windows embeddable package for Python 3.10.9.
**Install the J-Link tool**
1. Download the J-Link tool from [SEGGER Downloads](https://www.segger.com/downloads/jlink).
2. Install the J-Link tool and then set the `JLINK_PATH` system environment variable to the directory path of `JLinkGDBServer.exe`.
**Install the Windows embeddable package of Python 3.10.9**
1. Download the Windows embeddable package of Python 3.10.9 from [Python Downloads](https://www.python.org/downloads/windows/?Windows%20embeddable%20package) and then unzip the package to a local directory.
2. Add the directory path of `python310.dll` to the `Path` system environment variable.
For instructions about how to update the `Path` system variable, see Configure system environment variables.
### Configure the flash interface
The following figure shows the pins that control the use of CH347 or J-Link.
**Figure: Configure CH347/J-Link**
If you use CH347, connect all the highlighted jumper pins as shown in Figure: Configure CH347/J-Link.
If you use J-Link, disconnect all the highlighted jumper pins as shown in Figure: Configure CH347/J-Link.
The following figure shows the location and pin definitions of the JTAG connector.
**Figure: JTAG connector**
Last Published: Apr 13, 2026
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