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description: Programming with low cost opensource tools
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# PyOCD and MCU-Link

NXP recommends using the commercially supported tools and programmers for S32K3 automotive processors as noted on the [nxp.com product webpages.](https://www.nxp.com/design/software/development-software/mcuxpresso-software-and-tools-/mcu-link-debug-probe:MCU-LINK)\


## Opensource tools

In order to make the MR-CANHUBK344 more accessible, several opensource tools have been enabled. Do not expect the same level of performance as commercial tools. The opensource and low cost hardware programmer/debugger [_MCU-link_ ](https://www.nxp.com/design/software/development-software/mcuxpresso-software-and-tools-/mcu-link-debug-probe:MCU-LINK)is able to run the software _PyOCD_ software. This combination has been made to work with S32K344. This is a very low cost DIY option for hobbyists and students. Please be sure to read the documentation well in order to be successful. Support will generally not be available on NXP community when using these tools.

{% hint style="warning" %}
These tools are considered unsupported by NXP engineers for use with S32K344 processors.
{% endhint %}

## Py-OCD

Basic support for the S32K344 has been included in PyOCD.&#x20;

[Following pages provide additional detail on using PyOCD and MCU-LINK-MR together.](../programming-with-zephyr-west#zephyr-west-mcu-link-mr-using-pyocd)\
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Please follow the documentation for this opensource project at the link below:\
[https://github.com/pyocd/pyOCD/tree/v0.36.0](https://github.com/pyocd/pyOCD/tree/v0.36.0)&#x20;

{% embed url="https://github.com/pyocd/pyOCD/tree/v0.36.0" %}
