---
title: CM5 Carrier Review
created_date: 2025-06-03
updated_date: 2025-06-03
aliases:
tags:
---
# CM5 Carrier Review

## To Check

### Schematics

### Layout
- [ ] Keep a no pour zone around wifi antenna

## Features to Investigate
- [ ] Ethernet [IEEE 1588-2008 Standard](https://standards.ieee.org/ieee/1588/4355/): Clock synchronization (SYNC_OUT)

## Into User Manual
- [ ] *WL_nDisable* and *BT_nDisable* pins and its use (location and how to use it)
- [ ] Ethernet cable setup: custom cable assembly?
- [ ] Every single Testpoint: explain net and functionality
- [ ] Every single connector: pinout, software config (maybe even test snippet).
- [ ] Linux configuration: config.txt, devicetree, etc
- [ ] list of peripherals with datasheets and communication interface specification (similar to [this doc](https://docs.google.com/document/d/1ZTmXp4UK0TV9zCx-kx9ZxIh7njEvpL6y2RrtNq1XQ7M/edit?tab=t.0#heading=h.frbdjv5iki3y))