Unboxing and Setup Cables - Dahlia
Overview
In this first lesson, you will go through the process of unboxing your computer on module and carrier board and assembling the hardware.
A block diagram of the system setup and its connections is presented below for reference.
Prerequisites
| List of required items |
|---|
| Accessory kit: |
| - 12V 30W power supply |
| - USB Type-C to Type-A cable |
| - Ethernet cable |
| USB keyboard and mouse |
| 2x 2.4GHz SMA antennas |
| 2x SMA to MHF4 cables |
| List of recommended items |
|---|
| Verdin Industrial Heatsink |
HDMI display/monitor
Step 1
1.1 Remove the Dahlia Carrier Board and the Verdin System on Module from the blisters.
Note that not all modules come with Wi-Fi/Bluetooth connectivity. Check the datasheet of your module for more information.
1.2 Unpack the SMA antennas and the SMA to MHF4 cables.
1.3 Connect the SMA antennas to the SMA to MHF4 cables as shown in the picture below:
1.4 Connect the antennas to the MHF4 connectors on the module as follows. The MHF4 terminations are tiny and fragile. Because of this, it is strongly recommended not to apply too much pressure when connecting it. Further, be careful not to slip and damage it. Using a tool is also not advised as the risk of damaging the MHF4 connector is higher.
For more information on how to connect antennas, refer to the article Operating Toradex Wi-Fi/BT Capable Modules Using Dual and Single Antenna Configuration.
A Note About MIPI DSI and HDMI on Verdin Computer on Modules
According to the Verdin Family Specification, the MIPI DSI and the HDMI interfaces are exposed on reserved pins. This means that if they are available, they will always be exposed on fixed, predefined pins, on the Verdin SODIMM edge connector.
Note that not all Verdin SoMs are guaranteed to have either interface.
The MIPI DSI is the primary display interface while the HDMI is the secondary display interface. Therefore, in this Quickstart Guide, we use HDMI through the DSI to HDMI adapter when MIPI DSI is available, even if native HDMI is present as well.
Step 3 (Optional)
Screw the Verdin Industrial Heatsink on top of the SoM, using the screws that come with it:
Step 4
4.1 Plug an HDMI display into the DSI to HDMI adapter.
4.2 Plug a USB keyboard/mouse into the Dahlia's X4 connector.
4.3 Plug the Ethernet cable into the Dahlia's X11 connector.
Ethernet network must provide DHCP and Internet to the module.
4.4 Plug a USB Type-C to Type-A cable into X3 if you want to enter Recovery Mode and load the Toradex Easy Installer.
4.5 Plug the power supply into the Dahlia's barrel jack X9.
Double-check that your power supply is within the rating board limits (7-27V for the X15 connector or 12V for the X17 connector) and that the polarity is not reversed. Also, ensure the power supply's current capacity is sufficient, or the system may shut down unexpectedly. For evaluation purposes, a 12V 2A power supply is recommended.