DevelBoard EVA01 is an evaluation board tailored around DevelBoard, providing easy and fast access to a set of commonly used peripherals, such as USB, Ethernet, WiFi etc.
The goal of EVA01 is to speed up prototyping and development for DevelBoard, allowing the user to seamlessly port an application developed on EVA01 to a proprietary DevelBoard-based board.
EVA01 is an open-hardware project. This means that all documents and schematics are available online. The documentation is periodically updated to fix erratas and when a new hardware revision is released.
The project is hosted on Github and is available here.
If you are interested in the latest stable releases, visit this page. Each release contains the most up-to-date version of the datasheet, schematics, designs and other various documents.
Powering up EVA01
EVA01 provides two ways to power up DevelBoard for use:
- using an external power supply, connected to the board's power jack;
- via the USB mini-A connector provided on EVA01.
In the first revision of the board, when using an external supply, the voltage provided through the power connector should be between 5 and 30 volts, using the correct polarity.
When using the USB connector, the power is drawn directly from the connected device (at most 2.5 watts). This means that by connecting EVA01 to a host PC via the USB connector there is no need for an external power supply.
Booting up EVA01
DevelBoard automatically starts its boot sequence once it has been powered up.
The board supports multiple boot options and sources (Flash, SD/MMC, etc.). EVA01 provides facilities to take advantage of these options.
The easiest way to boot DevelBoard using EVA01 is to use the
to generate a ready-to-use micro-SD card containing the necessary files to boot
the device. The user can then simply insert the card in the micro-SD card slot
and power up EVA01.
Additional options include reading the firware directly from the NAND flash memory available on DevelBoard, or using the TFTP network protocol to retrieve the firmware from a remote location. Note that the latter requires EVA01 to be connected to the local network.