This board is ideal for developing purpose. It provide a lot of interfaces and has a flexible jumper area. It is also equipped with an extension connector which allows to connect your own Hardware.
The schematics of this board are freely available, so it is also perfect for a reference design.
Additional to the Evaluation with a Colibri, you need:
Please visit the Evaluation Board product page for details about this product.
The following chapters are for the Evaluation Board V2.1 only. They can also be applied on the Evaluation Board V3.1 but the connector names don't fit.
You first have to choose a free GPIO and wire up the connection from the GPIO to the connector X22 on the EvalBoard. You should remove the jumper, that the alternative function on the hardware is disconnected. A software example how to write to a GPIO can be found in SourceCode examples.
The default configuration for the Colibri modules is a 24 BPP Framebuffer and 18 display lines (18LDD). See the Colibri Tweak Tool for more information.
In case that you like to test the mode with 16 BPP and 16LDD with the VGA output you need to make to following changes.
This instructions are for a Evaluation Board with Version 2.1 If you have an older Evaluation Board rename X7 with X6, X9 with X8 and X12 with X17 X7 Pin 10 to X9 Pin 30 X7 Pin 11 to X9 Pin 19 X7 Pin 12 to X9 Pin 26 X7 Pin 13 to GND X7 Pin 14 to X9 Pin 12 X7 Pin 17 to X9 Pin 18 X7 Pin 18 to X9 Pin 24 X7 Pin 19 to X9 Pin 10 X7 Pin 20 to X9 Pin 14 X7 Pin 21 to X9 Pin 13 X7 Pin 24 to X9 Pin 27 X7 Pin 25 to X9 Pin 28 X7 Pin 26 to X9 Pin 11 X7 Pin 27 to GND X7 Pin 28 to X9 Pin 17 X7 Pin 30 to X9 Pin 25 X12 Pin 21 to X9 Pin 21 X12 Pin 24 to X9 Pin 20
You have also to remove all affected jumpers.
If you choose the 16BPP with 16 signals lines, you need to reconnect the VGA signals which are configured for 18 signal lines. In 16bit mode the color format is in 5 B: 6 G: 5R. (See also Framebuffer.) That means you have to this connection: LDD[0:4] with B[3:7] LDD[5:10] with G[2:7] LDD[11:15] with R[3:7]