emWin example - XY Graph demonstration.

This example project uses the emWin library.

TFT driver is controlled in so called "Memory Map"
configuration, where internal RAM of TFT controller 
is used. There is additional frame buffer needed so 
this example could be run in small RAM footprint 
systems. The code fits 128kB flash and uses less 
than 32kB RAM.

In idle mode (where no user interaction is required)
EM2 mode is enabled, allowing reducing power consumption
down to 20uA.

Control using touch panel or joystick.
On application startup there is possibility to
perform touch panel calibration.

Board:  Silicon Labs EFM32G-DK3550 Development Kit
Device: EFM32G890F128
