Does anyone know of an MBED library for the Himax HX8257-A LCD driver?

20 Jul 2013

Does anyone know of an MBED library for the Himax HX8257-A LCD driver?

20 Jul 2013

Hello Brian, this driver need a external TFT controller. The SPI port is only for setting parameters , contrast . The pixel data has to be send over the databus 3 * 8 bit or 24 bit with sync signals. You will not have enough ram to hold the screen buffer inside a mbed. The NXP1788 is a processor with a TFT controller, but you need a external SD Ram for the frame buffer.

Have a look for a TFT with build in controller like the HX8347D or ILI9341.

Regards, Peter

21 Jul 2013

Thank you especially for the leads on the other controllers.

21 Jul 2013

If found this MBED project: http://mbed.org/users/dreschpe/notebook/qvga-tft-with-hx8347d-controller/

That uses the TFT Proto Board from MicroElectronica. The screen size is just slightly smaller than ideal, but I can make it work.

Are there other MBED LCD projects with similar characteristics that I should also consider? Have others had experience with similar MBED libraries? I'd love to find something off-the-shelf.

I'm looking for roughly:

320-480ish in the X-axis and 240-272ish in the vertical in a 2.8"-3.5" screen. I need either a capacitive or resistive touch, but the ideal controller would provide either (via separate model numbers, obviously) with the same MBED interface.

21 Jul 2013

Current MicroElectronika boards come with ILI9341 controller , as Peter Drescher has advised us There are also some chinese screens that come with ILI9320 ( spi or parallel ) have a look at this.. http://mbed.org/users/frankvnk/notebook/lpc1768-mini-dk/ Have a look at the LCD section at cookbook as well for various QVGA lcd + touchscreen

Regards

Christos