topic Re: Monochrome Graphic Support in Kinetis Microcontrollers

Monochrome Graphic Support

mcgeeph — Thu, 06 Sep 2012 00:07:30 GMT

Rumor has it that the FlexBus on the K60_100 and K20_100 are capable of supporting HQVGA (240x160) passive monochrone graphic displays. Is this correct? If so, where can I find the documentation.

I can find no information to support this rumor in the documentation provided by Freescale.

For some background, we are looking at using the MQX with eGUI and have the tower development kits for the MK60DN512. Thanks.

Re: Monochrome Graphic Support

iafg — Thu, 06 Sep 2012 00:28:29 GMT

Just curious, but why not use the K70? Are you finding the cost differential that significant?

Re: Monochrome Graphic Support

iafg — Thu, 06 Sep 2012 00:32:00 GMT

or consider something like this cool pixelmemory low power LCD

http://www.sharpmemorylcd.com/2-7-inch-memory-lcd.html

It just uses a serial interface....

Re: Monochrome Graphic Support

mcgeeph — Thu, 06 Sep 2012 02:19:48 GMT

The design is an industrial sector, cost sensitive design. We are planning to migrate to the K20 from the K60 development (footprint compatible), which would put us at a cost about half of what the K70 lists.

Thank you for the Sharp display, I'll have to have a closer look at it. Aside from concerns regarding Sharp as a company, the pricing seems a bit high for low quantities so I'll have to see what it comes back when quoted.

EDIT: Found pricing breakdown for it and it is multiple times higher in cost than what we are targetting with the desired display. Thanks.

Re: Monochrome Graphic Support

iafg — Thu, 06 Sep 2012 02:57:33 GMT

Understood - the Sharp pixel memory displays are targeted at very low power operations and command a bit of a premium.

Maybe something simple but with a controller built in would be much less work than trying to get the flexbus to refresh an LCD (LCD without a controller)..

These both use an SPI (or SPI like) interface and have built in controllers.

------

American Zettler:

http://www.azdisplays.com/PDF/aqm2412e.pdf

Tianma:

http://www.tianma-usa.com/web/uploads/spec/1201154245_TM320160CCCWGWC%20SPEC%20_VER1.0_.pdf

Re: Monochrome Graphic Support

mcgeeph — Thu, 06 Sep 2012 04:44:05 GMT

iafg, I do appreciate the display options you've provided and I've got requests out for quotes at this point. Unfortunately, none of this answers my question, how does the K60/K20 support the parallel monochrome graphic LCD interface?

Here is the meat of my original post.
Rumor has it that the FlexBus on the K60_100 and K20_100 are capable of supporting HQVGA (240x160) passive monochrone graphic displays. Is this correct? If so, where can I find the documentation.

Re: Monochrome Graphic Support

iafg — Fri, 14 Jun 2013 15:07:07 GMT

This is the only app note i'm aware of that talks about a K60 and LCDs.

http://cache.freescale.com/files/microcontrollers/doc/app_note/AN4393.pdf

But it doesn't drive the LCD directly - it uses a Solomon Systech TFT controller.

The K70 will be less expensive than this approach.