8-bit MicrocontrollersのトピックRe: MCU with display driver

MCU with display driver

hasaur — Thu, 06 May 2010 22:14:21 GMT

Hello.

I have a display like this one (http://www.lextronic.fr/P1614-afficheur-tactile-couleur-320-x-240-dpp-ctp3224.html) and I would like to know if there is a 8bits MCU with a driver to control it.

Thank you in advance.

Re: MCU with display driver

bigmac — Thu, 06 May 2010 23:27:48 GMT

Hello,

It would appear that the display device has several interface options available, including serial port (SCI), IIC (often known as I2C), and SPI (slave?). Most Freescale MCUs incorporate the hardware for one or more of these communication methods. Many devices will incorporate all three peripheral modules. SPI is likely to provide the fastest communications.

A further USB option for the display is really intended for PC usage, rather than for a MCU application.

Regards,

Mac

Re: MCU with display driver

hasaur — Fri, 07 May 2010 14:34:28 GMT

Thank you very much.

I have a 16bit MCU (MC9S12XEP100) that already has much work to do and I would like to know if I can drive the display with it or if it will become slow (and I'd rather use a 8bit MCU in addition, specially for the display). And if it's better to use a 8bit, which one would be a good choice (because there is too many 8-bits that incorporate SPI module) ?

Thank you for your help.

Re: MCU with display driver

bigmac — Sat, 08 May 2010 20:02:07 GMT

Hello,

Since the display device you have chosen appears to have been designed to simplify the interface between the display and a MCU, I would doubt the neccessity for an additional intervening processor. You would still require a communications interface between the 12XEP100 and the display processor, so nothing to gain here.

So it will depend on the amount of data to be sent to the display processor, versus the amount of data required by the display itself. There would need to be a massive disparity to justify an additional processor. Maybe if your application required high resolution graphics with rapid animation.

Regards,

Mac