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direct VGA control from processor

Greetings, I am planning to do a project on microcontrollers.I want to show images , text in different kinds of fonts and some live data everything on a CRT Monitor from a microcontroller.I am thinking of storing the images in a RAM/ROM and generate the CRT signals from the microcontroller and get some text from a keyboard and a live data from a serial port of micro.I think the processing of data wont be a problem but is it possible to drive the CRT directly by the microcontroller? Thank you all .

Reply to
wills.kingspanama
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This is one solution - offload the hard work onto another chip :

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Reply to
Mike Harrison

Hi Mike, Thanks for your reply.Is it very difficult to control the display by microcontroller?Has anyone ever done such a project?Any information will be helpful. Thanks

Reply to
wills.kingspanama

a écrit dans le message de news: snipped-for-privacy@m7g2000cwm.googlegroups.com...

Yes, this is possible, we've done it in the past, see Pic'Spectrum :

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Friendly, Robert Lacoste

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Reply to
Robert Lacoste

This guy has done it

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Reply to
Russ_Verdon

It is possible, but don't expect much resolution. Here is an example with a 12MHz PIC, driving a TV almost directly:

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For a computer monitor this gets harder, because of higher pixel clocks.

Kind regards,

Iwo

Reply to
Iwo Mergler

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