low cost CRT controller for ARM9

Does your part have PCI on it? If not, Epson is the easier choice.

Hi,

no, this board have no PCI, actually both CRT controllers above are over featured for what we intend to build and the graphics will be extremly slow I guess, something like 640x480 4 bit color will be enough for our application as our bus is 66Mhz x 32 bit - Cirrus EP9301, but all chips with these specs I see are either obsolete either discontinued products :)

Tsvetan

If you don't have a PCI bridge already, then forget about the C&T part. Anyway, it's a VERY old part based on ancient technology, it's all 5V and hot and nasty. The Epson parts have the complementary pleasure of being expensive and poorly documented.

For low resolution stuff I'd look seriously at the possibility of using an ARM7 SoC as a slave for display control, e.g. Sharp LH79520 (or, if you like Cirrus Logic, maybe EP7312, but the resolution is very limited). Run the part in TFT mode and use a DAC or even just R-2R ladder to turn the LCD color data into an analog voltage.

For such low resolutions (640x480x4), you can probably do it in an FPGA driving some Rs. Alternatively, some high end ARMs have build-in CRT or LCD controllers. It might be cheaper than having two separate chips.

Just open the cheapest PDA and you will see what you need - Samsung S3C2410.

Hi Tsvetan, there may be some ideas that interest you at:

Don...