> [...] > I've discovered that the SA1110 LCD controller maintains the RGB signal's > last state during the left and right margin periods, same with the upper > and lower margins. I dont know if this behavior is wrong, but this > Mitsubishi monitor certainly does not like it, it start flickering if the > RGB signal is active during the whole H-SYNC period. The only way i've > found to solve this problem is to draw a black border with 1 pixel width > around the screen. > > Is there any known way to change the settings of the SA1110 to prevent > this behavior, making the RGB signals to be inactive during the right, > left, upper and lower margins cycles ?? > > /Benny
No - but you may use the blanking signal (L_BIAS pin, video enable in TFT mode, polarity programmable) to logically AND it with the outputs. Or, if the LCD has analog inputs and you are using a DAC, it may have a dedicated blanking input. BTW, be sure you read the SA1110 Errata (latest is Dec. 2001) - there are a few video related issues, in particular #22 (Improper Operation of LCD Controller LCCR2 Register EFW) is unpleasant. -- Paul Chitescu [EMAIL PROTECTED] http://pchitescu.myip.org/ ICQ:22641673 Any spammers will be painfully squeezed into /dev/null _______________________________________________ http://lists.arm.linux.org.uk/mailman/listinfo/linux-arm http://www.arm.linux.org.uk/armlinux/mailinglists.php Please visit the above addresses for information on this list.
