Hello all, I'm new to this list, so let me give you a short introduction. My name is Dorian and I'm living in Germany and doing occasionally development of hard- and software for professional entertainment systems. This is not my main occupation but a little add-on work during periods of lower workload. At the moment I'm developing a "prototype", maybe a one-off, maybe a very small series later, where I use an Olimex A20-SOM as the core processing board. The baseboard and all the peripherals are done by me and this leads me to my first question which I hope somebody here can answer.
I want to use a LCD panel with a 8080-compatible 16-bit interface. The A20 datasheet claimes that the SoC has a 8080 interface and also there are registers for configuring the LCD port in an 8080 mode. In fact the register at 0x060 bit 31:29 give three 16-bit modes. 16bit mode1, 16bit mode2 and 16bit mode3. Does anybody know what the differences between these modes is? And more important: the pin descriptions for the LCD port (I want to use LCD0 on port D) are only documented for the standard TTL and LVDS interfaces. The 8080 interface uses in 16bit mode only 16 bidirectional data lines and additionally a few control lines. The control lines are: - Data/Command select: to distinguish whether the written byte is display data or to control the display controller itself - Write: to indicate that a byte should be sent to the display controller - Read: to indicate that a byte should be read from the display controller - Chip select: like an enable so you could drive more than one display one one controller - Reset: for resetting the display controller I could handle the chip select and reset data myself, but I need to know where Data/Command, the write and the read pins are located. Unfortunately this information is not given in the datasheet of the A20 or A10. Does anybody have that information or did successfully use a 8080 display or know where I can get that information for the A20? Thank you Dorian Meid -- You received this message because you are subscribed to the Google Groups "linux-sunxi" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
