- Mon Sep 15, 2008 6:34 pm
#55420
Edit: Actually, it might have been around 60% capacity. I can't remember.
mikeselectricstuff wrote:I came to the conclusion that a CPLD plus 16 bit wide parallel SRAM chip is probably going to be the lowest cost general-purpose solution, as low-end CPLDs and SRAM chips are cheap.I did this for my last lcd project that used a ACX705AKM lcd with a 65535 x 16 SRAM. I used a 9572 CPLD and I was at around 80% capacity with my code and I only had 9 data lines. The QVGA lcd having 18 data lines and requiring more address lines for the larger SRAM would probably put the logic over the capacity of a 9572. I could be wrong however, because I'm still very new to vhdl and write sloppy, inefficient code. Anyways, I decided to just go with a cheap FPGA and put in an SPI interface for simplicity for connecting to the MCU.
Edit: Actually, it might have been around 60% capacity. I can't remember.