On Sat, Oct 15, 2011 at 2:11 PM, Dwayne Reid wrote= : > I guess that I just became extremely confused. Sort of like . . . HUH > ?!? > > What does using or not using SIMM SDRAM have to do with parallel > processing? I *think* that those old SIMMs are 16 bits wide (18 bits > if they have parity). > > You could also use the cache RAM from really old computer mother-boards. > > I'm not trying to start a confrontation - I'm genuinely > confused. Can you explain? > > It seems some of my emails are going through and some are not. Not sure what's going on here. I misread his reply (it was late and I was tired). I thought he was telling me to use a computer or CPU or whatever. I misread it. My apologies, misread the reply. Yes, I could use those modules, but they > have LOTS of pins. I'll give it a try though seeing as they're pretty che= ap. > Laptop DDR seems like a good place to start. Anyway, I found that Xilinx's MIG supports (explicitly stated) the Micron SDRAM TSSOP modules. I'll be using those and see how it goes. They're cheap= , fast, and easy to solder. Hope this works out. If I need high throughput, I'll cache the data on the FPGA's block RAM/flip flops/whatever, split the data up into equal sized parts (let's say 4 parts per burst if I need 4x the throughput) and write it simultaneously (in parallel) to 4 modules at the same time. So DRAM module 1 would contain par= t 1 of the data, module 2 would contain part two of the data, etc. But I highly doubt I'll need that since these modules have 5ns delay and are more than fast enough to start with. --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .