> > > 115200 bps is ~ 14 k/s. At that speed, a full 256Mb ram dump would > > > take approximately 5.2 hours.
> http://en.wikipedia.org/wiki/UART > lists speeds up to 2764800 bps. If we can use 2764800 > bps that drops the time for 256 MiB to a tad less than > 13 minutes. Does this require a magic UART? We'd > definitely want one with a large FIFO. I assume we'd > want a short, good quality cable. I don't know whether this is of any help, but there are RS232 cards here that claim speeds of up to 4Mbps (the S514x models): http://www.sangoma.com/main/products/hardware/cards http://www.sangoma.com/datasheets/p_s5141-specs They have open source drivers in the Linux kernel (from kernel 1.0 apparently!). Perhaps the UARTs used in these could be useful? Having said that, these cards appear to use several chips - the S5141 board looks like it has two RAM chips in the top right corner, a large chip to the right of the PCI bridge(?) in the middle, and I assume the two other large chips above the bridge are the UARTs. Cheers! -Taiyo Send instant messages to your online friends http://uk.messenger.yahoo.com _______________________________________________ Open-graphics mailing list [email protected] http://lists.duskglow.com/mailman/listinfo/open-graphics List service provided by Duskglow Consulting, LLC (www.duskglow.com)
