Our interface is 16bits wide. We use DDR3L. We have no termination resistors.Maximum memory is 2GB. There are no external pins for the DDR. You would need to redesign the schematic and PCB.
Not sure how trivial this is, but it in my mind would be a waste of time and expensive.,. Gerald On Fri, Jan 30, 2015 at 9:28 AM, <[email protected]> wrote: > I am not looking to expand the BBB's internal RAM nor use external RAM for > any operational functions, and I realize what I am asking is not trivial. > > But, I want to ask before I start down a path that is going to be a > nightmare. Is it practical to build an external interface to a standard > DDR3 SODIMM for memory testing purposes? I won't need to operate at full > speed, either, just perform read/write cycles to verify memory integrity > after certain environmental tests. For this purpose we will likely need to > use a fresh tester for each DIMM we want to test (probably dozens), so the > tester should be inexpensive. I was hoping that something like the BBB > might be a novel way to solve this problem rather than some of the existing > ($1000's each) memory tester or FPGA eval boards. > > Is the answer as simple as "The AM335 DDR controller is hardwired to the > onboard RAM and cannot be reconfigured to address external RAM in any way"? > > -- > For more options, visit http://beagleboard.org/discuss > --- > You received this message because you are subscribed to the Google Groups > "BeagleBoard" 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. > -- Gerald [email protected] http://beagleboard.org/ http://circuitco.com/support/ -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" 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.
