I'm kind of late to the post here but I remember Tom King doing some work maybe for a cape years ago, So, I did a quick search, and found this post. Maybe some useful information for you ? https://groups.google.com/forum/#!category-topic/beagleboard/gpmc/QENqyIYTlO0
On Fri, Jun 30, 2017 at 9:47 PM, sajeevan k <[email protected]> wrote: > Hi Gerald and Jason, > > Thank You for the reply. > I got doubt because GPMC_AX lines were utilized for some other purposes. > So first I thought that BBB is not designed to have external parallel > interface. But later I found that GPMC_AD0-AD16 are freely available and > with ALE signal, Data and Address bus can be multiplexed. > > > > > Also I think, even though AD0-AD7 lines are connected to MMC1, since > Address, Data lines may be connected to many devices, and one particular > device will be selected only when its CS signal is active, there won't be > any issues. > > > > Thank You very much. > > > Thanks & Regards, > Sajeevan.K > > > On Friday, June 30, 2017 at 5:56:23 PM UTC+5:30, Jason Kridner wrote: >> >> There is a peripheral called the GPMC -- general purpose memory >> controller -- which is pretty good at SRAM-style interfaces. >> >> On Jun 30, 2017, at 7:46 AM, Gerald Coley <[email protected]> wrote: >> >> It is feasible. >> >> >> >> Gerald >> >> >> >> *From:* [email protected] [mailto:[email protected]] *On >> Behalf Of *sajeevan k >> *Sent:* Thursday, June 29, 2017 11:48 PM >> *To:* BeagleBoard <[email protected]> >> *Subject:* [beagleboard] Re: DPRAM interface with BBB >> >> >> >> Hi all, >> >> Any comments about the feasibility of DPRAM interface with BeagleBone >> Black will be highly appreciated? Please... >> >> >> Thanks & Regards, >> Sajeevan.K >> >> On Tuesday, June 27, 2017 at 1:59:51 PM UTC+5:30, sajeevan k wrote: >> >> Hi all, >> >> >> >> Is it possible to interface an Asynchronous DPRAM (with 16 address lines >> and 16 data lines) with BBB? >> >> >> >> Is there any block diagram (circuit diagram), which shows the >> connections, available? >> >> >> >> Can we use GPMC_ADO-GPMC-AD15 pins as Address and Data mux pins with >> GPMC_ADVN_ALE? >> >> >> >> Also I think GPMC_Ax pins are not required, since we can use Address-Data >> multiplexing with ALE signal. >> >> >> >> I think all the required pins are coming out in P8 connector. >> >> 1) GPMC_ADO-GPMC-AD15 >> >> 2) GPMC_ADVN_ALE >> >> 3) GPMC_WEN >> >> 4) GPMC_OEN_REN >> >> 5) GPMC_BE1N >> >> 6) GPMC_CSN0 >> >> >> >> But GMC_AD0-GPMC-AD7 are also connected to MMC1_D0 to MMC1_D7. Will this >> cause any problem to the functoining of DPRAM? Or will the DPRAM >> functioning cause any problem to MMC1. >> >> >> >> Have anybody interfaced DPRAM with BBB? Please share your experience. >> >> >> >> Thanks and Regards, >> >> Sajeevan.K >> >> -- >> 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]. >> To view this discussion on the web visit https://groups.google.com/d/ms >> gid/beagleboard/d01d7261-4cad-49b1-965f-4bc3a0e847c7%40googlegroups.com >> <https://groups.google.com/d/msgid/beagleboard/d01d7261-4cad-49b1-965f-4bc3a0e847c7%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> For more options, visit https://groups.google.com/d/optout. >> >> -- >> 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]. >> To view this discussion on the web visit https://groups.google.com/d/ms >> gid/beagleboard/4bb8d3999eb34e8d8fff57fd094f9a3b% >> 40winhexbeus11.winus.mail >> <https://groups.google.com/d/msgid/beagleboard/4bb8d3999eb34e8d8fff57fd094f9a3b%40winhexbeus11.winus.mail?utm_medium=email&utm_source=footer> >> . >> For more options, visit https://groups.google.com/d/optout. >> >> -- > 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]. > To view this discussion on the web visit https://groups.google.com/d/ > msgid/beagleboard/3dea8e8f-98c6-492e-ac15-df96fe45b56a%40googlegroups.com > <https://groups.google.com/d/msgid/beagleboard/3dea8e8f-98c6-492e-ac15-df96fe45b56a%40googlegroups.com?utm_medium=email&utm_source=footer> > . > For more options, visit https://groups.google.com/d/optout. > -- 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]. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/CALHSORoJJrBZPkXpZNDLntZuJXNg2wija8HAdrryNFFn44Uemg%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
