From: Gordon K. <go...@gu...> - 2010-02-12 18:38:09
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Hi, You may have missed this, published about a year ago on www.gumstix.net: PCN2009-3: Change of pin 46 on Overo J4 connector Notice Date: January 2009 Effective Date: January 2009 As of version 2106 of the Overo Earth, pin 46 on connector J4 has been changed to be 4030GP2_N_MMC3_CD. Prior to that version, there had been an error that labeled the pin as GPIO49 when in fact it had been GPIO149. --Gordon > I've also encountered this Gumstix Overo J4 pin naming discrepancy. I > checked both the Earth& Water (OMAP 3503 and 3530, respectively), and > they're consistent relative to the incorrect MMC3_WP identifier. > > In my custom Overo carrier board schematic I'm only assigning those Gumstix > function names (i.e., net names for J1, J4) that will be used in the design, > with a (Mode n) suffix. > > For this pin that you're identifying, I'll just allocate it as > UART1_CTS_(MODE0) ... and punt on use of GPIO_150 altogether. On J4, its > pin grouping makes sense as it's in close proximity to UART1_RX and _TX. > > Steve > NY > > > > Next To Nobody wrote: > >> Connector J4 listed on the gumstix website lists the following: >> >> http://www.gumstix.net/Hardware/view/I/O-connectors-cabling/Gumstix-Overo-70-pin-connector-J4-features-Extended-Memory-Bus-and-MMC-signals/112.html >> >> Pin 46: GPIO49_MMC3_CD >> Pin 47: GPIO150_MMC3_WP >> >> Is this is a mistake? >> >> There is no reference in the TI TRM manual for MMC3_WP and MMC3_CD >> signals. >> >> Plus the GPIO number 49 seems to be out of place. Maybe it is 149? >> >> The TI TRM manual shows: >> >> GPIO149 as UART1_RTS >> GPIO150 as UART1_CTS >> >> Can this be confirmed? >> >> ------------------------------------------------------------------------------ >> This SF.net email is sponsored by: >> SourcForge Community >> SourceForge wants to tell your story. >> http://p.sf.net/sfu/sf-spreadtheword >> _______________________________________________ >> gumstix-users mailing list >> gum...@li... >> https://lists.sourceforge.net/lists/listinfo/gumstix-users >> >> >> > |