From: spiglia2 <sp...@ny...> - 2010-02-12 14:15:12
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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 > > -- View this message in context: http://old.nabble.com/Overo-GPIO-%28MMC3_CP-and-MMC3_WP%29--tp21777675p27564172.html Sent from the Gumstix mailing list archive at Nabble.com. |