Anyone can help on GPACON/GPADAT issue?
ben-linux at fluff.org
Thu Apr 16 18:03:22 CEST 2009
On Thu, Apr 16, 2009 at 05:43:18PM +0200, Gianluca Renzi wrote:
> Hello list,
> I would like to know if there is something wrong in my setup.
> I have a custom board s3c2442BL based.
> I ported some test points into a strip just to have an "expansion connector".
> Those pins are GPA12..GPA16. On reset they are at 1.8V is it normal?
> If I configure them as OUTPUT in GPACON register and write the corresponding
> bit High its level remains 1.8V not 3.3V. Is it normal? It looks like it has
> some PULLDOWN register enabled, but the GPIO A is the only port that *DOES NOT
> HAVE* such register (from port B to port J they have PD regs...)
> They are wired DIRECTLY from CPU pins to strip pins. No pullup, pulldown or
are you sure these pins are referenced to VDDio, and not VDDmem?
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