--- In "Fred" <> wrote:
>
> --- In "gpimentel074" <gpimentel074@> wrote:
>
> > Meanwhile i have analysed the ts-7370 schematic
> > and i noticed that DIO12, DIO13, DIO14, DIO15
> > pins are directly plug on the processor pins,
> > not having any latch between... I will see the
> > pullup resister that you told me.
>
> That's what it sounds more and more is the problem.
>
> > Can you give maybe the link of user manual that
> > you told me and the page?? I didn't find any
> > reference to DPIO pullups on my manual, probabily
> > my is different.
>
> I looked at
>
> focus.tij.co.jp/jp/lit/ug/sprueq8/sprueq8.pdf
>
> And I also did not find anything about the need for
> pull-up resisters. It should be quick and easy to
> jumper in a resister to check if that's the problem,
> though.
>
I have plugged the pullup resister like this:
3.3V
|
4,7K
|
DIO12 PIN>---+----------
| Voltimeter
GND---------
No effect, the signal is allways low.
Meanwhile i have try using the peek and peekpoke programs to change
the data and direction directily on GIO address similiar to my C code
posted before, and i noticed that the data value on register does not
change!!!!!
I have do this steps:
(Setting all pins has outputs by changing the value on PBDDR)
peekpoke 32 0x8084004 0xFF
(Read the value on PBDR)
peek 32 0x8084004
=> The value printed on screen is 0x18
(Write the new value on PBDR, 0xFF to set all 8 pins to high level)
peekpoke 32 0x8084004 0xFF
(Read the value on PBDR)
peek 32 0x8084004
=> The value printed on screen should be 0XFF, but still being 0x18
It seems that could not change the register value for some reason,
what implicates not changing the output... So the problem is not the
pullups resisters for now, but modifing register value. Do have any
ideas????
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