Can P0.15 / WAKEUP Pin be used as output?

[dh2]

Posted on January 10, 2006 at 00:41

Can P0.15 / WAKEUP Pin be used as output?

[dh2]

Posted on January 09, 2006 at 11:17

Hi there!

I could not find ANY restrictions in the manuals regarding P0.15 (= WAKEUP) not to be used as an output, but when setting

GPIO_Config(GPIO0, 0x8000, GPIO_OUT_PP);

GPIO0->PD |= 0x8000;

nothing happens. Is there any idea how to use that pin as an output?

I'm rather sure I did not make something wrong as

GPIO_Config(GPIO0, 0x4000, GPIO_OUT_PP);

GPIO0->PD |= 0x4000;

works as expected and sets the P0.14 port to high.

Regards

Herbert Demmel

[hichem2]

Posted on January 09, 2006 at 11:27

Hi,

As the STR71x datasheet (page 22/50 Rev 7.) Table 6. STR711/STR712/STR715 Pin Description

P0.15 is only an input pin (type : I).

Regards,

Hich :D

[dh2]

Posted on January 09, 2006 at 11:31

sh ..., I simply overlooked the entry in the ''Type'' column :(

This pins seems to be the very only I/O which does not work as an output as well, so I have to redesign my board now ...

thanks for the info.

Regards

Herbert

[shangdawei1]

Posted on January 10, 2006 at 00:41

http://mcu.st.com/mcu/modules.php?mop=modload&name=Splatt_Forums&file=viewtopic&topic=3526&forum=17