From: "Rasmus Stougaard" <stou.nospam@gmail.com>
To: ecos-discuss@ecos.sourceware.org
Subject: [ECOS] Problem reading buttons on AT91sam7s-ek
Date: Mon, 01 Oct 2007 12:27:00 -0000 [thread overview]
Message-ID: <dbc951020710010527k4a2c5560y8607359108066f47@mail.gmail.com> (raw)
Hi
I am trying to read the state of the buttons on a AT91sam7s-ek
evaluation kit from atmel.
I figure that something like:
cyg_uint32 value;
HAL_ARM_AT91_GPIO_CFG_DIRECTION(AT91_GPIO_PA20, AT91_PIN_IN);
HAL_ARM_AT91_GPIO_CFG_PULLUP(AT91_GPIO_PA20, AT91_PIN_PULLUP_ENABLE);
HAL_ARM_AT91_GPIO_GET(AT91_GPIO_PA20, value);
trace(" AT91_GPIO_PA20 %d\n", value);
Should configure the pin for input and print the current state of the
of the pin.
However, the state returned in value is always zero, so I must be
doing something wrong.
Any hints much apreciated.
Regards
Rasmus Stougaard
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next reply other threads:[~2007-10-01 12:27 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-01 12:27 Rasmus Stougaard [this message]
2007-10-01 14:28 ` Andrew Lunn
2007-10-02 11:40 ` Rasmus Stougaard
2007-10-02 11:47 ` Andrew Lunn
2007-10-02 13:04 ` Rasmus Stougaard
2007-10-02 13:40 ` Andrew Lunn
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