diff options
| author | Marti Bolivar <mbolivar@leaflabs.com> | 2012-05-31 18:43:18 -0400 |
|---|---|---|
| committer | Marti Bolivar <mbolivar@leaflabs.com> | 2012-05-31 18:43:18 -0400 |
| commit | 1ed01dad43f95be2af258d44d03fcafde5714942 (patch) | |
| tree | 6a20bc40a5ba404692547f7acb3b82d53c306bed | |
| parent | 014f9a0545556f2e0d4fb3faba5607e59e1e97ad (diff) | |
| download | librambutan-1ed01dad43f95be2af258d44d03fcafde5714942.tar.gz librambutan-1ed01dad43f95be2af258d44d03fcafde5714942.zip | |
<libmaple/gpio.h>: Fix gpio_write_bit().
It's exactly wrong -- val=0 makes the pin high, and val=1 makes it
low.
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
| -rw-r--r-- | libmaple/include/libmaple/gpio.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libmaple/include/libmaple/gpio.h b/libmaple/include/libmaple/gpio.h index f7773c0..ca7b2bf 100644 --- a/libmaple/include/libmaple/gpio.h +++ b/libmaple/include/libmaple/gpio.h @@ -63,7 +63,7 @@ void gpio_set_mode(gpio_dev *dev, uint8 pin, gpio_pin_mode mode); * @param val If true, set the pin. If false, reset the pin. */ static inline void gpio_write_bit(gpio_dev *dev, uint8 pin, uint8 val) { - val = !!val; + val = !val; /* "set" bits are lower than "reset" bits */ dev->regs->BSRR = BIT(pin) << (16 * val); } |