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Fix setting alternate port functions on the STM32F4.

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Thanks to Ricardo Martins.
This commit is contained in:
Gareth McMullin 2012-01-07 16:58:23 +13:00 committed by Piotr Esden-Tempski
parent 7da1967056
commit e11185d47d
1 changed files with 1 additions and 1 deletions
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2
include/libopencm3/stm32/f4/gpio.h
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@ -232,7 +232,7 @@
/* See Datasheet Table 6 (pg. 48) for alternate function mappings. */
#define GPIO_AFR(n, af) (af << ((n) * 4))
#define GPIO_AFR_MASK(n) (0xf << ((n) * 4))
#define GPIO_AFR_MASK(n) ~(0xf << ((n) * 4))
#define GPIO_AF0 0x0
#define GPIO_AF1 0x1
#define GPIO_AF2 0x2