From 87ea496ca768d18e51d8654cbad9cb261a881b1b Mon Sep 17 00:00:00 2001 From: Fergus Noble Date: Wed, 21 Mar 2012 20:16:10 -0700 Subject: Revert "Fix setting alternate port functions on the STM32F4." This was also fixed in ac29b654a992a4855626fc0b92874d3847914f85 in a different way. I think the mask definition should be left with 1s indicating the bits of interest. This reverts commit e11185d47d0a2fea6d2782761edd5fd489541512. --- include/libopencm3/stm32/f4/gpio.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/libopencm3/stm32/f4') diff --git a/include/libopencm3/stm32/f4/gpio.h b/include/libopencm3/stm32/f4/gpio.h index 4981c2a..a5b4361 100644 --- a/include/libopencm3/stm32/f4/gpio.h +++ b/include/libopencm3/stm32/f4/gpio.h @@ -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 -- cgit v1.2.3