diff options
Diffstat (limited to 'libmaple/dac.c')
| -rw-r--r-- | libmaple/dac.c | 28 |
1 files changed, 11 insertions, 17 deletions
diff --git a/libmaple/dac.c b/libmaple/dac.c index 15e944f..d802d2b 100644 --- a/libmaple/dac.c +++ b/libmaple/dac.c @@ -2,6 +2,7 @@ * The MIT License * * Copyright (c) 2010 Bryan Newbold. + * Copyright (c) 2011, 2012 LeafLabs, LLC. * * Permission is hereby granted, free of charge, to any person * obtaining a copy of this software and associated documentation @@ -25,25 +26,20 @@ *****************************************************************************/ /** - * @file dac.c + * @file libmaple/dac.c * @brief Digital to analog converter support. */ -#include "libmaple.h" -#include "gpio.h" -#include "dac.h" - -#ifdef STM32_HIGH_DENSITY - -/** - * @brief DAC peripheral routines. - */ +#include <libmaple/dac.h> +#include <libmaple/libmaple.h> +#include <libmaple/gpio.h> +#if STM32_HAVE_DAC dac_dev dac = { .regs = DAC_BASE, }; -/** DAC device. */ const dac_dev *DAC = &dac; +#endif /** * @brief Initialize the digital to analog converter @@ -92,16 +88,16 @@ void dac_write_channel(const dac_dev *dev, uint8 channel, uint16 val) { */ void dac_enable_channel(const dac_dev *dev, uint8 channel) { /* - * Setup ANALOG mode on PA4 and PA5. This mapping is consistent across - * all STM32 chips with a DAC. See RM0008 12.2. + * Setup ANALOG mode on PA4 and PA5. This mapping is consistent + * across all supported STM32s with a DAC. */ switch (channel) { case 1: - gpio_set_mode(GPIOA, 4, GPIO_INPUT_ANALOG); + gpio_set_mode(GPIOA, 4, GPIO_MODE_ANALOG); dev->regs->CR |= DAC_CR_EN1; break; case 2: - gpio_set_mode(GPIOA, 5, GPIO_INPUT_ANALOG); + gpio_set_mode(GPIOA, 5, GPIO_MODE_ANALOG); dev->regs->CR |= DAC_CR_EN2; break; } @@ -122,5 +118,3 @@ void dac_disable_channel(const dac_dev *dev, uint8 channel) { break; } } - -#endif /* STM32_HIGH_DENSITY */ |