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/*---------------------------------------------------------------------------*\
FILE........: stm32f4_dac.h
AUTHOR......: David Rowe
DATE CREATED: 1 June 2013
Two channel FIFO buffered DAC driver module for STM32F4.
\*---------------------------------------------------------------------------*/
/*
Copyright (C) 2013 David Rowe
All rights reserved.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License version 2.1, as
published by the Free Software Foundation. This program is
distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __STM32F4_DAC__
#define __STM32F4_DAC__
#define DAC_BUF_SZ 320
/* divisors for various sample rates */
#define DAC_FS_8KHZ 10500
#define DAC_FS_16KHZ 5250
#define DAC_FS_48KHZ 1750
#define DAC_FS_96KHZ 875
void dac_open(int fs_divisor, int fifo_sz, short *buf1, short *buf2);
int dac1_write(short buf[], int n, int limit); /* DAC1 pin PA4 */
int dac1_free();
int dac2_write(short buf[], int n, int limit); /* DAC2 pin PA5 */
int dac2_free();
#endif
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