mirror of https://github.com/markqvist/MMDVM.git
51 lines
1.8 KiB
C
51 lines
1.8 KiB
C
/*
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* source: http://mightydevices.com/?p=144
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#if !defined(STM32UTILS_H)
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#define STM32UTILS_H
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#include <stdint.h>
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/* ram function */
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#define RAMFUNC __attribute__ ((long_call, section (".data")))
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/* eeprom data */
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/* for placing variables in eeprom memory */
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#define EEMEM __attribute__((section(".eeprom")))
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/* bitband type */
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typedef volatile uint32_t * const bitband_t;
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/* base address for bit banding */
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#define BITBAND_SRAM_REF (0x20000000)
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/* base address for bit banding */
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#define BITBAND_SRAM_BASE (0x22000000)
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/* base address for bit banding */
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#define BITBAND_PERIPH_REF (0x40000000)
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/* base address for bit banding */
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#define BITBAND_PERIPH_BASE (0x42000000)
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/* sram bit band */
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#define BITBAND_SRAM(address, bit) ((void*)(BITBAND_SRAM_BASE + \
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(((uint32_t)address) - BITBAND_SRAM_REF) * 32 + (bit) * 4))
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/* periph bit band */
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#define BITBAND_PERIPH(address, bit) ((void *)(BITBAND_PERIPH_BASE + \
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(((uint32_t)address) - BITBAND_PERIPH_REF) * 32 + (bit) * 4))
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#endif
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