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Diffstat (limited to 'libopencm3/include/libopencm3/stm32/f3/crc.h')
-rw-r--r-- | libopencm3/include/libopencm3/stm32/f3/crc.h | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/libopencm3/include/libopencm3/stm32/f3/crc.h b/libopencm3/include/libopencm3/stm32/f3/crc.h new file mode 100644 index 0000000..828832b --- /dev/null +++ b/libopencm3/include/libopencm3/stm32/f3/crc.h @@ -0,0 +1,70 @@ +/** @defgroup crc_defines CRC Defines + * + * @brief <b>Defined Constants and Types for the STM32F3xx CRC Generator </b> + * + * @ingroup STM32F3xx_defines + * + * @version 1.0.0 + * + * @date 18 August 2012 + * + * LGPL License Terms @ref lgpl_license + */ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2010 Thomas Otto <tommi@viadmin.org> + * + * This library is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This library 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 Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public License + * along with this library. If not, see <http://www.gnu.org/licenses/>. + */ + +#ifndef LIBOPENCM3_CRC_H +#define LIBOPENCM3_CRC_H + +#include <libopencm3/stm32/common/crc_common_all.h> + +/* --- CRC registers ------------------------------------------------------- */ + +/* Initial CRC value (CRC_INIT) */ +#define CRC_INIT MMIO32(CRC_BASE + 0x10) + +/* CRC polynomial (CRC_POL) */ +#define CRC_POL MMIO32(CRC_BASE + 0x14) + +/* --- CRC_CR values ------------------------------------------------------- */ + +/* REV_OUT: Reverse output data */ +#define CRC_CR_REV_OUT (1 << 7) + +/* REV_IN[1:0]: Reverse input data */ +#define CRC_CR_REV_IN_NOT_AFFECTED (0x0 << 5) +#define CRC_CR_REV_IN_BYTE (0x1 << 5) +#define CRC_CR_REV_IN_HALF_WORD (0x2 << 5) +#define CRC_CR_REV_IN_WORD (0x3 << 5) + +/* POLYSIZE[1:0]: Polynomial size */ +#define CRC_CR_POLYSIZE_32 (0x0 << 3) +#define CRC_CR_POLYSIZE_16 (0x1 << 3) +#define CRC_CR_POLYSIZE_8 (0x2 << 3) +#define CRC_CR_POLYSIZE_7 (0x3 << 3) + +/* --- CRC_INIT values ----------------------------------------------------- */ + +/* Bits 31:0 CRC_INIT: Programmable initial CRC value */ + +/* --- CRC_POL values ------------------------------------------------------ */ + +/* Bits 31:0 POL[31:0]: Programmable polynomial */ + +#endif |