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Diffstat (limited to 'msp340/Timers/driverlib/MSP430FR5xx_6xx/crc32.c')
| -rwxr-xr-x | msp340/Timers/driverlib/MSP430FR5xx_6xx/crc32.c | 172 |
1 files changed, 172 insertions, 0 deletions
diff --git a/msp340/Timers/driverlib/MSP430FR5xx_6xx/crc32.c b/msp340/Timers/driverlib/MSP430FR5xx_6xx/crc32.c new file mode 100755 index 0000000..420e17f --- /dev/null +++ b/msp340/Timers/driverlib/MSP430FR5xx_6xx/crc32.c @@ -0,0 +1,172 @@ +/* --COPYRIGHT--,BSD + * Copyright (c) 2014, Texas Instruments Incorporated + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Texas Instruments Incorporated nor the names of + * its contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; + * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR + * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, + * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * --/COPYRIGHT--*/ +//***************************************************************************** +// +// crc32.c - Driver for the crc32 Module. +// +//***************************************************************************** + +//***************************************************************************** +// +//! \addtogroup crc32_api crc32 +//! @{ +// +//***************************************************************************** + +#include "inc/hw_regaccess.h" +#include "inc/hw_memmap.h" + +#ifdef __MSP430_HAS_CRC32__ +#include "crc32.h" + +#include <assert.h> + +void CRC32_setSeed(uint32_t seed, + uint8_t crcMode) +{ + if(CRC16_MODE == crcMode) + { + HWREG16(CRC32_BASE + OFS_CRC16INIRESW0) = seed; + } + else + { + HWREG16(CRC32_BASE + OFS_CRC32INIRESW1) = ((seed & 0xFFFF0000) + >> 16); + HWREG16(CRC32_BASE + OFS_CRC32INIRESW0) = (seed & 0xFFFF); + } +} + +void CRC32_set8BitData(uint8_t dataIn, + uint8_t crcMode) +{ + if(CRC16_MODE == crcMode) + { + HWREG8(CRC32_BASE + OFS_CRC16DIW0_L) = dataIn; + } + else + { + HWREG8(CRC32_BASE + OFS_CRC32DIW0_L) = dataIn; + } +} + +void CRC32_set16BitData(uint16_t dataIn, + uint8_t crcMode) +{ + if(CRC16_MODE == crcMode) + { + HWREG16(CRC32_BASE + OFS_CRC16DIW0) = dataIn; + } + else + { + HWREG16(CRC32_BASE + OFS_CRC32DIW0) = dataIn; + } +} + +void CRC32_set32BitData(uint32_t dataIn) +{ + HWREG16(CRC32_BASE + OFS_CRC32DIW0) = dataIn & 0xFFFF; + HWREG16(CRC32_BASE + OFS_CRC32DIW1) = (uint16_t) ((dataIn & 0xFFFF0000) + >> 16); +} + +void CRC32_set8BitDataReversed(uint8_t dataIn, + uint8_t crcMode) +{ + if(CRC16_MODE == crcMode) + { + HWREG8(CRC32_BASE + OFS_CRC16DIRBW1_L) = dataIn; + } + else + { + HWREG8(CRC32_BASE + OFS_CRC32DIRBW1_L) = dataIn; + } +} + +void CRC32_set16BitDataReversed(uint16_t dataIn, + uint8_t crcMode) +{ + if(CRC16_MODE == crcMode) + { + HWREG16(CRC32_BASE + OFS_CRC16DIRBW1) = dataIn; + } + else + { + HWREG16(CRC32_BASE + OFS_CRC32DIRBW1) = dataIn; + } +} + +void CRC32_set32BitDataReversed(uint32_t dataIn) +{ + HWREG16(CRC32_BASE + OFS_CRC32DIRBW1) = dataIn & 0xFFFF; + HWREG16(CRC32_BASE + OFS_CRC32DIRBW0) = (uint16_t) ((dataIn & 0xFFFF0000) + >> 16); +} + +uint32_t CRC32_getResult(uint8_t crcMode) +{ + if(CRC16_MODE == crcMode) + { + return (HWREG16(CRC32_BASE + OFS_CRC16INIRESW0)); + } + else + { + uint32_t result = 0; + result = HWREG16(CRC32_BASE + OFS_CRC32INIRESW1); + result = (result << 16); + result |= HWREG16(CRC32_BASE + OFS_CRC32INIRESW0); + return (result); + } +} + +uint32_t CRC32_getResultReversed(uint8_t crcMode) +{ + if(CRC16_MODE == crcMode) + { + return (HWREG16(CRC32_BASE + OFS_CRC16RESRW0)); + } + else + { + uint32_t result = 0; + result = HWREG16(CRC32_BASE + OFS_CRC32RESRW0); + result = (result << 16); + result |= HWREG16(CRC32_BASE + OFS_CRC32RESRW1); + return (result); + } +} + +#endif +//***************************************************************************** +// +//! Close the doxygen group for crc32_api +//! @} +// +//***************************************************************************** |