diff options
Diffstat (limited to 'msp340/Break/driverlib/MSP430FR5xx_6xx/mpy32.c')
| -rwxr-xr-x | msp340/Break/driverlib/MSP430FR5xx_6xx/mpy32.c | 179 |
1 files changed, 179 insertions, 0 deletions
diff --git a/msp340/Break/driverlib/MSP430FR5xx_6xx/mpy32.c b/msp340/Break/driverlib/MSP430FR5xx_6xx/mpy32.c new file mode 100755 index 0000000..49cb006 --- /dev/null +++ b/msp340/Break/driverlib/MSP430FR5xx_6xx/mpy32.c @@ -0,0 +1,179 @@ +/* --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--*/ +//***************************************************************************** +// +// mpy32.c - Driver for the mpy32 Module. +// +//***************************************************************************** + +//***************************************************************************** +// +//! \addtogroup mpy32_api mpy32 +//! @{ +// +//***************************************************************************** + +#include "inc/hw_regaccess.h" +#include "inc/hw_memmap.h" + +#ifdef __MSP430_HAS_MPY32__ +#include "mpy32.h" + +#include <assert.h> + +void MPY32_setWriteDelay(uint16_t writeDelaySelect) +{ + HWREG16(MPY32_BASE + OFS_MPY32CTL0) &= ~(MPYDLY32 + MPYDLYWRTEN); + HWREG16(MPY32_BASE + OFS_MPY32CTL0) |= writeDelaySelect; +} + +void MPY32_enableSaturationMode(void) +{ + HWREG8(MPY32_BASE + OFS_MPY32CTL0_L) |= MPYSAT; +} + +void MPY32_disableSaturationMode(void) +{ + HWREG8(MPY32_BASE + OFS_MPY32CTL0_L) &= ~(MPYSAT); +} + +uint8_t MPY32_getSaturationMode(void) +{ + return (HWREG8(MPY32_BASE + OFS_MPY32CTL0_L) & (MPYSAT)); +} + +void MPY32_enableFractionalMode(void) +{ + HWREG8(MPY32_BASE + OFS_MPY32CTL0_L) |= MPYFRAC; +} + +void MPY32_disableFractionalMode(void) +{ + HWREG8(MPY32_BASE + OFS_MPY32CTL0_L) &= ~(MPYFRAC); +} + +uint8_t MPY32_getFractionalMode(void) +{ + return (HWREG8(MPY32_BASE + OFS_MPY32CTL0_L) & (MPYFRAC)); +} + +void MPY32_setOperandOne8Bit(uint8_t multiplicationType, + uint8_t operand) +{ + HWREG8(MPY32_BASE + OFS_MPY + multiplicationType) = operand; +} + +void MPY32_setOperandOne16Bit(uint8_t multiplicationType, + uint16_t operand) +{ + HWREG16(MPY32_BASE + OFS_MPY + multiplicationType) = operand; +} + +void MPY32_setOperandOne24Bit(uint8_t multiplicationType, + uint32_t operand) +{ + multiplicationType <<= 1; + HWREG16(MPY32_BASE + OFS_MPY32L + multiplicationType) = operand; + HWREG8(MPY32_BASE + OFS_MPY32H + multiplicationType) = (operand >> 16); +} + +void MPY32_setOperandOne32Bit(uint8_t multiplicationType, + uint32_t operand) +{ + multiplicationType <<= 1; + HWREG16(MPY32_BASE + OFS_MPY32L + multiplicationType) = operand; + HWREG16(MPY32_BASE + OFS_MPY32H + multiplicationType) = (operand >> 16); +} + +void MPY32_setOperandTwo8Bit(uint8_t operand) +{ + HWREG8(MPY32_BASE + OFS_OP2) = operand; +} + +void MPY32_setOperandTwo16Bit(uint16_t operand) +{ + HWREG16(MPY32_BASE + OFS_OP2) = operand; +} + +void MPY32_setOperandTwo24Bit(uint32_t operand) +{ + HWREG16(MPY32_BASE + OFS_OP2L) = operand; + HWREG8(MPY32_BASE + OFS_OP2H) = (operand >> 16); +} + +void MPY32_setOperandTwo32Bit(uint32_t operand) +{ + HWREG16(MPY32_BASE + OFS_OP2L) = operand; + HWREG16(MPY32_BASE + OFS_OP2H) = (operand >> 16); +} + +uint64_t MPY32_getResult(void) +{ + uint64_t result; + + result = HWREG16(MPY32_BASE + OFS_RES0); + result += ((uint64_t)HWREG16(MPY32_BASE + OFS_RES1) << 16); + result += ((uint64_t)HWREG16(MPY32_BASE + OFS_RES2) << 32); + result += ((uint64_t)HWREG16(MPY32_BASE + OFS_RES3) << 48); + return (result); +} + +uint16_t MPY32_getSumExtension(void) +{ + return (HWREG16(MPY32_BASE + OFS_SUMEXT)); +} + +uint16_t MPY32_getCarryBitValue(void) +{ + return (HWREG16(MPY32_BASE + OFS_MPY32CTL0) | MPYC); +} + +void MPY32_clearCarryBitValue(void) +{ + HWREG16(MPY32_BASE + OFS_MPY32CTL0) &= ~MPYC; +} + +void MPY32_preloadResult(uint64_t result) +{ + HWREG16(MPY32_BASE + OFS_RES0) = (result & 0xFFFF); + HWREG16(MPY32_BASE + OFS_RES1) = ((result >> 16) & 0xFFFF); + HWREG16(MPY32_BASE + OFS_RES2) = ((result >> 32) & 0xFFFF); + HWREG16(MPY32_BASE + OFS_RES3) = ((result >> 48) & 0xFFFF); +} + +#endif +//***************************************************************************** +// +//! Close the doxygen group for mpy32_api +//! @} +// +//***************************************************************************** |
