Johannes Stratmann
added prescaler for 16 bit pwm in LPC1347 target
Fork of
mbed-dev
by 
mbed official
Diff: targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/emlib/src/em_opamp.c
- Revision:
- 50:a417edff4437
- Parent:
- 0:9b334a45a8ff
- Child:
- 144:ef7eb2e8f9f7
--- a/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/emlib/src/em_opamp.c Wed Jan 13 12:45:11 2016 +0000
+++ b/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/emlib/src/em_opamp.c Fri Jan 15 07:45:16 2016 +0000
@@ -1,10 +1,10 @@
/**************************************************************************//**
* @file em_opamp.c
* @brief Operational Amplifier (OPAMP) peripheral API
- * @version 3.20.12
+ * @version 4.2.1
******************************************************************************
* @section License
- * <b>(C) Copyright 2014 Silicon Labs, http://www.silabs.com</b>
+ * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
*******************************************************************************
*
* Permission is granted to anyone to use this software for any purpose,
@@ -30,13 +30,11 @@
*
******************************************************************************/
-
-#include "em_device.h"
-#if defined( OPAMP_PRESENT ) && ( OPAMP_COUNT == 1 )
+#include "em_opamp.h"
+#if defined(OPAMP_PRESENT) && (OPAMP_COUNT == 1)
#include "em_system.h"
#include "em_assert.h"
-#include "em_opamp.h"
/***************************************************************************//**
* @addtogroup EM_Library
@@ -204,17 +202,17 @@
* @param[in] opa
* Selects an OPA, valid vaules are @ref OPA0, @ref OPA1 and @ref OPA2.
******************************************************************************/
-void OPAMP_Disable( DAC_TypeDef *dac, OPAMP_TypeDef opa )
+void OPAMP_Disable(DAC_TypeDef *dac, OPAMP_TypeDef opa)
{
- EFM_ASSERT( DAC_REF_VALID( dac ) );
- EFM_ASSERT( DAC_OPA_VALID( opa ) );
+ EFM_ASSERT(DAC_REF_VALID(dac));
+ EFM_ASSERT(DAC_OPA_VALID(opa));
- if ( opa == OPA0 )
+ if (opa == OPA0)
{
dac->CH0CTRL &= ~DAC_CH0CTRL_EN;
dac->OPACTRL &= ~DAC_OPACTRL_OPA0EN;
}
- else if ( opa == OPA1 )
+ else if (opa == OPA1)
{
dac->CH1CTRL &= ~DAC_CH1CTRL_EN;
dac->OPACTRL &= ~DAC_OPACTRL_OPA1EN;
@@ -265,163 +263,163 @@
* @param[in] init
* Pointer to a structure containing OPAMP init information.
******************************************************************************/
-void OPAMP_Enable( DAC_TypeDef *dac, OPAMP_TypeDef opa, const OPAMP_Init_TypeDef *init )
+void OPAMP_Enable(DAC_TypeDef *dac, OPAMP_TypeDef opa, const OPAMP_Init_TypeDef *init)
{
uint32_t offset;
- EFM_ASSERT( DAC_REF_VALID( dac ) );
- EFM_ASSERT( DAC_OPA_VALID( opa ) );
- EFM_ASSERT( init->bias <= ( _DAC_BIASPROG_BIASPROG_MASK >>
- _DAC_BIASPROG_BIASPROG_SHIFT ) );
+ EFM_ASSERT(DAC_REF_VALID(dac));
+ EFM_ASSERT(DAC_OPA_VALID(opa));
+ EFM_ASSERT(init->bias <= (_DAC_BIASPROG_BIASPROG_MASK
+ >> _DAC_BIASPROG_BIASPROG_SHIFT));
- if ( opa == OPA0 )
+ if (opa == OPA0)
{
- EFM_ASSERT( ( init->outPen & ~_DAC_OPA0MUX_OUTPEN_MASK ) == 0 );
+ EFM_ASSERT((init->outPen & ~_DAC_OPA0MUX_OUTPEN_MASK) == 0);
- dac->BIASPROG = ( dac->BIASPROG
- & ~( _DAC_BIASPROG_BIASPROG_MASK |
- DAC_BIASPROG_HALFBIAS ) ) |
- ( init->bias << _DAC_BIASPROG_BIASPROG_SHIFT ) |
- ( init->halfBias ? DAC_BIASPROG_HALFBIAS : 0 );
+ dac->BIASPROG = (dac->BIASPROG
+ & ~(_DAC_BIASPROG_BIASPROG_MASK
+ | DAC_BIASPROG_HALFBIAS))
+ | (init->bias << _DAC_BIASPROG_BIASPROG_SHIFT)
+ | (init->halfBias ? DAC_BIASPROG_HALFBIAS : 0);
- if ( init->defaultOffset )
+ if (init->defaultOffset)
{
- offset = SYSTEM_GetCalibrationValue( &dac->CAL );
- dac->CAL = ( dac->CAL & ~_DAC_CAL_CH0OFFSET_MASK ) |
- ( offset & _DAC_CAL_CH0OFFSET_MASK );
+ offset = SYSTEM_GetCalibrationValue(&dac->CAL);
+ dac->CAL = (dac->CAL & ~_DAC_CAL_CH0OFFSET_MASK)
+ | (offset & _DAC_CAL_CH0OFFSET_MASK);
}
else
{
- EFM_ASSERT( init->offset <= ( _DAC_CAL_CH0OFFSET_MASK >>
- _DAC_CAL_CH0OFFSET_SHIFT ) );
+ EFM_ASSERT(init->offset <= (_DAC_CAL_CH0OFFSET_MASK
+ >> _DAC_CAL_CH0OFFSET_SHIFT));
- dac->CAL = ( dac->CAL & ~_DAC_CAL_CH0OFFSET_MASK ) |
- ( init->offset << _DAC_CAL_CH0OFFSET_SHIFT );
+ dac->CAL = (dac->CAL & ~_DAC_CAL_CH0OFFSET_MASK)
+ | (init->offset << _DAC_CAL_CH0OFFSET_SHIFT);
}
- dac->OPA0MUX = (uint32_t)init->resSel |
- (uint32_t)init->outMode |
- init->outPen |
- (uint32_t)init->resInMux |
- (uint32_t)init->negSel |
- (uint32_t)init->posSel |
- ( init->nextOut ? DAC_OPA0MUX_NEXTOUT : 0 ) |
- ( init->npEn ? DAC_OPA0MUX_NPEN : 0 ) |
- ( init->ppEn ? DAC_OPA0MUX_PPEN : 0 );
+ dac->OPA0MUX = (uint32_t)init->resSel
+ | (uint32_t)init->outMode
+ | init->outPen
+ | (uint32_t)init->resInMux
+ | (uint32_t)init->negSel
+ | (uint32_t)init->posSel
+ | ( init->nextOut ? DAC_OPA0MUX_NEXTOUT : 0)
+ | ( init->npEn ? DAC_OPA0MUX_NPEN : 0)
+ | ( init->ppEn ? DAC_OPA0MUX_PPEN : 0);
dac->CH0CTRL |= DAC_CH0CTRL_EN;
- dac->OPACTRL = ( dac->OPACTRL
- & ~( DAC_OPACTRL_OPA0SHORT |
- _DAC_OPACTRL_OPA0LPFDIS_MASK |
- DAC_OPACTRL_OPA0HCMDIS ) ) |
- ( init->shortInputs ? DAC_OPACTRL_OPA0SHORT : 0 ) |
- ( init->lpfPosPadDisable ?
- DAC_OPACTRL_OPA0LPFDIS_PLPFDIS : 0 ) |
- ( init->lpfNegPadDisable ?
- DAC_OPACTRL_OPA0LPFDIS_NLPFDIS : 0 ) |
- ( init->hcmDisable ? DAC_OPACTRL_OPA0HCMDIS : 0 ) |
- ( DAC_OPACTRL_OPA0EN );
+ dac->OPACTRL = (dac->OPACTRL
+ & ~(DAC_OPACTRL_OPA0SHORT
+ | _DAC_OPACTRL_OPA0LPFDIS_MASK
+ | DAC_OPACTRL_OPA0HCMDIS))
+ | (init->shortInputs ? DAC_OPACTRL_OPA0SHORT : 0)
+ | (init->lpfPosPadDisable
+ ? DAC_OPACTRL_OPA0LPFDIS_PLPFDIS : 0)
+ | (init->lpfNegPadDisable
+ ? DAC_OPACTRL_OPA0LPFDIS_NLPFDIS : 0)
+ | (init->hcmDisable ? DAC_OPACTRL_OPA0HCMDIS : 0)
+ | DAC_OPACTRL_OPA0EN;
}
else if ( opa == OPA1 )
{
- EFM_ASSERT( ( init->outPen & ~_DAC_OPA1MUX_OUTPEN_MASK ) == 0 );
+ EFM_ASSERT((init->outPen & ~_DAC_OPA1MUX_OUTPEN_MASK) == 0);
- dac->BIASPROG = ( dac->BIASPROG
- & ~( _DAC_BIASPROG_BIASPROG_MASK |
- DAC_BIASPROG_HALFBIAS ) ) |
- ( init->bias << _DAC_BIASPROG_BIASPROG_SHIFT ) |
- ( init->halfBias ? DAC_BIASPROG_HALFBIAS : 0 );
+ dac->BIASPROG = (dac->BIASPROG
+ & ~(_DAC_BIASPROG_BIASPROG_MASK
+ | DAC_BIASPROG_HALFBIAS))
+ | (init->bias << _DAC_BIASPROG_BIASPROG_SHIFT)
+ | (init->halfBias ? DAC_BIASPROG_HALFBIAS : 0 );
- if ( init->defaultOffset )
+ if (init->defaultOffset)
{
- offset = SYSTEM_GetCalibrationValue( &dac->CAL );
- dac->CAL = ( dac->CAL & ~_DAC_CAL_CH1OFFSET_MASK ) |
- ( offset & _DAC_CAL_CH1OFFSET_MASK );
+ offset = SYSTEM_GetCalibrationValue(&dac->CAL);
+ dac->CAL = (dac->CAL & ~_DAC_CAL_CH1OFFSET_MASK)
+ | (offset & _DAC_CAL_CH1OFFSET_MASK);
}
else
{
- EFM_ASSERT( init->offset <= ( _DAC_CAL_CH1OFFSET_MASK >>
- _DAC_CAL_CH1OFFSET_SHIFT ) );
+ EFM_ASSERT(init->offset <= (_DAC_CAL_CH1OFFSET_MASK
+ >> _DAC_CAL_CH1OFFSET_SHIFT));
- dac->CAL = ( dac->CAL & ~_DAC_CAL_CH1OFFSET_MASK ) |
- ( init->offset << _DAC_CAL_CH1OFFSET_SHIFT );
+ dac->CAL = (dac->CAL & ~_DAC_CAL_CH1OFFSET_MASK)
+ | (init->offset << _DAC_CAL_CH1OFFSET_SHIFT);
}
- dac->OPA1MUX = (uint32_t)init->resSel |
- (uint32_t)init->outMode |
- init->outPen |
- (uint32_t)init->resInMux |
- (uint32_t)init->negSel |
- (uint32_t)init->posSel |
- ( init->nextOut ? DAC_OPA1MUX_NEXTOUT : 0 ) |
- ( init->npEn ? DAC_OPA1MUX_NPEN : 0 ) |
- ( init->ppEn ? DAC_OPA1MUX_PPEN : 0 );
+ dac->OPA1MUX = (uint32_t)init->resSel
+ | (uint32_t)init->outMode
+ | init->outPen
+ | (uint32_t)init->resInMux
+ | (uint32_t)init->negSel
+ | (uint32_t)init->posSel
+ | (init->nextOut ? DAC_OPA1MUX_NEXTOUT : 0)
+ | (init->npEn ? DAC_OPA1MUX_NPEN : 0)
+ | (init->ppEn ? DAC_OPA1MUX_PPEN : 0);
dac->CH1CTRL |= DAC_CH1CTRL_EN;
- dac->OPACTRL = ( dac->OPACTRL
- & ~( DAC_OPACTRL_OPA1SHORT |
- _DAC_OPACTRL_OPA1LPFDIS_MASK |
- DAC_OPACTRL_OPA1HCMDIS ) ) |
- ( init->shortInputs ? DAC_OPACTRL_OPA1SHORT : 0 ) |
- ( init->lpfPosPadDisable ?
- DAC_OPACTRL_OPA1LPFDIS_PLPFDIS : 0 ) |
- ( init->lpfNegPadDisable ?
- DAC_OPACTRL_OPA1LPFDIS_NLPFDIS : 0 ) |
- ( init->hcmDisable ? DAC_OPACTRL_OPA1HCMDIS : 0 ) |
- ( DAC_OPACTRL_OPA1EN );
+ dac->OPACTRL = (dac->OPACTRL
+ & ~(DAC_OPACTRL_OPA1SHORT
+ | _DAC_OPACTRL_OPA1LPFDIS_MASK
+ | DAC_OPACTRL_OPA1HCMDIS))
+ | (init->shortInputs ? DAC_OPACTRL_OPA1SHORT : 0)
+ | (init->lpfPosPadDisable
+ ? DAC_OPACTRL_OPA1LPFDIS_PLPFDIS : 0)
+ | (init->lpfNegPadDisable
+ ? DAC_OPACTRL_OPA1LPFDIS_NLPFDIS : 0)
+ | (init->hcmDisable ? DAC_OPACTRL_OPA1HCMDIS : 0)
+ | DAC_OPACTRL_OPA1EN;
}
else /* OPA2 */
{
- EFM_ASSERT( ( init->posSel == DAC_OPA2MUX_POSSEL_DISABLE ) ||
- ( init->posSel == DAC_OPA2MUX_POSSEL_POSPAD ) ||
- ( init->posSel == DAC_OPA2MUX_POSSEL_OPA1INP ) ||
- ( init->posSel == DAC_OPA2MUX_POSSEL_OPATAP ) );
+ EFM_ASSERT((init->posSel == DAC_OPA2MUX_POSSEL_DISABLE)
+ || (init->posSel == DAC_OPA2MUX_POSSEL_POSPAD)
+ || (init->posSel == DAC_OPA2MUX_POSSEL_OPA1INP)
+ || (init->posSel == DAC_OPA2MUX_POSSEL_OPATAP));
- EFM_ASSERT( ( init->outMode & ~DAC_OPA2MUX_OUTMODE ) == 0 );
+ EFM_ASSERT((init->outMode & ~DAC_OPA2MUX_OUTMODE) == 0);
- EFM_ASSERT( ( init->outPen & ~_DAC_OPA2MUX_OUTPEN_MASK ) == 0 );
+ EFM_ASSERT((init->outPen & ~_DAC_OPA2MUX_OUTPEN_MASK) == 0);
- dac->BIASPROG = ( dac->BIASPROG
- & ~( _DAC_BIASPROG_OPA2BIASPROG_MASK |
- DAC_BIASPROG_OPA2HALFBIAS ) ) |
- ( init->bias << _DAC_BIASPROG_OPA2BIASPROG_SHIFT ) |
- ( init->halfBias ? DAC_BIASPROG_OPA2HALFBIAS : 0 );
+ dac->BIASPROG = (dac->BIASPROG
+ & ~(_DAC_BIASPROG_OPA2BIASPROG_MASK
+ | DAC_BIASPROG_OPA2HALFBIAS))
+ | (init->bias << _DAC_BIASPROG_OPA2BIASPROG_SHIFT)
+ | (init->halfBias ? DAC_BIASPROG_OPA2HALFBIAS : 0);
- if ( init->defaultOffset )
+ if (init->defaultOffset)
{
- offset = SYSTEM_GetCalibrationValue( &dac->OPAOFFSET );
- dac->OPAOFFSET = ( dac->OPAOFFSET & ~_DAC_OPAOFFSET_OPA2OFFSET_MASK ) |
- ( offset & _DAC_OPAOFFSET_OPA2OFFSET_MASK );
+ offset = SYSTEM_GetCalibrationValue(&dac->OPAOFFSET);
+ dac->OPAOFFSET = (dac->OPAOFFSET & ~_DAC_OPAOFFSET_OPA2OFFSET_MASK)
+ | (offset & _DAC_OPAOFFSET_OPA2OFFSET_MASK);
}
else
{
- EFM_ASSERT( init->offset <= ( _DAC_OPAOFFSET_OPA2OFFSET_MASK >>
- _DAC_OPAOFFSET_OPA2OFFSET_SHIFT ) );
- dac->OPAOFFSET = ( dac->OPAOFFSET & ~_DAC_OPAOFFSET_OPA2OFFSET_MASK ) |
- ( init->offset << _DAC_OPAOFFSET_OPA2OFFSET_SHIFT );
+ EFM_ASSERT(init->offset <= (_DAC_OPAOFFSET_OPA2OFFSET_MASK
+ >> _DAC_OPAOFFSET_OPA2OFFSET_SHIFT));
+ dac->OPAOFFSET = (dac->OPAOFFSET & ~_DAC_OPAOFFSET_OPA2OFFSET_MASK)
+ | (init->offset << _DAC_OPAOFFSET_OPA2OFFSET_SHIFT);
}
- dac->OPA2MUX = (uint32_t)init->resSel |
- (uint32_t)init->outMode |
- init->outPen |
- (uint32_t)init->resInMux |
- (uint32_t)init->negSel |
- (uint32_t)init->posSel |
- ( init->nextOut ? DAC_OPA2MUX_NEXTOUT : 0 ) |
- ( init->npEn ? DAC_OPA2MUX_NPEN : 0 ) |
- ( init->ppEn ? DAC_OPA2MUX_PPEN : 0 );
+ dac->OPA2MUX = (uint32_t)init->resSel
+ | (uint32_t)init->outMode
+ | init->outPen
+ | (uint32_t)init->resInMux
+ | (uint32_t)init->negSel
+ | (uint32_t)init->posSel
+ | ( init->nextOut ? DAC_OPA2MUX_NEXTOUT : 0 )
+ | ( init->npEn ? DAC_OPA2MUX_NPEN : 0 )
+ | ( init->ppEn ? DAC_OPA2MUX_PPEN : 0 );
- dac->OPACTRL = ( dac->OPACTRL
- & ~( DAC_OPACTRL_OPA2SHORT |
- _DAC_OPACTRL_OPA2LPFDIS_MASK |
- DAC_OPACTRL_OPA2HCMDIS ) ) |
- ( init->shortInputs ? DAC_OPACTRL_OPA2SHORT : 0 ) |
- ( init->lpfPosPadDisable ?
- DAC_OPACTRL_OPA2LPFDIS_PLPFDIS : 0 ) |
- ( init->lpfNegPadDisable ?
- DAC_OPACTRL_OPA2LPFDIS_NLPFDIS : 0 ) |
- ( init->hcmDisable ? DAC_OPACTRL_OPA2HCMDIS : 0 ) |
- ( DAC_OPACTRL_OPA2EN );
+ dac->OPACTRL = (dac->OPACTRL
+ & ~(DAC_OPACTRL_OPA2SHORT
+ | _DAC_OPACTRL_OPA2LPFDIS_MASK
+ | DAC_OPACTRL_OPA2HCMDIS))
+ | (init->shortInputs ? DAC_OPACTRL_OPA2SHORT : 0)
+ | (init->lpfPosPadDisable
+ ? DAC_OPACTRL_OPA2LPFDIS_PLPFDIS : 0)
+ | (init->lpfNegPadDisable
+ ? DAC_OPACTRL_OPA2LPFDIS_NLPFDIS : 0)
+ | (init->hcmDisable ? DAC_OPACTRL_OPA2HCMDIS : 0)
+ | DAC_OPACTRL_OPA2EN;
}
}