/**
* \brief Initialize the DACC controller
* \param pDACC Pointer to an DACC instance.
* \param idDACC identifier of DAC peripheral
* \param trgEn trigger mode, free running mode or external Hardware trigger
* \param word transfer size,word or half word
* \param trgSel hardware trigger selection
* \param sleepMode sleep mode selection
* \param mck value of MCK in Hz
* \param refresh refresh period
* \param user_sel user channel selection ,0 or 1
* \param tag_mode tag for channel number
* \param startup value of the start up time (in DACCClock) (see datasheet)
*/
extern void DACC_Initialize( Dacc* pDACC,
uint8_t idDACC,
uint8_t trgEn,
uint8_t trgSel,
uint8_t word,
uint8_t sleepMode,
uint32_t mck,
uint8_t refresh, /* refresh period */
uint8_t user_sel, /* user channel selection */
uint32_t tag_mode, /* using tag for channel number */
uint32_t startup
)
{
/* Stop warning */
mck = mck;
/* Enable peripheral clock*/
PMC->PMC_PCER0 = 1 << idDACC;
/* Reset the controller */
DACC_SoftReset(pDACC);
/* Write to the MR register */
DACC_CfgModeReg( pDACC,
( trgEn & DACC_MR_TRGEN)
| DACC_MR_TRGSEL(trgSel)
| ( word & DACC_MR_WORD)
| ( sleepMode & DACC_MR_SLEEP)
| DACC_MR_REFRESH(refresh)
| ( user_sel & DACC_MR_USER_SEL_Msk)
| ( tag_mode & DACC_MR_TAG)
| ( startup & DACC_MR_STARTUP_Msk));
}
/**
* \brief Set DACC timings.
*
* \param p_dacc Pointer to a DACC instance.
* \param ul_refresh Refresh period setting value.
* \param ul_maxs Max speed mode configuration.
* \param ul_startup Startup time selection.
*
* \return \ref DACC_RC_OK for OK.
*/
uint32_t dacc_set_timing(Dacc *p_dacc,
uint32_t ul_refresh, uint32_t ul_maxs, uint32_t ul_startup)
{
uint32_t mr = p_dacc->DACC_MR
& (~(DACC_MR_REFRESH_Msk | DACC_MR_STARTUP_Msk));
mr |= DACC_MR_REFRESH(ul_refresh);
if (ul_maxs) {
mr |= DACC_MR_MAXS;
} else {
mr &= ~DACC_MR_MAXS;
}
mr |= (DACC_MR_STARTUP_Msk & ((ul_startup) << DACC_MR_STARTUP_Pos));
p_dacc->DACC_MR = mr;
return DACC_RC_OK;
}
{
assert( 1024*refresh*1000/(mck>>1) < 20 ) ;
/* Enable peripheral clock*/
PMC->PMC_PCER0 = 1 << idDACC;
/* Reset the controller */
DACC_SoftReset(pDACC);
/* Write to the MR register */
DACC_CfgModeReg( pDACC,
( (trgEn<<0) & DACC_MR_TRGEN)
| DACC_MR_TRGSEL(trgSel)
| ( (word<<4) & DACC_MR_WORD)
| ( (sleepMode<<5) & DACC_MR_SLEEP)
| DACC_MR_REFRESH(refresh)
| ( (user_sel<<DACC_MR_USER_SEL_Pos)& DACC_MR_USER_SEL_Msk)
| ( (tag_mode<<20) & DACC_MR_TAG)
| ( (startup<<DACC_MR_STARTUP_Pos) & DACC_MR_STARTUP_Msk));
}
/**
* Set the Conversion Data
* \param pDACC Pointer to an Dacc instance.
* \param dwData date to be converted.
*/
extern void DACC_SetConversionData( Dacc* pDACC, uint32_t dwData )
{
uint32_t dwMR = pDACC->DACC_MR ;
