/*FUNCTION****************************************************************
*
* Function Name: FLEXIO_UART_Tx_HAL_Configure
* Description: Configure the flexio working as uart tx device.
*
*END*********************************************************************/
flexio_status_t FLEXIO_UART_Tx_HAL_Configure(
flexio_uart_tx_dev_t *devPtr, const flexio_uart_config_t *configPtr)
{
flexio_timer_config_t mFlexioTimerConfigStruct;
flexio_shifter_config_t mFlexioShifterConfigStruct;
memset(&mFlexioShifterConfigStruct, 0, sizeof(mFlexioShifterConfigStruct));
memset(&mFlexioTimerConfigStruct, 0, sizeof(mFlexioTimerConfigStruct));
uint32_t divider, timCmp;
if ( (!devPtr) || (!configPtr) )
{
return kStatus_FLEXIO_InvalidArgument;
}
/* 1. Configure the shifter 0 for tx buffer. */
mFlexioShifterConfigStruct.timsel = devPtr->timerIdx;
mFlexioShifterConfigStruct.timpol = kFlexioShifterTimerPolarityOnPositive;
mFlexioShifterConfigStruct.pincfg = kFlexioPinConfigOutput;
mFlexioShifterConfigStruct.pinsel = devPtr->txPinIdx;
mFlexioShifterConfigStruct.pinpol = kFlexioPinActiveHigh;
mFlexioShifterConfigStruct.smode = kFlexioShifterModeTransmit;
mFlexioShifterConfigStruct.insrc = kFlexioShifterInputFromPin;
mFlexioShifterConfigStruct.sstop = kFlexioShifterStopBitHigh;
mFlexioShifterConfigStruct.sstart = kFlexioShifterStartBitLow;
FLEXIO_HAL_ConfigureShifter(
devPtr->flexioBase, devPtr->shifterIdx, &mFlexioShifterConfigStruct);
/* 2. Configure the timer 0 for bandrate. */
mFlexioTimerConfigStruct.trgsel = FLEXIO_HAL_TIMER_TRIGGER_SEL_SHIFTnSTAT(devPtr->shifterIdx);
mFlexioTimerConfigStruct.trgpol = kFlexioTimerTriggerPolarityActiveLow;
mFlexioTimerConfigStruct.trgsrc = kFlexioTimerTriggerSourceInternal;
mFlexioTimerConfigStruct.pincfg = kFlexioPinConfigOutputDisabled;
mFlexioTimerConfigStruct.pinsel = devPtr->txPinIdx;
mFlexioTimerConfigStruct.pinpol = kFlexioPinActiveHigh;
mFlexioTimerConfigStruct.timod = kFlexioTimerModeDual8BitBaudBit;
mFlexioTimerConfigStruct.timout = kFlexioTimerOutputOneNotAffectedByReset;
mFlexioTimerConfigStruct.timdec = kFlexioTimerDecSrcOnFlexIOClockShiftTimerOutput;
mFlexioTimerConfigStruct.timrst = kFlexioTimerResetNever;
mFlexioTimerConfigStruct.timdis = kFlexioTimerDisableOnTimerCompare;
mFlexioTimerConfigStruct.timena = kFlexioTimerEnableOnTriggerHigh;
mFlexioTimerConfigStruct.tstop = kFlexioTimerStopBitEnableOnTimerCompareDisable;
mFlexioTimerConfigStruct.tstart = kFlexioTimerStartBitEnabled;
divider = configPtr->flexioBusClk / configPtr->baudrate;
timCmp = ( ((configPtr->bitCount) << 1U) - 1U ) << 8U;
timCmp |= ( (divider >> 1U) - 1U );
mFlexioTimerConfigStruct.timcmp = timCmp;
FLEXIO_HAL_ConfigureTimer(
devPtr->flexioBase, devPtr->timerIdx, &mFlexioTimerConfigStruct);
return kStatus_FLEXIO_Success;
}
.baudRate = 9600,
.parityMode = kLpuartParityEven,
.stopBitCount = kLpuartOneStopBit,
.bitCountPerChar = kLpuart9BitsPerChar,
};
/* FlexIO config for RGB LED */
static flexio_user_config_t g_flexioConfig = {
.useInt = false,
.onDozeEnable = true,
.onDebugEnable = false,
.fastAccessEnable = true,
};
static flexio_timer_config_t g_timerConfig = {
.trgsel = FLEXIO_HAL_TIMER_TRIGGER_SEL_SHIFTnSTAT(0),
.trgpol = kFlexioTimerTriggerPolarityActiveLow,
.trgsrc = kFlexioTimerTriggerSourceInternal,
.pincfg = kFlexioPinConfigOutputDisabled,
.timod = kFlexioTimerModeDual8BitBaudBit,
.timout = kFlexioTimerOutputOneNotAffectedByReset,
.timdec = kFlexioTimerDecSrcOnFlexIOClockShiftTimerOutput,
.timrst = kFlexioTimerResetNever,
.timdis = kFlexioTimerDisableOnTimerCompare,
.timena = kFlexioTimerEnableOnTriggerHigh,
.tstop = kFlexioTimerStopBitDisabled,
.tstart = kFlexioTimerStartBitDisabled,
.timcmp = (32 * 2 - 1) << 8 | (2 - 1), // 32 bits at 2 MHz
};
static flexio_shifter_config_t g_shifterConfig = {
/*FUNCTION****************************************************************
*
* Function Name: FLEXIO_I2C_HAL_ConfigMaster
* Description: Configure the flexio working as i2c master device.
*
*END*********************************************************************/
flexio_status_t FLEXIO_I2C_HAL_ConfigMaster(flexio_i2c_dev_t *devPtr,
const flexio_i2c_master_config_t *configPtr)
{
flexio_shifter_config_t mFlexioShfiterConfigStruct;
flexio_timer_config_t mFlexioTimerConfigStruct;
memset(&mFlexioShfiterConfigStruct, 0, sizeof(mFlexioShfiterConfigStruct));
memset(&mFlexioTimerConfigStruct, 0, sizeof(mFlexioTimerConfigStruct));
uint32_t timdiv = 0U, timcmp = 0U;
if ( (!devPtr) || (!configPtr) )
{
return kStatus_FLEXIO_InvalidArgument;
}
/* 1. Configure the shifter 0 for tx. */
mFlexioShfiterConfigStruct.timsel = devPtr->timerIdx[1];
mFlexioShfiterConfigStruct.timpol = kFlexioShifterTimerPolarityOnPositive;
mFlexioShfiterConfigStruct.pincfg = kFlexioPinConfigOpenDrainOrBidirection;
mFlexioShfiterConfigStruct.pinsel = devPtr->sdaPinIdx; /* Pin 0. */
mFlexioShfiterConfigStruct.pinpol = kFlexioPinActiveLow;
mFlexioShfiterConfigStruct.smode = kFlexioShifterModeTransmit; /* Tx. */
mFlexioShfiterConfigStruct.insrc = kFlexioShifterInputFromPin;
mFlexioShfiterConfigStruct.sstop = kFlexioShifterStopBitHigh; /* Check ACK Tx. */
mFlexioShfiterConfigStruct.sstart = kFlexioShifterStartBitLow; /* Start after low ACK. */
FLEXIO_HAL_ConfigureShifter(
devPtr->flexioBase, devPtr->shifterIdx[0], &mFlexioShfiterConfigStruct);
/* 2. Configure the shifter 1 for rx. */
mFlexioShfiterConfigStruct.timsel = devPtr->timerIdx[1];
mFlexioShfiterConfigStruct.timpol = kFlexioShifterTimerPolarityOnNegitive;
mFlexioShfiterConfigStruct.pincfg = kFlexioPinConfigOutputDisabled;
mFlexioShfiterConfigStruct.pinsel = devPtr->sdaPinIdx; /* Pin 0. */
mFlexioShfiterConfigStruct.pinpol = kFlexioPinActiveHigh; /*inverted or not*/
mFlexioShfiterConfigStruct.smode = kFlexioShifterModeReceive; /* Rx. */
mFlexioShfiterConfigStruct.insrc = kFlexioShifterInputFromPin;
mFlexioShfiterConfigStruct.sstop = kFlexioShifterStopBitLow; /* Check ACK Rx. */
mFlexioShfiterConfigStruct.sstart = kFlexioShifterStartBitDisabledLoadDataOnEnable; /* Do not check start Rx. */
FLEXIO_HAL_ConfigureShifter(
devPtr->flexioBase, devPtr->shifterIdx[1], &mFlexioShfiterConfigStruct);
/* 3. Configure the timer 0 for generating bit clock. */
mFlexioTimerConfigStruct.trgsel = FLEXIO_HAL_TIMER_TRIGGER_SEL_SHIFTnSTAT(devPtr->shifterIdx[0]); /* trigger from tx shifter. */
mFlexioTimerConfigStruct.trgpol = kFlexioTimerTriggerPolarityActiveLow;
mFlexioTimerConfigStruct.trgsrc = kFlexioTimerTriggerSourceInternal;
mFlexioTimerConfigStruct.pincfg = kFlexioPinConfigOpenDrainOrBidirection;
mFlexioTimerConfigStruct.pinsel = devPtr->sckPinIdx; /* Pin 1. */
mFlexioTimerConfigStruct.pinpol = kFlexioPinActiveHigh;
mFlexioTimerConfigStruct.timod = kFlexioTimerModeDual8BitBaudBit; /* To generate baudrate. */
mFlexioTimerConfigStruct.timout = kFlexioTimerOutputZeroNotAffectedByReset;
mFlexioTimerConfigStruct.timdec = kFlexioTimerDecSrcOnFlexIOClockShiftTimerOutput;
mFlexioTimerConfigStruct.timrst = kFlexioTimerResetOnTimerPinEqualToTimerOutput;
mFlexioTimerConfigStruct.timdis = kFlexioTimerDisableOnTimerCompare;
mFlexioTimerConfigStruct.timena = kFlexioTimerEnableOnTriggerHigh;
mFlexioTimerConfigStruct.tstop = kFlexioTimerStopBitEnableOnTimerDisable;
mFlexioTimerConfigStruct.tstart = kFlexioTimerStartBitEnabled;
/*
* Set TIMCMP[15:8] = (number of words x 18) + 1.
* Set TIMCMP[7:0] = (baud rate divider / 2) - 1.
*/
timdiv = configPtr->flexioBusClk / configPtr->baudrate;
timcmp = configPtr->xferWordCount * 18U + 1U;
timcmp <<= 8U;
timcmp |= timdiv / 2U - 1U;
mFlexioTimerConfigStruct.timcmp = timcmp;
FLEXIO_HAL_ConfigureTimer(
devPtr->flexioBase, devPtr->timerIdx[0], &mFlexioTimerConfigStruct);
/* 4. Configure the timer 1 for controlling shifters. */
mFlexioTimerConfigStruct.trgsel = FLEXIO_HAL_TIMER_TRIGGER_SEL_SHIFTnSTAT(devPtr->shifterIdx[0]); /* trigger from tx shifter. */
mFlexioTimerConfigStruct.trgpol = kFlexioTimerTriggerPolarityActiveLow;
mFlexioTimerConfigStruct.trgsrc = kFlexioTimerTriggerSourceInternal; /* trigger no sense here. */
mFlexioTimerConfigStruct.pincfg = kFlexioPinConfigOutputDisabled;
mFlexioTimerConfigStruct.pinsel = devPtr->sckPinIdx; /* Pin 1. */
mFlexioTimerConfigStruct.pinpol = kFlexioPinActiveLow;
mFlexioTimerConfigStruct.timod = kFlexioTimerModeSingle16Bit;
mFlexioTimerConfigStruct.timout = kFlexioTimerOutputOneNotAffectedByReset; /* no sense here. */
mFlexioTimerConfigStruct.timdec = kFlexioTimerDecSrcOnPinInputShiftPinInput;
mFlexioTimerConfigStruct.timrst = kFlexioTimerResetNever;
mFlexioTimerConfigStruct.timdis = kFlexioTimerDisableOnPreTimerDisable;
mFlexioTimerConfigStruct.timena = kFlexioTimerEnableOnPrevTimerEnable;
mFlexioTimerConfigStruct.tstop = kFlexioTimerStopBitEnableOnTimerCompare;
mFlexioTimerConfigStruct.tstart = kFlexioTimerStartBitEnabled;
/* Set TIMCMP[15:0] = (number of bits x 2) - 1 */
mFlexioTimerConfigStruct.timcmp = 8U * 2U - 1U;// change to 8 bit
FLEXIO_HAL_ConfigureTimer(
devPtr->flexioBase, devPtr->timerIdx[1], &mFlexioTimerConfigStruct);
return kStatus_FLEXIO_Success;
}
/*FUNCTION****************************************************************
*
* Function Name: FLEXIO_SPI_HAL_ConfigMaster
* Description: Configure the flexio working as spi master.
*
*END*********************************************************************/
flexio_status_t FLEXIO_SPI_HAL_ConfigMaster(flexio_spi_dev_t *devPtr,
const flexio_spi_master_config_t *configPtr)
{
flexio_shifter_config_t mFlexioShfiterConfigStruct;
flexio_timer_config_t mFlexioTimerConfigStruct;
memset(&mFlexioShfiterConfigStruct, 0, sizeof(mFlexioShfiterConfigStruct));
memset(&mFlexioTimerConfigStruct, 0, sizeof(mFlexioTimerConfigStruct));
uint32_t timdiv = 0U, timcmp = 0U;
if ( (!devPtr) || (!configPtr) )
{
return kStatus_FLEXIO_InvalidArgument;
}
/* 1. Configure shifter 0 for tx. */
if (configPtr->cphaOneEnable)
{
mFlexioShfiterConfigStruct.timsel = devPtr->timerIdx[0];
mFlexioShfiterConfigStruct.timpol = kFlexioShifterTimerPolarityOnPositive;
mFlexioShfiterConfigStruct.pincfg = kFlexioPinConfigOutput;
mFlexioShfiterConfigStruct.pinsel = devPtr->txPinIdx; /* MOSI */
mFlexioShfiterConfigStruct.pinpol = kFlexioPinActiveHigh;
mFlexioShfiterConfigStruct.smode = kFlexioShifterModeTransmit;
mFlexioShfiterConfigStruct.insrc = kFlexioShifterInputFromPin;
mFlexioShfiterConfigStruct.sstop = kFlexioShifterStopBitLow;
mFlexioShfiterConfigStruct.sstart = kFlexioShifterStartBitDisabledLoadDataOnShift;
}
else
{
mFlexioShfiterConfigStruct.timsel = devPtr->timerIdx[0];
mFlexioShfiterConfigStruct.timpol = kFlexioShifterTimerPolarityOnNegitive;
mFlexioShfiterConfigStruct.pincfg = kFlexioPinConfigOutput;
mFlexioShfiterConfigStruct.pinsel = devPtr->txPinIdx; /* MOSI */
mFlexioShfiterConfigStruct.pinpol = kFlexioPinActiveHigh;
mFlexioShfiterConfigStruct.smode = kFlexioShifterModeTransmit;
mFlexioShfiterConfigStruct.insrc = kFlexioShifterInputFromPin;
mFlexioShfiterConfigStruct.sstop = kFlexioShifterStopBitDisable;
mFlexioShfiterConfigStruct.sstart = kFlexioShifterStartBitDisabledLoadDataOnEnable;
}
FLEXIO_HAL_ConfigureShifter(
devPtr->flexioBase, devPtr->shifterIdx[0], &mFlexioShfiterConfigStruct);
/* 2. Configure shifter 1 for rx. */
if (configPtr->cphaOneEnable)
{
mFlexioShfiterConfigStruct.timsel = devPtr->timerIdx[0];
mFlexioShfiterConfigStruct.timpol = kFlexioShifterTimerPolarityOnNegitive;
mFlexioShfiterConfigStruct.pincfg = kFlexioPinConfigOutputDisabled;
mFlexioShfiterConfigStruct.pinsel = devPtr->rxPinIdx; /* MISO */
mFlexioShfiterConfigStruct.pinpol = kFlexioPinActiveHigh;
mFlexioShfiterConfigStruct.smode = kFlexioShifterModeReceive;
}
else
{
mFlexioShfiterConfigStruct.timsel = devPtr->timerIdx[0];
mFlexioShfiterConfigStruct.timpol = kFlexioShifterTimerPolarityOnPositive;
mFlexioShfiterConfigStruct.pincfg = kFlexioPinConfigOutputDisabled;
mFlexioShfiterConfigStruct.pinsel = devPtr->rxPinIdx; /* MISO */
mFlexioShfiterConfigStruct.pinpol = kFlexioPinActiveHigh;
mFlexioShfiterConfigStruct.smode = kFlexioShifterModeReceive;
}
mFlexioShfiterConfigStruct.insrc = kFlexioShifterInputFromPin;
mFlexioShfiterConfigStruct.sstop = kFlexioShifterStopBitDisable;
mFlexioShfiterConfigStruct.sstart = kFlexioShifterStartBitDisabledLoadDataOnEnable;
FLEXIO_HAL_ConfigureShifter(
devPtr->flexioBase, devPtr->shifterIdx[1], &mFlexioShfiterConfigStruct);
/* 3. Configure timer 1 for csn. */
mFlexioTimerConfigStruct.trgsel = FLEXIO_HAL_TIMER_TRIGGER_SEL_TIMn(devPtr->timerIdx[0]);
mFlexioTimerConfigStruct.trgpol = kFlexioTimerTriggerPolarityActiveHigh;
mFlexioTimerConfigStruct.trgsrc = kFlexioTimerTriggerSourceInternal;
mFlexioTimerConfigStruct.pincfg = kFlexioPinConfigOutput;
mFlexioTimerConfigStruct.pinsel = devPtr->csnPinIdx; /* CSn. */
mFlexioTimerConfigStruct.pinpol = kFlexioPinActiveLow;
mFlexioTimerConfigStruct.timod = kFlexioTimerModeSingle16Bit;
mFlexioTimerConfigStruct.timout = kFlexioTimerOutputOneNotAffectedByReset;
mFlexioTimerConfigStruct.timdec = kFlexioTimerDecSrcOnFlexIOClockShiftTimerOutput;
mFlexioTimerConfigStruct.timrst = kFlexioTimerResetNever;
mFlexioTimerConfigStruct.timdis = kFlexioTimerDisableOnPreTimerDisable;
mFlexioTimerConfigStruct.timena = kFlexioTimerEnableOnPrevTimerEnable;
mFlexioTimerConfigStruct.tstop = kFlexioTimerStopBitDisabled;
mFlexioTimerConfigStruct.tstart = kFlexioTimerStartBitDisabled;
mFlexioTimerConfigStruct.timcmp = 0xFFFFU;
FLEXIO_HAL_ConfigureTimer(
devPtr->flexioBase, devPtr->timerIdx[1], &mFlexioTimerConfigStruct);
/* 4. Configure timer 0 for sclk. */
mFlexioTimerConfigStruct.trgsel = FLEXIO_HAL_TIMER_TRIGGER_SEL_SHIFTnSTAT(devPtr->shifterIdx[0]);
mFlexioTimerConfigStruct.trgpol = kFlexioTimerTriggerPolarityActiveLow;
mFlexioTimerConfigStruct.trgsrc = kFlexioTimerTriggerSourceInternal;
mFlexioTimerConfigStruct.pincfg = kFlexioPinConfigOutput;
mFlexioTimerConfigStruct.pinsel = devPtr->sclkPinIdx; /* SCLK. */
mFlexioTimerConfigStruct.pinpol = kFlexioPinActiveHigh;
mFlexioTimerConfigStruct.timod = kFlexioTimerModeDual8BitBaudBit;
mFlexioTimerConfigStruct.timout = kFlexioTimerOutputZeroNotAffectedByReset;
mFlexioTimerConfigStruct.timdec = kFlexioTimerDecSrcOnFlexIOClockShiftTimerOutput;
mFlexioTimerConfigStruct.timrst = kFlexioTimerResetNever;
mFlexioTimerConfigStruct.timdis = kFlexioTimerDisableOnTimerCompare;
mFlexioTimerConfigStruct.timena = kFlexioTimerEnableOnTriggerHigh;
mFlexioTimerConfigStruct.tstop = kFlexioTimerStopBitEnableOnTimerDisable;
mFlexioTimerConfigStruct.tstart = kFlexioTimerStartBitEnabled;
timdiv = (configPtr->flexioBusClk) / (configPtr->baudrate);
timcmp = ( (configPtr->bitCount << 1U) - 1U ) << 8U;
timcmp |= ( (timdiv >> 1U) - 1U);
mFlexioTimerConfigStruct.timcmp = timcmp;
FLEXIO_HAL_ConfigureTimer(
devPtr->flexioBase, devPtr->timerIdx[0], &mFlexioTimerConfigStruct);
return kStatus_FLEXIO_Success;
}
