void DRV8301_writeData(DRV8301_Handle handle, DRV_SPI_8301_Vars_t *Spi_8301_Vars)
{
DRV8301_RegName_e drvRegName;
uint16_t drvDataNew;
if(Spi_8301_Vars->SndCmd)
{
// Update Control Register 1
drvRegName = DRV8301_RegName_Control_1;
drvDataNew = Spi_8301_Vars->Ctrl_Reg_1.DRV8301_CURRENT | \
Spi_8301_Vars->Ctrl_Reg_1.DRV8301_RESET | \
Spi_8301_Vars->Ctrl_Reg_1.PWM_MODE | \
Spi_8301_Vars->Ctrl_Reg_1.OC_MODE | \
Spi_8301_Vars->Ctrl_Reg_1.OC_ADJ_SET;
DRV8301_writeSpi(handle,drvRegName,drvDataNew);
// Update Control Register 2
drvRegName = DRV8301_RegName_Control_2;
drvDataNew = Spi_8301_Vars->Ctrl_Reg_2.OCTW_SET | \
Spi_8301_Vars->Ctrl_Reg_2.GAIN | \
Spi_8301_Vars->Ctrl_Reg_2.DC_CAL_CH1p2 | \
Spi_8301_Vars->Ctrl_Reg_2.OC_TOFF;
DRV8301_writeSpi(handle,drvRegName,drvDataNew);
Spi_8301_Vars->SndCmd = false;
}
return;
} // end of DRV8301_writeData() function
void DRV8301_setupSpi()
{
unsigned int drvDataNew;
unsigned int n;
// Update Control Register 1
drvDataNew = (drv8301.peakCurrent | \
drv8301.resetStatus | \
drv8301.pwmMode | \
drv8301.OverCurrentMode | \
drv8301.OverCurrentAdjust);
DRV8301_writeSpi(drv8301.bits.ControlRegister1,drvDataNew);
// Update Control Register 2
drvDataNew = (drv8301.tempWarning | drv8301.gain);
DRV8301_writeSpi(drv8301.bits.ControlRegister2,drvDataNew);
drv8301.SndCmd = false;
drv8301.RcvCmd = false;
// Wait for the DRV8301 registers to update
for(n=0;n<100;n++)
asm(" NOP");
// Update Status Register 1
drvDataNew = DRV8301_readSpi(drv8301.bits.StatusRegister1);
drv8301.fault = (drvDataNew & drv8301.bits.fault);
drv8301.OverTempShutdown = (drvDataNew & (1 << 7));
drv8301.OverTempWarning = (drvDataNew & (1 << 6));
// Update Status Register 2
drvDataNew = DRV8301_readSpi(drv8301.bits.StatusRegister2);
drv8301.deviceID = (drvDataNew & (15 << 0));
// Update Control Register 1
drvDataNew = DRV8301_readSpi(drv8301.bits.ControlRegister2);
drv8301.peakCurrent = (drvDataNew & (3 << 0));
drv8301.resetStatus = (drvDataNew & 1 << 2);
drv8301.pwmMode = (drvDataNew & drv8301.bits.PwmMode);
drv8301.OverCurrentMode = (drvDataNew & drv8301.bits.OverCurrentMode);
drv8301.OverCurrentAdjust = (drvDataNew & drv8301.bits.OverCurrentAdjust);
// Update Control Register 2
drvDataNew = DRV8301_readSpi(drv8301.bits.ControlRegister2);
drv8301.tempWarning = (drvDataNew & drv8301.bits.tempWarning);
drv8301.gain = (drvDataNew & (3 << 2));
return;
}
void DRV8301_setDcCalMode(DRV8301_Handle handle,const DRV8301_ShuntAmpNumber_e ampNumber,const DRV8301_DcCalMode_e mode)
{
uint16_t data;
// read data
data = DRV8301_readSpi(handle,DRV8301_RegName_Control_2);
// clear the bits
if(ampNumber == DRV8301_ShuntAmpNumber_1)
{
data &= (~DRV8301_CTRL2_DC_CAL_1_BITS);
}
else if(ampNumber == DRV8301_ShuntAmpNumber_2)
{
data &= (~DRV8301_CTRL2_DC_CAL_2_BITS);
}
// set the bits
data |= mode;
// write the data
DRV8301_writeSpi(handle,DRV8301_RegName_Control_2,data);
return;
} // end of DRV8301_setDcCalMode() function
void DRV8301_writeData()
{
unsigned int drvData;
if(drv8301.SndCmd)
{
// Update Control Register 1
drvData = drv8301.peakCurrent | \
drv8301.resetStatus | \
drv8301.pwmMode | \
drv8301.OverCurrentMode | \
drv8301.OverCurrentAdjust;
DRV8301_writeSpi(drv8301.bits.ControlRegister1,drvData);
// Update Control Register 2
drvData = drv8301.tempWarning | drv8301.gain;
DRV8301_writeSpi(drv8301.bits.ControlRegister2,drvData);
drv8301.SndCmd = false;
}
return;
}
void DRV8301_reset()
{
unsigned int data;
// read data
data = DRV8301_readSpi(drv8301.bits.ControlRegister1);
// set the bits
data |= (1 << 2);
// write the data
DRV8301_writeSpi(drv8301.bits.ControlRegister1,data);
return;
} // end of DRV8301_reset() function
void DRV8301_reset(DRV8301_Handle handle)
{
uint16_t data;
// read data
data = DRV8301_readSpi(handle,DRV8301_RegName_Control_1);
// set the bits
data |= DRV8301_CTRL1_GATE_RESET_BITS;
// write the data
DRV8301_writeSpi(handle,DRV8301_RegName_Control_1,data);
return;
} // end of DRV8301_reset() function
void DRV8301_setShuntAmpGain(DRV8301_Handle handle,const DRV8301_ShuntAmpGain_e gain)
{
uint16_t data;
// read data
data = DRV8301_readSpi(handle,DRV8301_RegName_Control_2);
// clear the bits
data &= (~DRV8301_CTRL2_GAIN_BITS);
// set the bits
data |= gain;
// write the data
DRV8301_writeSpi(handle,DRV8301_RegName_Control_2,data);
return;
} // end of DRV8301_setShuntAmpGain() function
void DRV8301_setPwmMode(DRV8301_Handle handle,const DRV8301_PwmMode_e mode)
{
uint16_t data;
// read data
data = DRV8301_readSpi(handle,DRV8301_RegName_Control_1);
// clear the bits
data &= (~DRV8301_CTRL1_PWM_MODE_BITS);
// set the bits
data |= mode;
// write the data
DRV8301_writeSpi(handle,DRV8301_RegName_Control_1,data);
return;
} // end of DRV8301_setPwmMode() function
void DRV8301_setPeakCurrent(DRV8301_Handle handle,const DRV8301_PeakCurrent_e peakCurrent)
{
uint16_t data;
// read data
data = DRV8301_readSpi(handle,DRV8301_RegName_Control_1);
// clear the bits
data &= (~DRV8301_CTRL1_GATE_CURRENT_BITS);
// set the bits
data |= peakCurrent;
// write the data
DRV8301_writeSpi(handle,DRV8301_RegName_Control_1,data);
return;
} // end of DRV8301_setPeakCurrent() function
void DRV8301_setOcTwMode(DRV8301_Handle handle,const DRV8301_OcTwMode_e mode)
{
uint16_t data;
// read data
data = DRV8301_readSpi(handle,DRV8301_RegName_Control_2);
// clear the bits
data &= (~DRV8301_CTRL2_OCTW_SET_BITS);
// set the bits
data |= mode;
// write the data
DRV8301_writeSpi(handle,DRV8301_RegName_Control_2,data);
return;
} // end of DRV8301_setOcTwMode() function
void DRV8301_setOcLevel(DRV8301_Handle handle,const DRV8301_VdsLevel_e VdsLevel)
{
uint16_t data;
// read data
data = DRV8301_readSpi(handle,DRV8301_RegName_Control_1);
// clear the bits
data &= (~DRV8301_CTRL1_OC_ADJ_SET_BITS);
// set the bits
data |= VdsLevel;
// write the data
DRV8301_writeSpi(handle,DRV8301_RegName_Control_1,data);
return;
} // end of DRV8301_setOcLevel() function
void DRV8301_setupSpi(DRV8301_Handle handle, DRV_SPI_8301_Vars_t *Spi_8301_Vars)
{
DRV8301_RegName_e drvRegName;
uint16_t drvDataNew;
// Why impose hardcoded values?
// Defaults should be device defaults or application level specified.
// Setting other hardcoded here is just confusing!
#if 0
// Update Control Register 1
drvRegName = DRV8301_RegName_Control_1;
drvDataNew = (DRV8301_PeakCurrent_0p25_A | \
DRV8301_Reset_Normal | \
DRV8301_PwmMode_Six_Inputs | \
DRV8301_OcMode_CurrentLimit | \
DRV8301_VdsLevel_0p730_V);
DRV8301_writeSpi(handle,drvRegName,drvDataNew);
// Update Control Register 2
drvRegName = DRV8301_RegName_Control_2;
drvDataNew = (DRV8301_OcTwMode_Both | \
DRV8301_ShuntAmpGain_10VpV | \
DRV8301_DcCalMode_Ch1_Load | \
DRV8301_DcCalMode_Ch2_Load | \
DRV8301_OcOffTimeMode_Normal);
DRV8301_writeSpi(handle,drvRegName,drvDataNew);
#endif
Spi_8301_Vars->SndCmd = false;
Spi_8301_Vars->RcvCmd = false;
// Wait for the DRV8301 registers to update
osDelay(1);
// Update Status Register 1
drvRegName = DRV8301_RegName_Status_1;
drvDataNew = DRV8301_readSpi(handle,drvRegName);
Spi_8301_Vars->Stat_Reg_1.FAULT = (bool)(drvDataNew & (uint16_t)DRV8301_STATUS1_FAULT_BITS);
Spi_8301_Vars->Stat_Reg_1.GVDD_UV = (bool)(drvDataNew & (uint16_t)DRV8301_STATUS1_GVDD_UV_BITS);
Spi_8301_Vars->Stat_Reg_1.PVDD_UV = (bool)(drvDataNew & (uint16_t)DRV8301_STATUS1_PVDD_UV_BITS);
Spi_8301_Vars->Stat_Reg_1.OTSD = (bool)(drvDataNew & (uint16_t)DRV8301_STATUS1_OTSD_BITS);
Spi_8301_Vars->Stat_Reg_1.OTW = (bool)(drvDataNew & (uint16_t)DRV8301_STATUS1_OTW_BITS);
Spi_8301_Vars->Stat_Reg_1.FETHA_OC = (bool)(drvDataNew & (uint16_t)DRV8301_STATUS1_FETHA_OC_BITS);
Spi_8301_Vars->Stat_Reg_1.FETLA_OC = (bool)(drvDataNew & (uint16_t)DRV8301_STATUS1_FETLA_OC_BITS);
Spi_8301_Vars->Stat_Reg_1.FETHB_OC = (bool)(drvDataNew & (uint16_t)DRV8301_STATUS1_FETHB_OC_BITS);
Spi_8301_Vars->Stat_Reg_1.FETLB_OC = (bool)(drvDataNew & (uint16_t)DRV8301_STATUS1_FETLB_OC_BITS);
Spi_8301_Vars->Stat_Reg_1.FETHC_OC = (bool)(drvDataNew & (uint16_t)DRV8301_STATUS1_FETHC_OC_BITS);
Spi_8301_Vars->Stat_Reg_1.FETLC_OC = (bool)(drvDataNew & (uint16_t)DRV8301_STATUS1_FETLC_OC_BITS);
// Update Status Register 2
drvRegName = DRV8301_RegName_Status_2;
drvDataNew = DRV8301_readSpi(handle,drvRegName);
Spi_8301_Vars->Stat_Reg_2.GVDD_OV = (bool)(drvDataNew & (uint16_t)DRV8301_STATUS2_GVDD_OV_BITS);
Spi_8301_Vars->Stat_Reg_2.DeviceID = (uint16_t)(drvDataNew & (uint16_t)DRV8301_STATUS2_ID_BITS);
// Update Control Register 1
drvRegName = DRV8301_RegName_Control_1;
drvDataNew = DRV8301_readSpi(handle,drvRegName);
Spi_8301_Vars->Ctrl_Reg_1.DRV8301_CURRENT = (DRV8301_PeakCurrent_e)(drvDataNew & (uint16_t)DRV8301_CTRL1_GATE_CURRENT_BITS);
Spi_8301_Vars->Ctrl_Reg_1.DRV8301_RESET = (DRV8301_Reset_e)(drvDataNew & (uint16_t)DRV8301_CTRL1_GATE_RESET_BITS);
Spi_8301_Vars->Ctrl_Reg_1.PWM_MODE = (DRV8301_PwmMode_e)(drvDataNew & (uint16_t)DRV8301_CTRL1_PWM_MODE_BITS);
Spi_8301_Vars->Ctrl_Reg_1.OC_MODE = (DRV8301_OcMode_e)(drvDataNew & (uint16_t)DRV8301_CTRL1_OC_MODE_BITS);
Spi_8301_Vars->Ctrl_Reg_1.OC_ADJ_SET = (DRV8301_VdsLevel_e)(drvDataNew & (uint16_t)DRV8301_CTRL1_OC_ADJ_SET_BITS);
// Update Control Register 2
drvRegName = DRV8301_RegName_Control_2;
drvDataNew = DRV8301_readSpi(handle,drvRegName);
Spi_8301_Vars->Ctrl_Reg_2.OCTW_SET = (DRV8301_OcTwMode_e)(drvDataNew & (uint16_t)DRV8301_CTRL2_OCTW_SET_BITS);
Spi_8301_Vars->Ctrl_Reg_2.GAIN = (DRV8301_ShuntAmpGain_e)(drvDataNew & (uint16_t)DRV8301_CTRL2_GAIN_BITS);
Spi_8301_Vars->Ctrl_Reg_2.DC_CAL_CH1p2 = (DRV8301_DcCalMode_e)(drvDataNew & (uint16_t)(DRV8301_CTRL2_DC_CAL_1_BITS | DRV8301_CTRL2_DC_CAL_2_BITS));
Spi_8301_Vars->Ctrl_Reg_2.OC_TOFF = (DRV8301_OcOffTimeMode_e)(drvDataNew & (uint16_t)DRV8301_CTRL2_OC_TOFF_BITS);
return;
}
void DRV8301_setupSpi(DRV8301_Handle handle, DRV_SPI_8301_Vars_t *Spi_8301_Vars)
{
DRV8301_RegName_e drvRegName;
uint16_t drvDataNew;
uint16_t n;
// Update Control Register 1
drvRegName = DRV8301_RegName_Control_1;
drvDataNew = (DRV8301_PeakCurrent_0p25_A | \
DRV8301_Reset_Normal | \
DRV8301_PwmMode_Six_Inputs | \
DRV8301_OcMode_CurrentLimit | \
DRV8301_VdsLevel_0p730_V);
DRV8301_writeSpi(handle,drvRegName,drvDataNew);
// Update Control Register 2
drvRegName = DRV8301_RegName_Control_2;
drvDataNew = (DRV8301_OcTwMode_Both | \
DRV8301_ShuntAmpGain_10VpV | \
DRV8301_DcCalMode_Ch1_Load | \
DRV8301_DcCalMode_Ch2_Load | \
DRV8301_OcOffTimeMode_Normal);
DRV8301_writeSpi(handle,drvRegName,drvDataNew);
Spi_8301_Vars->SndCmd = false;
Spi_8301_Vars->RcvCmd = false;
// Wait for the DRV8301 registers to update
for(n=0;n<100;n++)
asm(" NOP");
// Update Status Register 1
drvRegName = DRV8301_RegName_Status_1;
drvDataNew = DRV8301_readSpi(handle,drvRegName);
Spi_8301_Vars->Stat_Reg_1.FAULT = (bool)(drvDataNew & (uint16_t)DRV8301_STATUS1_FAULT_BITS);
Spi_8301_Vars->Stat_Reg_1.GVDD_UV = (bool)(drvDataNew & (uint16_t)DRV8301_STATUS1_GVDD_UV_BITS);
Spi_8301_Vars->Stat_Reg_1.PVDD_UV = (bool)(drvDataNew & (uint16_t)DRV8301_STATUS1_PVDD_UV_BITS);
Spi_8301_Vars->Stat_Reg_1.OTSD = (bool)(drvDataNew & (uint16_t)DRV8301_STATUS1_OTSD_BITS);
Spi_8301_Vars->Stat_Reg_1.OTW = (bool)(drvDataNew & (uint16_t)DRV8301_STATUS1_OTW_BITS);
Spi_8301_Vars->Stat_Reg_1.FETHA_OC = (bool)(drvDataNew & (uint16_t)DRV8301_STATUS1_FETHA_OC_BITS);
Spi_8301_Vars->Stat_Reg_1.FETLA_OC = (bool)(drvDataNew & (uint16_t)DRV8301_STATUS1_FETLA_OC_BITS);
Spi_8301_Vars->Stat_Reg_1.FETHB_OC = (bool)(drvDataNew & (uint16_t)DRV8301_STATUS1_FETHB_OC_BITS);
Spi_8301_Vars->Stat_Reg_1.FETLB_OC = (bool)(drvDataNew & (uint16_t)DRV8301_STATUS1_FETLB_OC_BITS);
Spi_8301_Vars->Stat_Reg_1.FETHC_OC = (bool)(drvDataNew & (uint16_t)DRV8301_STATUS1_FETHC_OC_BITS);
Spi_8301_Vars->Stat_Reg_1.FETLC_OC = (bool)(drvDataNew & (uint16_t)DRV8301_STATUS1_FETLC_OC_BITS);
// Update Status Register 2
drvRegName = DRV8301_RegName_Status_2;
drvDataNew = DRV8301_readSpi(handle,drvRegName);
Spi_8301_Vars->Stat_Reg_2.GVDD_OV = (bool)(drvDataNew & (uint16_t)DRV8301_STATUS2_GVDD_OV_BITS);
Spi_8301_Vars->Stat_Reg_2.DeviceID = (uint16_t)(drvDataNew & (uint16_t)DRV8301_STATUS2_ID_BITS);
// Update Control Register 1
drvRegName = DRV8301_RegName_Control_1;
drvDataNew = DRV8301_readSpi(handle,drvRegName);
Spi_8301_Vars->Ctrl_Reg_1.DRV8301_CURRENT = (DRV8301_PeakCurrent_e)(drvDataNew & (uint16_t)DRV8301_CTRL1_GATE_CURRENT_BITS);
Spi_8301_Vars->Ctrl_Reg_1.DRV8301_RESET = (DRV8301_Reset_e)(drvDataNew & (uint16_t)DRV8301_CTRL1_GATE_RESET_BITS);
Spi_8301_Vars->Ctrl_Reg_1.PWM_MODE = (DRV8301_PwmMode_e)(drvDataNew & (uint16_t)DRV8301_CTRL1_PWM_MODE_BITS);
Spi_8301_Vars->Ctrl_Reg_1.OC_MODE = (DRV8301_OcMode_e)(drvDataNew & (uint16_t)DRV8301_CTRL1_OC_MODE_BITS);
Spi_8301_Vars->Ctrl_Reg_1.OC_ADJ_SET = (DRV8301_VdsLevel_e)(drvDataNew & (uint16_t)DRV8301_CTRL1_OC_ADJ_SET_BITS);
// Update Control Register 2
drvRegName = DRV8301_RegName_Control_2;
drvDataNew = DRV8301_readSpi(handle,drvRegName);
Spi_8301_Vars->Ctrl_Reg_2.OCTW_SET = (DRV8301_OcTwMode_e)(drvDataNew & (uint16_t)DRV8301_CTRL2_OCTW_SET_BITS);
Spi_8301_Vars->Ctrl_Reg_2.GAIN = (DRV8301_ShuntAmpGain_e)(drvDataNew & (uint16_t)DRV8301_CTRL2_GAIN_BITS);
Spi_8301_Vars->Ctrl_Reg_2.DC_CAL_CH1p2 = (DRV8301_DcCalMode_e)(drvDataNew & (uint16_t)(DRV8301_CTRL2_DC_CAL_1_BITS | DRV8301_CTRL2_DC_CAL_2_BITS));
Spi_8301_Vars->Ctrl_Reg_2.OC_TOFF = (DRV8301_OcOffTimeMode_e)(drvDataNew & (uint16_t)DRV8301_CTRL2_OC_TOFF_BITS);
return;
}