//*****************************************************************************
//
//! @brief Set up the stimer.
//!
//! @param ui32STimerConfig is the value to load into the configuration reg.
//!
//! This function should be used to perform the initial set-up of the
//! stimer.
//!
//! @return The 32-bit current config of the STimer Config register
//
//*****************************************************************************
uint32_t
am_hal_stimer_config(uint32_t ui32STimerConfig)
{
uint32_t ui32CurrVal;
//
// Read the current config
//
ui32CurrVal = AM_REG(CTIMER, STCFG);
//
// Write our configuration value.
//
AM_REG(CTIMER, STCFG) = ui32STimerConfig;
//
// If all of the clock sources are not HFRC, disable LDO when sleeping if timers are enabled.
//
if ( (AM_BFR(CTIMER, STCFG, CLKSEL) == AM_REG_CTIMER_STCFG_CLKSEL_HFRC_DIV16) ||
(AM_BFR(CTIMER, STCFG, CLKSEL) == AM_REG_CTIMER_STCFG_CLKSEL_HFRC_DIV256) )
{
AM_BFW(PWRCTRL, MISCOPT, DIS_LDOLPMODE_TIMERS, 0);
}
else
{
AM_BFW(PWRCTRL, MISCOPT, DIS_LDOLPMODE_TIMERS, 1);
}
return ui32CurrVal;
}
//*****************************************************************************
//
//! @brief Disables the fault capture registers.
//!
//! This function disables the DCODEFAULTADDR and ICODEFAULTADDR registers.
//!
//! @return None
//
//*****************************************************************************
void
am_hal_mcuctrl_fault_capture_disable(void)
{
//
// Disable the Fault Capture registers.
//
AM_BFW(MCUCTRL, FAULTCAPTUREEN, ENABLE, 0);
}
//*****************************************************************************
//
//! @brief Start capturing data with the specified capture register.
//!
//! @param ui32CaptureNum is the Capture Register Number to read (0-3).
//! ui32GPIONumber is the pin number.
//! bPolarity: false (0) = Capture on low to high transition.
//! true (1) = Capture on high to low transition.
//!
//! Use this function to start capturing.
//!
//! @return None.
//
//*****************************************************************************
void
am_hal_stimer_capture_start(uint32_t ui32CaptureNum,
uint32_t ui32GPIONumber,
bool bPolarity)
{
uint32_t ui32CapCtrl;
if ( ui32GPIONumber > (AM_HAL_GPIO_MAX_PADS-1) )
{
return;
}
//
// Set the polarity and pin selection in the GPIO block.
//
switch (ui32CaptureNum)
{
case 0:
AM_BFW(GPIO, STMRCAP, STPOL0, bPolarity);
AM_BFW(GPIO, STMRCAP, STSEL0, ui32GPIONumber);
ui32CapCtrl = AM_REG_CTIMER_CAPTURE_CONTROL_CAPTURE_A_M;
break;
case 1:
AM_BFW(GPIO, STMRCAP, STPOL1, bPolarity);
AM_BFW(GPIO, STMRCAP, STSEL1, ui32GPIONumber);
ui32CapCtrl = AM_REG_CTIMER_CAPTURE_CONTROL_CAPTURE_B_M;
break;
case 2:
AM_BFW(GPIO, STMRCAP, STPOL2, bPolarity);
AM_BFW(GPIO, STMRCAP, STSEL2, ui32GPIONumber);
ui32CapCtrl = AM_REG_CTIMER_CAPTURE_CONTROL_CAPTURE_C_M;
break;
case 3:
AM_BFW(GPIO, STMRCAP, STPOL3, bPolarity);
AM_BFW(GPIO, STMRCAP, STSEL3, ui32GPIONumber);
ui32CapCtrl = AM_REG_CTIMER_CAPTURE_CONTROL_CAPTURE_D_M;
break;
default:
return; // error concealment.
}
//
// Enable it in the CTIMER Block
//
AM_REG(CTIMER, CAPTURE_CONTROL) |= ui32CapCtrl;
}
