/**
* @brief Changes the clock mode of a peripheral.
*
* @param[in] n index of the @p PCTL register
* @param[in] pctl new value for the @p PCTL register
*
* @notapi
*/
void halSPCSetPeripheralClockMode(uint32_t n, uint32_t pctl) {
uint32_t mode;
ME.PCTL[n].R = pctl;
mode = ME.MCTL.B.TARGET_MODE;
ME.MCTL.R = SPC5_ME_MCTL_MODE(mode) | SPC5_ME_MCTL_KEY;
ME.MCTL.R = SPC5_ME_MCTL_MODE(mode) | SPC5_ME_MCTL_KEY_INV;
}
/**
* @brief Switches the system to the specified run mode.
*
* @param[in] mode one of the possible run modes
*
* @return The operation status.
* @retval OSAL_SUCCESS if the switch operation has been completed.
* @retval OSAL_FAILED if the switch operation failed.
*/
bool halSPCSetRunMode(spc5_runmode_t mode) {
/* Clearing status register bits I_IMODE(4) and I_IMTC(1).*/
ME.IS.R = 5;
/* Starts a transition process.*/
ME.MCTL.R = SPC5_ME_MCTL_MODE(mode) | SPC5_ME_MCTL_KEY;
ME.MCTL.R = SPC5_ME_MCTL_MODE(mode) | SPC5_ME_MCTL_KEY_INV;
/* Waits for the mode switch or an error condition.*/
while (TRUE) {
uint32_t r = ME.IS.R;
if (r & 1)
return OSAL_SUCCESS;
if (r & 4)
return OSAL_FAILED;
}
}
/**
* @brief Switches the system to the specified run mode.
*
* @param[in] mode one of the possible run modes
*
* @return The operation status.
* @retval CH_SUCCESS if the switch operation has been completed.
* @retval CH_FAILED if the switch operation failed.
*/
bool_t halSPCSetRunMode(spc5_runmode_t mode) {
/* Starts a transition process.*/
ME.MCTL.R = SPC5_ME_MCTL_MODE(mode) | SPC5_ME_MCTL_KEY;
ME.MCTL.R = SPC5_ME_MCTL_MODE(mode) | SPC5_ME_MCTL_KEY_INV;
/* Waits the transition process to start.*/
while (!ME.GS.B.S_MTRANS)
;
/* Waits the transition process to end.*/
while (ME.GS.B.S_MTRANS)
;
/* Verifies that the mode has been effectively switched.*/
if (ME.GS.B.S_CURRENTMODE != mode)
return CH_FAILED;
return CH_SUCCESS;
}