/*---------------------------------------------------------------------------*
* Routine: RTC_PCF8563_Get
*---------------------------------------------------------------------------*
* Description:
* Get the current RTC clock reading.
* Inputs:
* void *aW -- Workspace
* T_uezTimeDate *aTimeDate -- Time and date returned
* Outputs:
* T_uezError -- Error code
*---------------------------------------------------------------------------*/
T_uezError RTC_PCF8563_Get(void *aWorkspace, T_uezTimeDate *aTimeDate)
{
T_uezError error;
T_RTC_PCF8563_Workspace *p = (T_RTC_PCF8563_Workspace *)aWorkspace;
I2C_Request r;
TUInt8 data[16];
TUInt8 reg0[1] = {0x00};
r.iAddr = PCF8563_I2C_ADDR;
r.iSpeed = PCF8563_I2C_SPEED;
r.iWriteData = reg0;
r.iWriteLength = 1;
r.iWriteTimeout = UEZ_TIMEOUT_INFINITE;
r.iReadData = data;
r.iReadLength = 16;
r.iReadTimeout = UEZ_TIMEOUT_INFINITE; // wait until bus ready
// Allow only one transfer at a time
UEZSemaphoreGrab(p->iSem, UEZ_TIMEOUT_INFINITE);
error = (*p->iI2C)->ProcessRequest(p->iI2C, &r);
if (!error) {
aTimeDate->iTime.iSecond = IBCDToDecimal(data[2] & 0x7F);
aTimeDate->iTime.iMinute = IBCDToDecimal(data[3] & 0x7F);
aTimeDate->iTime.iHour = IBCDToDecimal(data[4] & 0x3F);
aTimeDate->iDate.iMonth = IBCDToDecimal(data[7] & 0x1F);
aTimeDate->iDate.iDay = IBCDToDecimal(data[5] & 0x3F);
aTimeDate->iDate.iYear = 2000+IBCDToDecimal(data[8] & 0xFF);
}
UEZSemaphoreRelease(p->iSem);
return error;
}
/*---------------------------------------------------------------------------*
* Routine: RX62N_RTC_Get
*---------------------------------------------------------------------------*
* Description:
* Get the current date and time.
* Inputs:
* void *aW -- RTC workspace
* T_uezTimeDate *aTimeDate -- Time and date of the current time
* Outputs:
* T_uezError -- Error code
*---------------------------------------------------------------------------*/
T_uezError RX62N_RTC_Get(void *aWorkspace, T_uezTimeDate *aTimeDate)
{
// Read the time and date, but check to see if it is just
// changing. If it just changes, then read again. We don't
// want to be caught reading between 11:59:59 and 0:00:00.
do {
// Clear the carry flag
ICU.IR[IR_RTC_CUP].BIT.IR = 0;
aTimeDate->iTime.iSecond = IBCDToDecimal(RTC.RSECCNT.BYTE);
aTimeDate->iTime.iMinute = IBCDToDecimal(RTC.RMINCNT.BYTE);
aTimeDate->iTime.iHour = IBCDToDecimal(RTC.RHRCNT.BYTE);
aTimeDate->iDate.iDay = IBCDToDecimal(RTC.RDAYCNT.BYTE);
aTimeDate->iDate.iMonth = IBCDToDecimal(RTC.RMONCNT.BYTE);
aTimeDate->iDate.iYear = IBCDToDecimal(RTC.RYRCNT.WORD);
} while (ICU.IR[IR_RTC_CUP].BIT.IR);
// Now extract the consolidated registers into the structure
// in a more useful form.
return UEZ_ERROR_NONE;
}
