uint8_t SPI_receiveData(uint32_t moduleInstance)
{
if (is_A_Module(moduleInstance))
{
return EUSCI_A_SPI_receiveData(moduleInstance);
} else
{
return EUSCI_B_SPI_receiveData(moduleInstance);
}
}
rtc_t drv_rtc_read_time_date(void)
{
// Create an array to hold the RTC data when read in from the chip.
uint8_t TimeDate[7]; //second,minute,hour,null,day,month,year
// Enable the RTC chip on the SPI bus.
// bsp_pin_digital_write(&pins.rtc_cs, ENABLED);
// When the SPI port is available, select the starting address to read.
while (EUSCI_B_SPI_isBusy(EUSCI_B0_BASE))
{
;
}
EUSCI_B_SPI_transmitData(EUSCI_B0_BASE, 0x00);
// Create an iterator.
uint8_t i;
// Loop through the RTC registers and read out the date and time.
for ( i = 0; i <= 6; i++)
{
// When the SPI port is available, shift out don't care bits to shift
// in the register we want to read.
while (EUSCI_B_SPI_isBusy(EUSCI_B0_BASE))
{
;
}
EUSCI_B_SPI_transmitData(EUSCI_B0_BASE, 0x00);
// Once the transaction is complete retrieve the value shifted in.
while (EUSCI_B_SPI_isBusy(EUSCI_B0_BASE))
{
;
}
TimeDate[i] = EUSCI_B_SPI_receiveData(EUSCI_B0_BASE);
}
// Deselect the RTC chip.
// bsp_pin_digital_write(&pins.rtc_cs, DISABLED);
// Create a RTC struct and stuff it with the converted bytes from the array.
rtc_t current_time;
drv_rtc_convert_array_to_struct(TimeDate, ¤t_time);
// Return rtc struct
return (current_time);
}
