HI, I AM TRYING TO RUN A ROUTINE WITH THE RTC MODULE OF AN KE02P64. I LEARNED HOW TO DO IT ON A C9S08JM60, BUT IT SEEMS TO BE A LITTLE BIT DIFFERENT. THE EXAMPLE ON THE REFERENCE MANUAL IS:
/* Initialize the elapsed time counters */
Seconds = 0;
Minutes = 0;
Hours = 0;
Days=0;
/* Configure RTC to interrupt every 1 second from OSC (32.768KHz) clock source */
RTC_MOD = 511; // overflow every 32 times
RTC_SC = RTC_SC_RTCPS_MASK; // external 32768 clock selected with 1/64 predivider.
RTC_SC = RTC_SC_RTIF_MASK | RTC_SC_RTIE_MASK; // interrupt cleared and enabled
/**********************************************************************
Function Name : RTC_ISR
Notes : Interrupt service routine for RTC module.
**********************************************************************/
void RTC_ISR(void)
{
/* Clears the interrupt flag, RTIF, and interrupt request */
RTC_SC |= RTC_SC_RTIF_MASK;
/* RTC interrupts every 1 Second */
Seconds++;
/* 60 seconds in a minute */
if (Seconds > 59)
{
Minutes++;
Seconds = 0;
}
/* 60 minutes in an hour */
if (Minutes > 59)
{
Hours++;
Minutes = 0;
}
/* 24 hours in a day */
if (Hours > 23)
{
Days ++;
Hours = 0;
}}
I UNDERSTAND THE INITIALIZATION BUT I DO NOT KNOW HOW TO DEFINE THAT (IN THIS PARTICULAR CASE) THE void RTC_ISR(void) ROUTINE RUNS WHEN A RTC INTERRUP OCCURS.
I REMEMBER IN THE C9S08JM60 I DEFINE THE VECTOR FOR THE INTERRUPT. SHOULD I DO THE SAME IN THIS ONE?
ENGLISH IS NOT MY FIRST LANGUAGE, THANK YOU FOR UNDESTAND.
Hi,
Customer could refer KE02 RTC example code from attached demo, or find from CodeWarrior MCU V10.6 installation default path:
C:\Freescale\CW MCU v10.6\MCU\CodeWarrior_Examples\Kinetis_Examples\KE\build\cw\ke02\RTC_demo
It re-define the RTC interrupt vector table to point to RTC interrupt service routine at <isr.h> file.
/*!
* @brief define interrupt service routine for different vectors.
*
*/
#undef VECTOR_036
#define VECTOR_036 RTC_Isr /*!< Vector 36 points to RTC interrupt service routine */
More detailed info, please check attached code.
Wish it helps.
best regards
Ma Hui
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