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Tweak the RTC. It seems to not crash anymore. Doesn't mean it works though.

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This commit is contained in:
Vincent Barrilliot 2023-11-03 23:20:56 +01:00
parent 2693a33046
commit b175ddb83f
1 changed files with 15 additions and 17 deletions
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32
src/dev/rtc.c
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@ -10,7 +10,7 @@
#include "simpleio.h"
#include "timers.h"
static long rtc_ticks;
static unsigned long rtc_ticks;
/*
* Interrupt handler for the real time clock
@ -18,8 +18,8 @@ static long rtc_ticks;
void rtc_handle_int() {
unsigned char flags;
/* Periodic interrupt: increment the ticks counter */
flags = *RTC_FLAGS;
flags = *RTC_FLAGS; /* Acknowledge the interrupt */
rtc_ticks++;
}
@ -31,30 +31,28 @@ void rtc_init() {
unsigned char rates;
unsigned char enables;
log(LOG_TRACE, "rtc_init");
TRACE("rtc_init");
int_disable(INT_RTC);
/* Make sure the RTC is on */
*RTC_CTRL = (*RTC_CTRL & 0x07) | RTC_STOP;
*RTC_CTRL = RTC_STOP;
/*
* For the moment: Every so often, the RTC interrupt gets acknowledged
* without clearing the flags. Until I can sort out why, I will use
* the SOF A interrupt as a surrogate for the RTC jiffie timer
*/
#if !(MODEL == MODEL_FOENIX_C256U || MODEL == MODEL_FOENIX_C256U_PLUS || MODEL == MODEL_FOENIX_FMX)
// /* Set the periodic interrupt to 15 millisecs */
// *RTC_RATES = RTC_RATE_15ms;
//
// int_register(INT_RTC, rtc_handle_int);
//
// /* Enable the periodic interrupt */
// flags = *RTC_FLAGS;
// *RTC_ENABLES = RTC_PIE;
// rtc_ticks = 0;
//
// int_enable(INT_RTC);
*RTC_RATES = RTC_RATE_15ms;
int_register(INT_RTC, rtc_handle_int);
rtc_ticks = 0;
/* Enable the periodic interrupt */
rtc_enable_ticks();
#endif
}
/*
@ -64,7 +62,7 @@ void rtc_enable_ticks() {
/* Set the periodic interrupt to 15 millisecs */
*RTC_RATES = RTC_RATE_15ms;
unsigned char flags = *RTC_FLAGS;
unsigned char flags = *RTC_FLAGS; /* Acknowledge any previous interrupt before we start. */
*RTC_ENABLES = RTC_PIE;