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There isn't really a good way to calibrate this RTC adafruit/circuitpython#1046

This commit is contained in:
Nick Moore 2019-02-12 13:36:24 +11:00
parent 6206fa9a82
commit 6afe23d0b0
1 changed files with 0 additions and 12 deletions
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12
ports/nrf/common-hal/rtc/RTC.c
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@ -42,7 +42,6 @@
#define RTC_CLOCK_HZ (8) #define RTC_CLOCK_HZ (8)
volatile static uint32_t rtc_offset = 0; volatile static uint32_t rtc_offset = 0;
int8_t rtc_calibration = 0;
const nrfx_rtc_t rtc_instance = NRFX_RTC_INSTANCE(0); const nrfx_rtc_t rtc_instance = NRFX_RTC_INSTANCE(0);
@ -80,14 +79,3 @@ void common_hal_rtc_set_time(timeutils_struct_time_t *tm) {
); );
nrfx_rtc_counter_clear(&rtc_instance); nrfx_rtc_counter_clear(&rtc_instance);
} }
// A positive value speeds up the clock by removing clock cycles.
int common_hal_rtc_get_calibration(void) {
return rtc_calibration;
}
void common_hal_rtc_set_calibration(int calibration) {
if (calibration > 127 || calibration < -127)
mp_raise_ValueError(translate("calibration value out of range +/-127"));
rtc_calibration = calibration;
}