Merge pull request #561 from cyberman54/development
timesync.cpp: adjust lora time calibration
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3fe7299ff6
@ -117,14 +117,19 @@ void process_timesync_req(void *taskparameter) {
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// average time offset over all collected diffs
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// average time offset over all collected diffs
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time_offset_ms /= TIME_SYNC_SAMPLES;
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time_offset_ms /= TIME_SYNC_SAMPLES;
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// --------- do we need this? ---------
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// calculate time offset with millisecond precision using LMIC's time base,
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// calculate time offset with millisecond precision using LMIC's time base,
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// since we use LMIC's ostime_t txEnd as tx timestamp.
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// since we use LMIC's ostime_t txEnd as tx timestamp.
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// Also apply calibration const to compensate processing time.
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//
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time_offset_ms += milliseconds(osticks2ms(os_getTime())) -
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// time_offset_ms += milliseconds(osticks2ms(os_getTime())) -
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milliseconds(millis()) + milliseconds(TIME_SYNC_FIXUP);
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// milliseconds(millis());
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// --------- not sure -----------------
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// calculate absolute time in UTC epoch: convert to whole seconds, round to
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// Apply calibration const to compensate processing time.
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// ceil, and calculate fraction milliseconds
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time_offset_ms += milliseconds(TIME_SYNC_FIXUP);
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// calculate absolute time in UTC epoch: convert to whole seconds, round
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// to ceil, and calculate fraction milliseconds
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time_to_set = (uint32_t)(time_offset_ms.count() / 1000) + 1;
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time_to_set = (uint32_t)(time_offset_ms.count() / 1000) + 1;
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// calculate fraction milliseconds
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// calculate fraction milliseconds
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time_to_set_fraction_msec = (uint16_t)(time_offset_ms.count() % 1000);
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time_to_set_fraction_msec = (uint16_t)(time_offset_ms.count() % 1000);
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