From a979a3a2c41ef3fe19ec154616460c755ed04a10 Mon Sep 17 00:00:00 2001
From: Stanley Huang <stanleyhuangyc@gmail.com>
Date: Thu, 1 Oct 2015 13:04:15 +1000
Subject: Add GPS date validation
---
megalogger/megalogger.ino | 13 ++++++++-----
1 file changed, 8 insertions(+), 5 deletions(-)
(limited to 'megalogger')
diff --git a/megalogger/megalogger.ino b/megalogger/megalogger.ino
index 3d8f326..03cc2a9 100644
--- a/megalogger/megalogger.ino
+++ b/megalogger/megalogger.ino
@@ -56,7 +56,7 @@ static uint32_t startTime = 0;
static uint16_t lastSpeed = 0;
static uint32_t lastSpeedTime = 0;
static int gpsSpeed = -1;
-static uint16_t gpsDate = 0;
+static uint32_t gpsDate = 0;
static uint32_t obdTime = 0;
static uint8_t obdCount = 0;
@@ -378,10 +378,13 @@ void processGPS()
logger.dataTime = millis();
gps.get_datetime(&date, &time, 0);
- if ((uint16_t)date != gpsDate) {
- // log date only if it's changed
- logger.logData(PID_GPS_DATE, (int32_t)date);
- gpsDate = (uint16_t)date;
+ if (date != gpsDate) {
+ // log date only if it's changed and valid
+ int year = date % 100;
+ if (date < 1000000 && date >= 10000 && year >= 15 && (gpsDate == 0 || year - (gpsDate % 100) <= 1)) {
+ logger.logData(PID_GPS_DATE, (int32_t)date);
+ gpsDate = date;
+ }
}
logger.logData(PID_GPS_TIME, (int32_t)time);
--
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