TL32 ETC, TL32 Datasheet - Page 4

• Manufacturer Part Number: TL32
• Description: Real Time System Testing MIT 16.070 Lecture 32
• Manufacturer: ETC

Q: What if your system randomly misses data from a sensor?
A: Time tag your system data and use it only if the time tag has been
hperry
5/4/01
updated since the last time it was used.
Navigation
Sensors
Sensor
GPS data with time tag is written to shared memory
When other tasks come to read that data out of shared memory,
they can discard the data if the new time tag = old time tag.
Some Exception Handling Methods
Tasks
GPS
Sensor data
pools
Lat, lon, alt,
time tag
Memory
Shared
Lat, lon, alt,
time tag
Data consuming
tasks