Anti-tamper Techniques to Thwart Attacks on Smart Meters— Detecting magnetic tampering using hall-effect sensors: TIDA-00839 Magnetic Tamper Detection Reference Design Features
Anti-tamper Techniques to Thwart Attacks on Smart Meters— Detecting magnetic tampering using hall-effect sensors: Magnetic Tamper Detection Testing
For anti-tampering, it is common to try to detect the presence of a strong magnet. In this section, we will cover the use of hall sensors for low-power detection of strong magnetic fields in three dimensions. Details on our magnetic tamper detection reference design, TIDA-00839, will be provided as well as some of the design considerations that were kept in mind when creating this reference design.
In this section, we will cover how to harden a meter against these magnetic tamper attacks by using shunts for current sensors. For poly-phase implementations, I will go over how to use isolated delta sigma modulators to add the necessary isolation to use shunt current sensors and create magnetically immune poly-phase energy measurement systems. The TIDA-00601 and TIDA-01094 reference designs, which show how to implement a poly-phase isolated shunt measurement system, will be discussed as well as the associated AMC1304 high-side power supplies used in these designs.
How many times have you said, “I would like to prototype an idea with TI silicon but I can not get software resources" or “I don’t know how to prototype/program.”
This training shows you how to get started prototyping on TI solutions with minimal or no programming, including the following tasks:
These videos provide understanding of the fundamental functions used for rapid prototyping on TI solutions with minimal or no programming, including the following:
- Implementing necessary prototyping functions such clocks/GPIO, Read A/D, I2C/SMBus, etc.
- Seamless interface of various analog EVMs for customer “proof of concept”
- Standalone UI – Button, (GP Input - GPIO), LCD Display (“Hello”), Music, Serial Interface (Putty, Echo)