Unsigned int x = 5 // this variable lives in FRAM But, it’s almost as easy to use as RAM: #pragma PERSISTENT(x)
This allows the part to be shut off completely, while still preserving the contents of its memory. One secret this part has is its FRAM memory in lieu of traditional flash. Note that these parts are made on a smaller, leakier process, so they have worse power consumption figures than the other MSPs. These are great for running off a single AAA battery, and I’ve spotted it in several different active digitizers that accompany tablets computers.
Most MSP430s are 1.8 – 3.6V devices, though there are also specialized MSP430 parts that operate at extremely low voltages down to 0.9 volts.
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