3.1.3 FRAM Data Logging Mode

This mode shows the FRAM data logging capabilities of the MSP430FR2433. After starting this mode, the LaunchPad wake up from LPM3.5 approximately every 5 seconds (indicated by short red LED1 blink) to log temperature values. Data are stored into a ring buffer located in the FRAM memory. When the ring buffer fills up to its capacity, the oldest temperature data is discarded and replaced with the newest data.

• Press the left button S1 to transfer all data stored inside the ring buffer to the PC.
• Press the right button S1 to clear all data and return to an empty ring buffer.
• The compute through power loss (CTPL) and nonvolatile storage (NVS) libraries from the FRAM Utilities are used in this demo to simplify the code to setup this simple data logging application.