TI MSP432

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TI MSP432 is a family of mixed-signal microcontrollers from Texas Instruments. It uses a 32-bit ARM Cortex-M4F core, delivering faster math, a larger memory space, and a built-in floating-point unit compared with the older 16-bit MSP430. It keeps many MSP430-style peripherals and includes a ROM driver library to reuse software, all while aiming for low power consumption.

In 2021 TI announced MSP432 was discontinued and no new MSP432 products would be released. TI then introduced a simpler line called MSPM0 based on the Cortex-M0+ core.

Why MSP432? The MSP430’s 16-bit design limited memory and floating-point performance. The Cortex-M4F in MSP432 provides up to 4 GB of memory space and hardware floating-point calculations, making floating-point work faster and enabling larger programs. Peripherals are similar to MSP430, but MSP432 generally uses less power and is cheaper, though it has fewer high-end peripherals like very wide timers or quadrature encoders.

In 2017 TI expanded the MSP432 family with higher-performance parts that add Ethernet, USB, CAN, and SPI. That same year TI rebranded the Tiva TM4C129 as MSP432 E-Series, adding cryptographic hardware (AES, SHA/MD5, DES).

Development boards: The MSP432 LaunchPad works with MSP430 booster packs, including Wi‑Fi modules. It includes a USB debugging interface. Some boards offer 2 MB flash, 256 KB RAM and a 320-segment LCD. There are larger, more capable boards with onboard Ethernet, USB OTG, and JTAG/Spy-Bi-Wire support.