|
The MSP432 is a mixed-signal microcontroller family from Texas Instruments. It is based on a ARM Cortex-M4F CPU, and extends their MSP430 line, with a larger address space for code and data, and faster integer and floating point calculation than the MSP430. Like the MSP430, it has a number of built-in peripheral devices, and is designed for low power requirements. ==Comparison to MSP430/MSP430X== Modern embedded computing requires large amounts of data and code, and often calls for floating point calculations. The MSP430's 16-bit architecture was already once extended to 20 bits (MSP430X) to accommodate those needs, but the resulting 1MB limit is still too small, and the instruction set extensions slow down the code execution. Furthermore, MSP430 architecture does not include a hardware floating point unit. IEEE754 floating point computations are emulated in software〔(MSP430 FP math library )〕 using integer arithmetic on its native 16-bit data, and are quite slow.〔(See section 9, FFT Benchmark )〕 The ARM Cortex-M4F architecture used in the MSP432 line allows up to 4GB of unified program/data/peripheral memory, and has a built-in single precision IEEE754-compatible Floating Point Unit. The peripherals in MSP432 are similar to those in MSP430, and there is a built-in ROM driver library that facilitates software reuse.〔(MSP432 Platform Porting Guide )〕 Differences from MSP430 include: * redesigned interrupt mechanism, using Nested Vectored Interrupt Controller (NVIC) * improved resolution (14 bit) and speed (1MSPS) ADC * redesigned uDMA engine * ARM-specific SysTick and Timer32 timer/counter blocks 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「TI MSP432」の詳細全文を読む スポンサード リンク
|