Tuesday, 19 November 2019

stm32 - The NUCLEO F411RE Works with float point?


I need a MCU to works with Wifi and Floating point for PID application. In the later I acquire a Wifi expansion board, but I wants know if the STM32 NUCLEO FR11RE works with a Floating Point. I don't find this information in web. http://www.st.com/en/evaluation-tools/nucleo-f411re.html



Answer



In the NUCLEO-F411RE datasheet table 2 states that this particular model has STM32F411RET6. Datasheet of STM32F411RET6 clearly says:



The STM32F411XC/XE devices are based on the high-performance ARM® Cortex® -M4 32- bit RISC core operating at a frequency of up to 100 MHz. The Cortex®-M4 core features a Floating point unit (FPU) single precision which supports all ARM single-precision dataprocessing instructions and data types.




It is a common Cortex-M4F. It supports only single precision floats (ie. float in C, not double). Some tips.


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