does mbed have floating point unit

Topic last updated 20 Feb 2012, by user yiyi li. 1 reply
user yiyi li
20 Feb 2012

Hey guys, just a simple question. Does mbed has floating point unit? Couldn't find the answer in data sheet. Thanks:)

Replies

user Igor Skochinsky
20 Feb 2012

No, the Cortex-M3 core does not have an FPU. The mbed compiler has all the necessary routines to emulate floating point so you should not have any issues using floats in your program, but if you need speed you should look into fixed point or DSP (see e.g. here).

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