What upgrades are there for cortex-M4 and cortex-M4F?

Jacktang

What upgrades are there for cortex-M4 and cortex-M4F? [Copy link]

From the above figure, we can see that the cortex-M4 has a Floating-Point Unit (FPU) and DSP more than the previous generation cortex-M3 .

1. DSP must be supported in cortex-M4.
2. FPU is an optional functional module, which means chip companies can customize IP to ARM according to their own needs. The one
that includes FPU is cortex-M4F; the one that does not include FPU is cortex-M4.