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3 years, 5 months ago.
is there a library to change CPU frequency of F469NI?
The LPC1768 has a library where one can alter the CPU frequency (used for coremark study), see https://developer.mbed.org/users/no2chem/notebook/mbed-clock-control--benchmarks/
Is there a way to alter the F469NI CPU frequency under program-control?
Using mbed-dev and hacking PLLN in stm32f4xx.c, here are some coremarkish numbers
MHz /sec ma 24 55 87 48 110 94 72 166 101 96 221 108 120 277 115 168 388 129 180 415 134
You can subtract about 40ma from LPC1768 current for Ethernet PHY