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Fosc lowering in AK-ST7MC

jermakov
Associate II
Posted on January 19, 2007 at 08:02

Fosc lowering in AK-ST7MC

1 REPLY 1
jermakov
Associate II
Posted on May 17, 2011 at 10:13

Hello everybody,

As we know, the AK-ST7MC Development Kit uses 16MHz value for the MCU resonator.

Is it possible to lower this value down to 4 MHz (or 1MHz, or lower)?

What trouble may be expected on the lower frequency?

I am about to use the kit for the e-bike motor control, where mechanical revolutions frequency is not so high and doesn't achive 200 rpm (3Hz), so electrical frequency may maximally gets 20-30 Hz value.

Thus I hope, that I may decrease the Fosc larger with mind to save the power consumption.

What would be your opinion?

Thank you,

Alexander.