msp430G3203 slow clock

Avi W

Other Parts Discussed in Thread: MSP430G2302

Hello,

Is there a way to configure MSP430G3203 to use slow clock 32-kHz based without crystal, based on internal counters (while going to LPM3).
In we are looking for a low cost + low power solution.

Regards.

over 10 years ago

0 old_cow_yellow over 10 years ago

Guru 58965 points

MSP430G3202?

0 Dennis Eichmann over 10 years ago

Guru 74080 points

Hi Avi!

I guess you mean the MSP430G2302 processor? If you do not want to use an external crystal, then you could use the internal VLO oscillator which runs at about 12 kHz typical. The lowest DCO setting will still result in > 60 kHz clock.

Dennis

0 Avi W over 10 years ago in reply to old_cow_yellow

Expert 1345 points

Typo.. thank you :)

0 Avi W over 10 years ago in reply to Dennis Eichmann

Expert 1345 points

Thank you, it was a typo I've fixed talking about msp430g3203.
Is there a way to avoid the extra cost for the external crystal?
Is there a clock that doesn't go to sleep in LPM3 that I don't know about that can be used to count slow events or wake up after 2 seconds?

0 Dennis Eichmann over 10 years ago in reply to Avi W

Guru 74080 points

Avi W said:
Is there a clock that doesn't go to sleep in LPM3

ACLK sourced from the VLO still works in LPM3.

Dennis

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msp430G3203 slow clock