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lpc1768 adc power down

Question asked by lpcware Employee on Jun 15, 2016
Latest reply on Nov 8, 2016 by Bill Brown
Content originally posted in LPCWare by unknownobj on Mon Jun 06 02:03:06 MST 2016
hi, all

i am working on lpc1768 adc now, and the code to do the polling of adc works.
and then i want to use the power down of adc to minimize  the current,
so i set the PDN bit(ADC_PowerDownCmd)  before the adc function and clear it after adc.
i fount that the ADC_ChannelGetStatus function returns zero after ADC_StartCmd.

why?  how can i let adc go to power down mode and repower it before adc function?

any help is appreciated.