Dear All
Now I have question for TPS65950 ADCIN9 setting.
I think this ADCIN9 function enable for this resiter control only.
Resister : BB_CFG [4] bit
Function : BBCHEN -> "1"
But I can not read BKBAT Voltage .
Quesiton
Q1 : About ADCIN9 resiter setting , Is this only for enable fuction?
Q2 : If Read BKBAT Voltage , Dose need other resiter or Bit setting ??
Because of this phenoinon appear at MP stage.
Could you tell us Idea ?
Thanks and Regard
Jasper
Only BBCHEN=1 is needed to connect the backup battery to MADC.
After you have to configure the GPADC for a normal conversion
• Before starting a GP conversion, the host processor powers on the MADC by writing 1 to the
MADCON bit (CTRL1[0]).
• The host processor selects the channels for conversion by writing 1 to the corresponding bits of the
SW1SELECT_LSB and SW1SELECT_MSB registers.
You can also check if the MADC clock hasn't been stopped, please check GPBR1 register configuration when you run the conversion
regards
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Dear Alexis
Thank you very much!!
Jasper,
plese close the thread if answer is ok.
regards,
Alexis
Dear Quote
Thank you very much.
We fixed about this issues.