Battery Service always returns a zero value

Osman Esen

Hi.

I'm currently trying to modify the SensorTag workspace in order to add a battery service, but the kit always returns a "0" value as a battery level to my Smartphone. From debugging, I can clearly see that the problem occurs in defining the "adc" in battservice.c file:

DCDC_SBIT = 0;
HalAdcSetReference( HAL_ADC_REF_125V);
adc = HalAdcRead( battServiceAdcCh, HAL_ADC_RESOLUTION_10 );
DCDC_SBIT = 1;

I'm using the "next statement" option in IAR while debugging, and it somehow avoids turning on the DC/DC converter, so the program simply avoids the line: DCDC_SBIT = 1, and "adc" becomes equal to 0 afterwards.

What might be the problem here ?.

Thanks in advance

over 9 years ago

0 Tim C over 9 years ago

TI__Mastermind 34660 points

Hello. it sounds like you're strange debugging behavior may be due to optimizations. Do you see the same behavior if you compile with optimizations set to none in the preprocessor options?

0 Osman Esen over 9 years ago in reply to Tim C

Intellectual 740 points

Hi again.

I have just debugged it right now and suddenly it is able to hit line and turning on the DC/DC converter (I don't know why it avoided before, since the optimization setting is set to NONE by default). The adc value is still "0" though, and I don't know how to fix that, since I just copied the hal_adc.c file from the CC2540EB folder and did not make any modifications. Does anyone succeed on implementing a "working" battery service for the SensorTag ?.