santh92
Junior Member level 1
Hello to all,
I am using MSP430F5438A microcontroller....
In that i am using 12-bit ADC(ADC12_A) with internal reference voltage...
By using the Reference module i have enabled the following registers..
REFCTL0 = REFMSTR + REFON + REFVSEL_3 + REFTCOFF + REFOUT;
I am sure in that the configuration for 2.5v....
But, when i am checking with input DC signal, my sample value of ADC become saturate at 1.69V of input DC.
And i am unable to measure the amplitude of internal reference voltage at PIN P5.0,
P5SEL = P5SEL | 0x01; // ENABLE P5.0 ADC A8
P5DIR = P5DIR | 0x01;
If there is any specific way to enable it... please let me know...
Thank you.
I am using MSP430F5438A microcontroller....
In that i am using 12-bit ADC(ADC12_A) with internal reference voltage...
By using the Reference module i have enabled the following registers..
REFCTL0 = REFMSTR + REFON + REFVSEL_3 + REFTCOFF + REFOUT;
I am sure in that the configuration for 2.5v....
But, when i am checking with input DC signal, my sample value of ADC become saturate at 1.69V of input DC.
And i am unable to measure the amplitude of internal reference voltage at PIN P5.0,
P5SEL = P5SEL | 0x01; // ENABLE P5.0 ADC A8
P5DIR = P5DIR | 0x01;
If there is any specific way to enable it... please let me know...
Thank you.