MSP430F2132: MSP430, 10-bit ADC: sending output to MSP430 register.

Prajwal Dhatwalia

Part Number: MSP430F2132

Hi,

I'm using MSP430F2132 with an inbuilt 10-bit ADC. I'm coding on IAR workbench & using Proteus 8 Pro for simulating the circuit & displaying it on the LCD Screen.

The ADC is rounding off the result of the A/D conversion and sending it to ADC10MEM which is holding it as an integer value.

Is it possible to get the ADC output before rounding & store it in any one of the MSP430 registers in float data type? If yes, how?

over 8 years ago

0 Dennis Eichmann over 8 years ago

Guru 74080 points

What do you mean by rounding? The ADC does not round anything - it outputs a value from 0 to 1023.

0 Prajwal Dhatwalia over 8 years ago in reply to Dennis Eichmann

Prodigy 20 points

The ADC10MEM register is holding integer values like 891, but not floating point values like 891.43 or 890.72 (which round off to 891).

I want to know if there is a way to fetch these kind of floating point values from ADC (before being rounded off & sent to ADC10MEM register).

0 Ilmars over 8 years ago in reply to Prajwal Dhatwalia

Guru 46710 points

Prajwal Dhatwalia said:
I want to know if there is a way to fetch these kind of floating point values from ADC (before being rounded off & sent to ADC10MEM register).

There's no float value inside any ADC. ADCs measure integer values, they do not round floating point to integer.

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MSP430F2132: MSP430, 10-bit ADC: sending output to MSP430 register.