We are running a survey to help us improve the experience for all of our members. If you see the survey appear, please take the time to tell us about your experience if you can.
I am working on ADS1241 24 bit ADC. My ADC counts are correct in debugging mode but not in normal mode with or without breakpoints.I am using Keil uvision5 and STLink Debugger.
How, exactly, are they "wrong" ?
How, exactly, do you determine that they are "wrong" ?
Have you checked if the input to the ADC is actually changing ?
Have you checked if the raw output from the ADC is changing ?
etc, etc, etc, ...
The Vref for ADC is 1.23 V. I have given 0.822 V as input to ADC. The counts in debugging mode are AA83F4 (0.819 V upon conversion)and the counts in normal mode are E73CFA (1.111 V upon conversion).
Yes, the counts are changing on changing the input.
I am reading the counts from ADC through SPI and transferring to PC using UART.
You didn't answer the questions:
How, exactly, do you determine that they are "wrong"? - ie, how do you view the counts?
Have you checked if the input to the ADC is actually changing? - have you measured it independently? Be sure that you are measuring exactly what the ADC sees. Use a scope, not just a meter.
Have you checked if the raw output from the ADC is changing? - have you looked at the SPI data independently?
We can't debug this remotely for you; we can't see your setup - you're going to have to dig into it yourself!