Could you please help me for reading ADC samples and configuring the ADC driver in Atmel start?
1. What is the free running mode? As per Figure 45-6. ADC Timing for Free Running in 12-bit Resolution in datasheet, it will read samples continuously. When to use this? I want to read single-channel sampling /multiple channels scanning based on commands.
2. Positive input mux selection: We have 6 channels which will read the voltage externally. We want to take samples from all channels ( one by one channel and all channels at the same time like Scanning)
Which option we have to select for positive mux?
Also, we have referred the http://microchipdeveloper.com/at... example, light sensor is connected to AIN18. So they selected Positive input mux as AIN18. In our case we have 6 channels?
Negative input mux : we have selected as internal ground (for single ended) ? Is it correct ?
Is it possible to modify the positive input mux at runtime? because we have 6 channels, we have enable one by one and take samples.
3. The sampling rate depends on below formula,
RS = fCLK_ADC / ( nSAMPLING + nOFFCOMP + nDATA)
In this, can you explain offset compensation and One Conversion with Increased Sampling Time?
What is the use if I increased the sampling time length? I am aware that if offset compensation is selected then sampling time should be 0.
I am little bit confused where to use offset compensation and increasing sampling time length.
Thanks in advance.