Hello NXP Community,
I am working with an S32K344-based custom PCB and experiencing some issues with ADC readings. I have configured three ADC channels (ADC1(ADC0_P4), ADC2(ADC0_P3), and ADC3(ADC0_P0)) under ADC0Group1. For testing purposes, all three channels are connected to the same voltage source. I intended to compare the consistency of the readings across multiple ADC channels.
However, I am encountering an issue where only ADC1 provides stable data readings, while ADC2 and ADC3 show significant fluctuations despite being configured identically and sampling the same voltage source. I have attached relevant screenshots from FreeMASTER showing the fluctuating readings and my Simulink configuration showing the setup.
I also tried adding more channels to ADC0Group1. Every ADC after ADC1 fluctuates a lot.
Attachments:
- FreeMASTER output showing the readings
- S32CT configuration of the ADC setup
- Simulink File
I am wondering if there is something I am missing in the configuration or if there might be a known issue with such a setup. Any advice or suggestions would be greatly appreciated!
Thank you!
Connor
