Multiple ADC channel readings

sreejithmenon — Tue, 20 Feb 2018 23:41:43 GMT

I am using a MK22FN512 processor ( k22f family). My application requires me to monitor lot of sensors and I need to keep track of about 10 channels.But I guess K22 has 2 ADC modules with two channels each ( A and B) and only two sets of SC1 and Result registers.So if I use PDB to trigger ther modules max I can do is 4 channels. After that I will have to change the adc channels which are mapped by using channelconfig API before the next trigger to get the read the next set of sensores?

Is there a better way of doing it.In short I need to read about 10 ADC channels using k22f.I have some wiggle room for the rate at which these sensors are updated.( mostly used for monitoring and not control)

Re: Multiple ADC channel readings

Robin_Shen — Thu, 22 Feb 2018 02:40:57 GMT

There is an application note AN4590 using DMA to emulate ADC flexible scan mode and AN4590SW is the related software.

Wish it helps!

Best Regards,

Robin

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topic Multiple ADC channel readings in Kinetis Microcontrollers

Multiple ADC channel readings

Re: Multiple ADC channel readings