MK10DX128VLH7 ADC issue

marknorton — Wed, 25 Jan 2023 21:13:32 GMT

I have some code running on an MK10DX128VLH5 processor without issues. We had supply chain issues and swapped to MK10DX128VLH7. I am having a problem with pin 12 (ADC0_DM3 adc channel 21). The readings are all over the place. On the VLH5 all is good. I am also using pins 11, 10, and 9 without an issue. The VLH7 differs in that it has ADC1 as well. On that particular pin (12) I used ADC1_DM3 (adc channel 19) and the readings are good. So the same pin, just different ADC and channel. Is there some errata that is not published or I didn't see.

Re: MK10DX128VLH7 ADC issue

vicentegomez — Fri, 27 Jan 2023 23:49:59 GMT

there are some erratas on the next link

https://www.nxp.com/products/processors-and-microcontrollers/arm-microcontrollers/general-purpose-mcus/k-series-arm-cortex-m4/k1x-mainstream/kinetis-k10-72-mhz-mixed-signal-integration-microcontrollers-mcus-based-on-arm-cortex-m4-core:K10_72?fpsp=1#documentation

and those are all of them

what kind of problem do you have?

what happens if you add some time between the measurements?

Have a good day.

topic MK10DX128VLH7 ADC issue in Kinetis Microcontrollers

MK10DX128VLH7 ADC issue

Re: MK10DX128VLH7 ADC issue