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MRebo.1
MRebo.1
Associate II
June 29, 2021
Question

Problem with LoRaWAN and DAC in the same time.

  • June 29, 2021
  • 5 replies
  • 2121 views

Hi guys. When I program the device with LoRaWAN and DAC with pin extern (PA10), I saw in oscilloscope that DAC stay high every when has uplink. Like the image:

0693W00000BcMkHQAV.jpg 

Does anyone have any idea why this happens? Thanks!

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5 replies

Tesla DeLorean
Tesla DeLorean
Guru
June 29, 2021

Perhaps some issue with the grounding? Any obvious shorts or points of connectivity?

Is this some custom board? Is there are schematic for it?

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MRebo.1
MRebo.1Author
Associate II
July 1, 2021

I use the DAC for the COMP. The DAC Pin is not connected to anything, I just keep measuring it to see the behavior of my firmware... I can't send the schematic :(

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