Hi Shim, There are many possibilities. You will first need to check if your configuration is correct or not. The next thing is to check if any of the alarms are triggered. We can determine more. it is hard to narrow down the exact cause based on your brief description. You can try out the example configuration files in the GUI directory as the starting point. C:\Program Files (x86)\Texas Instruments\DAC348x\EVM Configuration File Released\ DAC3484 There are various apps notes on the DAC3484 website that you can refer to as well -Kang
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