change VDDA

[yangyong]

In ADC_SAR_Seq  component，The Vref  i choose is VDDA.    The value of vref is 3.3V. How can I change it to 5V.

[PandaS · Accepted solution]

Hi @yangyong ,

The Vref parameter displays the reference voltage value that is used for the SAR ADC reference. If the internal reference is selected with the Vref select parameter, this becomes a fixed value. If an internal reference such as VDDA or VDDA/2 is selected, the value is derived from the DWR System Editor Vdda parameter. In cases when Vref is unknown, such as using an external reference (external to the PSoC or Component), the value may be entered by the user. Are you using an external reference for your application? And also tell us the PSoC4 device you are using.

Thanks and regards

Sobhit