Hi, I apologize for my delay in getting back to you. [quote userid="626512" url="~/support/microcontrollers/c2000-microcontrollers-group/c2000/f/c2000-microcontrollers-forum/1501742/tms320f28335-tms320f28335"]I want to read the amplitude of 5Vrms voltage on ADCA0 of the dsp[/quote] What is the magnitude of the sine wave at the ADC input? It must be scaled down since 5Vrms sine wave would be outside of ADC input range. [quote userid="626512" url="~/support/microcontrollers/c2000-microcontrollers-group/c2000/f/c2000-microcontrollers-forum/1501742/tms320f28335-tms320f28335"]I'm new to using this dsp and i haven't figured out the issue . my settings for the ADC are as shown below [/quote] Did you start with one of the examples in [C2000WARE]/device_support/f2833x? What is your sampling frequency (set by PWM in your code)? [quote userid="626512" url="~/support/microcontrollers/c2000-microcontrollers-group/c2000/f/c2000-microcontrollers-forum/1501742/tms320f28335-tms320f28335"]The above are my settings on the graphs properties. Any help i would appreciate it.[/quote] The graph setting are a problem. The graph will automatically update at a very slow rate, you need to use a buffer to properly display your values. This example will show you how to set up the graph with a buffer: https://dev.ti.com/tirex/explore/node?node=A__AX4u1JCujNz1VnDNN1Wl9g__C28X-ACADEMY__1sbHxUB__LATEST Best Regards, Ben Collier
↧