Tool/software:
Hi Team,
My customer is trying to monitor voltage and current using the PC software but it’s not working.
I’ve asked him to enable current and voltage sense and try playing music rather than just 50hz tone but still nothing. DMM is showing 1vRMS.
Any suggestions?
Hi Ernest,
to view IV-sense in the verification window(ROM Mode) the customer should;
1) visit the tuning and audio processing page, this will automatically configure the device
2) Then open the verification window, select voltage sense and current sense in I2S mode
3) press start and play audio
this should be recording voltage and current data.
It looks like some data is being recorded. One thing to note is that if the default characterization data is being used then the output could be greatly limited by the smart amp algorithm. if the customer is using a speaker they should ideally characterize the speaker, or atleast measure the speaker Re with a DMM and enter that value into PPC3. this should help with the low level of the audio
also, to ensure that the IV is recording properly, Can we try recording I and V in ROM mode (Simple amp mode) using a recording software such as audacity https://www.audacityteam.org/
1) go to device control page
2) in the upper right of the window select the drop down which says "tuning mode" and select "ROM Mode"
3) scroll down and find the "TDM" panel, select "Transmitter" then "Configure Slots"
4) set the transmitter as below, and press "save"
5) in audacity make sure the "Audio setup" has the TI USB device selected for playback and record
6) in audacity select generate -> Tone and then enter the parameters like 1000Hz and 0.1Amplitude.
7) Press Shift+R and the tone should be heard at the speaker and the IV data is recorded
Regards,
Arthur
