Tool/software:
Dear Texas instruments,
we are using the TPS65921 Power management and USB single chip , as a usb device.
We have noticed that sometimes the TPS is not working properly. We have sampled the data lines using an Oscilloscope and observed that there's an infinite stream of jkjkjkjk on the lines . Apparently , looks like as if the TPS generates a clock signal on both data lines which is matching the bit of the FS USB (12Mbps).
We know that this stream comes out from the TPS because we have disconnected it from the Host and sampled it with scope again .
Do you familiar with such behavior and its causes?
Thank you very much,
Eli
