Tool/software:
Hello E2E Experts,
Good day.
I designed a development board using the TMS320F2800157 chip. However, after applying 3.3V from the DC power supply and performing a test connection in CCS, it successfully displayed a message indicating a normal connection and loaded the program into the out file. But when attempting to output a signal from the GPIO, I observed significant noise in this signal. While troubleshooting to reduce this noise, I discovered noise on the DC link when connecting the power supply to my development board's power section.
I am curious why noise occurs on the DC link and how to eliminate it.
Additionally, I have attached the circuit diagram of my development board and the noise waveform.
DC LInk:
GPIO:
Design files:
Regards,
TICSC