We would like to introduce you a multifunctional company Nuvoton debugging tool - NU-BRIDGE
The functionality of the set:
Х Analysis of the I²C and SPI buses (supports Master and Slave modes);
Х Generation / receiving UART interface signals;
Х Generate / receive PWM signals;
Х Available function ADC.
Communication with the computer through the USB interface
A detailed description of the device: Nu-Bridge_User_Manual_EN_Rev1.00_review_20160616.pdf