I wrote the code as below: MPU is ESP32 devkit-C and AD converter is MCP3208. I want to use HSPI. However, I cannot observe any signals from SCLK and MOSI. (The oscilloscope is made of Tektronix) Is there something wrong?? I can't find it. #define ADC_CS 25 #define MISO 12 #define MOSI 13 #define SC...