描述
This CerTIfied Reference Design is a 16-bit loop-powered, or 2-wire, transmitter using the DAC8551 and XTR116. The design includes a protection circuit that provides immunity to the IEC61000-4 t ...
stareware 库的u***lib.h文件的注释中出现的
//! The standard USB request header as defined in section 9.3 of the USB 2.0
//! specification.
和// Definitions related to USB descriptors (sections 9.5 & 9 ...