3 results about "Asynchronous serial interface" patented technology

The application discloses a kind of intelligent fusion terminal multistage high-precision time keeping and time keeping method, comprising: establishing soft clock reference in first processor;Data interaction is carried out between second processor and the first processor via asynchronous serial interface, and the time data corresponding to the data interaction process is obtained;Based on the time data, the asymmetric delay of physical communication link is compensated, and the random scheduling jitter on the second processor side is filtered out, and the clock deviation amount of the second processor relative to the soft clock reference is calculated;Based on the clock deviation amount, the system clock of the second processor is smoothly corrected.The application reduces the physical asymmetric error of cross-chip serial communication and random system scheduling interference, and realizes the monotone increasing and high-precision synchronization of terminal system clock under the premise of reducing underlying event omission.

A data transmission chip and an electronic device are provided, and belong to the field of electronic technologies. A high-speed asynchronous serial interface is configured to: receive a first signal from the one or two signal lines, wherein the first signal carries at least one low-speed signal; and transmit the at least one low-speed signal to a corresponding at least one low-speed interface, wherein a data transmission rate of the high-speed serial interface is higher than a data transmission rate of the at least one low-speed interface.

The invention relates to the technical field of simulation testing of communication equipment, in particular to a satellite-borne dual-mode multi-serial-port communication testing system. According to the technical scheme, the system comprises a core main control module which adopts a multi-serial-port MCU controller and is provided with at least two equipment serial ports and a monitoring interface; hardware working parameters and a software communication protocol of the device serial port can be independently set, and asynchronous serial interface requirements of different external devices can be met. The method supports independent configuration of various hardware parameters and protocols, adapts to test requirements of different satellite load equipment, does not need to depend on real external equipment, reduces test cost, can comprehensively verify error processing logic of satellite-borne master control through a dynamic error making function, improves system reliability, runs different protocols in parallel through multiple serial ports, shortens test period, and improves test efficiency. The method is suitable for verification of a complex multi-device cooperation scene, a real-time statistics function provides detailed error type distribution and performance indexes, and data support is provided for optimizing master control software.