What processor does Yutu use?

The main control of Yutu patrol is the so-called "integrated electronics" subsystem, and its core is based on Atmel AT697F chip. 697 is a SPARC V8 compatible processor re-implemented by ESA in VHDL language, code-named Leon2. According to the LGPL protocol, the source code of the design is made public. Of course, China people downloaded it smoothly, and several manufacturers successfully produced so-called domestic processors. Individual manufacturers have cleverly modified some original designs, and many places have also made mistakes. High-frequency signals are easily disturbed, and the impact of various charged particles in space will cause serious bit flip problems, so spacecraft generally use low-frequency processors. SPARC is an open source processor, its design and architecture are completely open, and it complies with LGPL specification, so it is widely used. Of course, there are PPC and MIPS, that is, they all use relatively low frequencies for anti-interference. Yutu is the first lunar rover in China. 201165438 2003+1October 26th, the Bureau of Science, Technology and Industry for National Defense announced that the lunar rover Chang 'e III was named Yutu, with a design quality of 140 kg. With solar energy as energy source, it can withstand the vacuum on the surface of the moon and minus 180 degrees. The lunar rover has the ability of climbing and surmounting obstacles, and is equipped with scientific detection instruments such as panorama camera, infrared imaging spectrometer and lunar radar. 20 13 On February 2nd, 13, xichang satellite launch center successfully put the Chang 'e-3 probe consisting of a lander and a Yutu lunar rover into orbit. 65438+February 65438+May, "Jade Rabbit" successfully reached the surface of the moon. On April 1 day, 2004, 2065438, Yutu's design life was full: it was 20 meters away from the lander and could not move. On September 6, 20 14, the "Yutu" lunar rover entered the tenth working day and served for 7 months. On February 20 16, China released the moon image taken by "Jade Rabbit". On the night of July 3, 2065438, Kloc-0, the lunar rover Yutu overfulfilled the task and stopped working.