Abstract: An I2C bus communication control method, device and system, and a readable storage medium. The method comprises: receiving configuration information of an I2C bus sent by an upper-layer application; analyzing the configuration information to obtain a plurality of polling parameters; writing the plurality of polling parameters into a polling table; and controlling the I2C bus, and executing a corresponding read-write operation according to the polling table. In the method, the read-write operation executed on the I2C bus is performed according to the polling table, thus an accurate communication condition of the I2C bus can be directly obtained on the basis of the polling table without accessing a bus state in a polling manner; congestion risks can be reduced, and the access efficiency of a single main device can also be achieved when a plurality of main devices exist.

Abstract: A video storage method and apparatus, and a system on chip (SOC) system and a medium. The method includes: according to video information to be stored and occupation information of a target double data rate (DDR), sending a storage space application request to the target DDR (S11); receiving a storage space allocation response sent by the target DDR according to the storage space application request (S12); and storing video data to be stored, which corresponds to the video information to be stored, in an address space which is in the target DDR and corresponds to the storage space application request (S13). By means of the present application, the wasting of a storage space can be avoided, and when video storage is not needed, a storage resource on a SOC system can be used for supporting the operation of other functions.

Abstract: An I2C bus communication control method, device and system, and a readable storage medium. The method comprises: receiving configuration information of an I2C bus sent by an upper-layer application; analyzing the configuration information to obtain a plurality of polling parameters; writing the plurality of polling parameters into a polling table; and controlling the I2C bus, and executing a corresponding read-write operation according to the polling table. In the method, the read-write operation executed on the I2C bus is performed according to the polling table, thus an accurate communication condition of the I2C bus can be directly obtained on the basis of the polling table without accessing a bus state in a polling manner; congestion risks can be reduced, and the access efficiency of a single main device can also be achieved when a plurality of main devices exist.