A high-speed memory with the function of continuous storage after power failure

Abstract

Provided is a high-speed memorizer with outage renew function. The memorizer comprises three memory boards, wherein two memory boards are a back-up to each other, and used for storing data after framing of a collector and ground testing system control instructions relayed through an interface controller, and the third memory board is used for storing external system backup data and the ground testing system control instructions relayed though the interface controller. The high-speed memorizer with the outage renew function conducts double-face read-write operation on two CEs of an NAND Flash chip simultaneously through an FPGA unit, which improves the read-write speed of the memorizer compared with the traditional single CE single-face operation. Besides, after power on reset is completed, the high-speed memorizer with the outage renew function can detect and store the block address written last time, which achieves the outage renew function, renews behind existing data, supports multiple times of outage operation during ground testing and aircraft flight, improves the reliability of the system, and meets the special usage requirements of the system.

Description

technical field [0001] The invention relates to a high-speed memory with a power-off continuous storage function, which belongs to the field of recovery telemetry of high-speed aircraft. Background technique [0002] The telemetry system mainly completes the measurement, storage and subsequent data processing of various mechanical, thermal and other environmental parameters and other data of the aircraft during flight. Recovery telemetry is one of the main telemetry methods for high-speed aircraft, and memory and data processing technology are the core equipment and technologies for recovery telemetry. [0003] The telemetry system on the aircraft is generally composed of equipment such as an acquisition and editing device, an interface controller, and a memory. The editor is used to collect, encode and frame the analog signal, and send the framed data to the memory through the LVDS interface. The interface controller is used to receive external system backup data and grou...

AI Technical Summary

Problems solved by technology

When the memory is used for storage operations, it generally uses single-CE and single-sided operations, and the storage rate is low, which cannot meet the current demand for high-speed data storage in telemetry systems.

And when the memory in the traditional telemetry system is stored, the memory is generally controlled by instructions to start recording. After the power is turned off and on again, the recording cannot be automatically started

And start recording from the first address each time, and cannot continue to save from the existing data

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