Equipment production flow using flash memory as storage medium

Abstract

The invention relates to an equipment production flow using a flash memory as a storage medium. The production flow comprises the following steps that: A, the equipment using the flash memory as the storage medium is used as a lower computer to be connected to a special production machine used as an upper computer, and the upper computer writes a control program in the lower machine; B, under a condition of being disconnected from the upper computer, the lower computer automatically scans and establishes and stores a bad block table BBT; and C, according to the BBT stored in the lower computer, the upper computer solidifies the proper firmware program to the lower computer. In the production flow, the bad blocks in the lower computer are scanned by the lower computer and the resources of the lower computer are not occupied, so that the condition that the upper computer is idled to wait is hardly happened. Just by being connected with a power supply, the lower computer can complete the scanning process; and if the productivity needs to be increased, the productivity increase can be achieved just by adding proper number of power supplies, so that the units of product of the lower computer in unit time are greatly increased, the production efficiency is greatly improved, and the time cost and the labor cost are lowered.

Description

technical field [0001] The invention relates to a production flow of equipment using flash memory as a storage medium. Background technique [0002] Flash memory (Flash), also known as flash memory, is a non-volatile memory. In the case of power failure, the information of its internal unit can still be saved. And because it has the advantages of high storage density, low price, and fast unit reading speed, it is widely used in electronic products as a memory to store system programs and data information. These electronic products or devices include, but are not limited to, USB (Universal Serial Bus) Disk, MP3, MMC (Multi Media Card), SD (Security Card), CF ( Compact Flash) card, MS (Memory Stick), PMP (Portable Music Player), SSD (Solid State Disk). figure 1 is the functional block diagram of these electronic products or devices. [0003] A flash memory usually contains several "blocks" (Block). Restricted by factors such as technology and process, some "blocks" of the...

AI Technical Summary

Problems solved by technology

With the development and progress of semiconductor technology, the single-chip capacity of flash memory has increased rapidly, which greatly increases the workload of reading and writing in the scanning process; and the wide adoption of MLC (Multi-Level Cell multi-layer cell structure) Due to the storage density of flash memory, it takes longer and longer to completely scan a piece of flash memory, resulting in lower and lower output (production efficiency) of the lower computer per unit time; production costs, especially time costs, have increased significantly

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