During the process of vulnerability exploitation for smart devices, firmware extraction is the first step in analysis and the first step towards success. In previous analyses, the firmware was stored in TSOP8 package NOR flash, which could be extracted directly using a chip clip or by soldering the flash chip for extraction, followed by using … Read more
Have you ever experienced the painful moment of losing a PPT you spent half a day editing because you forgot to click save? The saving process we are talking about here is closely related to the application of storage chips introduced in this article. What is a storage chip? In the information age, the demand … Read more
eMMC, or Embedded Multi Media Card, is defined by the MMC Association. The concept of an embedded multi-media card may be unfamiliar to many. Let’s start by understanding it literally. Since there is an embedded multi-media card, shouldn’t there be a multi-media card? Exactly, you are correct. Moreover, there is a type of card that … Read more
1 What is eMMC eMMC stands for embedded MultiMediaCard, which is a standard for flash memory cards that defines the physical architecture and access interface and protocol for storage systems based on embedded MultiMediaCard, specifically established and published by the JEDEC (Joint Electron Device Engineering Council).It is an extension of MMC with advantages such as … Read more
eMMC, as a common hardware interface in high-speed circuit design, is often used for storage in IOS systems or for storing critical product information. This article will analyze the eMMC protocol and combine it with some unconventional bugs encountered in actual work, aiming to master the circuit design and problem analysis of the eMMC interface … Read more
Author: Ning Nanshan Long press the QR code to join the storage technology and market group. Currently, China only has a presence in the small market of NOR Flash, which is a type of flash memory chip primarily used for storing code and some data. It is widely used in PC motherboards, security monitoring products, … Read more
NOR Flash technology is one of the two main types of non-volatile flash memory on the market today.Intel first developed NOR Flash technology in 1988, which completely changed the dominance of EPROM (Erasable Programmable Read-Only Memory) and EEPROM (Electrically Erasable Programmable Read-Only Memory).In 1989, Toshiba introduced the NAND Flash structure, emphasizing lower cost per bit, … Read more
This is an interesting comment that Little Lion saw in the background. This reader bought a generic SATA SSD from Xianyu, and after it dropped, he opened it up to find four SD cards assembled inside. Therefore, he asked, what is the difference between the two? Why can an SD card be used to impersonate … Read more
If you haven’t bought a storage card in a while, you might be surprised at the increasing number of various labels on today’s high-speed, large-capacity microSD and SD cards, which are becoming more and more difficult to understand.This is because, unlike in the past when they were only used for taking photos, storage cards are … Read more
1. Pin Introduction Pin Name Pin Function CLE Command Latch Enable ALE Address Latch Enable /CE Chip Enable /RE Read Enable /WE Write Enable /WP Write Protect R/B Ready/Busy Output Signal Vcc Power Supply Vss Ground N.C No Connection IO0~IO7 Data, Command, Address Transmission 1. Commands, addresses, and data are transmitted through 8 I/O ports. … Read more