The S7-200 SMART CPU supports commercial MicroSD cards (with capacities of 4G, 8G, and 16G), which can be used for program transfer, CPU firmware updates, and restoring the CPU to factory settings. Open the terminal cover above the digital output points on the CPU body, and you will see a card slot on the right … Read more
Many times, the memory card in your phone gradually fills up, but you may not know where all the memory has gone. You might even feel the urge to format the SD card and start fresh. However, for some friends, how exactly should one go about formatting the memory card? How do you format an … Read more
The starting capacity of SDXC memory cards is typically above 64GB. The speed class indicates the minimum storage speed of the memory card, not the maximum storage speed. For memory cards, most people choose based on appearance and advertised speed, but to truly understand memory cards, one must first clarify what SD, SDHC, and SDXC … Read more
Pixel Reference Table SD cards are compact and lightweight, with fast transfer speeds, and are used by almost all consumer-grade digital cameras. The future development of this storage card is limitless. However, there are three concepts of SD/SDHC/SDXC in the market, which one is the most suitable for our cameras? Secure Digital, abbreviated as SD, … Read more
Click the above Computer Enthusiast to follow us A storage card is a universal storage peripheral suitable for digital devices such as mobile phones, tablets, cameras, drones, dashboard cameras, and surveillance cameras.However, the read and write speeds of storage cards have always been their biggest bottleneck, and the main reason high-end smartphones have discontinued support … Read more
Introduction to Trusted Platform Module (TPM) 1 RPMB (Replay Protected Memory Block) Partition is a secure partition in eMMC. When writing data to RPMB, eMMC verifies the legality of the data; only designated Hosts can write to it. During data reading, it also provides a signature mechanism to ensure that the data read by the … Read more
Introduction to EMMC Circuits EMMC (Embedded Multi Media Card) is a standard specification for embedded storage primarily aimed at products like mobile phones or tablets, established by the MMC Association. EMMC integrates a controller within the package, providing a standard interface and managing flash memory.The schematic for the 8-bit data signal is shown in Figure … Read more
A smartphone is composed of many components, and besides the processor, RAM, and graphics processor, flash memory is also a crucial indicator affecting performance and read speeds. Recently, there has been much discussion on social networks about terms like UFS 2.0, eMMC 5.1, and LPDDR4. Most users are still unclear about what these terms mean … Read more
Recently, the eMMC of the product encountered some issues. In response to these issues, I read the relevant sections of the Embedded Multi-Media Card (eMMC) Electrical Standard (5.1) JESD84-B51 and recorded the eMMC boot process as follows. The above figure shows the eMMC power-on process, with the following steps: 1. Power on VCC and VCCQ, … Read more
Click the above Computer Enthusiasts to follow us Recently, there has been big news that serves as a great comfort regarding the continuously rising prices of solid-state drives (SSDs) — ultra-large capacity QLC flash memory is coming soon. Many of you might be asking, what is QLC? Today, I will talk about this matter and … Read more