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Showing posts from April, 2018

New Product: Renice X5A industrial grade CFast 2.0 card

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Renice releases their industrial grade CFast 2.0 card in April 2018, it is a compact storage card with SATAIII 6.0Gb/s interface, CFast 2.0 standard and ATA protocol, offering high performance, reliability and lose power consumption to next generation embedded devices.  Its maximum Read/Write speed up to 520/440 MB/s, maximum capacity up to 512GB (MLC), features with Power Failure Protection and Over Voltage Protection, optional functions including Hardware Write Protection and Write Protection. Comparing to X1 Plus CFast 1.0 card, the new X5A CFast card highlights on its speed, which is an ideal storage device for high speed camera, embedded computer (SBC) and data logger/recorder. To learn more or want to ask for a quote, please feel free to email me (may@renice-tech.com)

How to test the LDPC of 3D NAND?

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With the widely promotion of 3D NAND Flash in the market, LDPC has became a key marketing advertisement by all flash vendors.     From the point of ECC, there is indeed no more powerful error correction algorithm than LDPC. But on the contrary, there also exists disagreements. Although the LDPC has been used by HDD for years, it is still unverified by the market when used in NAND Flash. In theory, LDPC is also with own defects. 1.        The latency time of LDPC is extremely long due to the process of iteration. 2.       The Soft Information is necessary. It’s easy to get the Soft Information of HDD at once, but it’s difficult to get the accurate Soft Information of NAND Flash. Once you get the wrong information, the result could be disastrous. Because the LDPC need to calculate the probability with the Soft Information, if the decoder of LDPC gets the wrong Soft Information, it will lead the wrong inform...

Is Write Protect necessary to SSD drive or memory card?

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Write Protect, including hardware and software write protect, is any physical mechanism that prevents modification or erasure of valuable data on a drive. HW write protect also called Physical Write Protect Switch , it comes with a Hardware Button/ Switch, e.g.: While SW write protect is through software command to execute. Why Write Protect is so important? Because Write Protect can protect your drive files from corruption, infection, unauthorized changes and accidental deletion on any computer. Once the data is written to the NAND and your drive becomes read-only model, so it will effectively prevent any tampering or other malicious use of your device. For example, some embedded system application (such as Gaming, Automotive, Industrial Automation, ATM…) use SSD as the OS drive, they will request the SSD drive supporting Write Protect, because the system data of these applications are not allowed to be modified. Renice's 2.5" SATA SSD, Msata SSD, ...