怎样使用PC-3000 FLASH蜘蛛板适配器
怎样使用PC-3000 FLASH 蜘蛛板适配器?蜘蛛板适配器可以读取一体盘(Monolith) 。 在本文中，我们将描述此适配器的主要功能，并显示MicroSD读取的示例。https://i0.wp.com/blog.acelaboratory.com/wp-content/uploads/2017/05/Spider_main-1024x635.jpg?resize=640%2C397
它设计用于连接以单封装芯片（monolith）形式制造的基于NAND的闪存驱动器的内部触点。 该适配器由25个通用触点组成，这些触点在相应任务中支持与NAND接口信号关联的软件配置。 请注意，该适配器仅受PC-3000 Flash Reader 4.0支持。
观看下面的视频，全面了解蜘蛛板适配器和MicroSD读取过程的示例：:蜘蛛板是基于成熟的可配置Xilinx芯片的非常智能的硬件配置。 这是一个具有广泛功能的完整系统，并且会不断更新和改进。 蜘蛛板适配器具有两个主要功能：:
[*]能够从各种单片器件(一体盘Monolith)中读取数据；
[*]有机会在mSD，SD和eMMC设备上以 卡适配Card Adapter 模式工作（在创建新任务时，必须在设备选项中选择 卡适配Card Adapter）。
https://i1.wp.com/blog.acelaboratory.com/wp-content/uploads/2017/05/Xilinx.jpg?resize=640%2C534现在，我们正在努力添加其他功能，这些功能可以显着改善自动引脚搜索和逻辑分析仪功能。 请关注我们有关PC-3000 Flash的更新和新闻！注1：适配器的针状插针本质上有防噪触点，设计时考虑了技术任务和设备的特性。 它们镀镍以防止氧化，并用特殊的尖端涂层部分覆盖以防止短路。针可以在安装到 一体芯片 Monolith 上的引脚后灵活弯曲。 固定针脚后，使用显微镜检查所有针头的排列是否正确，并且不要从“引脚图位置”移动到任何位置：https://i2.wp.com/blog.acelaboratory.com/wp-content/uploads/2017/05/SpiderNeelde-1024x576.jpg?resize=640%2C360To avoid any damages, please, remember the following scheme:https://i1.wp.com/blog.acelaboratory.com/wp-content/uploads/2017/05/needle_1.png?resize=640%2C169Without fixing the screw, needle can be stretched. When you are going to fix it with thumb screw, position of needle edge is shifted:https://i2.wp.com/blog.acelaboratory.com/wp-content/uploads/2017/05/needle_2.png?resize=640%2C191Don’t worry if you bend, screw or somehow damaged the needles of your Spider Board Adapter. You may always order an additional set od spider board neeedle and replace the bad ones. Note 2:New adapter has two ways of providing power supply – from needles and from extended clams output. Basically, it’s possible to work with monolith absolutely without soldering – everything you need is just arrange 2-3 needle for GND and 2-3 on VCC on the same pin (VCC, GND).To provide good power supply current use several needles for PWR and GND, instead of using them for other important contacts. Whenever possible, power and ground contacts should be connected to a monolith using stranded conductors with the diameter of at least 0,2 mm! Thicker cross-section of wires will always provide better PWR supply to monolith.https://i0.wp.com/blog.acelaboratory.com/wp-content/uploads/2017/05/SpiderPWR-1024x576.jpg?resize=640%2C360ATTENTION: For better reading result, we recommend you to pay attention for wires (they should be short and wide) and for power supply soldering (use the flux and soldering tin).Note 3:The ability to read chip ID or image of NAND depends on the type of monolith internal structure. There are 2 different types:
[*]With separate bus line from Technological Pin Map to CPU and NAND core:
https://i1.wp.com/blog.acelaboratory.com/wp-content/uploads/2017/05/sd_1.png?resize=420%2C399Type 1
[*]With common bus line that goes from Technological Pin Map to NAND core through controller chip:
https://i0.wp.com/blog.acelaboratory.com/wp-content/uploads/2017/05/sd_2.png?resize=413%2C408Type 2Usually there is no problem to read Type 1 chips. All you need is to arrange the pins and start the reading process.As for the Type 2 chips, data recovery tasks become much more complicated. As you can see from Type 2 scheme, bus from technological pins goes through CPU, and controller may influence on possibility to transfer the data. The main reason why all Flash drives become corrupted is a Firmware issue. But hardware parts such as CPU, buffers and NAND are remained in operating condition. When you power ON, CPU starts working and may block access to NAND core through Techno Pins. Here are the typical signs of such behaviour:
[*]ID is reading incorrectly (missed or mixed bytes: instead 0x45DE9493 it might read 0xDE949345, or 0x45009493);
[*]ID is reading normally but dump is not reading (abort with error);
[*]ID is not reading (0xFFFFFF, 0x000000, 0x6C6C6C6C6C);
If you have one of these issues, you should be aware about possible problem with CPU influence.Here are several methods to bypass the CPU influence:
[*]You can try to decrease power supply values to 2.4V – 2.8V using Options -> PC-3000 Flash Parameters -> Power Adapter control:
https://i0.wp.com/blog.acelaboratory.com/wp-content/uploads/2017/05/VCC.png?resize=640%2C325With lower voltage, controller of monolith device may become turned-off, and it will be possible to read NAND chip without any noises or blocking commands from CPU side. But be careful – too small voltages may be a reason of switching-off NAND buffers. In this case dump reading will be impossible until you restart power supply. That’s why you need to select several values from 2.4V till 2.8V and find the best one for chip ID and dump reading.
[*]Another way – physical controller destruction. This method is for experienced engineers only. Please note, it’s very dangerous, because you can damage internal structure of monolith and make your monolith unrecoverable! You may use the following operations at your own risk.
For physical controller destruction you should know where exactly controller is located. Without X-RAY picture it’s impossible to find CPU. As soon as you make an X-RAY picture of monolith internal structure, you will be able to find controller crystal and drill it (or just scratch) with very thin auger. After that, bus line will be free out of controller influence, and it will become possible to read the whole dump.https://i2.wp.com/blog.acelaboratory.com/wp-content/uploads/2017/05/1-3-210x300.jpg?resize=210%2C300https://i1.wp.com/blog.acelaboratory.com/wp-content/uploads/2017/05/2-2-210x300.jpg?resize=210%2C300Example №1 of controller placement inside UFD monolith device (pictured by Recuperodatos.com)https://i2.wp.com/blog.acelaboratory.com/wp-content/uploads/2017/05/1-173x300.png?resize=173%2C300https://i2.wp.com/blog.acelaboratory.com/wp-content/uploads/2017/05/2-173x300.png?resize=173%2C300Example №2 of controller placement inside UFD monolith device (pictured by Myung Information Technologies)To know more, please, read the Spider Board manual in your Update box. If you have any questions do not hesitate to ask ACE Lab technical support service for assistance.https://i2.wp.com/blog.acelaboratory.com/wp-content/uploads/2017/05/Spider_ex-1-1024x545.jpg?resize=640%2C341
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