pc3200 ddr

In uboot, denx implements a strict DDR detection program for common memory faults. The process and method of detecting data lines, address lines, and DDR physical memory are described in three phases. The science is rigorous, and it is not surprising that the DDR subsystem is prone to faults but difficult to debug. This set of algorithms designed by denx is calle

Before ddr sdram can be accessed, it must be initialized. The initialization process is pre-defined and incorrect operations will lead to unexpected results. During initialization, general mode registers and extended mode registers of ddrsdram will be set to define how ddr sdram works. These settings include burst length, burst type, CAS latency and working mode, as well as settings for

Label:With the front of a pile of bedding. Now it's time to formally prepare to read and write DDR, development environment: VIVADO2014.2 + SDK. 　　First, in the PL end to control the DDR through AXI, we must have a Axi master, because it is a test, do not write their own, directly with the package IP generated, the method is as follows: 1. Select the Package IP tool 　　 2. Create a new Axi peripheral 　　 3.

I. MX6 DDR parameter settings, I. mx6ddr parameter settingsThe DDR Stress Test Tool provides two purposes. First, it can be used to calibrate DDR3 to facilitate mmdc phy delay settings and PCB pairing to achieve the best DRAM performance. The entire process is fully automated, so customers can work with DDR3 in a short period of time. In addition, this tool can run a memory stress test to verify the functio

in the design of the PCB of the DDR, it is generally necessary to consider the equal length and topological structure. Equal length is better to deal with, given a certain length of the accuracy of the PCB designer is usually able to complete. But for different rates of DDR, it is critical to choose the right topology, the T-topology and the daisy-chain topology that are often used in

Abstract: The DDR technology and HSTL level standard are high-speed data transmission technologies that have emerged in recent years. The specific use of these two technologies in ddr sram devices is discussed based on actual issues. Keywords:Ddr sram hstl level Samsung ddr sram is one of the fastest in the world. Because of its special level characteristic

How can I check the DDR memory speed? The CPU-Z software is very good. Although it detects the CPU, it can also detect the motherboard and memory, and its functions are unambiguous! It can detect whether the CPU is too frequently, whether it is 32-bit, the model of the motherboard, the number of memory slots of the motherboard, the model and speed of the memory, etc. Run CPU-Z and click the "Memory" tab to clearly display the memory frequency.The

SDRAM H57V2562GTR-75C 256 m (16*16) K4S561632N-LC60 256 m (16*16) DDR K4H561638N-LCCC 256 MB H5DU2562GTR-E3C 256 MB K4H511638J-LCCC 512 MB HY5DU121622DTP-D43 512 MB H5DU5162ETR-E3C 512 MB DDR2 K4T51163QI-HCE7 512 M/32*16 K4T51163QJ-BCE7 512 M/32*16 H5PS5162GFR-Y5C 512 M/32*16 H5PS5162GFR-S5C 512 M/32*16 H5PS1G63EFR-S5C 1g/64*16 H5PS1G63EFR-Y5C 1g/64*16 H5PS1G63EFR-S6C 1g/64*16 K4T1G164QF-BCE7 1g/64*16 H5PS1G83EFR-S6C 1g/128*8 Ddr3 K4B1G1646G-HCH9

SDRAM and DDR SDRAMSDRAM is a long time, but we said it certainly will not be confused with DDR, we usually understand the SDRAM is the SDR SDRAM, for the first generation of SDRAM, and DDR1 for the second generation, and even to the DDR4 we use now, in fact, for the fifth generation SDRAM, There is a need for clarification here. To show the difference, the subsequent article with SDR to refer specifically

When the bare board program is written on the OK6410, the DDR cannot be initialized successfully using Jink or using Loadbin ddr.bin 0xc000000 in Jlink-commander, and stays in the step of waiting for the DDR to initialize ready;Note: The first two days can also successfully initialize the DDR and be able to perform the operation of the UART initialization, and th

(1) In terms of appearance, the common SDRAM memory strips and DDR SDRAM memory strips are almost indistinguishable, but careful observation will find many differences. The SDRAM is often said to be DIMM memory, it has a common (84x2 face) point of contact, so this memory is called 168-line memory, and the new standard DDR SDRAM memory bar has 184 points of contact. (2) SDRAM's gold finger has two notches,

the DDR Stress Test Tool provides two purposes. First, it can be used to calibrate the DDR3 so that the MMDC PHY delay settings and PCB are paired to achieve the best dram new energy. The whole process is fully automated, so customers can get their DDR3 working in a short period of time. In addition, the tool can run memory stress tests to verify the functionality and reliability of the DDR3. Stress tests can be used to verify hardware connections, MM

transplant engineer himself, generally set as the appropriate size (not too small, too small easy overflow; not too big, too big wasted space)(5) Partitions are determined before the system is migrated, using the same partition table in Uboot and kernel. The partitioning method in future system deployment and system code must also be the same.2. Uboot stage DDR partition(1) The partition of DDR and the par

As we all know, there are currently three kinds of desktop memory in the market, specifically divided into DDR,DDR2 and DDR3, then the three kinds of memory in the end how to judge and distinguish it? Now the Wuhan Long Dragon Computer Maintenance center of the author to give you a specific talk about the difference between them in order to solve the computer we want to upgrade the purchase of memory strips, The memory of the purchase of the wrong, th

DDR internal composition DDR is composed of multiple storage arrays. We call these storage arrays as banks. The early SDRAM was split into two banks, and then four, this is the maximum number of banks specified in the SDRAM specification. In the DDR2 standard, the number of banks is increased to 8. Each storage array is like a table. Each cell in a table is the smallest storage unit. The size can be 4, 8, o

Label:looking at the DDR manual for a while, feeling a little bit about it, want to actually board debugging, but the lab is not much usable development Board, took a piece of ZYNQ board looked, DDR does have, but has integrated the controller, and the controller is placed on the PS end, PL can only be accessed through the Axi interface. But the other two development boards also like this, simply use Axi t

ZYNQ image paths to be used for ZYNQ video-related developers. This post describes a camera +hls image processing +DDR storage +VGA display image path. This channel is I and another colleague to achieve, I am responsible for the camera FPGA driver, HLS image processing IP Implementation and the system later optimization. Because of the company project, it is not possible to provide engineering documents, only to provide the framework and ideas.The sy