altera nios

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Nios II (i)

Using cable "Usb-blaster [USB-0]", device 1, instance 0x00Pausing target Processor: not responding.Resetting and trying again:failedLeaving target processor pausedOnline summary three points cause this problem occurs: 1, the pin of the reset button does not correspond well, resulting in an error, 2, to the SDRAM CLK, and CPU CLK no lag-75 phase; 3, if the PLL output CLK, do not directly fly to the PLL input port, otherwise it will error.This communication error is basically due to a PIN definiti

FPGA learning notes Altera FPGA using JIC file to configure the Cure tutorial (GO)

Many of the friends who have done microcontroller know that after the MCU is burned to write the program firmware, then the program firmware is stored inside the MCU. The program can continue to operate even if the MCU is powered off and then re-energized. This is because the firmware of the MCU is written to write the program firmware to the MCU on-chip program memory ROM, and most modern MCU this ROM is flash memory. Flash memory can be power-down to keep data, so can realize the power-down pr

Reference design resources of Altera and Xilinx

Design Example of Altera: http://www.altera.com.cn/support/examples/exm-index.html Reference Design of Altera: http://www.altera.com.cn/support/refdesigns/ref-index.jsp Altera White Paper: http://www.altera.com.cn/literature/lit-wp.jsp Altera application manual: http://www.altera.com.cn/literature/lit-an.jsp

(Original) How to Use Modelsim-Altera as the electrical model? (SOC) (Quartus II) (Modelsim)

AbstractHowever, in Quartus II, the vector waveform method can be used as the electrical module, but this method is limited to a single module, how can we use Modelsim-Altera and testbench to create a linear electrical model? IntroductionEnvironment: US us II 7.2 SP3 + Modelsim-Altera 6.1g How can I design a digital circuit in the website? (SOC), we use the vector waveform modulo created in Quartus II.

Reading and writing of cache and memory data in Nios II

Nios uses 31bit in the address to indicate whether the access is bypass cache.If bit 31=0 indicates that the cache is not bypass, it uses the data in the cache, and if bit 31=1 represents the bypass cache, the data in the mem is used directly.such as the alt_remap_uncached function1 #ifdef nios2_mmu_present2 /*Convert KERNEL Region address to IO region address*/3 #defineBypass_dcache_mask (0x1 4 #else5 /*Set bit of address to bypass D-cache*/6 #define

NIOS II encountered in the C problem

-dimensional matrix into a heat force diagram. The first is implemented using the IF else structure. Later thought, this way of realization is really inefficient, with nios run exhausted it. So a change of mind, the idea of using a mapping table to achieve the highest efficiency. A 256-color array of size 256 is created, and the color information is written in advance. The data of the two-dimensional matrix is assigned to itself by taking the value of

(Formerly known) after modifying qsys or RTL, how should the Nios ii sbt face the new hardware? (SOC) (nio ii) (qsys)

summary of individual understanding and cannot replace the official information of Altera. Generate BSPThe workflow is as follows: It is worth noting that generate BSP will re-root *. sopcinfo to generate drivers/hal, that is, if you remove an IP address from qsys, generate BSP will automatically help you delete the case related to drivers/hal, if you manually modify the C code of drivers/hal, The generate BSP will be overwritten again, theref

[Post] organize the official documents of Altera

. InAlteraThe Chinese website also has some past activities. You can click to query details. University Program(University Program) AlteraOne of the main reasons for achieving great success in China is its university program. InSupportThe following services are provided: Questions and answers-FAQs Search altera.com-Website search De2 FAQ-De2FAQs about the Development Board University Program Forum-University Program Forum Altera

ModelSim Altera 6.5b download, install, and use

Ftp://ftp.altera.com/outgoing/release/, drag into the thunder, fast and can be interrupted to continue. According to netizens: ASE is Altera start edition, entry edition, free AE is an ALTERA edition and an Nb version. It must be cracked, Here I install modelsim_ AE _windowns of 9.1sp1. If I find it, I will upload it. 1. There is no need to explain silly installation. Do not enter Chinese space

FPGA Fundamentals 2 (logical Resources--slices VS le comparisons in Xilinx Altera FPGAs)

Source: http://www.union-rnd.com/xilinx-vs-altera-slices-vs-les/ObjectiveOften a friend asks me, "Am I using a FPGA or X-Home FPGA for this program?" Do they have enough capacity? How do they compare their capacity? "Of course, most of the time, when I design for the customer, I will use the highest capacity products directly, because our products are not sensitive to cost. However, this is still a comparison of the two products, simply write some of

About Altera Usb-blaster's solution

After one months of bump, the problem of the driver of the Development Board finally solved, the time of the maniac also vividly, how many times on the brink of collapse.It's funny to think, before this method is to open the Regedit registry, and then search for Altera related drivers, not specific (may not be searched), and then delete all the Altera USB related registry, it is OK.Have tried this method be

Ubuntu under Xilinx Platform Cable usb/altera usb-blaster/seed XDS-560

Under non-root permissions to run the IDE, such as VIVADO/QUARTUS/CCS, need to use JTAG when the issue of permissions, almost all USB debugging devices under Linux will encounter this problem. Here is an example of how to solve this problem with Xilinx Platform Cable USB.After plugging in the USB, view the deviceLsusb001 006View permissions for this devicels -l/dev/bus/usb/001/006CRW11895 24 :/dev/bus/usb/ 001/006You can see that the current user does not have executable permissions, and other

Comparison of the use of the Altera OpenCL SDK with Xilinx SDAccel

For job requirements, the two high-level language synthesis tools were applied, and the typical algorithms were implemented and evaluated (data is temporarily kept secret).Briefly talk about the experience of using.1. Altera OpenCL SDKFirst, you need to install Quartus (more than 13.1 version) and the supporting Soc EDS, respectively, apply for two license, one for the OpenCL SDK, one for soceds, indispensable.Then need to have implementation platform

Call the Altera IP core emulation process-up

Call the Altera IP core emulation process-upAfter studying this section, please read the simple simulation process based on Modelsim-se, as this section is designed based on the simple modelsim-se simulation process and the repetitive content involved in the process of designing the simulation process will no longer be detailed and will be If you delve into the section "simple simulation process based on Modelsim-se", the following will be very simple

(Reporter) KEYWORDS (SOC) under one-time packaging of the relevant information of Altera niosii)

AbstractThere are actually a lot of related information provided by Altera, but it is impossible to organize systems like Microsoft msdn library, but in part II, I found that Altera made a complete package of related materials, handbook, userguide, tutorial... the connection is in. IntroductionNioii correlation item header: http://www.altera.com/literature/lit-nio2.jspNiosii_docs_7_2.zipNiosii_docs_8_0.zip

(Original) detailed introduction to Altera device Programming

I have summarized the programming of the Altera device as follows. I hope to comment on it more .......... Configuration file: After the logic code of the Altera us compilation is completed, the system generates the POF (Program object file) programming object file and the sof (SRAM object file) SRAM object file. POF is used to load EPC, and SOF is used to directly configure the SRAM structure of FPGA.

"On-Chip FPGA Advanced Learning Tour" ddr2+ Gigabit Ethernet circuit design based on Altera FPGA

DDR2 Circuit DesignHigh-speed large-capacity cache is an essential hardware in high-speed big data applications. At present, the use of a wide range of high-speed large-capacity memory in FPGA system has a classical low-speed single data rate of SDRAM memory, and high-speed dual-rate DDR, DDR2, DDR3 type SDRAM memory, The DDR series of memory all require the FPGA chip has the corresponding hardware circuit structure support. For the Altera Cyclone IV

An independent analysis Altera's FPGA floating-point DSP design flow

Link: http://www.altera.com.cn/literature/wp/wp-01166-bdti-altera-floating-point-dsp.pdf In the future, it will be more meaningful to conduct a comparison test of Xilinx DSP architecture FPGA based on the testing method in this article. But remember: the human brain is the best optimizer! Introduction: OverviewFPGAs are increasingly used as Parallel Processing engines for demanding digitalSignal processing applications. benchmark results show that on

How to add Xilinx/Altera library in Modelsim

Currently, many people install Xilinx and Modelsim separately. Therefore, when using simulation libraries of chip manufacturers such as Xilinx or Altera, libraries cannot be found; because Modelsim does not own the simulation libraries of FPGA manufacturers, you must manually compile these libraries. Below I will introduce three methods to increase the library problem of Xilinx or Altera: 1. find the inst

FPGA timing constraints (Altera timequest)

A good timing constraint can be used to guide the layout and wiring tools to weigh and obtain the optimal device performance, so that the design code can reflect the designer's design intent to the greatest extent possible. 2 timequest is an ASIC-style static timing analysis (STA) tool added by Altera to the 6.0 software. The Synopsys Design constraints (SDC) file format is used as the time series constraint input. 3. timequest checks the creation tim

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