FPGA mining

1. FPGA is free, it seems that mining costs a lot of electricity, Taobao seems to sell information program before

2.

Mining chip has gone from CPU mining to GPU mining to FPGA mining, and now it has entered the era of ASIC mining. However, the way of mining has also experienced from one or two mining machines to small mining machine workshops, and now it has entered the era of large-scale mining

(1) mining mode: from one miner to large-scale mine

if you start to try mining, you need to prepare a miner, a computer with internet connection, an AUC, a raspberry pie, power supply and various connecting cables. The connection order of various devices is network cable - & gt; Raspberry pie - & gt; Microusb cable - & gt; AUC-> 4Pin cable - & gt; Mining machine and power supply

4. The purpose of mining is to package the transaction block. If the package is successful, you will open a new package and get a 25 bitcoin reward, as well as the handling charge for the future transactions added to the package

then other miners will start to package the transaction generated by your new package until the next package comes out first

in the future, the mining capacity of bitcoin will be small or even zero. You still have transaction fees. The system will always need miners, and mining machines will still exist.

5. The first is the level of FPGA. Now the mining cards of foreigners all use low-cost FPGA, such as Spartan series. If you want performance, you need to use high-performance FPGAs, such as vertex series and Stratix series. The computing density and speed are tens of times higher

the second is positioning. The advantage of FPGA is fixed-point and logic, not complex floating-point operation.

6. GPU mining

Hardware

algorithm is difficult to solve in memory. In order to make DAG suitable for memory, each GPU needs 1-2gb of memory. If you get an error prompt: error GPU mining. GPU memory fragmentation? It means you don't have enough memory. GPU mining software is based on OpenCL, amd GPU will be faster than NVIDIA GPU of the same level. ASIC and FPGA are relatively inefficient, so they are blocked. To get OpenCL for chip integration platform, try:
amd SDK OpenCL
NVIDIA CUDA OpenCL
Ubuntu Linux settings

for this quick guide, you will need Ubuntu 14.04 or 15.04 and fglrx image driver. You can also use NVIDIA drives and other platforms, but you have to find your own way to get an effective OpenCL installation, such as genoil's ethminer fork
if you are using 15.04, go to & quot; Software and updates 〉 extra drives & quot; Set to & quot; Use the video driver & quot; from fglrx for AMD graphics accelerator
if you are using 14.04, go to & quot; Software and updates 〉 extra drives & quot; Set to & quot; Use the video driver & quot; from fglrx for AMD graphics accelerator;. Unfortunately, for some people, this method may not work, because there is a known program error in Ubuntu 14.04.02 that will prevent you from switching to the exclusive graphics drive necessary for GPU mining
therefore, if you encounter this program error, go to & quot; "Software and update" update & quot; Select & quot; Pre release reliable update proposal & quot;. Then, back to & quot; Software and updates 〉 extra drives & quot; Set to & quot; Use the video driver & quot; from fglrx for AMD graphics accelerator;. After restarting, it's worth checking that the drive is now properly installed (for example, by going to & quot; Additional drives & quot;)
no matter what you do, if you are using 14.04.02, once installed, do not change the drive or drive configuration. For example, the use of aticonfig – initial (especially the - F, - force option) will & quot; Destruction & quot; Your settings. If you accidentally change the configuration, you will need to uninstall the drive, restart, install the drive again and restart.

7. To understand the problem of home computer mining, we must first explain the mining clearly. As like as two peas came out, they shared a identical record book, so they need a person with a right word to decide the record. Who will record it? Through a topic to decide whose computer is right first, then it has the right to record all the data of this block. This is the popular explanation of mining. And reward the bookkeeper to get an extra sum of money, which is the reward for mining. Reward the person who has contributed enough computing power to solve the problem, which is also the reason why we go mining. Money is money, in order to make money. In the beginning, bitcoin mining was just about CPU. Then, for more money, technicians developed faster and faster accounting methods for graphics cards, FPGA and ASIC chips. Please note here that bitcoin is only the bookkeeping method. Bitcoin is the sha256 algorithm, which is only applicable to this kind of algorithm and can only be used for mining. Later, more algorithms appeared, such as ethash, kawpow, cryptonight, zhash, x16r, randomx, etc. Pay attention to the concepts, algorithms (the above pile) and devices (CPU, graphics card, FPGA, ASIC). They complement each other. A currency may have multiple algorithms or a single algorithm for accounting. The same device can also run different algorithms to get different rewards. The only difference is the efficiency of accounting and the speed of making money. So bitcoin can be g with CPU, graphics card, FPGA and ASIC, but ASIC has the highest efficiency and cost performance. Let's go back to the topic, what can a home computer dig? Home computer = CPU + graphics card. The more suitable CPU is the monero under the randomx algorithm. For graphics card, it is suitable for the automatic selection of nicecash. Now I should talk about the specific mining tutorial to complete the answer, but I recommend a simpler and more convenient method, even without knowing all of the above.

8. From cheap electricity to centralized mining, China's resources and environment provide bitcoin miners with many advantages. In recent years, bitcoin miners have used cheap electricity to expand their business in coal rich regions such as Xinjiang and Inner Mongolia, which are home to the founders of some of the world's leading mining companies

with the rising price of bitcoin, more and more people join the bitcoin mining business. Accordingly, mining consumes more and more energy. Obviously, our government is also aware of this

according to the requirements of the document, regulators require local governments to take measures related to electricity price, land use, tax and environmental protection to guide bitcoin miners to withdraw from the business. According to foreign media reports, regulatory authorities are mainly concerned about the money laundering and financial risks involved in the shutdown policy, but excessive power consumption is also a factor that can not be ignored. In principle, bitcoin mining consumes a lot of power because every time a new bitcoin is proced, it needs to solve the complex mathematical problems through the encryption process performed by a high-performance computer. Mining calculation process is used to verify bitcoin transactions in the blockchain to ensure security, but the disadvantage is that it consumes a lot of energy.

9.

Mining is a nickname for the exploration method of acquiring bitcoin. Because of its working principle is very similar to mining minerals, so named. In addition, bitcoin explorers who do mining work are also known as miners

bitcoin network generates new bitcoin through "mining". In essence, the so-called "mining" is to use computers to solve a complex mathematical problem to ensure the consistency of bitcoin network distributed accounting system

bitcoin network will automatically adjust the difficulty of mathematical problems, so that the whole network can get a qualified answer about every 10 minutes

then the bitcoin network will generate a certain amount of bitcoin as a reward to reward the person who gets the answer

extended data:

to be a miner, just "mine" bitcoin and search for 64 bit numbers by computer. By repeatedly decrypting with a computer, it competes with other gold miners to provide the number needed for the bitcoin network

if the computer can successfully create a set of numbers, it will get 25 bitcoins. Bitcoin is decentralized. It needs to create a fixed number of bitcoins per unit of computing time. It can get 25 bitcoins every 10 minutes

by 2140, the upper limit of bitcoin in circulation will reach 21 million. In other words, bitcoin system can be self-sufficient, which can be translated into coding to resist inflation and prevent others from sabotaging< br />