interposer board

Iconv_open ("UTF-8", "gb2312") on ARM development board The application code is as follows: Static int code_convert (char * from_charset, char * to_charset, char * inbuf, size_t inlen, char * outbuf, size_t outlen) { Iconv_t CD; Char ** pin = inbuf; Char ** pout = outbuf; Cd = iconv_open (to_charset, from_charset );If (Cd =-1){Perror ("iconv_open :");Return-1;} Memset (outbuf, 0, outlen );If (iconv (Cd, pin, inlen, pout, outlen) =-1){// Printf ("

I wrote an LED driver over the past two days and read many posts online. The idea is very clear at first, that is, first look at the circuit diagram and find that the LED lights are connected to the GPM port, Then, let's look at the data manual, first to gpmcon port write command words, let the GPM0-5 set to output, and then write data to the gpmdat port, in the GPM0-5 pin to pull low or pull high level, To control the LED lighting. 1. Circuit Diagram Obviously, the LED light is connected to th

Recently, two jz4750 APUs development boards are required for trial. This is also the first contact. I encountered a lot of problems in the middle and finally spent a lot of time doing a good job. Here I will summarize all the process records (for the time being, I cannot upload a picture, and I will try it again if I have a chance ). This diary is divided into the following points: 1. hardware connectivity 2. Linux environment construction and kernel Compilation 3. root file system, startup fi

Today, we got a Development Board, bv561evb, from Hefei Youshi technology. It consists of a basic board and a power board. It is very small and exquisite, and it looks like 10 cm x 7cm. Connect the 12 V power cord, connect to the serial port, open the Super Terminal, configure it to 115200-n-1, then connect the network cable, everything is ready! Turn on the powe

) \Init_timer_key ((timer), NULL, NULL)Register a Timer#define SETUP_TIMER (Timer, FN, data) \Setup_timer_key ((timer), NULL, NULL, (FN), (data))The following two functions are also available:Add a Timervoid Add_timer (struct timer_list *timer)Delete a timerint Del_timer (struct timer_list *timer)So what is the specific procedure for writing a timer?1. Initialize the kernel timer2, set the parameters of the timer execution function (optional)3. Set timing Time4. Set Timer function5. Start TimerN

The so-called short plate phenomenon refers to a barrel can be filled with the largest amount of water the most important determinant is the shortest piece of wood, in fact, this phenomenon plays an important role in many things, such as in football games, if there is a weaker position, then the team is very easy to be defeated, Deciding whether a football team can win the most important factor is to see which position there is no short board, footbal

These two days in learning some shell programming knowledge, when you do a chess topic, feel a bit of meaning, it is written as a blog.Let's see what the chess board looks like:Think carefully about the rules of the distribution of the chessboard, this problem must have a lot of ideas, I think of the rule is1. The number of checkerboard rows as a large cycle, cycle 8 times, each cycle according to the parity of the line number to determine the order o

NFS file system of Linux virtual machine on the Development Board Http://apps.hi.baidu.com/share/detail/48189956 Today, I did an experiment on embedded applications. How can I run cross-compiled applications on your host on an embedded system? Here I chose to mount the NFS file system over a network. My lab environment: The host machine is a virtual machine centos5.4 The target machine is Linux on mini2440. Here I use a crossover network cable to conn

Image signal Processing Board of dual Tms320c6678+xilinx FPGA K7 xc7k420t based on 6U VPX The integrated image processing hardware platform includes 2 blocks of image signal Processing Board, 1 blocks of video processing board, 1 blocks of main control Board, 1 blocks of power Plate, and 1 blocks of VPX ba

The development Board is used for driver testing, debugging. Perform hardware simulation, debugging and testing.The difference between different development boards is mainly in the way of burning embedded system5.2 Installing the Serial debugging tool: MinicomOK6410 Development Board can display the debug information of Linux driver output via serial communicationMinicom is to let PC and serial device commu