Today, I got a botron pxa270a Development Board, but the random CD is down. The new CD should wait for at least next week, so I tried to build a cross-compilation environment.
After searching for a day on Google, most of the Cross-compilation environment construction methods do not apply to this development board. Finally, finally found an open source project crosstool, using this tool can easily build XScale, ARM7-ARM9, mk6800, PowerPC and Other c
Unexpectedly, I really did not expect that Intel decided to sell "children" who have been raising for eight years so quickly. Some of them were born in Dec, and more of them are still under 8 years old. They are born in intel, and these children named "strongarm" or "XScale" are even more promising. They have arm genes in their bodies, but they are different from other similar genes with arm genes. Their core genes have been improved and designed, it
1. Configure the kernel
Graphics support --->
Support for frame buffer devices --->
pxa LCD framebuffer support
Consoledisplay driver support --->
Framebuffer console support
2. Configure Resources
(1)
Static struct
1. Create a directory
(1) mkdir busybox-rootfs
CD busybox-rootfs
Mkdir bin Dev etc home lib MNT opt proc root sbin sys tmp usr VaR
(2) Compile commands and library files compiled from busybox into the corresponding folder.
(3) configure the
the height of the direction is enlarged, and vice versa Fovy become larger, the height of the direction smaller.aspect:aspect = W/h,fovy = 90 degrees, by the projection matrix of the calculation process, projection Yscale = cot (FOVY/2); XScale = Yscale/aspect.When the screen w:h = 100:20, when aspect = 5:1, then the [5,1] square cross-sectional world within the cone will be transformed into a plane of (),XScale
The 64-bit system cannot run the analysis process of the 32-bit program because it cannot find the 32-bit program loader.
In
http://wiki.ok-labs.com/Microkernel
Download
Arm-linux-gnueabi-4.2.4.tar.gz, sdk-xscale-3.0.tar.gz, Skyeye 1.2.1nand skyeye.conf, and operate according to tut-sdk-singlecell.pdf.
export PATH=$PATH:`pwd`/arm-unknown-linux-gnueabi/bin
Add it to the PATH environment variable.
Go to the singlecell directory and run the make comma
Operating System: Ubuntu10.04TinyOS version: TinyOS2.1.1 there are two options: xscale-elf-gcc for pxa271, and arm-elf-gcc for arm. Note: pxz271 is part 1 of the arm architecture. xscale-elf-gcc installation 1. download xscale-elf-binutils, xscale-elf-gcc, xscale-elf-newli
O
Chengshi asked to change the map, because using the PIL package to convert the picture object into a numpy matrix, interception and processing is very fun and convenient, hereby recorded:1 ImportNumPy as NP2 fromPILImportImage3 ImportMatplotlib.pyplot as Plt4 5img = Image.open ('./7b6021ef9e6892dcf14dc5dd269afaada763fedc13b29-ihxenu_fw658.jpeg')6 plt.imshow (IMG)7 plt.show ()8 #Convert to Arrays9IMG =Np.asarray (IMG)Ten Print('image matrix Size:', Img.shape) One A #capture the image above and
If you want to implement a line chart, but do not find the appropriate control orCodeThere is only one basic look. On the basis of it, some improvements have been made to make it more flexible. You can transfer parameters, set positions, coordinate axis length, and Scale length.
Custom chartview. Java
Package jetz. Common;
Import Android. content. context;Import Android. Graphics. Canvas;Import Android. Graphics. color;Import Android. Graphics. paint;Import Android. View. view;
Public cla
according to the configuration file, simulate MMU/CACHE, and execute commands related to MMU/CACHE. If the CPU command simulation module executes the read/write memory operation command, it is transferred to the MMU/CACHE simulation module. If the simulated CPU type does not support MMU (such as arm7TDMI), SkyEye directly transfers the accessed address to the MEMORY simulation module or the I/O simulation module of the Development Board; otherwise, it is transferred to the simulation sub-module
By chuckgao 2009
Recently, we have studied bilinear and bicubic algorithms for image scaling during video stream playback. Here is an algorithm that doubles the image in the latest project. For algorithm optimization, you can consider using the method of creating a scaling ing table.
Bilinear algorithm:
Int bilinear_scale(Long newx,Long newy,Unsigned long oldbytesperline,Unsigned long newbytesperline,Int format,Unsigned char * newimage,Image image){Unsigned char * PTR;
If (newx = 0 | newy = 0 ){
About the use of ECHART2,ECHART3 maps a little bit of life experience:1.echart3,echart2 load Map deformation repair.Recently, when using ECHART2, it was found that loading a map of Hainan would produce deformation. For example, the map of Hainan has a large deformation, so we need to study how to eliminate the deformation. After a toss-up, modify the _gettransform function in the Echart-all.jsvarxScale = width /mapWidth;varyScale = height / mapHeight;console.log(rate);if(
Detailed description and reference of flash js fusioncharts parametersObjects anchors are numerical points used to identify line or area. Effects animation, shadow, glow illumination, bevel skew, and blur animation attributes _ alpha, _ x, _ y, and _ xscale are supported., _ yscale background the background of the entire chart supports the following attributes: animation, shadow, glow, bevel, and blur: _ alphaObjectsAnchorsSupports animation effects,
The elasticity is really hard to do. I tried it for one afternoon and didn't make it out:// Total number of images:Total = 7;// Spacing:D = 25;// Image width:W = 100;// Total length:W = total * (w + d );// The speed at which the image gets bigger and smaller:DScale = 10;// Add images to the scene:For (I = 1; I This. attachMovie ("pic", "pic" + I, I, {_ x: I * (w + d)-W/2 });Pic = this ["pic" + I];Pic. gotoAndStop (I );// Place the cursor over the image:Pic. Onro
Fusioncharts Parameters
Objects anchors are numerical points used to identify line or area. Effects animation, shadow, Glow illumination, bevel skew, and blur animation attributes _ Alpha, _ x, _ y, and _ XScale are supported., _ yscale background the background of the entire chart supports the following attributes: animation, shadow, glow, bevel, and blur: _ alpha
ObjectsAnchors anchorsSupports animation effects, shadow shadows, Glow illumination, be
we need to get the DPI of the display device, that is, the number of devices supported per inch. With the DPI we can switch between our accustomed units and unit units, using the API GetDeviceCaps (), which is powerful and can be referenced by MSDN, where we are only able to get the device dpi. Look at the sample code:
[CPP] View plaincopy
Some devices may be different in both horizontal and vertical dpi, so get them separately.
To get the conversion ratio of the horizontal direction
Float Ge
Animation style type
One of the best tasks fusioncharts does is the graphic animation sequence, which is quietly enjoyed by users. By default, fusioncharts uses animations only when drawing data (such as a bar chart, pie chart, or line chart. However, fusioncharts V3 does not limit your imagination.
With animation Styles, you can use animation effects for every object on the chart. You can customize an animation and apply it to various objects in the chart.
Each chart object has an animati
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