keil microcontroller

Http://hi.baidu.com/mcu8031/blog/item/c95903138671c625dc540171.html Microcontroller-driven dm9000 Nic chip (detailed debugging process) [bottom] 4. verify each function in initialization. Next let's take a look at whether the above initialization function is available. We have written three functions as follows: Dm9000_init (), sendpacket (), and receivepacket () are saved and named dm9000.c. Now that we want to debug, when However, there must be outp

] = 0x55 Movwf TMP; [TMP] = [w] = 0x55 Addlw W register and 8-bit immediate addition Syntax: addlw K Operand: K is an 8-digit immediate number. Execution time: one instruction cycle Execution Process: [w] + k → W Status flag impact: Z DC C Note: The w register value and the 8-bit immediate number are added, and the result is placed in the W register. Command example: Movlw 0xaa; W = 0xaa Addlw 0x11; W = 0xaa + 0x11 = 0xbb Sublw immediate count minus W register Syntax: sublw K Operand: K is an 8-

This article describes in detail how to migrate the NFC Reader library to the Kinetis k64f microcontroller. This article uses a real-world porting case to demonstrate the steps required to migrate the NFC Reader library to the sample target MCU. The purpose of this article is to serve as a guide for software developers to transplant the NFC Reader library into the MCU chosen by their design. NFC Reader Library Overview The NFC Reader Library is a se

r3,04hDJNZ R5, C0012MOV r5,06hDJNZ R7, C0012RetAssuming that the initial value of the parameter variable i is m, the initial value of the parameter variable j is n, the initial value of the parameter variable K is L, then the total delay time is: LX (NX (MXT+2T) +2t) +3t, where T is the time of djnz and MOV instruction execution. When m=n=l, the precision delay is 9 T, the shortest, when m=n=l=256, accurate delay to 16908803T, the longest.Above reference http://wenku.baidu.com/view/e79d80c40c22

Tags: blog HTTP Io ar OS SP file data You can view the virtual debugging information of the serial port in Keil through view-serial windows-# usart1/2/3/4/debug (printf. Of course, you can also use the virtual serial port vspd + Serial Port debugging Assistant in the external implementation, the method is as follows: Procedure 1. Download the virtual serial port software and the virtual two connected serial ports Coma/comb. These two serial port

more sequences of repeated use instructions. of course, the optimization level is not as high as possible, and should be appropriately selected according to the specific requirements. in-depth analysis of Keil C51 bus peripheral operation ProblemRead the "SCM and Embedded System Application" in the 10th issue of 2005 Magazine, "Experience Exchange" column of an article "Keil C51 on the same port of the con

Keil Optimization Level settingOptimization level description (for reference only):The Code optimization bar is used to set the C51 level of optimization. There are 9 levels of optimization (as written in the book), and the high level of optimization includes all the previous levels of optimization. The various levels are described below:0-Level optimization:1, constant folding: Whenever possible, the compiler executes a calculation that evaluates to

rounding operations. In Keil C51, a long integer occupies 4 bytes, stored in RAM in order from high to Low, r.a_byte[0], r.a_byte[1] storing the integer part of the calculation result, r.a_byte[2], r.a_byte[3] The fractional part of the calculation result.Use the following procedure to achieve the rounding operation.P.B_BYTE[0]=R.A_BYTE[0];P.B_BYTE[1]=R.A_BYTE[1];This p.b_int is the integer portion of the computed result. The above program is compile

Newest Single Chip Microcomputer virtual simulation platform build proteus7.9 + Keil uvision4 + mdk414 Proteus has excellent single-chip computer simulation function and supports multiple single-chip computer virtual simulation. A powerful virtual simulation platform can be built using Proteus and other programming software. Simulation chip, such as AT89C51, intel8086, arm7lpc2000, and arm cortex m3 lm3s Latest Virtual Simulation Platform C

has been using Keil to write some of the microcontroller program, but has not done some optimization of the project structure, and sometimes open the project after the document structure level more complex looks very uncomfortable, so here are some of my ideas:First, the structure of the file to be divided into bin Buil_keil include library lst obj source startup such directory, such asThis allows the gener

I read a lotArticleAnd writes are very simple (actually very simple :)). A detailed tutorial is provided. 1. Use vspd to connect two virtual serial ports on the PC. I connect com2 and com3. Click ADDR pair. 2. We can see that two virtual serial ports are connected together on virtual ports. 3. The virtual serial port is ready. First, you can directly enter the command for debugging. We open the Keil MDK and set it to the simulation m

1) Purpose After Keil and Proteus are installed, only the two software can be correctly installed to complete online debugging of the two software.2) Principle The Keil software is an integrated development environment in which the source code of the single-chip microcomputer program can be compiled and debugged. The Proteus software is a circuit simulation software, in which the circuit diagram can be desi

Ⅰ, overviewThe previous article is a summary about the use of Keil-common functions (ii), the article then summarizes the previous article.I will summarize each article of Keil use method together, review the previous summary please click the following link (click to read the original), Keil use Method (summary):http://blog.csdn.net/ybhuangfugui/article/details/5

Source: Keil MDK How to set a non-0 initialization variableSome industrial products, when the system reset (non-power-on reset), may require to hold the data in the pre-reset RAM, used to quickly restore the scene, or not due to the instantaneous reset of the field equipment restart. and Keil MDK by default, any form of reset resets the uninitialized variable data in the Ram area to zero. How to set a non-i

a good program, not only to have a good algorithm, but also need to have a good writing style. It's not easy to write a good algorithm, but a good code style is not difficult. Referring to the format code, Astyle is not a missed tool, it can easily format the program code into its own style without the need to manually modify, and it is green, free, open source. For Astyle help and download, please refer to its official website:http://astyle.sourceforge.net/. The following describes the method o

The difference between the cracked version of Keil uVision3 and the uncracked version is that there is no code restriction, and there is a 2 k code restriction. The attachment contains manuals and tutorials. How to register winXP Installation(This can be used for xp machines) but remember to register in xp security mode before 100% is successful. Not applicable to win2k.1. Click "c51v802a.exe" and install c51v802a.exe until the installation is comple

Original article http://blog.csdn.net/gasbi/article/details/6761420 I checked this question one afternoon and didn't even have a complete web page to explain it clearly. Isn't it too simple for everyone to say? In most cases, the project is simply converted to. Lib. Under Project-> options for target-> output, select create library. However, the generated lib file is huge. The final lib generated by the project I compile now has 2.6 MB. Later I found inspiration (http://www.keil.com/support

files in the same folder as the current file⑥ actual use effect is as follows:Transferred from: http://www.cnblogs.com/totop/archive/2012/07/04/keil-astyle.htmlhttp://bbs.mydigit.cn/read.php?tid=410700A good program, not only to have a good algorithm, but also need to have a good writing style. It's not easy to write a good algorithm, but a good code style is not difficult. Referring to the format code, Astyle is not a missed tool, it can easily form

1, my personal KEIL5 and KEIL4 control"Gorgeous" compared to the Keil 5. I still like KEIL4 "restrained", mainly also is accustomed to. Too lazy to change. Due to the cause of the work. The latest chip on the KEIL4 is not supported. Someone may be able to download the chip support package loaded into, I believe this can certainly, is expected to have a lot of netizens to do so, but I think, the new kind of total demand contact, not a good habit of the

Http://download.csdn.net/source/201540 PC-lint, which is integrated into Keil. It is easy to use and has powerful functions. Everyone may help you and take every colleague seriously. Information such as PC-Lint warning and info can be filtered by adding and deleting options in the configuration file. For example, when using the realview compiler of Keil, the configuration file is