STM32，5110液晶显示声纳探鱼器200KHz，带电路图，精确到厘米 MC34063升压，大声压发射，实际板子上滤波电路没要（电路图上的滤波电阻电容电感没焊，开路或者短路）。一般200KHz的换能器在水里面的耦合比较好，在空气中发射出来的（或者接收的）强度很低。 用的MOSFET Relay，contact和release时间都可以做到很小，不过选的是比较低端器件，所以最近测量距离为70cm。 开源啦开源啦 架构为状态机+任务流，Task都是放在函数指针数组里面的 Task分两种，Routine的和错误处理的 5110液晶的SPI用的DMA 基本上STM32和C语言高阶的特征都用上了，稍微修改直接可以商用 Open Issue 偶尔会hardware fault或者memory fault，然后watchdog重启， 应该比较好解决，仔细检查下就好 有什么问题代码的file comment里面有我联系地址 有能搞到好的器件也请知会我，多谢了 接下来准备把它装到船模上，用以前四轴的那套东西，就看什么时候有时间了
上传时间： 2013-10-28
上传用户：songyue1991
NXP Semiconductor designed the LPC2400 microcontrollers around a 16-bit/32-bitARM7TDMI-S CPU core with real-time debug interfaces that include both JTAG andembedded Trace. The LPC2400 microcontrollers have 512 kB of on-chip high-speedFlash memory. This Flash memory includes a special 128-bit wide memory interface andaccelerator architecture that enables the CPU to execute sequential instructions fromFlash memory at the maximum 72 MHz system clock rate. This feature is available onlyon the LPC2000 ARM Microcontroller family of products. The LPC2400 can execute both32-bit ARM and 16-bit Thumb instructions. Support for the two Instruction Sets meansEngineers can choose to optimize their application for either performance or code size atthe sub-Routine level. When the core executes instructions in Thumb state it can reducecode size by more than 30 % with only a small loss in performance while executinginstructions in ARM state maximizes core performance.
上传时间： 2013-11-15
上传用户：zouxinwang
对于Intel x86 PC , 开启电源后, 机器就会开始执行ROM BIOS的一系列系统测试动作，包括检查RAM，keyboard，显示器，软硬磁盘等等。执行完bios 的系统测试之后，紧接着控制权会转移给ROM 中的启动程序(ROM bootstrap Routine)；这个程序会将磁盘上的第0轨第0 扇区（叫boot sector 或MBR ，系统的引导程序就放在此处）读入内存中，并放到自0x07C0:0x0000 开始的512 个字节处.
上传时间： 2014-12-30
上传用户：pei5
外部SRAM与C8051F000接口 Copyright (C) 2000 CYGNAL INTEGRATED PRODUCTS, INC. All rights reserved. FILE NAME : Sram.ASM TARGET MCU : C8051F000 DESCRIPTION : External Sram read/write verification Routine for IDT 71V124SA.
标签： INTEGRATED C8051F000 Copyright PRODUCTS
上传时间： 2014-11-29
上传用户：leehom61
This firmware translates a PS/2 mouse to a USB mouse. The translator firmware is entirely interrupt driven (with the exception of sending the data via USB to the host.) An interrupt is generated when the PS/2 start bit is received, at which time the firmware will begin its receive Routine. In addition to this interrupt, every 168ms a timer overflow interrupts the main program and implements one state of the mouse state machine. This state machine handles sending bytes to and translating bytes received from the PS/2 mouse automatically. All of this is done in the background while the main program runs in the foreground. The only operation that the main program implements is sending mouse data to the PC via USB.
标签： firmware mouse translates translator
上传时间： 2015-04-26
上传用户：cuiyashuo
The module LSQ is for unconstrained linear least-squares fitting. It is based upon Applied Statistics algorithm AS 274 (see comments at the start of the module). A planar-rotation algorithm is used to update the QR- factorization. This makes it suitable for updating regressions as more data become available. The module contains a test for singularities which is simpler and quicker than calculating the singular-value decomposition. An important feature of the algorithm is that it does not square the condition number. The matrix X X is not formed. Hence it is suitable for ill- conditioned problems, such as fitting polynomials. By taking advantage of the MODULE facility, it has been possible to remove many of the arguments to Routines. Apart from the new function VARPRD, and a back-substitution Routine BKSUB2 which it calls, the Routines behave as in AS 274.
标签： least-squares unconstrained Statisti Applied
上传时间： 2015-05-14
上传用户：aig85
MSC 1210 A/D Conversion for 1 input signals (-2.5V ... +2.5V) Inputs pairs AIN0-AIN1 read in an interrupt service Routine
标签： Conversion 2.5 AIN signals
上传时间： 2014-01-25
上传用户：gtzj
实用单片机系统第三版 本包包还程序阅读器souceinsight3.5 以及比较完整得单片机系统，类似与大家知道得UCOS，但又有很大不同！本包是我朋友所作现在我帮助起推广。“现在这段时间RTOS非常热，可很多人往往为了用RTOS而用RTOS，其实很多很多的项目一般的设计都已经可以了的，RTOS显得有些画蛇添足。对于一般的设计思路，往往要做很多的工作，甚至整个软件的结构不知道怎么搭建，McuSystem主要就是解决以上的问题提出的，真正为实用服务的一个系统，它全部用C语言编写，结构非常清晰，核心是它的消息机制，解决很多普通设计中的一些问题，包括并发事件问题。并且这个消息还支持优先级。我相信只要具有一般C语言水平的都能很快的看懂。系统用Source Insight做编辑，keil为编译，DPFLASH下载，这个成了标准配置，目录建在D:\MCU51\。这个程序是让大家去修改，以适合自己的平台用。现在简单的说一下文件的构成:boot.c是入口程序，define.h是一些宏定义，system.c是系统内核，包括节拍，消息都在这个里面，Routine.c为例行程序，如键盘，数码管显示都在这个里面控制，键盘是采用扫描的。”
标签： souceinsight 3.5 用单片机 比较
上传时间： 2015-12-29
上传用户：liansi
This program illustrates how to erase, write, and read FLASH memory from application code written in C . This Routine exercises the upper 128- byte FLASH sector.
标签： illustrates application program written
上传时间： 2013-12-18
上传用户：chenxichenyue
This will sample all 8 A/D-channels by the continous mode. Each end of conversion will call an interrupt Routine, where the AD-channel is put to Port4[2..0] and the upper nibble of the result is put to Port4[7..4]. Port 4 is connected to the user LEDs of the FlashCan100P Evaluation-Board
标签： will D-channels conversion continous
上传时间： 2013-12-09
上传用户：zm7516678
