STM32，5110液晶顯示聲納探魚器200KHz，帶電路圖，精確到厘米 MC34063升壓，大聲壓發(fā)射，實(shí)際板子上濾波電路沒(méi)要（電路圖上的濾波電阻電容電感沒(méi)焊，開路或者短路）。一般200KHz的換能器在水里面的耦合比較好，在空氣中發(fā)射出來(lái)的（或者接收的）強(qiáng)度很低。 用的MOSFET Relay，contact和release時(shí)間都可以做到很小，不過(guò)選的是比較低端器件，所以最近測(cè)量距離為70cm。 開源啦開源啦 架構(gòu)為狀態(tài)機(jī)+任務(wù)流，Task都是放在函數(shù)指針數(shù)組里面的 Task分兩種，ROUTINE的和錯(cuò)誤處理的 5110液晶的SPI用的DMA 基本上STM32和C語(yǔ)言高階的特征都用上了，稍微修改直接可以商用 Open Issue 偶爾會(huì)hardware fault或者memory fault，然后watchdog重啟， 應(yīng)該比較好解決，仔細(xì)檢查下就好 有什么問(wèn)題代碼的file comment里面有我聯(lián)系地址 有能搞到好的器件也請(qǐng)知會(huì)我，多謝了 接下來(lái)準(zhǔn)備把它裝到船模上，用以前四軸的那套東西，就看什么時(shí)候有時(shí)間了
上傳時(shí)間： 2013-10-28
上傳用戶：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.
上傳時(shí)間： 2013-11-15
上傳用戶：zouxinwang
對(duì)于Intel x86 PC , 開啟電源后, 機(jī)器就會(huì)開始執(zhí)行ROM BIOS的一系列系統(tǒng)測(cè)試動(dòng)作，包括檢查RAM，keyboard，顯示器，軟硬磁盤等等。執(zhí)行完bios 的系統(tǒng)測(cè)試之后，緊接著控制權(quán)會(huì)轉(zhuǎn)移給ROM 中的啟動(dòng)程序(ROM bootstrap ROUTINE)；這個(gè)程序會(huì)將磁盤上的第0軌第0 扇區(qū)（叫boot sector 或MBR ，系統(tǒng)的引導(dǎo)程序就放在此處）讀入內(nèi)存中，并放到自0x07C0:0x0000 開始的512 個(gè)字節(jié)處.
上傳時(shí)間： 2014-12-30
上傳用戶：pei5
外部SRAM與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.
標(biāo)簽： INTEGRATED C8051F000 Copyright PRODUCTS
上傳時(shí)間： 2014-11-29
上傳用戶：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.
標(biāo)簽： firmware mouse translates translator
上傳時(shí)間： 2015-04-26
上傳用戶：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.
標(biāo)簽： least-squares unconstrained Statisti Applied
上傳時(shí)間： 2015-05-14
上傳用戶：aig85
MSC 1210 A/D Conversion for 1 input signals (-2.5V ... +2.5V) Inputs pairs AIN0-AIN1 read in an interrupt service ROUTINE
標(biāo)簽： Conversion 2.5 AIN signals
上傳時(shí)間： 2014-01-25
上傳用戶：gtzj
實(shí)用單片機(jī)系統(tǒng)第三版 本包包還程序閱讀器souceinsight3.5 以及比較完整得單片機(jī)系統(tǒng)，類似與大家知道得UCOS，但又有很大不同！本包是我朋友所作現(xiàn)在我?guī)椭鹜茝V。“現(xiàn)在這段時(shí)間RTOS非常熱，可很多人往往為了用RTOS而用RTOS，其實(shí)很多很多的項(xiàng)目一般的設(shè)計(jì)都已經(jīng)可以了的，RTOS顯得有些畫蛇添足。對(duì)于一般的設(shè)計(jì)思路，往往要做很多的工作，甚至整個(gè)軟件的結(jié)構(gòu)不知道怎么搭建，McuSystem主要就是解決以上的問(wèn)題提出的，真正為實(shí)用服務(wù)的一個(gè)系統(tǒng)，它全部用C語(yǔ)言編寫，結(jié)構(gòu)非常清晰，核心是它的消息機(jī)制，解決很多普通設(shè)計(jì)中的一些問(wèn)題，包括并發(fā)事件問(wèn)題。并且這個(gè)消息還支持優(yōu)先級(jí)。我相信只要具有一般C語(yǔ)言水平的都能很快的看懂。系統(tǒng)用Source Insight做編輯，keil為編譯，DPFLASH下載，這個(gè)成了標(biāo)準(zhǔn)配置，目錄建在D:\MCU51\。這個(gè)程序是讓大家去修改，以適合自己的平臺(tái)用。現(xiàn)在簡(jiǎn)單的說(shuō)一下文件的構(gòu)成:boot.c是入口程序，define.h是一些宏定義，system.c是系統(tǒng)內(nèi)核，包括節(jié)拍，消息都在這個(gè)里面，ROUTINE.c為例行程序，如鍵盤，數(shù)碼管顯示都在這個(gè)里面控制，鍵盤是采用掃描的。”
標(biāo)簽： souceinsight 3.5 用單片機(jī) 比較
上傳時(shí)間： 2015-12-29
上傳用戶：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.
標(biāo)簽： illustrates application program written
上傳時(shí)間： 2013-12-18
上傳用戶：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
標(biāo)簽： will D-channels conversion continous
上傳時(shí)間： 2013-12-09
上傳用戶：zm7516678
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