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STM32，5110液晶顯示聲納探魚器200KHz，帶電路圖，精確到厘米 MC34063升壓，大聲壓發射，實際板子上濾波電路沒要（電路圖上的濾波電阻電容電感沒焊，開路或者短路）。一般200KHz的換能器在水里面的耦合比較好，在空氣中發射出來的（或者接收的）強度很低。 用的MOSFET Relay，contact和release時間都可以做到很小，不過選的是比較低端器件，所以最近測量距離為70cm。 開源啦開源啦 架構為狀態機+任務流，Task都是放在函數指針數組里面的 Task分兩種，Routine的和錯誤處理的 5110液晶的SPI用的DMA 基本上STM32和C語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hardware fault或者memory fault，然后watchdog重啟， 應該比較好解決，仔細檢查下就好 有什么問題代碼的file comment里面有我聯系地址 有能搞到好的器件也請知會我，多謝了 接下來準備把它裝到船模上，用以前四軸的那套東西，就看什么時候有時間了
上傳時間： 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.
上傳時間： 2013-11-15
上傳用戶：zouxinwang
對于Intel x86 PC , 開啟電源后, 機器就會開始執行ROM BIOS的一系列系統測試動作，包括檢查RAM，keyboard，顯示器，軟硬磁盤等等。執行完bios 的系統測試之后，緊接著控制權會轉移給ROM 中的啟動程序(ROM bootstrap Routine)；這個程序會將磁盤上的第0軌第0 扇區（叫boot sector 或MBR ，系統的引導程序就放在此處）讀入內存中，并放到自0x07C0:0x0000 開始的512 個字節處.
上傳時間： 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.
標簽： INTEGRATED C8051F000 Copyright PRODUCTS
上傳時間： 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.
標簽： firmware mouse translates translator
上傳時間： 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.
標簽： least-squares unconstrained Statisti Applied
上傳時間： 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
標簽： Conversion 2.5 AIN signals
上傳時間： 2014-01-25
上傳用戶：gtzj
實用單片機系統第三版 本包包還程序閱讀器souceinsight3.5 以及比較完整得單片機系統，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在我幫助起推廣。“現在這段時間RTOS非常熱，可很多人往往為了用RTOS而用RTOS，其實很多很多的項目一般的設計都已經可以了的，RTOS顯得有些畫蛇添足。對于一般的設計思路，往往要做很多的工作，甚至整個軟件的結構不知道怎么搭建，McuSystem主要就是解決以上的問題提出的，真正為實用服務的一個系統，它全部用C語言編寫，結構非常清晰，核心是它的消息機制，解決很多普通設計中的一些問題，包括并發事件問題。并且這個消息還支持優先級。我相信只要具有一般C語言水平的都能很快的看懂。系統用Source Insight做編輯，keil為編譯，DPFLASH下載，這個成了標準配置，目錄建在D:\MCU51\。這個程序是讓大家去修改，以適合自己的平臺用。現在簡單的說一下文件的構成:boot.c是入口程序，define.h是一些宏定義，system.c是系統內核，包括節拍，消息都在這個里面，Routine.c為例行程序，如鍵盤，數碼管顯示都在這個里面控制，鍵盤是采用掃描的。”
標簽： souceinsight 3.5 用單片機 比較
上傳時間： 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.
標簽： illustrates application program written
上傳時間： 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
標簽： will D-channels conversion continous
上傳時間： 2013-12-09
上傳用戶：zm7516678
