針對嵌入式產品程序更新問題,提出了一種基于IAP技術的STM32單片機在線固件升級方案,設計了STM32單片機最小系統硬件電路和USB轉串口通信電路,并給出了Bootloader程序、APP程序、PC上機程序的實現流程.實驗結果表明,該方案具有簡單實用、穩定性高、維護成本低和設備使用效率高的特點,適用于嵌入式產品升級.For the problem of updating embedded products program,an online firmware upgrade scheme of STM32 single chip microcomputer based on IAP technology is proposed.This scheme not only elaborates the principle of IAP technology in detail but also provides the design of the minimum system hardware circuit of STM32 MCU,the design of USB for serial communication circuit,and the implementation flow of Bootloader program,APP program and PC program.The experiment results show that the scheme is simple,practical and highly stable.In addition,it can be used to actual embedded product upgrading,significantly reducing maintenance costs and improving the efficiency of equipment.
上傳時間： 2022-03-25
上傳用戶：
S32K1xx Series Reference Manual 用戶手冊--2029頁 Supports S32K116, S32K118, S32K142, S32K144, S32K146, and S32K148S32K是一款符合AEC-Q100規范、基于32位ARM Cortex-M4F和Cortex-M0+內核的MCU，適用于通用汽車和高可靠性工業應用。The S32K1xx product series further extends the highly scalable portfolio of Arm? Cortex?-M0+/M4F MCUs in the automotive industry. It builds on the legacy of the KEA series, while introducing higher memory options alongside a richer peripheral set extending capability into a variety of automotive applications. With a 2.70–5.5 V supply and focus on automotive environment robustness, the S32K product series devices are well suited to a wide range of applications in electrically harsh environments, and are optimized for cost-sensitive applications offering low pin-count options. The S32K product series offers a broad range of memory, peripherals, and package options. It shares common peripherals and pin counts, allowing developers to migrate easily within an MCU family or among the MCU families to take advantage of more memory or feature integration. This scalability allows developers to use the S32K product series as the standard for their end product platforms, maximizing hardware and software reuse and reducing time to market
標簽： S32K116 S32K118 S32K142 S32K144
上傳時間： 2022-04-16
上傳用戶：jason_vip1
【例3.1]4位全加器module adder 4（cout，sum i na，i nb，cin）；output[3：0]sum output cout；input[3：0]i na，i nb；input cin；assign（cout，suml=i na +i nb+ci n；endmodule【例3.2]4位計數器module count 4（out，reset，clk）；output[3：0]out；input reset，cl k；regl 3：01 out；always@posedge clk）
標簽： verilog
上傳時間： 2022-06-16
上傳用戶：canderile
INTRODUCTION In the past, adding speech recording and playback capability to a product meant using a digital signal processor or a specialized audio chip. Now, using a simplified Adaptive Differential Pulse Code Modulation(ADPCM) algorithm, these audio capabilities can be added to any PICmicro device. This application note will cover the ADPCM compression and decompression algorithms, performance comparison of all PICmicro devices, and an application using a PIC16C72 micro-controller.DEFINITION OF TERMS step size -value of the step used for quantization of ana-log signals and inverse quantization of a number of steps.quantization -the digital form of an analog input signal is represented by a finite number of steps.adaptive quantization -the step size of a quantizer is dramatically changed with time in order to adapt to a changing input signal.inverse quantizer -a finite number of steps is converted into a digital representation of an analog signal.
上傳時間： 2022-06-20
上傳用戶：
摘要：介紹在Linux操作系統環境下Socket網絡編程的原理、流程和最終實現。編程采用客戶端/服務器模式。提出解決多個客戶端連接服務器時無法處理I/0多路復用問題的方法。提出通過最小化報文傳輸來減少傳輸時廷，為Bandwidth Delay Product調節TCP窗口，實現充分利用帶寬提高Linux的Socket性能。在實際網絡傳輸環境復雜多變的情況下，達到優化網絡傳輸性能的目的。關鍵詞：linux；性能優化；Socket；select（）1引言隨著Internet的日益發展和普及，網絡在嵌入式系統中應用非常廣泛，越來越多的嵌入式設備采用Linux操作系統。Linux是一個源代碼公開的免費操作系統，具有強移植性"，所以對基于Linux的Socket網絡編程的研究越來越重要。2Socket簡介在Linux中的網絡編程通過Socket接口進行，是一種特殊的I/O，也是一種特殊的文件描述符。Socket是使用標準Linux文件符（file descriptor）和其他程序通信的方式。這里Socket 編程采用客戶/服務器模式如圖1所示。
上傳時間： 2022-06-23
上傳用戶：
Legal Disclaimer Lenze Semiconductor reserves the right to make changes without further notice to any products herein to improve reliability, function or design. Lenze Semiconductor disclaims any and all liability for any errors, inaccuracies or incompleteness contained herein or in any other disclosure relating to any product.Lenze Semiconductor does not assume any liability arising out of the application or use of any product or circuit described herein; neither does it convey any license under its patent rights, nor the rights of others The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications. Customers using or selling Lenze Semiconductor products not expressly indicated for use in such applications do so entirely at their own risk and agree to fully indemnify Lenze Semiconductor for any damages arising or resulting from such use or sale.
上傳時間： 2022-06-25
上傳用戶：
nordic,芯片,規格nordic,芯片規格書nRF52832 Product Specification v1.4
上傳時間： 2022-06-26
上傳用戶：
1. General Description BL-M3362NS1 product is designed base on Broadcom BCM43362 chipset. It operates at 2.4GHz band and supports IEEE802.11b/g/n 1T1Rwith wireless data rate up to 72.2Mbps. It supports IEEE802.11isafety protocol, along with IEEE802.11e standard service quality. It supports standard interfaces SDIOV2.0(50 MHz,4-bit and1-bit) and generic SPI(up to 50 MHz), Integrated ARM Cortex?-M3 CPUwith on-chip memory enables running IEEE802.11 firmware that can be field-upgraded with future features.2. The range of applying Imaging platforms(printers, digital still cameras, digital picture frames)Consumer electronic devices(DTV, DVDplayers, Blu-ray players. etc.)Gaming platforms Carinformation MiFi/Mobile Routes Smart PAD Set-TopBoxes
標簽： wifi
上傳時間： 2022-07-04
上傳用戶：
VIP專區-嵌入式/單片機編程源碼精選合集系列（156）資源包含以下內容：1. 《嵌入式應用程序開發綜合試驗9例》含有9個嵌入式應用實踐源程序。.2. NiosII NiosII!! SOPC CRC32 SOPC SOPC 自定義外設.3. 一個電話本的程序.4. 嵌入式minigui 中自定義控件的應用實例。不下后悔！.5. minigui 時間控件的使用方法.6. 嵌入式linux 設備驅動程序.7. uart-I2C, working on PIC18F2420.8. 基于mips cpu,在u-boot系統下磁盤驅動程序。.9. 可以應用到IAR EWARM-EV V5.20破解 使用方法： 1：首先用iarid.exe產生ID 2：使用iarkg.exe產生lic文件.10. 嵌入式開發前景和趨勢.11. 嵌入式視頻有下載器下載方法及一些基本的調試技巧。.12. 同濟大學嵌入式學習文檔.13. 轉載其他網站的資料與大家分享.14. LED點陣顯示屏掃描程序.15. altera公司開發銷售的DE2開發平臺原理圖.16. 基于飛斯卡爾MC9S08QG8的基本程序開發代碼.17. 本程序中用到DS1302以及液晶等模塊.18. 一個垃圾壓縮車的PLC程序。采用X端口作為模擬量轉換后的數據量輸入口。這種方法不需要買模擬量模塊.19. 這是一個信號發生器得程序.20. 這個程序可以用作寄存器的使用.21. FAT32文件應用.22. 電源管理代碼 基于linux2.6.10！apm方式的電源管理！很好的資料！做arm平臺使用.23. I2C zongxian 總線 親自編譯.24. 用Verilog 實現將比特流數據轉化為SPI協議數據的適配器.25. 最新F2系列的部分外圍模塊中文PDF,來自USER GUIDE的翻譯.26. 單詞計算器,可以統計你輸入的單詞的字母數有多少個等多個程序.27. FIBER AND wire product designed guider..28. xilin,ise_9.01的使用.29. ISE、Keil_C.30. 一本不錯的數字圖像處理書（岡薩雷斯中文版）總共有三個壓縮文件需要放在一起解壓縮.31. miniARM嵌入式web主程序,需要在運行miniarm.32. 單片機操作ocmj12232c-1屏的源代碼.33. ISP1582 原理圖.34. x-wrt is the GUI config tool for openwrt,which is a open project about wireless Router.35. 首先介紹了合成孔徑雷達(SAR)的特點.36. tms320vc5509a usb boot.37. 基于Altera fpga 的軟核 nios2的串口調試代碼.38. cip51 i2c.39. 此源碼為ocm12864系列字符液晶顯示模塊KEIL uVision3 for ARM.40. 此源碼為KEIL uVision3 for ARM 的ocm12864系列字符液晶顯示模塊。.
上傳時間： 2013-06-27
上傳用戶：eeworm
