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    LUO Qiufeng,YE Hui,LI Yong,GAO Yuan.SCI online programming for DSP28335 embedded system[J].Journal of Hebei University of Science and Technology,2013,34(4):318-324
    DSP28335嵌入式系統的SCI在線編程方法實現
    SCI online programming for DSP28335 embedded system
      
    DOI:10.7535/hbkd.2013yx04012
    中文關鍵詞:  DSP28335  SCI引導  API函數  在線編程
    英文關鍵詞:DSP28335  SCI_Boot  API function  online programming
    基金項目:
    Author NameAffiliationE-mail
    LUO Qiufeng Department of UAV, Nanjing University of Aeronautics & Astronautics YQWL2002@126.com 
    YE Hui Department of Automation, Nanjing University of Aeronautics & Astronautics  
    LI Yong Department of Automation, Nanjing University of Aeronautics & Astronautics  
    GAO Yuan Department of Automation, Nanjing University of Aeronautics & Astronautics  
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    中文摘要:
          為了解決嵌入式系統主流控制器DSP28335程序升級維護不便、成本高的問題,提出了一種通過異步串行通信接口SCI向片內FLASH在線編程的方法。將特定的GPIO引腳狀態配置為SCI引導模式,DSP芯片上電自檢后調用BootLoader中的SCI_Boot函數,將燒寫控制程序通過SCI口下載到片上SARAM,然后調用API功能函數將用戶程序固化到FLASH。實驗結果表明,該方法有效可行,簡單方便,可脫離JTAG仿真器進行操作,提高了傳輸距離,降低了成本。
    英文摘要:
          In order to solve the problems of maintenance inconvenience and higher cost in the mainstream embedded DSP28335 system, this paper proposes an online on chip FLASH programming method through asynchronous serial communication interface (SCI),. The particular state of the GPIO pins is configured as a SCI boot mode and the DSP chips calls SCI_Boot function of BootLoader after power on self test, Then, the burning control program is downloaded to the on chip SARAM by the SCI_interface and calls the API functions to the user program to burned into the FLASH. The experiment shows that the method is effective and feasible, simple and convenient, can be broken away from the JTAG emulator for operation, which has improved the transmission distance and reduced the costs.
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