基于DSP在线程序加载的研究与实现

Research and Implementation of Online Program Loading Based on DSP

随着现代数字控制技术的发展,数字信号处理器(DSP)得到了广泛应用。程序通过JTAG下载的方式对交付后使用的产品进行软件升级极为不便,需要拆卸开盖操作,人力、物力耗费较大,效率低。因此,针对DSP的在线程序加载技术进行深入研究,实现了产品不脱离系统即可程序加载,具有很强的实用性。研究基于DSP芯片采用TMS320F2812开展,通过通信总线实现在线加载。利用现有产品进行实验验证,结果表明提出的DSP在线加载技术可以实现在不对产品进行拆卸的情况下在线升级DSP程序,不仅提高了工作效率,而且大大降低了产品的维护成本。

With the development of modern digital control technology,digital signal processor(DSP)has been widely used.It is very inconvenient for the program to upgrade the software of the product after delivery by JTAG download.It needs to dismantle and open the cover,which costs a lot of manpower and material resources and is inefficient.Therefore,the in-depth study of DSP online program loading technology has realized that the product can be loaded without breaking away from the system,which has strong practicability.Based on DSP chip,TMS320F2812 is used to carry out the research,and online loading is realized through communication bus.The results show that the proposed DSP online loading technology can upgrade the DSP program online without disassembling the product,which not only improves the work efficiency,but also greatly reduces the maintenance cost of the product.