Due to the continuous upgrading and iteration of software products, many off-site software upgrades have been brought about. In order to improve the convenience and reliability of software upgrades after product delivery, based on DSP secondary boot technology, a DSP software online upgrade method using TMS320F28235 is proposed. The architecture of the online upgrade hardware platform is described, the DSP software secondary boot loading process is introduced, the generation method of upgrade files and program update instructions are explained, and the transmission process of upgrade files and FLASH programming process are described in detail. This method can achieve online upgrade of DSP software without changing the hardware state and without using an emulator. In addition, this method can effectively avoid upgrade failures due to transmission problems, improving the stability and success rate of online upgrade.
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Zhifeng Gan (2024) studied this question.
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