Host computer development (firmware download software requirement analysis)

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        There are many kinds of upper computers , In order to practice and learn , We might as well write a firmware download software to try . Software development involves requirements analysis 、 Architecture design 、 Detailed design and coding 、 Test five links . The development sequence is generally arranged like this , Of course, if something goes wrong , Regression processing is also common . Of course V General requirements for type development , Each link needs a corresponding test link , Because it is mainly personal development , So this link is omitted for the time being .

         Different embedded solutions , The download scheme is also different . If it is 51 perhaps stm32 Or something like that , You usually need to use jtag Download ; If it is linux Or something like that , Put the file directly copy To sd card , Or use the network to download . However , about stm32 For this kind of equipment , Use jtag Downloading is a lot of trouble , This aspect will be described one by one later .

1、jtag Download disadvantages

        jtag It occupies a large area of the development board , At the same time, there is a risk of being rewritten by someone , There are great hidden dangers in using the above .

2、 You need to download professional development software

         If it is jtag download , It is generally necessary to install professional development software , This is quite troublesome for after-sales personnel . Besides , Many professional development software is provided with authorization and certification , Just to download the firmware code, you have to buy a lot of professional software , This is also very uneconomical from an economic point of view .