stm32 remote upgrade

结束是开始

stm32 remote upgrade [Copy link]

The design idea is as follows: immediately judge the value of the battery backup area register when power is turned on. If it is equal, clear the register value and then upgrade the program. After upgrading the program, the software is reset. If it is not equal, do not upgrade and execute the key interrupt. Among them, the key interrupt executes the write register value. The problem now is: always running in the new program, how to jump out and continue the second, third, etc. upgrade?

Laspide

Remote upgrade requires two parties to establish contact first, then one party chooses and the other party accepts

chunyang

It is a problem to judge whether the upgrade is inappropriate by the value of the register. Where does the value come from? The conventional method is to use a special upgrade instruction. When the MCU receives the upgrade instruction, it executes the IAP program. It is simple and reliable.