Where is the source code of stm32bootloader?

xefon

Where is the source code of stm32bootloader? [Copy link]

                                 I accidentally overwrote the BOOTLOADER that was originally embedded in the chip. How can I find the source code? I want to find the code and download it.

lingr

                                 BOOTLOADER is programmed in at the factory and there is no way to write to this area except for the first time.

xinling1027

                                 You can find a chip that has not been erased, read its Bootloader, and then write it back to your chip.

riscbbs

                                 The stm32 bootloader should not be overwritten by the user, otherwise it will be bad.

bluecrane

The bootloader protocol says that the bootloader is placed in the first 2K bytes of RAM (as for why it says it is placed in RAM, I don't clear it, isn't the RAM data lost when power is off???), when I defined the variable of the specified address, I placed it in the first 2K bytes of RAM, and then the bootloader didn't work, that is, the switch could not switch from System Memory mode. So I suspect that the bootloader may have been overwritten,
and is the bootloader really placed in RAM?
It should be placed in ROM, in the RAM mapped at power on, right?

xxc5552004

The bootloader protocol says that the bootloader is placed in the first 2K bytes of RAM (as for why it says it is placed in RAM and I don't clear it, doesn't RAM lose data when power is off???), when I defined the variable with the specified address, I placed it in the first 2K bytes of RAM, and then the bootloader didn't work, just the switch...

How can the bootloader be placed in RAM? Which bootloader protocol are you looking at? Please indicate the source.

sdaac

                                 2K, probably from LM...

yangrui7202

                                 I also think it shouldn't be so easy to override, at least users can't override it, otherwise it will be very troublesome

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                                 good

dowoo

                                 BOOTLOADER should only be set by the manufacturer and should not be modifiable by the user

xhy

                                 Just like what the moderator said, how did the host write this area?

20041302149

BOOTLOADER is programmed in at the factory and there is no way to write to this area except for the first time.

Is it OTP? Can't write 1, and can't write 0?

topcool99

Is it OTP? Can't write 1, and can't write 0?

It is not a question of writing "1" or "0". For the user, this space is write-only, equivalent to ROM, and the user cannot write anything into it.