Difference between revisions of "DFU Bootloader"
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| Line 7: | Line 7: | ||
! | ! | ||
! | ! | ||
| − | ! | + | ! Start Addr |
| + | ! End Addr | ||
! Size (hex) | ! Size (hex) | ||
! Size (kb) | ! Size (kb) | ||
| Line 13: | Line 14: | ||
| End | | End | ||
| --> | | --> | ||
| + | | 0x8078000 | ||
| 0x8080000 | | 0x8080000 | ||
| 0x8000 | | 0x8000 | ||
| − | | 32kB | + | | align=right | 32kB |
|- | |- | ||
| | | | ||
| | | | ||
| + | | 0x8070000 | ||
| 0x8078000 | | 0x8078000 | ||
| 0x8000 | | 0x8000 | ||
| Line 25: | Line 28: | ||
| | | | ||
| | | | ||
| + | | 0x8068000 | ||
| 0x8070000 | | 0x8070000 | ||
| 0x8000 | | 0x8000 | ||
| Line 31: | Line 35: | ||
| | | | ||
| | | | ||
| + | | 0x8060000 | ||
| 0x8068000 | | 0x8068000 | ||
| 0x8000 | | 0x8000 | ||
| Line 37: | Line 42: | ||
| | | | ||
| | | | ||
| + | | 0x8058000 | ||
| 0x8060000 | | 0x8060000 | ||
| 0x8000 | | 0x8000 | ||
| Line 43: | Line 49: | ||
| | | | ||
| | | | ||
| + | | 0x8050000 | ||
| 0x8058000 | | 0x8058000 | ||
| 0x8000 | | 0x8000 | ||
| Line 49: | Line 56: | ||
| | | | ||
| | | | ||
| + | | 0x8048000 | ||
| 0x8050000 | | 0x8050000 | ||
| 0x8000 | | 0x8000 | ||
| Line 55: | Line 63: | ||
| | | | ||
| | | | ||
| + | | 0x8040000 | ||
| 0x8048000 | | 0x8048000 | ||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| 0x8000 | | 0x8000 | ||
| 32kB | | 32kB | ||
Revision as of 04:17, 31 May 2021
All STM32 MCUs have a built-in bootloader which will allow reflashing. The Boot0 pin is used to toggle between "normal" boot and this bootloader. Unfortunately this process can not be controlled without manipulating the Boot0 pin, so if we want to control this from our application, we will have to implement our own bootloader.
Overall Architecture
| Start Addr | End Addr | Size (hex) | Size (kb) | ||
|---|---|---|---|---|---|
| End | --> | 0x8078000 | 0x8080000 | 0x8000 | 32kB |
| 0x8070000 | 0x8078000 | 0x8000 | 32kB | ||
| 0x8068000 | 0x8070000 | 0x8000 | 32kB | ||
| 0x8060000 | 0x8068000 | 0x8000 | 32kB | ||
| 0x8058000 | 0x8060000 | 0x8000 | 32kB | ||
| 0x8050000 | 0x8058000 | 0x8000 | 32kB | ||
| 0x8048000 | 0x8050000 | 0x8000 | 32kB | ||
| 0x8040000 | 0x8048000 | 0x8000 | 32kB | ||
| 0x8038000 | 0x8000 | 32kB | |||
| 0x8030000 | 0x8000 | 32kB | |||
| 0x8028000 | 0x8000 | 32kB | |||
| 0x8020000 | 0x8000 | 32kB | |||
| 0x8018000 | 0x8000 | 32kB | |||
| 0x8010000 | 0x8000 | 32kB | |||
| 0x8008000 | 0x8000 | 32kB | |||
| Begin | --> | 0x8000000 | 0x8000 | 32kB |