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Initial modification to move bootloader data after the application

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This commit is contained in:
Szczepan Zalega
2019-08-22 12:52:50 +02:00
parent efddd2f3a8
commit 35e52f4968
4 changed files with 35 additions and 13 deletions
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12
targets/stm32l432/linker/stm32l4xx.ld
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@@ -16,21 +16,27 @@ _MIN_STACK_SIZE = 0x400;
Memory layout of device:
20+2 KB 198KB-2KB -8 38 KB
| bootloader | application | secrets/data |
----------->
len | 20 KB/10p| 196KB-8-8/98p | 8B | 2kB/1p | 38 KB/19p |
pos | 0->20 KB | 20->216KB-8-8 | 216KB-8-8->216KB-8 | 216kB -> 218 kB | 218->256 KB |
posp | 0-10 | 10-113 | 113-113 | 113-114 | 113-128 |
desc | bootloader | application | firmware version | bootloader data | secrets/data |
Last 8 bytes in application space are occupied by bootloader flags - app
authorization and bootloader activation flag.
Previous 8 bytes are application version.
*/
/* Current firmware version number
Should be equal to (APPLICATION_END_ADDR-8) from targets/stm32l432/src/memory_layout.h:40 */
_version_start = 0x08000000 + (128-19)*2048-8-8;
_version_start = 0x08000000 + 216*1024-8-8;
/* flash length is (APPLICATION_END_PAGE-20*1024), where 20K is bootloader */
MEMORY
{
flash (rx) : ORIGIN = 0x08005000 + 2K, LENGTH = 198K - 8 - 8 - 2K
flash_v (rx) : ORIGIN = 0x08000000 + (128-19)*2048 - 8 - 8, LENGTH = 8
flash (rx) : ORIGIN = 0x08000000 + 20K, LENGTH = 196K - 8 - 8
flash_v (r) : ORIGIN = 0x08000000 + 196K - 8 - 8, LENGTH = 8
ram (xrw) : ORIGIN = 0x20000000, LENGTH = 48K
sram2 (rw) : ORIGIN = 0x10000000, LENGTH = 16K
}