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ld: improve documentation

This commit is contained in:
King Kévin 2020-01-10 12:02:11 +01:00
parent 8baacc1c06
commit 077335ff03
2 changed files with 14 additions and 10 deletions
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12
application.ld
View File

@ -1,5 +1,8 @@
/* linker script for application running on STM32F103x8 micro-controller
* the STM32F103x8 has 64 KB of flash starting at 0x0800 0000, and 20 KB of RAM starting at 0x2000 0000
* the STM32F103xB has 128 KB of flash starting at 0x0800 0000, and 20 KB of RAM starting at 0x2000 0000
* STM32F103x8 most often have if fact 128 KB, instead of the specified and advertised 64 KB, like the STM32F103xB
* you can define the desired flash size here.
* the USB DFU bootloader will take the first 8 KB of flash, followed by the application
* the first 4 bytes of the RAM is reserved for the DFU magic word (DFU! to start DFU bootloader)
*/
@ -11,13 +14,12 @@ MEMORY
ram (rwx) : ORIGIN = 0x20000000 + 4, LENGTH = 20K - 4
}
PROVIDE(__application_beginning = ORIGIN(rom));
/* only provide application_end and/or flash_end if you want to force a flash size
i.e. STM32F103x8 most often have if fact 128 KB instead of the specified and advertised 64 KB
PROVIDE(__application_end = ORIGIN(rom) + LENGTH(rom));
PROVIDE(__flash_end = ORIGIN(rom) + LENGTH(rom));
else
/* if you want the firmware to use the flash size advertised by the micro-controller itself, use the following:
PROVIDE(__application_end = 0);
PROVIDE(__flash_end = 0);
if you want to enforce a flash size, because there is more flash than advertized by the micro-controller, use to following:
PROVIDE(__application_end = ORIGIN(rom) + LENGTH(rom));
PROVIDE(__flash_end = ORIGIN(rom) + LENGTH(rom));
*/
PROVIDE(__application_end = 0);
PROVIDE(__flash_end = 0);

12
bootloader.ld
View File

@ -1,5 +1,8 @@
/* linker script for application running on STM32F103x8 micro-controller
* the STM32F103x8 has 64 KB of flash starting at 0x0800 0000, and 20 KB of RAM starting at 0x2000 0000
* the STM32F103xB has 128 KB of flash starting at 0x0800 0000, and 20 KB of RAM starting at 0x2000 0000
* STM32F103x8 most often have if fact 128 KB, instead of the specified and advertised 64 KB, like the STM32F103xB
* you can define the desired flash size here.
* the USB DFU bootloader will take the first 8 KB of flash, followed by the application
* the first 4 bytes of the RAM is reserved for the DFU magic word (DFU! to start DFU bootloader)
*/
@ -11,13 +14,12 @@ MEMORY
ram (rwx) : ORIGIN = 0x20000000 + 4, LENGTH = 20K - 4
}
PROVIDE(__application_beginning = ORIGIN(rom) + LENGTH(rom));
/* only provide application_end and/or flash_end if you want to force a flash size
i.e. STM32F103x8 most often have if fact 128 KB instead of the specified and advertised 64 KB
PROVIDE(__application_end = __application_beginning + 128K - 8K);
PROVIDE(__flash_end = __application_beginning + 128K - 8K);
else
/* if you want the firmware to use the flash size advertised by the micro-controller itself, use the following:
PROVIDE(__application_end = 0);
PROVIDE(__flash_end = 0);
if you want to enforce a flash size, because there is more flash than advertized by the micro-controller, use to following:
PROVIDE(__application_end = ORIGIN(rom) + LENGTH(rom));
PROVIDE(__flash_end = ORIGIN(rom) + LENGTH(rom));
*/
PROVIDE(__application_end = 0);
PROVIDE(__flash_end = 0);