djsundog
/
circuitpython
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
circuitpython/ports/atmel-samd/boards/samd51x20-bootloader.ld

13 lines
355 B
Plaintext
Raw Normal View History

atmel-samd: Turn on SAMD51 bootloader build layout. (#348)
2017-10-18 16:07:38 -04:00
/*
Correct _etext location; clean up .ld files 1. Make _extext and _sidata coincide. Old _etext location did not include .ARM.exidx sections, which were usually absent but not always. So flash data was copied to RAM in wrong place. 2. Use decimal constants with "K" and "M" suffixes in .ld files instead of hex constants, to make them easier to read and check for accuracy.
2018-02-09 10:06:14 -05:00
GNU linker script for SAMD51x20 (1MB flash, 256K RAM)
atmel-samd: Turn on SAMD51 bootloader build layout. (#348)
2017-10-18 16:07:38 -04:00
*/
/* Specify the memory areas */
MEMORY
{
Turn on nvm in 3.0. Its 256b on M0 and 8k on M4 to match flash erase sizes. Fixes #758
2018-04-12 21:13:40 -04:00
/* Leave 16KiB for the bootloader, 512k for the filesystem and 8k for user config data. */
FLASH (rx) : ORIGIN = 0x00000000 + 16K, LENGTH = 1M - 16K - 512K - 8K
Correct _etext location; clean up .ld files 1. Make _extext and _sidata coincide. Old _etext location did not include .ARM.exidx sections, which were usually absent but not always. So flash data was copied to RAM in wrong place. 2. Use decimal constants with "K" and "M" suffixes in .ld files instead of hex constants, to make them easier to read and check for accuracy.
2018-02-09 10:06:14 -05:00
RAM (xrw) : ORIGIN = 0x20000000, LENGTH = 256K
atmel-samd: Turn on SAMD51 bootloader build layout. (#348)
2017-10-18 16:07:38 -04:00
}
Parameterize linker script
2019-10-20 23:50:12 -04:00
INCLUDE "samd51-common.ld"