tinygo/targets/nrf52840-s140v7.ld
Ayke van Laethem e69131c0d3 nrf: expose the RAM base address
The RAM base address is needed during SoftDevice initialization. So far,
the same magic value has been used in aykevl/go-bluetooth and in TinyGo,
but this should be configured in only one place.

This will have additional benefits in the future:

  * It is currently set to 0x39c0, which is around 14.5kB. Most nrf51822
    chips have only 16kB of RAM, so this is way too much for those
    chips.
  * LLD in LLVM 11 allows expressions in the MEMORY part of linker
    scripts, which will allow overriding the SoftDevice RAM area with a
    linker flag, which might come in handy.
2020-05-26 18:49:44 +02:00

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Text

MEMORY
{
FLASH_TEXT (rw) : ORIGIN = 0x00000000 + 0x00027000, LENGTH = 1M - 0x00027000
RAM (xrw) : ORIGIN = 0x20000000 + 0x000039c0, LENGTH = 256K - 0x000039c0
}
_stack_size = 4K;
/* This value is needed by the Nordic SoftDevice. */
__app_ram_base = ORIGIN(RAM);
INCLUDE "targets/arm.ld"