Do not use writeable flash regions for persistent storage

They don't play well with DFU.
2020-04-29 12:52:31 +02:00
parent 20674c518e
commit 6247098069
3 changed files with 19 additions and 56 deletions
--- a/nrf52840dk_layout.ld
+++ b/nrf52840dk_layout.ld
@@ -3,8 +3,10 @@
 */

 MEMORY {
-  /* The application region is 64 bytes (0x40) */
-  FLASH (rx) : ORIGIN = 0x00040040, LENGTH = 0x000BFFC0
+  /* The application region is 64 bytes (0x40) and we reserve 0x40000 at the end
+   * of the flash for the persistent storage.
+   */
+  FLASH (rx) : ORIGIN = 0x00040040, LENGTH = 0x0007FFC0
  SRAM (rwx) : ORIGIN = 0x20020000, LENGTH = 128K
 }