Fix KL05Z GCC_ARM linker script

adamgreen · adamgreen · commit a1653f27085e · 2014-12-23T19:03:09.000-08:00
Issue originally reported on mbed site here: https://developer.mbed.org/questions/5695/FRDM-KL05z-hardfault-when-compiled-with-/ The RAM base address was incorrectly set to the beginning of RAM instead of at a 0xC0 byte offset to reserve room for the interrupt vectors. Without this fix, the global variables and the interrupt vectors were occupying the same space in RAM once the user enabled the timer interrupt. The user who originally reported the issue on the mbed site has tested this fix and verified that it corrected the hard fault issue that they were encountering.
diff --git a/libraries/mbed/targets/cmsis/TARGET_Freescale/TARGET_KLXX/TARGET_KL05Z/TOOLCHAIN_GCC_ARM/MKL05Z4.ld b/libraries/mbed/targets/cmsis/TARGET_Freescale/TARGET_KLXX/TARGET_KL05Z/TOOLCHAIN_GCC_ARM/MKL05Z4.ld
@@ -6,7 +6,7 @@ MEMORY
 {
   VECTORS (rx) : ORIGIN = 0x00000000, LENGTH = 0x00000410
   FLASH (rx) : ORIGIN = 0x00000410, LENGTH = 32K - 0x00000410
-  RAM (rwx) : ORIGIN = 0x1FFFFC00, LENGTH = 4K - 0xC0
+  RAM (rwx) : ORIGIN = 0x1FFFFCC0, LENGTH = 4K - 0xC0
 }
 
 /* Linker script to place sections and symbol values. Should be used together

Original file line number	Diff line number	Diff line change
`@@ -6,7 +6,7 @@ MEMORY`
`6`	`6`	`{`
`7`	`7`	`VECTORS (rx) : ORIGIN = 0x00000000, LENGTH = 0x00000410`
`8`	`8`	`FLASH (rx) : ORIGIN = 0x00000410, LENGTH = 32K - 0x00000410`
`9`		`- RAM (rwx) : ORIGIN = 0x1FFFFC00, LENGTH = 4K - 0xC0`
	`9`	`+ RAM (rwx) : ORIGIN = 0x1FFFFCC0, LENGTH = 4K - 0xC0`
`10`	`10`	`}`
`11`	`11`
`12`	`12`	`/* Linker script to place sections and symbol values. Should be used together`