Change SRAM mapping and increase SRAM allocated to ARC core

yashaswini.hanji@intel.com · yashaswini-hanji · commit 562cd8467819 · 2017-04-04T09:54:43.000-07:00
-increase SRAM to 40K
-change SRAM start address
-increase heap size to 16K
-this change is needed for BLE scan for SensorTag
diff --git a/variants/arduino_101/linker_scripts/flash.ld b/variants/arduino_101/linker_scripts/flash.ld
@@ -40,7 +40,7 @@ OUTPUT_FORMAT("elf32-littlearc", "elf32-bigarc", "elf32-littlearc")
 MEMORY
     {
     FLASH                 (rx) : ORIGIN = 0x40034000, LENGTH = 152K
-    SRAM                  (wx) : ORIGIN = 0xa800e000, LENGTH = 24K
+    SRAM                  (wx) : ORIGIN = 0xa800a000, LENGTH = 40K
     DCCM                  (wx) : ORIGIN = 0x80000000, LENGTH = 8K
     }
 
@@ -52,7 +52,7 @@ __firq_stack_size = 1024;
 
 /* Minimum heap size to allocate
  * Actual heap size might be bigger due to page size alignment */
-__HEAP_SIZE_MIN = 8192;
+__HEAP_SIZE_MIN = 16384;
 /* This should be set to the page size used by the malloc implementation */
 __PAGE_SIZE = 4096;
 

Original file line number	Diff line number	Diff line change
`@@ -40,7 +40,7 @@ OUTPUT_FORMAT("elf32-littlearc", "elf32-bigarc", "elf32-littlearc")`
`40`	`40`	`MEMORY`
`41`	`41`	`{`
`42`	`42`	`FLASH (rx) : ORIGIN = 0x40034000, LENGTH = 152K`
`43`		`- SRAM (wx) : ORIGIN = 0xa800e000, LENGTH = 24K`
	`43`	`+ SRAM (wx) : ORIGIN = 0xa800a000, LENGTH = 40K`
`44`	`44`	`DCCM (wx) : ORIGIN = 0x80000000, LENGTH = 8K`
`45`	`45`	`}`
`46`	`46`
`@@ -52,7 +52,7 @@ __firq_stack_size = 1024;`
`52`	`52`
`53`	`53`	`/* Minimum heap size to allocate`
`54`	`54`	`* Actual heap size might be bigger due to page size alignment */`
`55`		`-__HEAP_SIZE_MIN = 8192;`
	`55`	`+__HEAP_SIZE_MIN = 16384;`
`56`	`56`	`/* This should be set to the page size used by the malloc implementation */`
`57`	`57`	`__PAGE_SIZE = 4096;`
`58`	`58`