Move the FreeRTOS heap to RAM2 and use all available space there

The available heap now has a size of 16KB, which is the size of the second SRAM bank on LPC1764
lnls-dig · Sep 30, 2015 · 330d159 · 330d159
1 parent 7ac1625
commit 330d159
Show file tree

Hide file tree

Showing 2 changed files with 2 additions and 2 deletions.
diff --git a/FreeRTOS/heap_4.c b/FreeRTOS/heap_4.c
@@ -100,7 +100,7 @@ task.h is included from an application file. */
 #if( configAPPLICATION_ALLOCATED_HEAP == 1 )
 	/* The application writer has already defined the array used for the RTOS
 	heap - probably so it can be placed in a special segment or address. */
-	extern uint8_t ucHeap[ configTOTAL_HEAP_SIZE ];
+__attribute__ ((section(".noinit_RAM2"))) uint8_t ucHeap[ configTOTAL_HEAP_SIZE ];
 #else
         static uint8_t ucHeap[ configTOTAL_HEAP_SIZE ];
 #endif /* configAPPLICATION_ALLOCATED_HEAP */

diff --git a/FreeRTOSConfig.h b/FreeRTOSConfig.h
@@ -55,7 +55,7 @@ licensing and training services.
 #define configCPU_CLOCK_HZ                      ( ( unsigned long ) 8000000)
 #define configTICK_RATE_HZ                      ( ( portTickType ) 1000 )
 #define configMINIMAL_STACK_SIZE                ( ( unsigned short ) 80 )
-#define configTOTAL_HEAP_SIZE                   ( ( size_t ) ( 10 * 1024 ) )
+#define configTOTAL_HEAP_SIZE                   ( ( size_t ) ( 0x4000 ) )
 #define configMAX_TASK_NAME_LEN                 ( 12 )
 #define configUSE_TRACE_FACILITY                0
 #define configUSE_16_BIT_TICKS                  0