Improve efficiency even further. Introduce the configMAX_SYSCALL_INTERRUPT_PRIORITY feature.

17 years ago · 8b02e015ba
parent 7580c6b817
commit 8b02e015ba
1 changed files with 6 additions and 1 deletions
--- a/Source/portable/IAR/ARM_CM3/portasm.s
+++ b/Source/portable/IAR/ARM_CM3/portasm.s
@ -146,9 +146,14 @@ vPortSVCHandler;
 /*-----------------------------------------------------------*/

 vPortStartFirstTask
+	/* Use the NVIC offset register to locate the stack. */
+	ldr r0, =0xE000ED08
+	ldr r0, [r0]
+	ldr r0, [r0]
+	/* Set the msp back to the start of the stack. */
 	msr msp, r0
+	/* Call SVC to start the first task. */
 	svc 0

-
 	END