basic memory management and uart wait fix

[cortex-from-scratch] / start.asm

diff --git a/start.asm b/start.asm
index 294a718..d8c7244 100644 (file)
--- a/start.asm
+++ b/start.asm
@@ -1,4 +1,4 @@
-       .equ STACK_TOP, 0x20000800
+       .equ STACK_TOP, 0x20008000 /* placed at 32kB, TODO: could place at top of SRAM? */
        .text
        .global _start
        .global reset, nmi, hardfault
@@ -34,7 +34,7 @@ stub:
        mov R1,#0
        udiv.w R2, R0, R1 */
 
-       .data
-       .word 'x'
+/*     .data
+       .word 'x' */
        .end