rp2040

commit b5299ae51ab72bb44bfab55faff2b1916880898a
parent 6e8afae69eb00f0b428fca5b9f5ee1afc54ecb74
Author: Matsuda Kenji <info@mtkn.jp>
Date:   Thu,  7 Mar 2024 09:44:35 +0900

add rodata section and modify boot.s

Diffstat:
M
ex3/boot2.s
 | 
2
+-
M
ex3/main.c
 | 
8
++++++--
M
ex3/memmap.ld
 | 
5
++++-

3 files changed, 11 insertions(+), 4 deletions(-)
diff --git a/ex3/boot2.s b/ex3/boot2.s
@@ -18,7 +18,7 @@ boot2:
 	ldr r3, sram_base
 copy:
 	cmp r1, r2
-	beq end
+	blt end
 	ldr r4, [r0, r2]
 	str r4, [r3, r2]
 	add r2, #4
diff --git a/ex3/main.c b/ex3/main.c
@@ -10,13 +10,17 @@ main(void) {
 }
 
 void
+scheduler(void) {
+	puts("scheduler calledabc");
+}
+
+void
 isr_svcall(void) {
 	puts("svcall");
 }
 
 void
 isr_alarm(void) {
-	char *msg = "hello";
-	puts(msg);
+	scheduler();
 	set_alarm(1000 * 1000);
 }
diff --git a/ex3/memmap.ld b/ex3/memmap.ld
@@ -17,7 +17,10 @@ SECTIONS
 	.data : {
 		*(.data)
 	} > SRAM AT > FLASH
+	.rodata : {
+		*(.rodata)
+	} > SRAM AT > FLASH
 	prog_start = LOADADDR(.text);
-	prog_size = SIZEOF(.text) + SIZEOF(.data);
+	prog_size = SIZEOF(.text) + SIZEOF(.data) + SIZEOF(.rodata);
 }