rp2040

commit 2be6540a84ad1d316c47601fe4dfd89df8be53e5
parent 22533963504a2cde90c65e92bdadf99eb0943894
Author: Matsuda Kenji <info@mtkn.jp>
Date:   Wed, 12 Apr 2023 11:08:42 +0900

try to embed boot2

Diffstat:
M
Makefile
 | 
1
+
M
boot2.s
 | 
2
+-
M
main.c
 | 
7
-------
M
memmap.ld
 | 
7
+++----

4 files changed, 5 insertions(+), 12 deletions(-)
diff --git a/Makefile b/Makefile
@@ -14,6 +14,7 @@ all: led.uf2
 
 clean:
 	rm -f *.o *.elf *.uf2 *.bin
+	rm -f boot2_crc.s
 	rm -f bincrc bin2uf2
 	rm -f boot2/*.o
 	rm -f boot2/*.bin
diff --git a/boot2.s b/boot2.s
@@ -1,7 +1,7 @@
 .cpu cortex-m0plus
 .thumb
 
-	.section boot2
+	.section .boot2
 	.global setup_xip
 	.thumb_func
 setup_xip:
diff --git a/main.c b/main.c
@@ -1,11 +1,4 @@
-extern void init(void);
-extern void led_p2(void);
-
 void
 main(void)
 {
-	init();
-	while(1) {
-		led_p2();
-	}
 }
diff --git a/memmap.ld b/memmap.ld
@@ -6,11 +6,10 @@ MEMORY
 
 SECTIONS
 {
-	.boot2 : {
+	.text : {
+		. = 0x0;
 		*(.boot2)
-	} > FLASH
-
-	.text : AT (0x10000100) {
+		. = 0x100;
 		*(.vectors)
 		*(.text)
 		_etext = .;