rp2040

commit 8037f89e7810aaaeb2abbf806f517a12ace759d4
parent 8bef3e89b1889e621d867ec07dfe76f41a61ebcd
Author: Matsuda Kenji <info@mtkn.jp>
Date:   Sat,  8 Apr 2023 11:15:36 +0900

use sram to execute program

Diffstat:
M
boot2/boot2_sram.s
 | 
4
++--

1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/boot2/boot2_sram.s b/boot2/boot2_sram.s
@@ -30,7 +30,7 @@ boot2:
 	// copy program data from flash to sram
 	ldr r2, =(XIP_BASE + 0x100)
 	ldr r3, =SRAM_BASE
-	ldr r0, =0x1000
+	ldr r0, =0x1000 // how to get the program size?
 sram_cpy:
 	ldr r1, [r2, #0]
 	str r1, [r3, #0]
@@ -40,7 +40,7 @@ sram_cpy:
 	bne sram_cpy
 
 	// exit from boot2
-	ldr r0, =(XIP_BASE + 0x100)
+	ldr r0, =SRAM_BASE
 	ldr r1, =(PPB_BASE + 0xed08)
 	str r0, [r1, #0] // M0PLUS: VTOR
 	ldr r1, [r0, #4]