rp2040

commit b5392ca728e1e2abe47cdf5a141578ef0becec4e
parent ce03f9f733ec6ec8fe6c43ca89b292783dae0f85
Author: Matsuda Kenji <info@mtkn.jp>
Date:   Tue, 27 Feb 2024 12:13:23 +0900

fix bug in unreset_chk

Diffstat:
M
ex2/main.s
 | 
7
+++++--

1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/ex2/main.s b/ex2/main.s
@@ -13,10 +13,13 @@ reset:
 	ldr r3, resets_base
 	ldr r1, atomic_clr
 	str r0, [r3, r1] // RESETS: RESET
+	mov r1, #1
+	lsl r1, #22
+	bic r0, r1 // uart stays in reset state until clock_peri is enabled
 unreset_chk:
 	ldr r1, [r3, #0x8] // RESETS: RESET_DONE
-	tst r0, r1
-	beq unreset_chk
+	bic r0, r1
+	bne unreset_chk
 
 	// set gpio functions
 	ldr r3, io_bank0_base