rp2040

commit 14b949eb9a8573299b041aac480428a3499fb28c
parent 5663f3c58ba4dd0dc99ea67af4b9fd473dd67bfb
Author: Matsuda Kenji <info@mtkn.jp>
Date:   Sun, 19 Mar 2023 09:34:59 +0900

check xosc_status for debugging
xosc seems fine after enabled

Diffstat:
M
main.s
 | 
9
+++++++++

1 file changed, 9 insertions(+), 0 deletions(-)
diff --git a/main.s b/main.s
@@ -44,6 +44,15 @@ gpio_reset_chk:
 	lsl r1, r1, #4
 	str r1, [r0, #0] // XOSC_CTRL
 
+	ldr r0, xosc_base
+	ldr r1, [r0, #0x4] // XOSC_STATUS
+	lsr r1, r1, #24
+	mov r2, #1
+	and r1, r2
+	bne xosc_ok
+	bl led_blink
+xosc_ok:
+
 	// wait for xosc startup
 xosc_stable:
 	ldr r0, xosc_base