rp2040

commit 758fcb6332fb119f5f036459bb5c4179ad85d157
parent 18fd9cf0ed22671825ced85424e70c7b66c88ac3
Author: Matsuda Kenji <info@mtkn.jp>
Date:   Wed, 22 Mar 2023 09:02:19 +0900

setup uart0 baud rate

Diffstat:
M
main.s
 | 
8
++++++--

1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/main.s b/main.s
@@ -100,6 +100,11 @@ pll_lock:
 	// enable FIFO
 	lsl r1, r1, #4
 	str r1, [r0, #0x2c] // UART0_UARTLCR_H
+	// set baud rate dividers
+	mov r1, #67
+	str r1, [r0, #0x24] // UART0_UARTIBRD
+	mov r1, #52
+	str r1, [r0, #0x28] // UART0_UARTFBRD
 	// setup uart0
 	mov r1, #2 // WLEN = 2
 	lsl r1, r1, #3
@@ -111,7 +116,6 @@ pll_lock:
 
 loop:
 	bl p0
-	bl p1
 	b loop
 
 // functions
@@ -187,7 +191,7 @@ led_blink:
 
 delay:
 	mov r0, #1
-	lsl r0, r0, #21
+	lsl r0, r0, #25
 del_loop:
 	sub r0, r0, #1
 	bne del_loop