From 4f6973b8500418abf83c2377d09396b8588f7746 Mon Sep 17 00:00:00 2001
From: Daniel Friesel <derf@finalrewind.org>
Date: Sat, 18 Sep 2021 21:07:30 +0200
Subject: New architecture: lora32u4ii

Very limited support at the moment. No I2C/SPI, no USB bootloader or USB UART.
---
 src/arch/lora32u4ii/driver/stdout.cc | 36 ++++++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)
 create mode 100644 src/arch/lora32u4ii/driver/stdout.cc

(limited to 'src/arch/lora32u4ii/driver/stdout.cc')

diff --git a/src/arch/lora32u4ii/driver/stdout.cc b/src/arch/lora32u4ii/driver/stdout.cc
new file mode 100644
index 0000000..afe6ff8
--- /dev/null
+++ b/src/arch/lora32u4ii/driver/stdout.cc
@@ -0,0 +1,36 @@
+#include "driver/stdout.h"
+#include <avr/io.h>
+#include <avr/interrupt.h>
+
+#ifndef BAUD
+#define BAUD 9600UL
+#endif
+
+#include <util/setbaud.h>
+
+void StandardOutput::setup()
+{
+	UBRR1H = UBRRH_VALUE;
+	UBRR1L = UBRRL_VALUE;
+
+#if USE_2X
+	UCSR1A |= _BV(U2X1);
+#else
+	UCSR1A &= ~_BV(U2X1);
+#endif
+
+	UCSR1B |= _BV(RXEN1) | _BV(TXEN1);
+	UCSR1C = _BV(UCSZ11) | _BV(UCSZ10); // async UART, 8N1
+	//UCSR1D = 0;
+}
+
+void StandardOutput::put(char c)
+{
+	while (!(UCSR1A & _BV(UDRE1)));
+	UDR1 = c;
+	if (c == '\n') {
+		put('\r');
+	}
+}
+
+StandardOutput kout;
-- 
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