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authorSadeep Madurange <sadeep@asciimx.com>2025-01-19 18:45:05 +0800
committerSadeep Madurange <sadeep@asciimx.com>2025-01-19 18:45:49 +0800
commita7644c020c4c2b72fc0f13aeea4be47ba08f1961 (patch)
tree4eb34f3b93d81c445af49c1cf81e2ec82a50b3c4 /aliznayem/serial.c
parent4c0557793d80cbcc6575b83db9cb3a44feeca229 (diff)
downloadsmart-home-a7644c020c4c2b72fc0f13aeea4be47ba08f1961.tar.gz
Try with aliznayem C port (no luck).
Diffstat (limited to 'aliznayem/serial.c')
-rw-r--r--aliznayem/serial.c33
1 files changed, 33 insertions, 0 deletions
diff --git a/aliznayem/serial.c b/aliznayem/serial.c
new file mode 100644
index 0000000..782e848
--- /dev/null
+++ b/aliznayem/serial.c
@@ -0,0 +1,33 @@
+#include <avr/io.h>
+#include <util/setbaud.h>
+
+#include "serial.h"
+
+void serial_init(void)
+{
+ UBRR0H = UBRRH_VALUE;
+ UBRR0L = UBRRL_VALUE;
+#if USE_2X
+ UCSR0A |= (1 << U2X0);
+#else
+ UCSR0A &= ~(1 << U2X0);
+#endif
+ UCSR0B = (1 << TXEN0) | (1 << RXEN0);
+ UCSR0C = (1 << UCSZ01) | (1 << UCSZ00);
+}
+
+void serial_write(char data)
+{
+ while (!(UCSR0A & (1 << UDRE0)))
+ ;
+ UDR0 = data;
+}
+
+void serial_write_line(const char *s)
+{
+ for (; *s; s++)
+ serial_write(*s);
+
+ serial_write('\r');
+ serial_write('\n');
+}