Changeset 6390cc3 in avrstuff for libs/usart/usart.c

Timestamp:

Sep 24, 2017, 7:39:05 PM (7 years ago)

Author:

Adrien Destugues <pulkomandy@…>

Branches:

main

Children:

6c47e45

Parents:

9a9d5d0

git-author:

Adrien Destugues <pulkomandy@…> (24/09/2017 17:13:58)

git-committer:

Adrien Destugues <pulkomandy@…> (24/09/2017 19:39:05)

Message:

chiptest: Start to hack on ATmega128 and STK500 devboard.

• Set the proper clock for it (generated by the STK500 master MCU, did

not get crystal working reliably yet)

• Instead of just 'H', generate the whole alphabet for more action!
• Use ATmega128 since that's what happens to be seated on my board for

now.

File:

• libs/usart/usart.c (modified) (2 diffs)

libs/usart/usart.c

@@ -6 +6 @@
 #ifndef BAUD
         #error You must define BAUD to use libuart.
+#endif
+
+#ifdef __AVR_ATmega128__
+// FIXME there are two USARTs in this case and we should be able to drive either
+#define UBRRH UBRR0H
+#define UBRRL UBRR0L
+#define UCSRA UCSR0A
+#define UCSRC UCSR0C
+#define UCSRB UCSR0B
+#define UDR   UDR0
 #endif
 
@@ -29 +39 @@
 #ifdef __AVR_ATtiny2313__
         UCSRC = (1 << UCSZ1) | (1 << UCSZ0);
+#elif defined __AVR_ATmega128__
+        UCSRC = (3 << UCSZ0);
 #else
         UCSRC = (1 << URSEL) | (3 << UCSZ0);