aboutsummaryrefslogtreecommitdiff
path: root/avr/uart.h
diff options
context:
space:
mode:
Diffstat (limited to 'avr/uart.h')
-rw-r--r--avr/uart.h33
1 files changed, 33 insertions, 0 deletions
diff --git a/avr/uart.h b/avr/uart.h
new file mode 100644
index 0000000..adfc884
--- /dev/null
+++ b/avr/uart.h
@@ -0,0 +1,33 @@
+/************************************************************************/
+/* */
+/* File: avr/uart.h */
+/* Description: serial line device. */
+/* Version: 1.0 */
+/* Author: Otto Mattik */
+/* */
+/* (C)Copyright Otto Mattik 2014-2021. */
+/* */
+/* This file is a part of 'armen' (a tiny operating system). */
+/* 'armen' is distributed under the CeCILL-V2.1 licence. For more */
+/* details about this licence, please visit the website cecill.info */
+/* */
+/************************************************************************/
+
+#ifndef _AVR_UART_H_
+#define _AVR_UART_H_
+
+ #if defined(__AVR_ATtiny84__)\
+ || defined(__AVR_ATtiny85__)
+ #define ARMEN_UART_MAX 0
+ #elif defined(__AVR_ATmega328P__)
+ #define ARMEN_UART_MAX 1
+ #elif defined(__AVR_ATtiny841__)\
+ || defined(__AVR_ATtiny1634__)
+ #define ARMEN_UART_MAX 2
+ #elif defined(__AVR_ATmega2560__)
+ #define ARMEN_UART_MAX 4
+ #else
+ #define ARMEN_UART_MAX 0
+ #endif
+
+#endif