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authorDimitri Sokolyuk <demon@dim13.org>2017-08-19 12:15:28 +0200
committerDimitri Sokolyuk <demon@dim13.org>2017-08-19 12:15:28 +0200
commit67d25d837ac55f28a366c0a3b262e439a6e75fc3 (patch)
treedf7715c7724c5935ab87c807f3b8b4ef529315e3 /amforth-6.5/avr8/drivers/usart_1.asm
parente0d6784e89dba33226c0edb815bb974486fa7c48 (diff)
Add AmForth
Diffstat (limited to 'amforth-6.5/avr8/drivers/usart_1.asm')
-rw-r--r--amforth-6.5/avr8/drivers/usart_1.asm31
1 files changed, 31 insertions, 0 deletions
diff --git a/amforth-6.5/avr8/drivers/usart_1.asm b/amforth-6.5/avr8/drivers/usart_1.asm
new file mode 100644
index 0000000..2ee44ae
--- /dev/null
+++ b/amforth-6.5/avr8/drivers/usart_1.asm
@@ -0,0 +1,31 @@
+ .equ BAUDRATE_LOW = UBRR1L
+ .equ BAUDRATE_HIGH = UBRR1H
+ .equ USART_C = UCSR1C
+ .equ USART_B = UCSR1B
+ .equ USART_A = UCSR1A
+ .equ USART_DATA = UDR1
+
+.equ URXCaddr = URXC1addr
+.equ UDREaddr = UDRE1addr
+
+.equ bm_USART_RXRD = 1 << RXC1
+.equ bm_USART_TXRD = 1 << UDRE1
+.equ bm_ENABLE_TX = 1 << TXEN1
+.equ bm_ENABLE_RX = 1 << RXEN1
+.equ bm_ENABLE_INT_RX = 1<<RXCIE1
+.equ bm_ENABLE_INT_TX = 1<<UDRIE1
+
+.equ bm_USARTC_en = 0
+.equ bm_ASYNC = 0 << 6
+.equ bm_SYNC = 1 << 6
+.equ bm_NO_PARITY = 0 << 4
+.equ bm_EVEN_PARITY = 2 << 4
+.equ bm_ODD_PARITY = 3 << 4
+.equ bm_1STOPBIT = 0 << 3
+.equ bm_2STOPBIT = 1 << 3
+.equ bm_5BIT = 0 << 1
+.equ bm_6BIT = 1 << 1
+.equ bm_7BIT = 2 << 1
+.equ bm_8BIT = 3 << 1
+
+.include "drivers/usart_common.asm"