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Diffstat (limited to 'amforth-6.5/msp430/devices/msp430f5529/words/usart-init.asm')
-rw-r--r--amforth-6.5/msp430/devices/msp430f5529/words/usart-init.asm16
1 files changed, 16 insertions, 0 deletions
diff --git a/amforth-6.5/msp430/devices/msp430f5529/words/usart-init.asm b/amforth-6.5/msp430/devices/msp430f5529/words/usart-init.asm
new file mode 100644
index 0000000..4bcd00c
--- /dev/null
+++ b/amforth-6.5/msp430/devices/msp430f5529/words/usart-init.asm
@@ -0,0 +1,16 @@
+ CODEHEADER(XT_USART,6,"+usart")
+ ; USCI_A0
+ mov.b #030h, &P4SEL ; Use P4.4/P4.5 for USCI_A1 TXD/RXD
+
+ ;------------------------------------------------------------------------------
+ ; Init serial communication
+
+ mov.b #UCSWRST, &UCA1CTL1 ; **Put state machine in reset**
+ bis.b #UCSSEL_2, &UCA1CTL1 ; SMCLK
+
+ mov.w #4, &UCA1BRW ; 8 MHz 115200 Baud
+ mov.b #3Bh, &UCA1MCTL ; Modulation UCBRSx=5, UCBRFx=3, UCOS16
+
+ bic.b #UCSWRST, &UCA1CTL1 ; **Initialize USCI state machine**
+
+ NEXT