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https://opencores.org/ocsvn/openmsp430/openmsp430/trunk
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| Rev 153 |
Rev 212 |
| Line 53... |
Line 53... |
incd &rxbit ;setup next state
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incd &rxbit ;setup next state
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; reti
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; reti
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mov #0xffff, r15 ;return 0xffff
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mov #0xffff, r15 ;return 0xffff
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ret
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ret
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; void serPutc(char)
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; void tty_putc(char)
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;use an other Capture/Compare than for receiving (full duplex).
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;use an other Capture/Compare than for receiving (full duplex).
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;this one is without interrupts and OUTMOD, because only
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;this one is without interrupts and OUTMOD, because only
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;this way P1.1 can be used. P1.1 is prefered because the
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;this way P1.1 can be used. P1.1 is prefered because the
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;BSL is on that pin too.
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;BSL is on that pin too.
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.global putchar
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.global tty_putc
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.type putchar, @function
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.type tty_putc, @function
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putchar: ;send a byte
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tty_putc: ;send a byte
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mov #0, &CCTL1 ;select compare mode
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mov #0, &CCTL1 ;select compare mode
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mov #10, r13 ;ten bits: Start, 8 Data, Stop
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mov #10, r13 ;ten bits: Start, 8 Data, Stop
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rla r15 ;shift in start bit (0)
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rla r15 ;shift in start bit (0)
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bis #0x0200, r15 ;set tenth bit (1), thats the stop bit
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bis #0x0200, r15 ;set tenth bit (1), thats the stop bit
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mov &TAR, &CCR1 ;set up start time
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mov &TAR, &CCR1 ;set up start time
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