33 lines
1.1 KiB
C
33 lines
1.1 KiB
C
/*******************************************************************/
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// Defines
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/*******************************************************************/
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//******* usart_init
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// (FOSC/(4 x BAUD_RATE))-1 BRGH=1 BRG16=1
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// (FOSC/(16 x BAUD_RATE))-1 (BRGH=1 BRG16=0) or (BRGH=0 BRG16=1) - High speed
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// (FOSC/(64 x BAUD_RATE))-1 BRGH=0 BRG16=0 - Low speed
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//******* usart_init_auto
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// BRG16=0 BRGH=0 => FOSC/512
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// BRG16=0 BRGH=1 => FOSC/128
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// BRG16=1 BRGH=0 => FOSC/128
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// BRG16=1 BRGH=1 => FOSC/32
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#define BAUD_RATE 0x0196 //0x0065 // 4800
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#define BAUD_BRGH 1
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#define BAUD_BRG16 1
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#define TX_LED portb.4
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#define RX_LED portb.4
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/*******************************************************************/
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// Functions
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/*******************************************************************/
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void usart_init(void);
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void usart_init_auto(void);
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void usart_putc(unsigned char data);
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unsigned char usart_getc(void);
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void usart_gets(unsigned char *destination);
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void usart_puts(unsigned char *source);
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void usart_putsln(unsigned char *source);
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void usart_put_newline(void);
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void usart_waitfor(unsigned char c);
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void usart_put_baoud(void);
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