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#include "usart.h" |
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#include "usart.h" |
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#include <avr/io.h> |
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#include <avr/io.h> |
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void USART_Init( unsigned int ubrr) |
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void USART_Init( unsigned int ubrr) |
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{ |
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{ |
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/* Set baud rate */ |
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/* Set baud rate */ |
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UBRRH = (unsigned char)(ubrr>>8); |
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UBRRH = (unsigned char)(ubrr>>8); |
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UBRRL = (unsigned char)ubrr; |
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UBRRL = (unsigned char)ubrr; |
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|
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|
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/* flush transmitt register Double speed */ |
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/* flush transmitt register Double speed */ |
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UCSRA = (1<<UDRE)|(1 << U2X); |
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UCSRA = (1<<UDRE)|(1 << U2X); |
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|
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/* enable receiver interrupt and transmitter, pins forced */ |
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/* enable receiver interrupt and transmitter, pins forced */ |
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UCSRB = (1<<RXCIE)|(1<<RXEN)|(1<<TXEN); |
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UCSRB = (1<<RXCIE)|(1<<RXEN)|(1<<TXEN); |
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|
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/* Asynchronous, no parity, Set frame format: 8data, 1stop bit */ |
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/* Asynchronous, no parity, Set frame format: 8data, 1stop bit */ |
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UCSRC = (1<<URSEL)|(1<<UCSZ0)|(1<<UCSZ1); |
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UCSRC = (1<<URSEL)|(1<<UCSZ0)|(1<<UCSZ1); |
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} |
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} |
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void USART_Transmit( unsigned char data ) |
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void USART_Transmit( unsigned char data ) |
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{ |
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{ |
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while ( !( UCSRA & (1<<UDRE)) ); /* Wait for empty transmit buffer */ |
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while ( !( UCSRA & (1<<UDRE)) ); /* Wait for empty transmit buffer */ |
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|
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UDR = data; /* Put data into buffer, sends the data */ |
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UDR = data; /* Put data into buffer, sends the data */ |
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} |
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} |
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void USART_Transmit_string( char *data ) |
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void USART_Transmit_string( char *data ) |
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{ |
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{ |
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while ( *data != 0 ) { |
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while ( *data != 0 ) { |
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USART_Transmit(*data); |
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USART_Transmit(*data); |
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data++; |
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data++; |
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} |
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} |
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} |
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} |
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void USART_Transmit_longnum(signed long data ) { |
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void USART_Transmit_longnum(signed long data ) { |
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unsigned char digits[10],i; |
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unsigned char digits[10],i; |
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|
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if (data==0) |
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if (data==0) |
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USART_Transmit('0'); |
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USART_Transmit('0'); |
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else { // PROZKOUMAT! |
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else { // PROZKOUMAT! |
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|
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if (data<0) { |
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if (data<0) { |
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USART_Transmit('-'); |
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USART_Transmit('-'); |
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data*=-1; |
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data*=-1; |
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} |
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} |
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|
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for (i=0;i<10;i++) { |
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for (i=0;i<10;i++) { |
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digits[i]=data%10; |
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digits[i]=data%10; |
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data=data/10; |
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data=data/10; |
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} |
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} |
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i=9; |
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i=9; |
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while (digits[i]==0) i--; |
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while (digits[i]==0) i--; |
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while (i>0) { |
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while (i>0) { |
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USART_Transmit(digits[i]+48); |
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USART_Transmit(digits[i]+48); |
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i--; |
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i--; |
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} |
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} |
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USART_Transmit(digits[0]+48); |
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USART_Transmit(digits[0]+48); |
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|
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} |
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} |
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} |
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} |
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void USART_Transmit_uint16 (unsigned int data ) { |
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void USART_Transmit_uint16 (unsigned int data ) { |
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unsigned char digits[5],i; |
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unsigned char digits[5],i; |
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|
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if (data==0) //podivne, ale nulu to odeslat neumi |
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if (data==0) //podivne, ale nulu to odeslat neumi |
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USART_Transmit('0'); |
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USART_Transmit('0'); |
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else { |
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else { |
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|
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for (i=0;i<5;i++) { |
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for (i=0;i<5;i++) { |
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digits[i]=data%10; |
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digits[i]=data%10; |
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data=data/10; |
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data=data/10; |
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} |
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} |
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|
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i=4; |
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i=4; |
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while (digits[i]==0) i--; |
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while (digits[i]==0) i--; |
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while (i>0) { |
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while (i>0) { |
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USART_Transmit(digits[i]+48); |
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USART_Transmit(digits[i]+48); |
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i--; |
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i--; |
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} |
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} |
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USART_Transmit(digits[0]+48); |
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USART_Transmit(digits[0]+48); |
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|
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} |
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} |
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} |
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} |
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void USART_Transmit_num(unsigned char data ) { |
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void USART_Transmit_num(unsigned char data ) { |
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unsigned char a,b,c; |
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unsigned char a,b,c; |
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|
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|
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c=data%10; |
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c=data%10; |
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data=data/10; |
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data=data/10; |
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b=data%10; |
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b=data%10; |
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data=data/10; |
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data=data/10; |
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a=data%10; |
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a=data%10; |
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|
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USART_Transmit(a+48); |
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USART_Transmit(a+48); |
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USART_Transmit(b+48); |
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USART_Transmit(b+48); |
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USART_Transmit(c+48); |
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USART_Transmit(c+48); |
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} |
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} |
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/*void USART_Transmit_float( float data ) { |
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/*void USART_Transmit_float( float data ) { |
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int a,b,c; |
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int a,b,c; |
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|
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c=((int)data)%10; |
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c=((int)data)%10; |
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b=((int)(data/10))%10; |
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b=((int)(data/10))%10; |
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a=((int)(data/100))%10; |
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a=((int)(data/100))%10; |
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USART_Transmit(a+48); |
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USART_Transmit(a+48); |
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USART_Transmit(b+48); |
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USART_Transmit(b+48); |
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USART_Transmit(c+48); |
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USART_Transmit(c+48); |
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}*/ |
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}*/ |
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void USART_Transmit_byte( char data ) { |
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void USART_Transmit_byte( char data ) { |
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unsigned char i; |
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unsigned char i; |
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i=0b10000000; |
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i=0b10000000; |
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while (i) { |
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while (i) { |
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USART_Transmit( ( (i&data)&&1 ) + 48 ); |
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USART_Transmit( ( (i&data)&&1 ) + 48 ); |
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i>>=1; |
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i>>=1; |
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} |
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} |
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} |
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} |