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Title: Serial Port Example AVR using Crosswork AVR Post by: edi14_10 on December 06, 2007, 03:50:15 15:50 does anyone have an example using serial port in avr using crosswork AVR compiler?
Title: Re: Serial Port Example AVR using Crosswork AVR Post by: zetd on December 06, 2007, 04:35:48 16:35 Hire is my test on Rowley Crosswork for AVR
credit is for [email protected] http://www.holger-klabunde.de/index.html i just mod his code and port from winavr (GNU) syntact to Rowley Crosswork for AVR (Actually GNU variant too) hey edi14_10, try to port this library http://hubbard.engr.scu.edu/embedded/ , i have done with it use for your reference Title: Re: Serial Port Example AVR using Crosswork AVR Post by: preecha on December 10, 2007, 08:54:25 08:54 for Crosswork AVR 1.3
#define BAUD 57600 //Enable 2x speed 28800 x 2 = 57600 #define BAUDRATE FOSC/16/BAUD-1 void USART_Init(unsigned int baudrate) { UBRRH = (unsigned char)(baudrate>>8); UBRRL = (unsigned char)baudrate; // Enable 2x speed UCSRA = (1<<U2X_BIT); // Enable receiver and transmitter UCSRB = (1<<RXEN_BIT)|(1<<TXEN_BIT)|(1<<RXCIE_BIT); // Async. mode, 8N1 UCSRC = (1 << URSEL) | (3 << UCSZ0); } void TxSerialPort(unsigned char data) { while (!(UCSRA & (1<<UDRE_BIT))); UDR = data; } unsigned char RxSerialPort(void) { while (!(UCSRA & (1<<RXC_BIT))); return UDR; } void main() { unsigned char dat; USART_Init(BAUDRATE); while(1) { dat=RxSerialPort(); TxSerialPort(dat); } } Title: Re: Serial Port Example AVR using Crosswork AVR Post by: edi14_10 on December 11, 2007, 12:14:14 00:14 How about delay in crosswork? i didnt find delay.h. do we have to make the library by ourself?
Title: Re: Serial Port Example AVR using Crosswork AVR Post by: metal on December 11, 2007, 02:01:44 14:01 delay cycles should work for you
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