hello everyone, btw i have a problem on USART programming...i have no idea about why this program doesn't want to display setence "neXTGen USART transmit test.......complete "
on hyperterminal.....
do u know how to solve it??
/***************************************************** This program was produced by the CodeWizardAVR V2.03.4 Standard Automatic Program Generator © Copyright 1998-2008 Pavel Haiduc, HP InfoTech s.r.l. http://www.hpinfotech.com Project : neXTGen Version : 1.0 Date : 8/5/2010 Author : E-1 Company : E-1 Corp. Comments : ??? Chip type : ATmega8535 Program type : Application Clock frequency : 11.059200 MHz Memory model : Small External RAM size : 0 Data Stack size : 128 *****************************************************/ #include// Alphanumeric LCD Module functions #asm .equ __lcd_port=0x1B ;PORTA #endasm #include #include #include #include //USART definition : #define RXEN 4 #define TXEN 3 #define USBS 3 #define UCSZ0 1 #define UDRE 5 #define TXC 6 #define RXC 7 #define fosc 11059200 // Clock Speed #define baud 19200 #define UBRR (fosc/16*baud)-1 //koneksi USART //------------------------------------------------------------------- void USART_init (unsigned int baudrate) { /* UCSRA=0x00; UCSRB=0x18; UCSRC=0x86; UBRRH=0x00; UBRRL=0x23; */ //baud rate UBRRH = (unsigned char)(baudrate>>8); UBRRL = (unsigned char)(baudrate); UCSRA=0x00; //tx-rx UCSRB=(1<<RXEN)|(1<<TXEN); //frame : 8 bit, 1 stop bit, no parity UCSRC = (0<<USBS)|(3<<UCSZ0); } void USART_transmit(unsigned char value) { while ( !( UCSRA & (1<<UDRE)) ) ; UDR = value; } unsigned char USART_Receive( void ) { while ( !(UCSRA & (1<<RXC)) ); return UDR; } //------------------------------------------------------------ void main(void) { // Declare your local variables here USART_init(UBRR); printf("neXTGen USART transmit test.......complete "); //------------------------------------------------------------------------------------------------- // Input/Output Ports initialization // Port A initialization // Func7=In Func6=In Func5=In Func4=In Func3=In Func2=In Func1=In Func0=In // State7=T State6=T State5=T State4=T State3=T State2=T State1=T State0=T PORTA=0x00; DDRA=0x00; // Port B initialization // Func7=In Func6=In Func5=In Func4=In Func3=In Func2=In Func1=In Func0=In // State7=T State6=T State5=T State4=T State3=T State2=P State1=P State0=P PORTB=0x07; DDRB=0x00; // Port C initialization // Func7=In Func6=In Func5=In Func4=In Func3=In Func2=In Func1=In Func0=In // State7=T State6=T State5=T State4=T State3=T State2=T State1=T State0=T PORTC=0x00; DDRC=0x00; // Port D initialization // Func7=In Func6=In Func5=Out Func4=Out Func3=In Func2=In Func1=In Func0=In // State7=T State6=T State5=0 State4=0 State3=T State2=T State1=T State0=T PORTD=0x00; DDRD=0x30; // Timer/Counter 0 initialization // Clock source: System Clock // Clock value: Timer 0 Stopped // Mode: Normal top=FFh // OC0 output: Disconnected TCCR0=0x00; TCNT0=0x00; OCR0=0x00; // Timer/Counter 1 initialization // Clock source: System Clock // Clock value: 1382.400 kHz // Mode: Ph. correct PWM top=00FFh // OC1A output: Non-Inv. // OC1B output: Non-Inv. // Noise Canceler: Off // Input Capture on Falling Edge // Timer 1 Overflow Interrupt: Off // Input Capture Interrupt: Off // Compare A Match Interrupt: Off // Compare B Match Interrupt: Off TCCR1A=0xA1; TCCR1B=0x02; TCNT1H=0x00; TCNT1L=0x00; ICR1H=0x00; ICR1L=0x00; OCR1AH=0x00; OCR1AL=0x00; OCR1BH=0x00; OCR1BL=0x00; // Timer/Counter 2 initialization // Clock source: System Clock // Clock value: Timer 2 Stopped // Mode: Normal top=FFh // OC2 output: Disconnected ASSR=0x00; TCCR2=0x00; TCNT2=0x00; OCR2=0x00; // External Interrupt(s) initialization // INT0: Off // INT1: Off // INT2: Off MCUCR=0x00; MCUCSR=0x00; // Timer(s)/Counter(s) Interrupt(s) initialization TIMSK=0x00; /* from wizard-------------------------------------------------- // USART initialization // Communication Parameters: 8 Data, 1 Stop, No Parity // USART Receiver: On // USART Transmitter: On // USART Mode: Asynchronous // USART Baud Rate: 19200 UCSRA=0x00; UCSRB=0x18; UCSRC=0x86; UBRRH=0x00; UBRRL=0x23; printf("test"); */ // Analog Comparator initialization // Analog Comparator: Off // Analog Comparator Input Capture by Timer/Counter 1: Off ACSR=0x80; SFIOR=0x00; // LCD module initialization lcd_init(16); //-------------------------------------------------------------------------------------------------------------- while (1) { // Place your code here }; }