USART Communication Coding of ATMEGA32

USART Communication Coding of ATMEGA32
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I have successfully send character and string with USART communication and simulate it in Proteus.

Please follow these of the following code:
1. "main.c" file
2. header file "USART.h" file and "USART.c" file

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main.c

/* * day20_USART_FTDI.c * * Created: 11/14/2017 7:32:51 PM * Author : TAJIM */ /* * day19.c * day19_light_brightness * Created: 11/12/2017 7:37:05 PM * Author : TAJIM PWM____ 1. Pre-scaler selection 2. wave form generation mode selection 3. timer overflow interrupt function enable 4. clear timer counter register value 5. enable global iterrupt function sei() 6. calculating value for ICR1 7. writing ISR function */ #define F_CPU 8000000UL #include <avr/io.h> #include <stdio.h> #include <util/delay.h> #include "USART.h" #include <avr/interrupt.h> int main(void) { USART_Init(); //USART_Transmit_Byte('A'); while (1) { USART_Transmit_String("Hello World!\r\n"); // \r for carriage return } return 0; }

USART.c

/* * USART.c * * Created: 11/14/2017 7:42:01 PM * Author: TAJIM */ #define F_CPU 8000000UL #include <avr/io.h> #include "USART.h" #define UART_BAUDRATE 9600 #define UART_UBBR_VALUE ((F_CPU / 16 / UART_BAUDRATE) - 1) void USART_Init(void) { /*Set baud rate */ //UBRRH = (unsigned char)(baud>>8); //UBRRL = (unsigned char)baud; UBRRH = (UART_UBBR_VALUE >> 8); //8 bar right shift kore 10 bit er prothom dutake MSB te rakhlo UBRRL = UART_UBBR_VALUE; //last 8ta bose jabe //Enable receiver and transmitter UCSRB = (1<<RXEN)|(1<<TXEN); /* Set frame format: 8data, 2stop bit */ UCSRC = (1<<URSEL)|(1<<USBS)|(1<<UCSZ0)|(1<<UCSZ1); } void USART_Transmit_Byte( unsigned char data ) { /* Wait for empty transmit buffer */ while ( !( UCSRA & (1<<UDRE))); // bit in not set ... checking //while UDRE bit of UCSRA is clear /* Copy 9th bit to TXB8 UCSRB &= ~(1<<TXB8); if ( data & 0x0100 ) { UCSRB |= (1<<TXB8); } */ /* Put data into buffer, sends the data */ UDR = data; } unsigned char USART_Receive_Byte( void ) { /* Wait for data to be received */ while ( !(UCSRA & (1<<RXC)) ); /* Get and return received data from buffer */ return UDR; } void USART_Transmit_String(char *string) { while(*string) { USART_Transmit_Byte(*string++); } }

USART.h

/* * USART.h * * Created: 11/14/2017 7:38:22 PM * Author: TAJIM */ void USART_Init(void); void USART_Transmit_Byte(unsigned char data); unsigned char USART_Receive_Byte( void ); void USART_Transmit_String(char *string);

Output in Proteus

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