usart.h

avr+TFT+SD卡实现数码相框功能

/*******************************************************************
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#ifndef __usart_h__
#define __usart_h__

//#define uint8_t unsigned char
//#define uint16_t unsigned int
/*
#define Baud_mul_2()	UCSRA |= (1<<U2X)
#define Mul_master()	UCSRA |= (1<<MPCM)
#define RXC_en()		UCSRB |= (1<<RXCIE)
#define TXC_en()		UCSRB |= (1<<TXCIE)
#define UDR_en()		UCSRB |= (1<<UDRIE)
#define RX_en()			UCSRB |= (1<<RXEN)
#define TX_en()			UCSRB |= (1<<TXEN)
#define Data_format_8()	UCSRB &=~ (1<<UCSZ2);UCSRC |= (1<<URSEL)|(1<<UCSZ1)|(1<<UCSZ0)
#define Data_format_9()	UCSRB |= (1<<UCSZ2);UCSRC |= (1<<URSEL)|(1<<UCSZ1)|(1<<UCSZ0)
#define Mode_sel_0()	UCSRC |= (1<<URSEL);UCSRC &= ~(1<<UMSEL)
#define Mode_sel_1()	UCSRC |= (1<<URSEL);UCSRC |= (1<<UMSEL)
#define Even_parity()	UCSRC |= (1<<URSEL)|(1<<UPM1)
#define Odd_parity()	UCSRC |= (1<<URSEL)|(1<<UPM1)|(1<<UPM0)
#define Stop_bit_1()	UCSRC &=~ (1<<USBS)
#define Stop_bit_2()	UCSRC |= (1<<USBS)

#define Baud_set9600()	UBRRH = 0X00;UBRRL = 0X33
#define Baud_set19200()	UBRRH = 0X00;UBRRL = 0X19
*/
void USART_init(void);
unsigned char USART_Getchar(void);
void USART_Putchar(unsigned char send_char);
void USART_Send_string(char *str);

#endif	//end of usart.h