UART1

Macros
#define	uart1_init(uart_baudrate)
	Initiazlize UART1. More...

Functions
void	uart1_send_byte (uint8_t data)
uint8_t	uart1_receive_byte ()
	Receive byte from UART1. More...
int	putchar (int ch)
	Send character to UART1. More...
int	getchar (void)
	Receive character from UART1. More...

Detailed Description

Functions and data structures related to exchange data thru UART1

Author

Michael Golovanov

Macro Definition Documentation

uart1_init

#define uart1_init

(

uart_baudrate

)

Value:

{                                                                       \
    SCON = 0x50; /* Set Mode1: 8-Bit UART with Variable Baud Rate */    \
    timer2_mode0_reload(timer2_mode0_baudrate_to_ticks(uart_baudrate)); \
    AUXR &= 0xE2;                                                       \
    AUXR |= 0x15;                                                       \
}

Initiazlize UART1.

Initialize uart using Timer2. Set timer according to baudrate

Parameters

uart_baudrate

uint32_t uart baudrate, like 9600 and etc

Function Documentation

getchar()

int getchar

(

void

)

Receive character from UART1.

This method need for scanf

Returns

received char

putchar()

int putchar

(

int

ch

)

Send character to UART1.

This method need for printf

Parameters

ch	character to send

Returns

char sended to UART

uart1_receive_byte()

uint8_t uart1_receive_byte

(

)

Receive byte from UART1.

This receive is implemented as synhcronous operation. Waiting until byte is received

Returns

received byte

uart1_send_byte()

void uart1_send_byte

(

uint8_t

data

)

Send byte to UART

Parameters

data	byte to send