Mikroelektronika MIKROE-738 Datenbogen

426

mikoC PRO for PIC32

MikroElektronika

Soft_UART_Read

Soft_UART_Write

char Soft_UART_Read(char *error);

Description The function receives a byte via software UART.

This is a blocking function call (waits for start bit). Programmer can unblock it by calling Soft_UART_

Break routine.

Parameters - 

error

: Error flag. Error code is returned through this variable. Values : 

- 

0

 - no error 

- 

1

 - stop bit error 

- 

255

 - user abort, Soft_UART_Break called 

Byte received via UART.

Software UART must be initialized before using this function. See the Soft_UART_Init routine.

char data_;

char error;

...

  data = Soft_UART_Read(&error);

while (error);

if (data_) {...}

The Software UART library implements time-based activities, so interrupts need to be disabled when 

using it.

void Soft_UART_Write(char udata);

Description This routine sends one byte via the Software UART bus.
Parameters - 

udata

: data to be sent. 

Nothing.

Software UART must be initialized before using this function. See the Soft_UART_Init routine.

Be  aware  that  during  transmission,  software  UART  is  incapable  of  receiving  data  –  data  transfer 

protocol must be set in such a way to prevent loss of information.

char some_byte = 0x0A;

...

Soft_UART_Write(some_byte);

The Software UART library implements time-based activities, so interrupts need to be disabled when 

using it.