CCS C Compiler Manual PCB / PCM / PCH

Built-in Functions
Function:
Availability:
Requires:
Examples:
Example Files:
Function to determine the number of bytes in receive buffer that still need
to be retrieved.
All devices
#USE RS232
#USE_RS232(UART1,BAUD=9600,RECEIVE_BUFFER=100)
void main(void) {
char c;
if(rcv_buffer_bytes() > 10)
c = getc();
}
None
Also See: _USE_RS232( ), RCV_BUFFER_FULL( ), TX_BUFFER_FULL( ),
TX_BUFFER_BYTES( ), GETC( ), PUTC( ) ,PRINTF( ), SETUP_UART(
), PUTC_SEND( )
rcv_buffer_full( )
Syntax:
Parameters:
Returns:
Function:
Availability:
Requires:
Examples:
Example Files:
value = rcv_buffer_full([stream]);
stream – optional parameter specifying the stream defined in #USE
RS232.
TRUE if receive buffer is full, FALSE otherwise.
Function to test if the receive buffer is full.
All devices
#USE RS232
#USE_RS232(UART1,BAUD=9600,RECEIVE_BUFFER=100)
void main(void) {
char c;
if(rcv_buffer_full())
c = getc();
}
None
Also See: _USE_RS232( ),RCV_BUFFER_BYTES( ), TX_BUFFER_BYTES( )
,TX_BUFFER_FULL( ), GETC( ), PUTC( ), PRINTF( ), SETUP_UART( ),
PUTC_SEND( )
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