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@CHIP-RTOS C Library V2.00 - Fossil API


fossil_putbyte_wait

Put byte in output buffer, wait if needed.

int fossil_putbyte_wait ( int port, int ch );

Parameters

port

Port specifier:   FOSSIL_EXT = 0 for EXT port,   FOSSIL_COM = 1 for COM port

ch

Byte to output

Return Value

Status code (bit field):
    bit 6: FOSSIL_OUTPUT_BUFFER_EMPTY
    bit 5: FOSSIL_OUTPUT_NOT_FULL
    bit 4: FOSSIL_LINE_BREAK Line break detected
    bit 3: FOSSIL_FRAMING_ERROR Framing error detected
    bit 2: FOSSIL_PARITY_ERROR Parity error detected
    bit 1: FOSSIL_OVERRUN_ERROR Set if overrun occurred on receiver.
    bit 0: FOSSIL_DATA_AVAILABLE Set if data is available in receiver buffer.

The header file contains the indicated mask definitions.

Comments

Character is queued for transmission.  If there is space in the transmitter buffer when this call is made, the character will be stored and control returned to caller.   If the buffer is full, the driver will wait for space.   (This can be dangerous when used in combination with flow control.)

See Also

RTOS API

This library function invokes a RTOS software interrupt. Refer to this RTOS API function's documentation for more details.


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