@CHIP-RTOS C Library V2.06 - Fossil API
fossil_getbyte
Get byte from input buffer (no wait). int fossil_getbyte ( int port ); SC1x Parameters
- port
- Port specifier:
FOSSIL_EXT = 0 for EXT port
FOSSIL_COM = 1 for COM port
SC1x3 Parameters
- port
- Port specifier:
FOSSIL_EXT = 0 for EXT port
FOSSIL_COM = 1 for COM port
FOSSIL_SER2 = 2 for SER2 port
FOSSIL_SER3 = 3 for SER3 port
Return Value
- -1 if no data is available in receiver buffer,
else next received byte
Comments
- This function uses Fossil interrupt
0x14 Service 0x18
to read out a block of length one. This method of polling for
single characters at the receiver will be considerably more
efficient than the alternative method using the
fossil_status_request
and fossil_getbyte_wait
function pair.
See Also
RTOS API
- This library function invokes a RTOS software interrupt.
Refer to this RTOS API function's
documentation
for more details.
Supported since or modified in @CHIP-RTOS version-
SC12 | SC13 | SC11 | SC1x3 |
-
V1.00 | V1.00 | V1.00 | V0.90 |
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