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@CHIP-RTOS C Library V2.06 - Fossil API


fossil_set_rs485_txenable

Select RS485 pin.

void fossil_set_rs485_txenable ( int port, int pin );

SC1x Parameters

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

pin
PIO pin number, [0..13]

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

pin
PIO pin number, [0..24,26..31]
Use -1 to select the RTS pin (hardware functionality / default)

Return Value

-- none --

Comments

By default the RTS signals (pins) are used to enable/disable the respective transmitter. (TxEnable)   This function lets you select any PIO as TxEnable (but not all make sense).  To change the default, call this function before you call the fossil_set_rs485 function.  

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

    SC12SC13SC11SC1x3
    V1.00V1.00V1.00V0.90

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