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Diffstat (limited to 'docs/library/machine.UART.rst')
| -rw-r--r-- | docs/library/machine.UART.rst | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/docs/library/machine.UART.rst b/docs/library/machine.UART.rst index 957d58ca1..2eb2e20cb 100644 --- a/docs/library/machine.UART.rst +++ b/docs/library/machine.UART.rst @@ -56,11 +56,22 @@ Methods - *tx* specifies the TX pin to use. - *rx* specifies the RX pin to use. + - *rts* specifies the RTS (output) pin to use for hardware receive flow control. + - *cts* specifies the CTS (input) pin to use for hardware transmit flow control. - *txbuf* specifies the length in characters of the TX buffer. - *rxbuf* specifies the length in characters of the RX buffer. - *timeout* specifies the time to wait for the first character (in ms). - *timeout_char* specifies the time to wait between characters (in ms). - *invert* specifies which lines to invert. + - *flow* specifies which hardware flow control signals to use. The value + is a bitmask. + + - ``0`` will ignore hardware flow control signals. + - ``UART.RTS`` will enable receive flow control by using the RTS output pin to + signal if the receive FIFO has sufficient space to accept more data. + - ``UART.CTS`` will enable transmit flow control by pausing transmission when the + CTS input pin signals that the receiver is running low on buffer space. + - ``UART.RTS | UART.CTS`` will enable both, for full hardware flow control. On the WiPy only the following keyword-only parameter is supported: |