On 2017-01-30 12:12, Fabio Estevam wrote:
From: Fabio Estevam <fabio.estevam@xxxxxxx>
When userspace passes the SER_RS485_RTS_ON_SEND flag it means that the
CTS_B pin should go to logic level high before the transmission begins.
So setting the SER_RS485_RTS_ON_SEND flag sets CTS_B active high during
send.
When userspace passes the SER_RS485_RTS_AFTER_SEND flag it means that
the
CTS_B pin should go to logic level low after the transmission finishes.
And setting the SER_RS485_RTS_AFTER_SEND flag sets CTS_B active low
after send ?
I don't get it. First, isn't CTS an input instead of an output?
And if I follow this through and want CTS_B high during a transmit only
then I
must set both SER_RS485_RTS_ON_SEND and SER_RS485_RTS_AFTER_SEND.
Kind regards,
Maarten
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