RE: [ts-7000] Losing characters on TS-7800 tsuart port in RS485HD mode

["James Bridson" <>]

Steve,

Unfortunately the actual code belongs to a customer development so I
cannot share it directly but if you ask me a specific question I will do
my best to answer it (mail me offline unless you think the whole list
will be interested). Essentially, on the TS-7250, I open the device
(/dev/ttyS1 on this board), read the current attributes using tcgetattr,
set the baud rate using cfsetispeed/cfsetospeed, set the attributes to
local/raw mode (i.e. no input or output processing) (tcsetattr) then use
the TS ioctl to select RS485HD mode and off you go. It is slightly
different on the TS-7800 since the ioctl does not seem to be present so
I write directly to the tsuart control registers using mmap.

Regards,

James



 
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