[Gumstix-users] Resistor removal for TTL level UART (console-vx)

[Hak-Tae L. <ha...@ya...>]

I would like to confirm the resistors to remove to use TTL level signal.

As I remember, the labeling was wrong on the recent boards.

The board I'm using is console-vx R1851.


If I orient the board such that the USB port is at the upper right corner, As shown in the wiki page
http://docwiki.gumstix.org/index.php/Console-vx

------------------------------------------------------------------------
upper left: STRXD -> wrong, should be FFRXD
lower left: STTXD -> wrong, should be STRXD

upper right: BTRXD -> correct
lower right: BTTXD -> wrong, should be BTCTS
------------------------------------------------------------------------

To use TTL level with
(a) STUART -> remove the lower left one (STRXD)
(b) BTUART -> remove the lower and upper right ones (BTRXD and BTCTS)


Am I correct on this?

Thanks.