PSC in UART mode on TQM5200S

Wolfgang Denk wd at denx.de
Wed Sep 19 08:38:57 EST 2007


In message <53b5d6e90709180313n7ef053ddqfb771f44d9bd44ef at mail.gmail.com> you wrote:
>
> So changed $HOME/linuxppc_2_4_devel/arch/ppc/platforms/tqm5200.h
> the following way:

Well, you have to unserstand *exactly* what the CPU and the board are
doing - the MPC5200 has multiplexed pins, and if you select one
function you lose a few others, so you must carefully check for
conflicts. Probably you will have to disable some other functions.
Also you have to usnerstand what the board is designed like - some
ports have specific and reserved functions.

Finally, there are such things like wrong baud rate on a serial port
which may make you think it's not working while you are just using bad
user mode settings.

> Is it possible to reconfigure all PSC's as UART's ?

Yes, it is. But you have to know what you are doing.


Best regards,

Wolfgang Denk

-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
All a hacker needs is a tight PUSHJ, a loose pair of UUOs, and a warm
place to shift.


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