[ts-7000] power control register not working

[Tom <>]

I'm trying to use the power control register on a ts-7260 to change from
rs-232 level logic on com3 to TTL-level logic. 
The manual says that setting bit 6 of 0x1200_0000 will enable the
TTL-level UART, but changing this value doesn't seem to do anything. 
Here's what I've tried:

$ peek8 0x12000000
0xf
$ poke8 0x12000000 0x4f
$ peek8 0x12000000
0x4f
$ cat hello.c > /dev/ttyTS0

When I do this, I see ~11.7V logic on the oscilloscope.  I have the
SDcard and RS-485 options on the 7260, if it matters.

TIA,

    Tom


 
Yahoo! Groups Links

<*> To visit your group on the web, go to:
    http://groups.yahoo.com/group/ts-7000/

<*> Your email settings:
    Individual Email | Traditional

<*> To change settings online go to:
    http://groups.yahoo.com/group/ts-7000/join
    (Yahoo! ID required)

<*> To change settings via email:
     
    

<*> To unsubscribe from this group, send an email to:
    

<*> Your use of Yahoo! Groups is subject to:
    http://docs.yahoo.com/info/terms/