Re: [ts-7000] power control register not working

[Eddie Dawydiuk <>]

Hello,

> 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.

Have you ordered the OP-2TTLCOM option? The table on page 23 mentions
COM3 uses RS232 levels, if the OP-2TTLCOM option is ordered it is also
available with TTL levels.

//Eddie


 
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