15391Re: T3-mini serial ports
- Mar 28, 2013Hi Scott-
Thanks for the update. I've got the T3-mini working in TTL mode, but it looks like there's a problem with the A-TX pin. Using TTL, I am able to send commands to the T3-mini through the A-RX pin and communication through port B (TTL) seems to work fine (both TX and RX as far as I can tell, I can echo port B text with 'snoop' but I didn't see an obvious command to output text on port B).
After a little more troubleshooting, it looks like the A-TX pin is still operating in RS-232 mode; it works if I run the A-TX line through a MAX3232 (while the A-RX is still receiving TTL). I verified that 002FFF01 is still 06 using "dump all". Can this be fixed in a firmware update?
BTW, is there a way to use "dump" to output only the memory at 002FF0? That would make verifying this configuration byte much simpler.
Thanks! I'm really excited about the options made possible with a T3 on a small PCB like this.
--- In email@example.com, Scott Miller <scott@...> wrote:
> Hi Cai,
> I just added a note to the wiki:
> I'll add more specific information to the T3-mini page when I have time.
> In short, you'll need to use the patch command to set a configuration
> On 3/27/2013 12:34 AM, caimaver wrote:
> > How can I get either serial port on the T3-mini to speak TTL instead of
> > RS-232? I couldn't find a setting for it in otwincfg or in the
> > "cmd:help" command list and I didn't see anything about it on the wiki
> > either.
> > Thanks!
> > Cai /W6CAI
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