Thread (1 message) 1 message, 1 author, 2003-05-17

Re: kermit:How to disable the flow control signals?

From: Wolfgang Denk <hidden>
Date: 2003-05-17 17:07:15

Dear Rick,

in message [ref] you wrote:
quoted
quoted
1.why the flow control signals are still "on"?
Because this is what you serial  driver  reports  about  the  current
state of these pins?
i donnot think so,for example,my NO.7 pin(RTS) and NO.9 pin(RI) both connect
to nothing,if your conclusion is correct,RTS and RI should be the same
state.But we
saw they are not the same.
Do you really know for sure how thse pins are  internally  connected?
If  there  are  any  pull-up  or -down resistors? And how your UART is
implemented internally? And if the driver actually reads the pins?

I wrote: this is what your  serial  driver  reports.  This  does  not
necessarily  mean  that  this is actually the state of the externally
accessable pin on the serial connector...
here is my info:
This looks ok.
Now we can still see the RTS/CTS/DSR/CD/DTR are still on,why?
Because this is what you serial  driver  reports  about  the  current
state of these pins?
it my kermit version's problem?
No.


Ummm... why do you bother? Is anything not working?

Best regards,

Wolfgang Denk

--
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd@denx.de
A Puritan is someone who is deathly afraid that  someone,  somewhere,
is having fun.

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