Re: HDLC Synchronous RS232

On 27 May 2005 09:01:06 -0700, "sunil" <sunil_maryala@xxxxxxxxxxxxxx>
wrote:

>hi all,
>
> iam currently programming MC68360 board processor SCC's to work for
>Synchronous HDLC and iam taking out RS232 pin outs from the P2
>connector.
>
>I have initialized the registers and set jumpers according to the
>instructions. but iam not getting the Clock signals from the TXCLK
>lines.
>can u pls give me some hints what r the things that can go wrong which
>will lead to this kind of problem.
>

Are you seeing flags on your TX line ? 0x7F at whatever bitrate
you are using. If the transmitter is enabled, HDLC mode selected
you should see 0x7F on the TX line. If not, then either you have not
enable HDLC mode, or TX is disabled ot you have selected to not have
flags in idle mode.

Regards
Anton Erasmus




.

Relevant Pages

  • Re: HDLC Synchronous RS232
    ... Synchronous HDLC and iam taking out RS232 pin outs from the P2 ... HDLC mode selected you should see 0x7F on the TX line. ... If not, then either you have not enable HDLC mode, or TX is disabled ot you have selected to not have flags in idle mode. ... tauno voipio iki fi ...
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    ... as you have said iam able to see the 0x7f on the TXD line after the ... can u pls check my above settings for SICR and BRGC registers and see ... If the transmitter is enabled, HDLC mode selected ...
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