Subject:
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RE: interface problem
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Wed, 13 Jan 1999 15:44:51 GMT
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Original-From:
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Wijngaarde, Ronald <r.wijngaarde@STOPSPAMintercai.nl>
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Viewed:
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1176 times
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This can take a long time.
Start by making sure that the cable is correct. You can do this by
changing the Rx and Tx lines. If this does not help de Maxim serial
driver can be faulty. Last check the solder joints.I once looked at them
and could not see anything wrong. I reheated them with a soldering iron
and it worked.
Good luck
Ronald
> ----------
> From: SHETTI.NITIN.MANGESH[SMTP:shettin@giasbmc.vsnl.net.in]
> Sent: donderdag 14 januari 1999 1:19
> To: handyboard@media.mit.edu
>
> Dear Friends,
> We, at VESIT ,Bombay,India are making a rover which is
> capable
> of navigating itself and avoiding obstacles.For this,we are using the
>
> handy board.The soldering work has been completed and we are now
> trying to
> use 'download software' with it.
> In the handy board assembly manual it has been said that
> inorder to check the charger/interfacing circuit, connect only the
> that
> circuit(charger/interfacer) without the handy board to the host
> computer
> using a appropriate modem cable (RS232).Then the charger/interface
> board
> has to be powered causing the red LED(PWR) to glow. Next,the download
> software has to be run. At this stage the green LED on the board
> should
> glow up indicating transmission of data (or readiness to transmit
> data).We
> are finding that the green LED(SER) does not glow in our
> circuit.(please
> refer to section 3.3.2 of the hba.pdf file for more explanation)
> We are therefore unable to find whether this particular
> board
> is working and hence we cannot risk connecting the handy board to the
> charger/interfacer board.
> Can someone please tell me what are the possible reasons
> causing
> this to occur?Please reply as soon as possible as we have to begin
> testing
> the program to run the rover.
> Yours Sincerely,
> Nitin
>
>
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