Subject:
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Re: RCX Serial Hardware Hack
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Newsgroups:
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lugnet.robotics.rcx.legos
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Date:
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Thu, 29 May 2008 11:55:53 GMT
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Viewed:
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26429 times
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Dear Matthew
> * So if I understand these posts correctly, 4800 baud now works with the IR
> connection and not just with the hardware hack?
A: Now it works with 4800 baud via bluetoothconnection .
There was a couple of Problems.
1) At first i tried with the USB Tower but i coult only swith to 4800 bauds but
there is no possibilty to change parity.
2) With the serial Tower i could change ti 4800 baud an no parity but i used on
the laptop a USB to Serial converter. Maybe this is the problem. I'm not sure.
3) a)Now a load the "normal 2400 baud + paritiy" brickos 0.9.0 Software with the
USB Tower down to the RCX.
b) Download the SW witch switch the baudrate 4800 doen to the RCX.
c) Start the SW on the RCX and witch send and receive messages and i had succes
with the Serial Bluetooth.
YES it works now.
> *A couple posts from Dick Swan in the earlier thread noted the differences
> in "IR transceiver" chips between RCX 1.0 and 2.0--will the software updates
> work @ 4800 baud with a 1.0 RCX, or does this need to be tested?
A: The only difference bwtween 1.0 and 1.5 to 2.0 RCX is the IR receiver chip on
the RCX
RXC1.0 use 38hkz carrier and the RCX 1.5 2.0 use 76.khz carrier witch gives a
better solution for 4800 khz but you can't change parity on the Infrared TOWER
SW on the PC..
> * In your final implementation, does the Bluetooth module communicate with
> the RCX via IR ( as seems to be described in • A: Yes
>
http://www.tik.ee.ethz.ch/~beutel/projects/sada/2002ss_erni_reichmuth_presentation.pdf
)
> , or did you connect the Bluetooth module via the hacked serial port?
A: I connect the Bluetooth module via hacked serial port ( oh my dear you need
good eyes, a tiny solerding iron and a quiet room to do the hardware hack, dont
allow that your wife or kids comes in). But now i have done the hardware change
to my two RCX's 1.5 and 2.0.
> * Are the changes to lnphost available as a patch?
A: Yes it's till now more experimental, but it works.
writen in visual C 2005
best regards
Bernhard
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Message is in Reply To:
 | | Re: RCX Serial Hardware Hack
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| Glad to hear it is working--thank you for the update. If I may ask, I have a few questions-- * So if I understand these posts correctly, 4800 baud now works with the IR connection and not just with the hardware hack? *A couple posts from Dick Swan (...) (17 years ago, 24-May-08, to lugnet.robotics.rcx.legos)
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