 | | Re: RCX Serial Hardware Hack
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"Claude Baumann" <cbaumann@ci.educ.lu> wrote in message news:K1E031.y4@lugnet.com... (...) I was able to retrieve it from archive.org - (URL) . (16 years ago, 28-May-08, to lugnet.robotics.rcx.legos)
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| | Re: RCX Serial Hardware Hack
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(...) The carrier should be quiet in any case, because it disturbs the TX signal. (...) We tried this,but it didn't work. Why, because the transistor will drain some current, if the emitter has positive voltage and the base goes low. If the carrier (...) (16 years ago, 24-May-08, to lugnet.robotics.rcx.legos)
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| | 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 (...) (16 years ago, 24-May-08, to lugnet.robotics.rcx.legos)
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| | Re: Success
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Hi I have implemented the stuff // and set the port6<7> pin LOW. Now the upper PNP transistor isn't conducting anymore. Now TX and RX works Here are the program #include <lnp.h> #include <conio.h> #include <string.h> #include <lnp-logical.h> (...) (16 years ago, 20-May-08, to lugnet.robotics.rcx.legos)
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| | RCX Serial Hardware Hack
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Hi As allready described in a other thread i have build a bluetoothconnection between pc and the RCX. There is one thing that the serial bluetooth is only available to tx/rx with a minimum from 4800 baud. At first i compiled brickos 0.9.0 with (...) (16 years ago, 20-May-08, to lugnet.robotics.rcx.legos)
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| | Re: brickos 090 problem no program download with CONF_LNP_FAST
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(...) I have found the thread, its in (URL) is a also a 2 thread in (URL) the usb tower dll. and a c program called joybricxsrc.zip I looked short in the header files LEGOUSBTowerioctl.h and there is a posibility to set the speed #define (...) (16 years ago, 3-May-08, to lugnet.robotics.rcx.legos)
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| | Re: brickos 090 problem no program download with CONF_LNP_FAST
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.Sorry for the delay Now i am in italy , triest. so i just do a short look in the messages. Thanks for the answers. In meantime i recogmised too that there is no serial baud rate change in the dll for the usb. I think i have something at home what i (...) (16 years ago, 3-May-08, to lugnet.robotics.rcx.legos)
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| | RE: brickos 090 problem no program download with CONF_LNP_FAST
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Somewhere in the bowels of the header files within the RCX SDK is a list of "IODEVICE control commands" which does include description of messages required to change baud rate on the USB tower. I am assuming you're not using the LEGO Windows DLL (...) (16 years ago, 30-Apr-08, to lugnet.robotics.rcx.legos)
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| | Re: brickos 090 problem no program download with CONF_LNP_FAST
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Hello Bernhard, (...) I just checked the source code. There is no speed setting for usb tower in the code. If you look into firmdl3 you also find that fast mode is disabled for USB, because it doesn't work. I think the USB tower sends at 2400 baud (...) (16 years ago, 30-Apr-08, to lugnet.robotics.rcx.legos)
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| | RE: brickos 090 problem no program download with CONF_LNP_FAST
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You should scan for some old posts by either John Barnes or Philo concerning the different "IR transceiver" chips used between RCX 1.0 and 2.0 and between serial vs USB towers. As I recall: Serial tower can only transmit 38 KHz carrier. It's IR (...) (16 years ago, 30-Apr-08, to lugnet.robotics.rcx.legos)
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