 | | ___cmpsi2
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Using a multiplication between an int (in my case time_t) and a double number results in the following error: main.o(.text+0x72):main.c: undefined reference to `___cmpsi2' Can someone help me? I'm running egcs 1.1.2 and binutils 2.12. Eric (23 years ago, 9-May-02, to lugnet.robotics.rcx.legos)
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| | Re: Powered Sensors
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Ok, I have gotten myself confused again. 0-0.32mA represents a voltage dropbetween 0 - 3.2 volts. Therefore the voltage that the RCX "reads" on theA2D is between 5 - 1.8 volts (1023 - 368 RAW)? To get a reading of 0 (RAW)it seems as though you would (...) (23 years ago, 8-May-02, to lugnet.robotics.rcx.legos)
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| | Re: Converting a float to an integer
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(...) float f = 1.4; int i = (int)((i >= 0) ? i + 0.5 : i - 0.5); OR if (f >= 0) i = (int)(i + 0.5); else i = (int)(i - 0.5); This is assuming you want to round to the nearest integer. Just curious, where are you getting the ascii strings that you (...) (23 years ago, 8-May-02, to lugnet.robotics.rcx.legos)
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| | Converting a float to an integer
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Hopefully this isnt a silly question. Does anyone know how to covert a float to an integer? It doesn't appear that the function atoi exists. Michael. (23 years ago, 7-May-02, to lugnet.robotics.rcx.legos)
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| | Re: Powered Sensors
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----- Original Message ----- From: "John Barnes" <barnes@sensors.com> Newsgroups: lugnet.robotics.rcx.legos Sent: Tuesday, May 07, 2002 2:23 PM Subject: Re: Powered Sensors (...) the (...) across (...) Ok... lets see if I understand this.... For (...) (23 years ago, 7-May-02, to lugnet.robotics.rcx.legos)
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| | Re: Powered Sensors
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No, the RCX knows nothing about the diodes. That is why devices like the light sensor only send a current signal in the range 0 - 0.32mA back to the RCX. This current then creates a voltage drop across the 10k reference resistor with respect to the (...) (23 years ago, 7-May-02, to lugnet.robotics.rcx.legos)
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| | Powered Sensors
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Hello all, I recently purchased "Extreme Mindstorms - An Advanced Guide to LEGO Mindstorms" and I must say it is one of the best books out there for the power user. I have a number of questions regarding powered sensors. First of all, when the RCX (...) (23 years ago, 7-May-02, to lugnet.robotics.rcx.legos)
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| | Re: Next test version avail. 0.2.6.05 - have time?
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(...) I'm not sure if that's a good idea. Of course, they can always be a compiler switch to turn them off if you don't want them. The thing is, though, that there are lots of tradeoffs between speed, memory use, and accuracy in this kind of (...) (23 years ago, 6-May-02, to lugnet.robotics.rcx.legos)
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| | Re: Next test version avail. 0.2.6.05 - have time?
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Ok, this brings up an interesting question... What is the best way to use LNP with windows? the version of WinLNP that I see is _ancient_ and requires VC++ to work.... so I see that there is a linux version, I was wondering it would be possible to (...) (23 years ago, 6-May-02, to lugnet.robotics.rcx.legos)
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| | Re: cygwin messed up?
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Jason, There is a problem within the Makefile logic atleast with some windows OS. What OS are you trying it on? I submitted a bug to the legOS project on sourceforge ((URL) and submitted a suggestion for a fix here ((URL) is happening (atleast on my (...) (23 years ago, 6-May-02, to lugnet.robotics.rcx.legos)
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