Hello SRS, A month or so ago I asked if anyone had seen a "director's cut" of the Will Smith movie: i-Robot. It was in with another question and never got...
twcarroll@...
Dec 1, 2005 7:12 pm
26450
Hi everyone. I got the following email from Seattle Times reporter Stephanie Dunnewind. She's looking for some people to talk to for a holiday story. Please...
I'm trying to figure out how to write data to the DS1305's NV RAM, over spi, on a 68hcs12. The data is an unsigned long Integer, with a maximum value (held...
... Well, lets see. A long is 32-bits in size. That's 4 bytes long. So, to write your value, you need to send out 4 bytes. A quickie little routine to do that ...
In C, to split up a long, what you want to do is something like: unsigned long FullDataValue = 999999; unsigned char Bytes[6]; for( int index = 0; index < 6;...
... 8 bits into the lowest 8 bits for the next ... It's the gnu-m68hc11 compiler. Will this "safely" handle a number like: 15 and a number like 12345 ? I'm...
... 8 bits into the lowest 8 bits for the next ... It's the gnu-m68hc11 compiler. Will this "safely" handle a number like: 15 and a number like 12345 ? I'm...
The compiler will do the right thing, setting bytes to 0 as necessary -- i.e. it will correctly set *all* bytes in your variable. When you define the variable,...
... I don't use C much, so take this post with a grain of salt. But I do tend to remember most things I read.. For 3, the compiler keeps the variable as all...
John The sizeof() operator returns the number of bytes in a variable or record. Be sure to use this if you are at all concerned about portable code, or don't...
Michael Holder
md.holder@...
Dec 2, 2005 2:13 am
26459
John, a correction [dereferencing the pointer], The sizeof() operator returns the number of bytes in a variable or record. Be sure to use this if you are at...
Michael Holder
md.holder@...
Dec 2, 2005 2:20 am
26460
I just bought a CMU Cam 2. I was a little bit worried when I recieved the camera because the voltage regulator chip had been bent over about 45 degrees. When I...
Hi Bryan. We've found that the regulator on our CMU Cam (v. 1) very quickly gets too hot to touch when plugged in to the wall with the supplied adapter. I...
I had a similar problem where the drill tool numbers in the tool file did not match those in the excellon file. The techs at the pcb fab house realized...
Tony Mactutis
tony60@...
Dec 2, 2005 3:31 am
26463
Bent 45 degrees is not normal. But then it shouldn't cause any problems. Carefully straighten if you wish to. Hot is normal, in my experience with CMUCam 2. ...
CMUcams (both 1 and 2) run a bit warm, especially if you are using a wall wart that's over 8 or 9 volts. The higher the voltage the chip has to regulate, the...
Tom, I had similar problems (wierd, missing tools, etc). If you upgrade to the most recent version of eagle (4.15 or later, iirc), and use the SFE_special.cam...
... The time chip freezes when I do a write (on the LCD at least), but when I do a read, it doesn't freeze. I added a comment to each of the functions you...
I had the same problem with my cam 1. I pulled the voltage regulator off of mine and supply the voltage it needs from an external switching voltage regulator....
Hi John, ... The way that SPI works is that it's writing a byte it's simultaneoulsy reading a byte. So every transfer in either direction requires BOTH a write...
I also learned the technique before encountering the tech note. I don't think Maxim invented the technique, but they've coined a term for it which is useful...
This is not about technical but more people's response to the lights. I have shown the video all over the place, I just think it is great and just jealous I...
FYI "NASA announced two new cash prizes Friday, each with a weighty $250,000 purse, in a pair of contests aimed at developing robotic systems for space...
... Dave - thanks. Looking at the code to set/read the alarm, I wondered if it was as such. The library does not have either of the 68hc11 or 68hc12 books...
Hello - I have a diabetic testing meter that did not come with a computer cable. I have the software that came with it. I would like to hack together my own...
Hi Jason, ... Nope. USB uses entirely different signalling than RS-232. ... If you buy a USB to serial port adapter, it should come with software drivers. All...
The thing to consider is, whether or not there are some electronics in the meter's cable. The signal levels on the meter's port could be TTL levels and the...
Having problems with message search?
Fill out this form to ensure your group is one of the first to be migrated to the new message search system.
