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Has anyone here have the joy of working with board that used this crap? Because holy poo poo CPCI sucks.
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Jun 14, 2017 19:52
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Popete posted:Last place I worked at developed COTS embedded form factor units that had these and other insane connectors and where often plugged into a backplane like that. It was hell trying to pull a board out and often you'd cut up your hands when it finally came out. Why do you think I hate cPCI so much. VME was, ok, it was pins but it felt like they were durable. cPCI you could look at them funny and they'd bend. Also, I'm pretty sure the one that drove you nuts was VPX, right?
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Jun 15, 2017 03:42
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Popete posted:Had to remember which one VPX was and it made my hands hurt thinking about pulling those things off their backplanes. Either your backplane had the 2 side posts to help guide the board into place without breaking the "fins" in which case the board was a bitch to pull back out, or you didn't have the side posts and the board was easy to pull out but you ran the risk of it bending and breaking pin fins or seating it at a bad angle. Yup, VPX was great because holy hell was it rugged unlike the other major types, but a pain in the rear end because of it. I remember having to wiggle it out.
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Jun 15, 2017 05:56
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sliderule posted:I administer a Motorola telecom switch that uses CPCI. Goddamnit those boards can be sharp. At least the switch has guide rails. When you don't have them, you're more than likely to bend pins, which is  and how.
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Jun 16, 2017 03:52
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Bumping this to say I'm in an intro to microcontrollers class. A class that I should be able to test out of if I could but I can't. And we're using Freescale chips.
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Sep 26, 2017 20:49
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Yes, code warrior. Jokes on them, I edit in vim and only compile in that.
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Sep 29, 2017 00:27
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It's free to use, but it doesn't change that it's poo poo.
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Sep 29, 2017 00:59
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Blotto Skorzany posted:CodeWarrior from 10.x on is just a rebranded Eclipse now. From poo poo to even worse poo poo.
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Sep 29, 2017 02:48
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Popete posted:If you dump on Atmel I take that as a personal attack. Fight me.
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Sep 30, 2017 05:00
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 I hope whoever failed to check that in QA got sacked.
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Sep 30, 2017 05:48
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So, on the Dragon 12 Lights, there's a keypad on them. Cool. They're tied to GPIO Port A. Port A doesn't have hardware interrupts on it.  Oh, and to make things better, one of the ports that DOES support interrupts... is tied to dip switches.
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Oct 4, 2017 02:16
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I've always said to be an embedded developer you need to be a masochist.
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Nov 9, 2017 03:45
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Inspired by this thread, for my final project in my micro class, I named the team I'm on "Team 640k".
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Nov 9, 2017 22:34
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Mr. Powers posted:Woah. 640k is NOT a power of two. What were you thinking?!?!? I'm thinking it's enough memory for this project.
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Nov 9, 2017 23:39
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One part "no archives for you", one part amusement: The ATmega328 has four different form factors. The amusing thing is the SPDIP can be bought individually direct from Microchip, but if you want another form factor you have to buy in multiples of at least 250.
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May 7, 2018 13:55
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I can't wait to get this I2C library done. It is a royal pain my my rear end (I'm writing it from scratch because A. so I can demonstrate it to prospective employers, and B. I'm a giant masochist). e: at least I have an LCD screen to assist me in debugging. It's made my life so much easier. iospace fucked around with this message at 06:20 on May 14, 2018 |
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May 14, 2018 06:10
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The problem is this magnetometer (it's a compass project) is being set to continuous conversion mode annnnnnnnnd it doesn't want to keep on spitting out data for whatever reason. E: single byte read and write work, so I have that going for me. iospace fucked around with this message at 21:54 on May 14, 2018 |
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May 14, 2018 21:26
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It's a slave device only. There's a second sensor (accelerometer) on it, but that has its own I2C address. My issue is it's continuously reading it but the data isn't changing. The sensor, for what it's worth: https://www.adafruit.com/product/1120 (I bought this a while ago and only now am finishing this up). iospace fucked around with this message at 01:03 on May 15, 2018 |
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May 15, 2018 00:58
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I got it working!  Mostly because A. I realized the entirety of the data had to be read, and B. the coordinates are X Z Y, not X Y Z. Now to get it working with a multi-read, not single byte reads. iospace fucked around with this message at 01:44 on May 15, 2018 |
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May 15, 2018 01:41
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How much of a bitch is SPI? Asking for a friend.
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May 15, 2018 04:01
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Alright. I seem to be hanging up on the multi-read when I sent the first ACK to the slave for the first data byte, but it never sends it back it seems so TWINT never goes high or something. If I don't check TWINT I get an error so.
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May 15, 2018 04:16
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csammis posted:I was all set to call BS on this but sure enough that’s what the datasheet says I know! I'm all "Wait, what the gently caress? Who thought THIS was a good idea?" The interesting thing, though this may be EMF from my computer so who knows, is my dad's iPhone was reading 186 when I was getting 180. Forgot to check North.
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May 15, 2018 04:27
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I knew that magnetic north is not true north, which is why when I removed it from my desk and took it into the kitchen, it was a bit more accurate I felt. Either way, the basic functionality is there, now it's time to get it really working! (the feeling I got when I saw the numbers update constantly reminded me why I do this poo poo) e: dicking around with it in class, holy hell there has to be some really crazy magnetic fields because it was going nuts. iospace fucked around with this message at 22:00 on May 15, 2018 |
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May 15, 2018 14:03
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Ok this is weird. Apparently something went haywire because now when I point it north it still says west. The exact degree readings are coming still but what the gently caress.
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May 16, 2018 04:43
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Mr. Powers posted:What accuracy are you shooting for? Intracardinal is not too bad to obtain with good repeatability. Low double digits starts to need some compensation algorithms. Single digits will require active hard iron/soft iron compensations. Under 1 degree requires advanced degrees in math and algorithms. I'm not talking a few degrees off here. I'm talking when I point it north it still says west, even if I turn it eastwards first.
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May 16, 2018 13:59
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