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search: Posts Made By: taichichuan
Forum: Programming 04-15-2012, 07:57 AM
Replies: 4
Views: 1,710
Posted By taichichuan
Change size of text field in Smart Dashboard?

Greetings!

We're trying to bring the RPM of our shooter back to the driver station during the match. But, the size of the standard text field on the smart dashboard is way too small. I've looked...
Forum: Programming 04-15-2012, 01:17 AM
Replies: 9
Views: 2,157
Posted By taichichuan
Weird Socket Problem with Arduino & cRio

Hi Fellow FIRSTers,

OK, we're trying to use an Arduino to sample the speed of our shooter and the angle of the ball guide. We're using Ethernet on the Arduino because the cRio II doesn't lend...
Forum: C/C++ 02-18-2012, 03:53 PM
Replies: 16
Views: 2,256
Posted By taichichuan
Re: ADXL345_I2C Help

Did you ever resolve this issue?

TIA,

Mike
Forum: C/C++ 12-15-2011, 09:46 AM
Replies: 1
Views: 766
Posted By taichichuan
Re: FIRST 2012 C++ Demo -- SE WIsconsin

Any chance that you can put a video up on Youtube for those of us too far away to make it in person?

Thanks!

Mike
Forum: C/C++ 12-15-2011, 09:44 AM
Replies: 2
Views: 820
Posted By taichichuan
Re: 2012 C++ Beta - Open House/Demo by the Bronc Botz #3481

Any chance that you'll be putting this up as a live web feed or on Youtube for folks too far away to get there in person?

Thanks!

Mike
Forum: Technical Discussion 12-02-2011, 07:49 PM
Replies: 11
Views: 4,186
Posted By taichichuan
Re: Shifting Transmission: Auto or Manual?

Team 116 had an automatic shift built into the system early this season. We used supershifters and shifted based on the motor performance curves. But, we found that the shifting would catch the...
Forum: C/C++ 11-18-2011, 04:13 PM
Replies: 1
Views: 739
Posted By taichichuan
Re: Cannot load code into emulator after upgrading firmware

You have access to the Wind River Simulator? What version of Workbench are you using? The 2011 release of Workbench didn't include the simulator. Are you a 2012 beta-test team? If so, what...
Forum: C/C++ 11-18-2011, 04:07 PM
Replies: 6
Views: 1,954
Posted By taichichuan
Re: Will The New WPILib and WindRiver Support the New C++11 Standard?

I wouldn't hold my breath on C++11 from the WRS Workbench. I think we're still using VxWorks 6.3 on the cRIO for 2012. Perhaps one of the beta test teams would care to comment? What version do you...
Forum: C/C++ 11-18-2011, 03:59 PM
Replies: 13
Views: 6,611
Posted By taichichuan
Re: RTP or kernel module?

VxWorks is a flat memory model for FIRST purposes. All code can see all memory and all applications (kernel modules) run in supervisor state. The RTP interface is a way of running code in user...
Forum: CAN 11-18-2011, 03:29 PM
Replies: 12
Views: 1,750
Posted By taichichuan
Re: Jaguars not passing CAN communications

Probably restating the obvious here, but make sure that you reprogram the CAN IDs on the Jags before plugging them into the bus. By default, the Jags all come with the same ID set. So, even if the...
Forum: General Forum 09-09-2011, 03:58 PM
Replies: 20
Views: 3,617
Posted By taichichuan
Re: Powerful computer

Are you looking for a laptop or a desktop? Is inventor the only program you'll be running on it or will you be using the C++ development environment on it as well (it makes a difference on the 32...
Forum: C/C++ 05-21-2011, 10:28 PM
Replies: 8
Views: 1,106
Posted By taichichuan
Re: Downloading Code with Windows 7

Greetings!

My team runs C++ on 64-bit Windows 7 and also found this problem with downloads. The solution for us was to use filezilla to transfer the .out after it had been compiled. The file...
Forum: CAN 04-04-2011, 12:06 PM
Replies: 129
Views: 14,477
Posted By taichichuan
Re: Unexplained intermittent CAN / 2CAN Jaguar problems at GSR

Routing CAN traffic through the radio could certainly cause problems. The radio's ports have a limited amount of buffer space before the 802.3x congestion control messages start flying around on the...
Forum: C/C++ 03-29-2011, 11:06 PM
Replies: 6
Views: 903
Posted By taichichuan
Re: VxWorks6x

Quite right on the subnet. OK, we've seen similar problems that were taken care of by copying the subdirectory of a working version of Workbench and copying it over the directory of a non-working...
Forum: C/C++ 03-28-2011, 06:03 PM
Replies: 6
Views: 903
Posted By taichichuan
Re: VxWorks6x

Judging from the screenshot, it looks like you're running Windows XP. This isn't 64-bit is it? The WRS workbench is somewhat finicky when running on 64-bit platforms.

The next step in debugging is...
Forum: CAN 03-28-2011, 04:43 PM
Replies: 129
Views: 14,477
Posted By taichichuan
Re: Unexplained intermittent CAN / 2CAN Jaguar problems at GSR

That might explain the serial CAN problems, but we saw them with the 2CAN via Ethernet as well. I think serial CAN tops out at something like 2K pps but the 2CAN jumps that to more like 8K pps from...
Forum: CAN 03-28-2011, 08:25 AM
Replies: 129
Views: 14,477
Posted By taichichuan
Post Re: Unexplained intermittent CAN / 2CAN Jaguar problems at GSR

Hi Gang!

Team 116 used CAN at the DC regionals as well with V29 and saw the exact same type of stuttering behavior as many of the other teams:

1) Correct/Proper wiring both CAN and Power.

This...
Forum: C/C++ 03-21-2011, 06:23 PM
Replies: 15
Views: 1,566
Posted By taichichuan
Re: Help with WindRiver pneumatics code

If you're seeing the solenoid bumper LED come on, then you're doing everything right as far as the software is concerned. Now, you've got to trace the wiring from the bumper to the actual solenoid...
Forum: Electrical 03-20-2011, 04:35 PM
Replies: 5
Views: 1,472
Posted By taichichuan
Re: Tin Whiskers

Yeah, I've heard rumors that some of the ROHS solder formulations were worse than others. In the mean time, I'm stocking up on 60/40 before they try to outlaw it all together. The team's got some...
Forum: Electrical 03-20-2011, 10:48 AM
Replies: 5
Views: 1,472
Posted By taichichuan
Re: Tin Whiskers

This is a particularly bad problem with the newer ROHS solder. In fact the new lead-free solders start to deteriorate after about 5 years and fail. Built in obsolesce for all of your new...
Forum: Programming 03-15-2011, 12:39 AM
Replies: 34
Views: 2,324
Posted By taichichuan
Re: Programming teams

Our team has 2 mentors and 8-10 students. We use SVN and google groups for collaboration. We've been pretty lucky this year with some good code written by the students and the opportunity to test...
Forum: C/C++ 03-12-2011, 06:54 PM
Replies: 6
Views: 1,720
Posted By taichichuan
Re: Line Tracking Code Help

Thanks for the info. We've gotten our line tracking code working and now we just need access to a real field for tuning!

Mike
Forum: C/C++ 03-12-2011, 12:38 AM
Replies: 6
Views: 1,720
Posted By taichichuan
Re: Line Tracking Code Help

Any chance you could post your autonomous code?

TIA,

Mike
Forum: Control System 03-09-2011, 10:56 PM
Replies: 2
Views: 1,285
Posted By taichichuan
Forum: Control System 03-09-2011, 07:55 PM
Replies: 2
Views: 1,285
Posted By taichichuan
Limit on price for new laptop?

Hi Gang,

I've been trying to find the thread but with no luck. If we want to use a laptop other than the classmate for our driver station in competition, what is the limit for it's price? I seem...
Showing results 151 to 175 of 328

 
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