Search found 657 matches

by TheDirty
Fri Jun 17, 2011 8:50 am
Forum: Everything ARM and LPC
Topic: is JTAG needed for SAM7 processors
Replies: 9
Views: 1872

Re: is JTAG needed for SAM7 processors

Like mentioned, the J-Link EDU is the best if this is used for non-commercial development. J-Link supports both JTAG and SWD. Both the Olimex ones above are sold at Sparkfun. The USB one is a standard FT2232 based JTAG. Whatever you use, its more important that the development environment you are us...
by TheDirty
Wed Jun 15, 2011 9:52 am
Forum: Everything ARM and LPC
Topic: is JTAG needed for SAM7 processors
Replies: 9
Views: 1872

Re: is JTAG needed for SAM7 processors

For SAM7 the USB bootloader is called SAMBA. It's just a bootloader, though. No debugging.

ARM7 is old news, though. Unless you have a specific reason to use ARM7, you should be using the Cortex-M3 chips.
by TheDirty
Sat Jun 11, 2011 7:13 pm
Forum: PCB Design Questions
Topic: Eagle: How to make common GND region?
Replies: 6
Views: 2010

Re: Eagle: How to make common GND region?

If you google 'eagle ground plane' you'll find some step by steps.

To name the polygon, use the name tool and select the edge of the polygon. Name it the same as your ground net name, I assume GND. When you hit ratsnest it will fill the polygon and it will be connected you your ground net.
by TheDirty
Sun May 29, 2011 7:31 am
Forum: PCB Design Questions
Topic: Vias for home etched boards?
Replies: 17
Views: 3899

Re: Vias for home etched boards?

I'll have to try that. I wonder if solder paste might work the the same effect???...dispense paste from a needle to both sides, and heat one side. I made a video of my method which uses paste once, but it's too blurry to be useful. I've explained this a few times, but for some reason nobody has bot...
by TheDirty
Tue Apr 26, 2011 4:19 am
Forum: PCB Design Questions
Topic: Can't find simple coil in eagle?
Replies: 4
Views: 2495

Re: Can't find simple coil in eagle?

The RCL library has your axial inductor in it.
by TheDirty
Tue Mar 15, 2011 7:40 pm
Forum: PCB Design Questions
Topic: Eagle: Yellow X of death on vias?
Replies: 9
Views: 9116

Re: Eagle: Yellow X of death on vias?

On the original post: was the via 'named' correctly? If you drop a via on it's own with the 'via' tool, it's assigned its own net name. You have to name it with the name tool the same as the net you want it attached to. This stumps a lot of new Eagle users.
by TheDirty
Tue Feb 22, 2011 8:14 pm
Forum: PCB Design Questions
Topic: Drawing tablet for PCB design?
Replies: 4
Views: 1844

Re: Drawing tablet for PCB design?

I have a cheap version of the Wacom tablet, though all the functionality is there. It works well, but even for photo editing, what I got it for originally, it's just not very good. Nothing like the full screen over monitor tablets that are used and a mouse is just so much better than even the 8" tab...
by TheDirty
Fri Feb 18, 2011 6:12 pm
Forum: PCB Design Questions
Topic: How does my DIY SMD stencil look? *pictures*
Replies: 12
Views: 2070

Re: How does my DIY SMD stencil look? *pictures*

Non-information anger rising!

Image
by TheDirty
Thu Feb 17, 2011 8:55 pm
Forum: PCB Design Questions
Topic: How does my DIY SMD stencil look? *pictures*
Replies: 12
Views: 2070

Re: How does my DIY SMD stencil look? *pictures*

I can get tombstoning with too much paste. That's when the 0805/0402 stands up on one side. Also, too much paste will cause a chip with a thermal pad to 'float' or be raised a little off of the board. Other than bridging, that's the only issues I have.

Generally I use vary little paste.
by TheDirty
Thu Feb 17, 2011 8:18 pm
Forum: PCB Design Questions
Topic: How does my DIY SMD stencil look? *pictures*
Replies: 12
Views: 2070

Re: How does my DIY SMD stencil look? *pictures*

Details, now!

It's a little more solder than I would use, but I'm not certain if it's too much. The stencil is a little thick.
by TheDirty
Mon Feb 14, 2011 12:54 pm
Forum: PCB Design Questions
Topic: Download: SparkFun Parts Library for KiCad
Replies: 1
Views: 5935

Re: Download: SparkFun Parts Library for KiCad

Thanks for this. I keep trying to get the initiative to start working with KiCad. The thought of redoing all my libraries is pretty daunting.
by TheDirty
Tue Jan 18, 2011 7:39 am
Forum: MSP Microcontrollers
Topic: MSP-JTAG-TINY and Code Composer Studio 4 Problems
Replies: 3
Views: 4079

Re: MSP-JTAG-TINY and Code Composer Studio 4 Problems

It's been a while and I don't actually have this, but have you tried the directions on the Olimex page?

http://www.olimex.com/dev/msp-jtag-tiny.html

Also the Olimex is a USB-FET emulator, so it shouldn't have it's own selection. You should be using the USB-FET selection.
by TheDirty
Fri Jan 14, 2011 2:47 pm
Forum: Everything ARM and LPC
Topic: LPC 1766STK and ARM-JTAG-EW problem
Replies: 14
Views: 5657

Re: LPC 1766STK and ARM-JTAG-EW problem

I don't use IAR, but the fact that it says J-Link up there tells me it's looking for a Segger J-Link and not the Olimex device.
by TheDirty
Sun Dec 26, 2010 7:20 pm
Forum: Everything ARM and LPC
Topic: STM32103xx minimum programming interface?
Replies: 4
Views: 2205

Re: STM32103xx minimum programming interface?

Well, I only use 5 wires, but with the 10pin connector it always works for me, but they are pretty expensive. A 5 pin 0.1" header takes about the same space, but is cheaper. I only tried the 5 pin connector on one board, but I could not get it working for some reason. It must be something I'm doing,...
by TheDirty
Sat Dec 25, 2010 7:28 pm
Forum: Everything ARM and LPC
Topic: STM32103xx minimum programming interface?
Replies: 4
Views: 2205

Re: STM32103xx minimum programming interface?

Speaking only with experience with the LPC1xxxx SWD programming, reset is not an option. 3.3V is sometimes an option depending on your programmer, but generally you need 5 pins. 3.3V, GND, SWDIO, SWCLK, and RESET. Search SWD connector for the standard 10 pin 1.27mm SWD connector. I've tried using a ...