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Attiny261 AVCC
Hi, I am looking at the attiny261. In the latest datasheet I could find on the atmel website, Rev2588a -10/6. -There is a Pin labeled AVCC. -No mention in the datsheet about...
Wednesday, 17 December 2008 - 04:33
Eagle layout, setting up visual cues for spacing.
Hi, When I route my pcb boards, each time a new track is laid down I run DRC and that takes up alot of time. Is there a way to setup some visual cues, say a 6mil hatch around my...
Tuesday, 16 December 2008 - 17:57
Interactive autorouter
which pcb layout packages have an interactive autorouter? I would like to autoroute on a pin to pin basis so that I can exercise more control over the layout. Regards, Alan To
Tuesday, 16 December 2008 - 17:53
A tale of 2 grounds
Hi all, I am designing a device for an automotive application. I have put in 2 separate grounds for my device: -uC ground, this is for the uC and other ICs, the ground current...
Wednesday, 26 November 2008 - 03:30
Ideas for wasting current.
I have a buck converter that I am working on. Based on the inductor size that I use, the switching freq and input vs output voltage, I need about 200ma to get the buck converter...
Saturday, 1 November 2008 - 00:38
4 layer PCB, what extension for inner layers for gerber?
Hi guys I am making my first 4 layer PCB, what is the normal file extension name for the inner 2 layers when submitting gerber files. I know that the top layer is ".CMP" and the...
Tuesday, 21 October 2008 - 00:02
FTP server how can I check it is running?
I am a total linux newb. I managed to get my NGW to boot off SD, I was just about to make the giant leap into hello_world.c, but I can not ftp to my NGW. I am able to ping the NGW...
Monday, 15 September 2008 - 04:25
Eagle Layout, polygon fill
Hi Guys, I am trying to use a create a ground layer using the polygon fill. However around one of the chips, it does not want to fill it in. In the emptiness there is no signal...
Sunday, 24 August 2008 - 05:45
AVR and Freescale MC14489BP 7 segment Driver, help please!!!
You guys have never let me down before, so here goes. I have been having problems with having the AVR drive the MC14489 7 segment LED driver IC. The com protocol is SPI. Here is...
Saturday, 16 August 2008 - 02:26
Eagle PCB, Tstop/Bstop on vias?
I notice in eagle that by default there is a tstop and bstop on all the vias. Can you remove the tstop and bstop on the vias? What is the advantage of not having a solder mask on...
Friday, 18 July 2008 - 19:14
Reflash NGW, stalls at "generating RSA key"
I reflashed my NGW, now it just stalls when it tries to generate the RSA key during bootup. Can someone give me some help? Regards, Alan To
Tuesday, 13 May 2008 - 02:08
4 layer pcb, questions.
It is time for me to do a 4 layer pcb, I have experience with 2 layer but I am a 4 layer virgin. Where should I put the ground layer? Should I have 2 ground layers, 1 below each...
Saturday, 26 April 2008 - 01:49