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| Search found 30 matches |
| Author | Message |
|---|---|
 Topic: General circuit power question from 12V source |
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| Yashu Replies: 26 Views: 32358 |
 Forum: General CCS C Discussion Posted: Thu Jun 23, 2005 9:55 pm Subject: Re: General circuit power question from 12V source |
| 2 sec finger hold with no heatsink in no big deal, but, use a heatsink
Two seconds with how many segments active? I estimate the current consumption of the entire circuit to be of the order of 180m ... |
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| Topic: General circuit power question from 12V source |
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| Yashu Replies: 26 Views: 32358 |
Forum: General CCS C Discussion Posted: Wed Jun 22, 2005 8:04 pm Subject: Re: General circuit power question from 12V source |
| First off, let me start by saying that I am just getting into this whole circuit design, so if it sounds like any of these are nooB questions, well, they are.
Alright, so I made a circuit for autom ... |
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| Topic: which one is better choose for level shifter from 5v to 3.3v |
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| Yashu Replies: 6 Views: 13774 |
Forum: General CCS C Discussion Posted: Sun Mar 27, 2005 12:37 am Subject: which one is better choose for level shifter from 5v to 3.3v |
| THANKS FOR REPLY.
COULD YOU SEND A SCHEMATIC OF A PROPER SHIFTER? THANKS. SN74CBTD3306 |
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| Topic: proper level shifter @8Mhz |
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| Yashu Replies: 2 Views: 6903 |
Forum: General CCS C Discussion Posted: Sun Mar 27, 2005 12:35 am Subject: Re: proper level shifter @8Mhz |
| hi,
i want use avr @16mhz @5v connect to mmc card @3.3v. the spi bus speed is 8Mhz(clk/2). could any one give me a good level shifter for that frequncy? i want the circiut is small. thanks. SN ... |
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| Topic: Fat16 write function for compact flash card |
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| Yashu Replies: 13 Views: 22159 |
Forum: General CCS C Discussion Posted: Sat Feb 19, 2005 10:49 am Subject: Fat16 write function for compact flash card |
| http://www.micrium.com/contents/products/file_system.html | |
| Topic: Bluetooth HCI Stack |
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| Yashu Replies: 3 Views: 7616 |
Forum: General CCS C Discussion Posted: Tue Feb 15, 2005 9:21 pm Subject: Re: Bluetooth HCI Stack |
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I just cannot justify running a pre-emptive, multi-tasking OS just to send BT wireless data @ 750kb/s and I get nauseous when looking at the "rack-em-stack-em" modules from like blueradios.com and a ... |
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| Topic: Bluetooth HCI Stack |
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| Yashu Replies: 3 Views: 7616 |
Forum: General CCS C Discussion Posted: Tue Feb 15, 2005 7:12 pm Subject: Bluetooth HCI Stack |
| Anybody have good info or references to a BT HCI Stack that can be run with any of the popular compactflash cards coming out? or even a BCSP stack? A simple piconet point-to-point.
That is, no cash ... |
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| Topic: noise problem? |
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| Yashu Replies: 8 Views: 12639 |
Forum: General CCS C Discussion Posted: Mon Feb 14, 2005 1:06 am Subject: noise problem? |
| What's your brownout detect config bit burned to?
Also, must agree with valemike's common mode choke recommendation. |
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| Topic: Best way to drive a 10 Amp Solenoid??? Please help!!! |
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| Yashu Replies: 4 Views: 8872 |
Forum: General CCS C Discussion Posted: Sun Feb 13, 2005 4:55 pm Subject: Best way to drive a 10 Amp Solenoid??? Please help!!! |
| Watch out for glitching occuring on your ground when turn the thing on/off. You probably don't want to turn that FET on 'hard'. | |
| Topic: Intro to USB |
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| Yashu Replies: 7 Views: 11834 |
Forum: General CCS C Discussion Posted: Wed Feb 02, 2005 8:48 pm Subject: Intro to USB |
| I would suggest the FT232BM from FTDI (www.ftdichip.com). It will allow you to immplement a USB interface to your PC while maintaining a simple serial (UART) interface to you embedded project.
You wi ... |
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| Topic: Electronic Enclosures |
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| Yashu Replies: 5 Views: 10339 |
Forum: General CCS C Discussion Posted: Fri Jan 28, 2005 10:03 pm Subject: Re: Electronic Enclosures |
| Sorry for the off topic question, but I hope someone can help me ...
For a product under development, I am looking for a supplier of "small" aluminum extruded enclosures. Any lead ??? Thanks, ... |
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| Topic: OT: SuperCap for SD memory 'loss of power' write completion |
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| Yashu Replies: 1 Views: 7636 |
Forum: General CCS C Discussion Posted: Thu Jan 06, 2005 1:15 am Subject: OT: SuperCap for SD memory 'loss of power' write completion |
| I'm contemplating using a double layer capacitor with a power hi-side switch (like the TI TPS2081) which will detect inadvertent loss of the main supply voltage and subsequently switch to the supercap ... | |
| Topic: SD memory card code |
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| Yashu Replies: 5 Views: 13864 |
Forum: General CCS C Discussion Posted: Wed Jan 05, 2005 10:29 pm Subject: Re: SD memory card code |
| Some time ago I struggled through using a Secure Digital Memory card. During that time I was pointed to a library, and thought someone here may also need some advice.
I decided to buy the PRLLC lib ... |
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| Topic: CAN bus optical isolation |
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| Yashu Replies: 18 Views: 33459 |
Forum: General CCS C Discussion Posted: Sun Dec 19, 2004 12:01 pm Subject: CAN bus optical isolation |
| A follow up:
You can't spare using CAN-bus transceivers on each side of the isolation border. These transceivers have splitted unidirectional data lines on their host side anyway, so there is no need ... |
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| Topic: Code proctection and firmware updates? |
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| Yashu Replies: 3 Views: 8416 |
Forum: General CCS C Discussion Posted: Tue Sep 28, 2004 6:32 pm Subject: Re: Code proctection and firmware updates? |
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I thought about encrypting the code once but then I thought if those guys are smart enough to reverse-engineer my code successfully then they deserve to have it 
touchee... and if they can ... |
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