I was hoping to only spend $1 to $2 for 32k SRAM (or SDRAM) to interface with the AT91SAM9260. Looking at the schematic for the AT91SAM9260...

I was hoping to only spend $1 to $2 for 32k SRAM (or SDRAM) to interface with the AT91SAM9260. Looking at the schematic for the AT91SAM9260 evaluation board, I can see it uses two Micron MT48LC16M16A2 32KB SDRAM chips. Looking on digikey.com and avnet.com, this chip is about $7 in quantities of 10,000, which is much too expensive for the project. Does anyone think I will be able to find 32...

Can anyone recommend any web site or book with a good basic tutorial on reading schematics, US symbols preferred to European? I have a...

Can anyone recommend any web site or book with a good basic tutorial on reading schematics, US symbols preferred to European? I have a colleague who is an experienced embedded programmer, but she never had any formal electronics training and she has asked me to try to find a resource. All suggestions appreciated. -- Jack Klein Home: http://JK-Technology.Com FAQs for comp.lang.c ht...

hello im a student working on my senior project. we have selected the hcs12 as our MCU for this project. however, things are not as easy when you...

hello im a student working on my senior project. we have selected the hcs12 as our MCU for this project. however, things are not as easy when you are asked to actually surface mout and connect the hcs12. we have 3 hcs12s (but naked) -the 112 pin chip alone. is there a way someone can help my by providing my with the most basic hardware set up schematic?. we have built about 3 pc boards and none ha...

I came across this schematic (well, my son dragged it into my...

I came across this schematic (well, my son dragged it into my attention): http://www.otd.kr/data/file/pj_LIMKB/1964092542_24157b90_Aikon28LIMKB29- SMD_Schematic.PNG This is for a universal keyboard controller. The thing that is really catching my eye, though, is that the thing appears to be set up to bit- bang the USB. Has anyone ever heard of doing this? Tried it? Succeeded? USB sl...

Hello ! We are an academic institution teaching our students VLSI design, from FPGA to full custom ASIC. We have put great value on...

Hello ! We are an academic institution teaching our students VLSI design, from FPGA to full custom ASIC. We have put great value on teaching VHDL during the past years with very good results from our students. However, we have the impression that these students have difficulties working with schematics as tools to document and express their architectural ideas, in part because we di...

I am currently develop a data logger system using MC68HC11A0 microprocessor with expanded mode. I am a bit confused with the mass information...

I am currently develop a data logger system using MC68HC11A0 microprocessor with expanded mode. I am a bit confused with the mass information that i get from the internet. Maybe someone who had done it before can provide me the schematic diagram to connect the SD card using SPI mode? Please send me the related source code to access the SD card if possible. Thanks.

Hi I have successfully built a tms470r1a256 board.I would like to program and debug using rowley crossworks with parallel port wiggler. Any...

Hi I have successfully built a tms470r1a256 board.I would like to program and debug using rowley crossworks with parallel port wiggler. Any body having success using wiggler on tms470 device? Could you please post a tested schematic on tms470 device since there are so many wiggler schematics available? nands7 --------------------------------------- Posted through http:/...

Currently, I am trying to interface the a cs8900a to the motorola 6812 microcontroller. A desecription and schematic of the board I am...

Currently, I am trying to interface the a cs8900a to the motorola 6812 microcontroller. A desecription and schematic of the board I am using can be found at http://www.invector.nu/iet8900.asp. Additionally, I have been using the cs8900a in 8 bit mode (or trying to). I am able to read from registers or any place in internal memory using the packetpage pointer and packetpage data registers (...

Hello all, I need a recommendation for an Ethernet chip. I plan to integrate it with an MCU (probably 8 bit). Either a PIC or an...

Hello all, I need a recommendation for an Ethernet chip. I plan to integrate it with an MCU (probably 8 bit). Either a PIC or an AVR. I've heard of the Realtek 8019AS. Is that a good chip to work with? Is good documentation and schematic examples available for it (i've heard otherwise). Is it considered a little dated given that its an old chip? If so, what others c...

hi group, I'm on a transition from software to embedded software job. however, I haven't used things such as logic analyzer or analog...

hi group, I'm on a transition from software to embedded software job. however, I haven't used things such as logic analyzer or analog boards for years. Now I need to fresh my mind and get some exprience on: layout, prototyping analog and digital circuits circuit schematic What should I do? how and where? any online resources? thank you, amit

Hello All, JTAG programming requires a little laptop for the lab. Nothing fancy, just a small machine that can dump code into an MSP430 or...

Hello All, JTAG programming requires a little laptop for the lab. Nothing fancy, just a small machine that can dump code into an MSP430 or similar. I don't write much firmware so processor performance for compile runs is no issue. A text editor and maybe schematic entry, too, but that doesn't require a lot of processing power either. Ideally it should have a long battery life. I k...

Does anyone have the schematic for the T-1000s controller. Google has too many ads for sale and not enough technical...

Does anyone have the schematic for the T-1000s controller. Google has too many ads for sale and not enough technical information. http://www.ebay.com/itm/T-1000S-SD-Card-LED-Controller-Pixel-RGB-Led-Control-Support-DMX512-LED- 5-24V-/351191769523?pt=US_Lighting_Parts_and_Accessories&hash=item51c4a921b3

I've posted an ICD2 PIC Programmer / Debugger on my site www.blueroomelectronics.com If you're interested in buying or building an ICD2 or just...

I've posted an ICD2 PIC Programmer / Debugger on my site www.blueroomelectronics.com If you're interested in buying or building an ICD2 or just want a great PIC programmer read the assembly manual I've posted. Comments welcome.

I am trying to get a presentable hard copy from Orcad SDT/386 which can be emailed etc to people. I have PLOTALL working, and outputting in...

I am trying to get a presentable hard copy from Orcad SDT/386 which can be emailed etc to people. I have PLOTALL working, and outputting in postscript, all fine, and by importing the .ps file into say Corel Draw I get a fine schematic. Except the fonts are useless. Remembering back to the 1980s, when I used to plot huge Orcad schematics on a $15000 Calcomp pen plotter (in HPGL emulatio...

Hi, I need to program a couple of old small assorted brand PAL (including GAL) chips. Is there any free software tool that can generate...

Hi, I need to program a couple of old small assorted brand PAL (including GAL) chips. Is there any free software tool that can generate jed files from Verilog (or ABEL and schematic) entry so that I can export to a universal programmer for downloading purpose? Thanks for any help. CFF

Hi all, I finally had the time to publish my latest work on my website: it is a small 32-bit ARM-based CPU card that is supposed to be the...

Hi all, I finally had the time to publish my latest work on my website: it is a small 32-bit ARM-based CPU card that is supposed to be the first one in a series. I named the design concept H-Storm, and it will contain CPU modules, peripherials and system boards. The design is open and free (for non-commercial uses) so both the schematic and the PCB can be downloaded. Please take a look and...

Hello all, Although this is certainly elementary, I thought I'd share it since it may help someone in a pinch; here is my simple technique to...

Hello all, Although this is certainly elementary, I thought I'd share it since it may help someone in a pinch; here is my simple technique to create a preliminary schematic from a populated 1 or 2 sided pcb: http://ipx1.cybertheque.net/homebrew/pcb-photog/ Regards, Michael Grigoni Cybertheque Museum

Hi, i need to implement a system that will save some log information on a USB flash. I will be using a LPC1758 with the USB port acting as a...

Hi, i need to implement a system that will save some log information on a USB flash. I will be using a LPC1758 with the USB port acting as a HOST only. Looking at the user manual, at the example schematic there is a LM3526-L that is basically a switch with overcurrent protection. As i am not going to connect my system to anything else than a pendrive, should i use the switch? If not, is there any ...

Hi ppl, I need to program sevetal PAL's and GAL's in an educational enviroment. I will be using a hobbyist programmer to do the programming as...

Hi ppl, I need to program sevetal PAL's and GAL's in an educational enviroment. I will be using a hobbyist programmer to do the programming as i do not need any large volumes. What software is available to enter the logic equations and compile to the fuse file? Does any schematic entry software exist which one can enter the schemtic and compule to the fuse map? Any sort of help on PAL...

hi all where can i find a simple programmer schematic for mc68hc11 thanks for help

hi all where can i find a simple programmer schematic for mc68hc11 thanks for help