anyone knows any EDA softwares that converts Verilog coding to Circuit layout(like logic gate layout of a system)?

Try TANNER EDA.

you mean L-edit? isn't that a mask layout creator? and i thought it can only convert SPICE netlist to schematic layout form......

I can't really answer the pcb temp tolerance value but you may get some clues from the PCB making process.

At the nearly end of the pcb making process, solder masking (pcb painting --> normal color: green) is needed. In order to dry up the solder mask, pre-cure and post-cure processes are needed which are about 75C and 150C respectively. Under the post-cure process, the pcb is put into a 150C oven for about 30 minutes.

Then, HAL, ENIG or ENTEK is run. For HAL (Hot Air Levelling), it will deposit the soldering iron on the surface of pcb connectors. This process can be run AT MOST 3 times on 230C for single PCB. Whenever the temperature is over that value or the frequency of doing HAL is over 3, there is a posibility that the solder mask may melt or copper foils may burn.

From the above processes, you may assume that any temp below 150C should be safe for a PCB board and 230C is considered a dangerous level. However, if you can achieve that temp level, you can say goodbye to the electronic components on your pcb already.

p/s: The above assumption can be made as long as the solder mask ink quality can meet the industrial standard.

Nice topic. One more to register.

I graduated from utm.

Registration done

This post has been edited by charge-n-go: Oct 23 2005, 10:24 PM

hi there... i just found out this thread....

igor_is300 graduated last year with BEng Electronics Eng. from Staffordshire University reporting in..

y only got e & e

no mechanical 1

sry 4 d spam... but i m impress with u guys

alrites, thanx for reporting. I got another source of information if I dunno something


oops, computer hardware is more related to e&e ma. Maybe u can ask almostthere to open mecha engineering thread in fast & furious

Erm... I'm a first year student on computer engineering from UTAR.. can add me to the list?

I've got a question lar.. erm.. anyone here knows where to buy electronics parts? Like those for PIC and 80x microcontroller? As well as those logic gates..

This post has been edited by zybler: Oct 25 2005, 09:38 PM

Jalan Pasar?

Where was it? How do I go there? Is that a street name?

It's a strict name at Pudu district. Please don't mess up between Pudu and Puduraya.

Stitchy® w/o stitches

Added you, welcome !
Usually i buy my parts in SS2 bcoz near my house, lazy to go so far

Some said OKR also got.

Stitchy® w/o stitches

Me and my frens used to get parts from Farnell Electronics, around Seksyen 14 if I remember correctly.

Prefer there to Pasar road. Of course Farnell sell it more expensive, but since company paying.....

I am an engineer in an MNC semicon company. my major is in telecommunications though, but i deal with IC design in my company.

p/s Farnell is freaking expensive. The only reason why i go there to buy anything is that it is not sold in Jalan Pasar. It's along Federal highway, and turn out somewhere before midvalley (jalan 222 if i am not mistaken)

I definately prefer Jalan Pasar or SS2, (near 1 road behind Burger Kings they actually have 8051 microcontrollers there...) to Farnell;
Of course you can always request for engineering samples from Maxim, or NS; they will actually mail them to you; just use your lecturer's name if you want a better chance of recieving the samples.

just O/T... why is this thread here? shouldn't it be in education or jobs?

you can ask free sample from microchip for PIC. others logic gates jalan pasar a lot. but in terms of convinients, go for farnell. if you not buying a lot, i think its ok to pay bit more.

hmm, IC design? since your major is in Telecommunications, mind if i ask you this
do you know how to implement a Viterbi Decoder into IC form? i don't want to know how to do it in a detail manner, but probably some concept on wat to do.....

Haha. gimme a while need to look up what in the world is a veterbi decoder....
Okie, it's a transciever with encoder/decoder. Sorry I am not involved with with these types of circuits. And i can't believe that i need to read up on trellis coding to remember how it works. Sigh that's what happens when you don't touch communication for a few years...

anyway I assume you already know the information here... http://www2.ing.puc.cl/~iee3552/TCM.PDF

Based on the block diagram here, This is what i will do, i will implement the decoder, (and control blocks) in verilog/VHDL or systemC (your choice, just so that i can synthesize it and save myself time). You will have to blackbox the demodulator block; (allocate some space for your layout so that the place and route tool won't accidentally route around that area and cause problems with your routing later).
The circuit demodulator block will need to be designed by hand; from the diagram it appears that all the viterbi decoder need is the recieved data. so just send the recieved data; with a clock; and the control block should be sending and recieving control signals to both the demodulator and the decoder.

After you have your demodulator circuit, then just draw the layout and connect it to the verilog synthesized portion.

(verilog for viterbi decoder: http://www-ee.eng.hawaii.edu/~msmith/ASICs...11/CH11.12.htm) I shouldn't be doing this but i wanted to verify whether or not the decoder is really synthesizable

Side note: regarding your question to convert verilog to schematic, most synthesis tools, and formal verification tools should have that capability (some accepts only synthesized verilog so you may need to do just that)

Just curious is this wired or wireless? It's possible to build an antenna on a chip, but i have no idea how it's done.

This post has been edited by martianunlimited: Oct 27 2005, 09:03 PM