hi guys ,
welcome to arm -7TDMI
i shall be posting relevant documents one at a time
to start with let us make a lpc2138 board
1190393307_2984_FT0_lpc2138.zip

Well I think i must start ARM Discussion forum too
what you say?

Edit:
Hey the circuit is not very clear.. you must take a full size print of the circuit when printing pdf.
Check the size of the schematic sheet and edit the print paper size.. so we can get a clear image.

Also it looks like your PC clock is working little ahead of us so.. please update your clock and signature is giving verification error.. It has opened in my PC but maybe for normal user it wont open.

why not??

that is a good idea

now once u have got the board ready download a compiler(gnu open source) from
http://www.siwawi.arubi.uni-kl.de/avr_projects/arm_projects/WinARM-20060606.zip

There is another tool for ARM which i like a lot
its CrossWorks for ARM from Rowley Associates. They provide 30-days evaluation version..
But i think WINARM will solve the purpose

well this is the actual gif

hope it opens up well


[Edited by Ajay]

yeah
i have tried different tools
but winarm is the best
one of the advantage is that you can use the codes directly on linux
and the other is the ease with which you can add rtos code to it

oops the gif is bigger than i thought

thanks for editing ajay

wow.. nice.. I never used an RTOS. I always think why or how to decide when to need an RTOS
when ever i think i might use an RTOS.. i find a better or simple way to do that thing.

I edited your post.. so image comes fine now.. i am not sure.. but resizing is not working hmmm.. have to work on it..

Please try to use www.imageshack.us to upload your images..
Get the direct link from there.. and simply put that image link in [img] tags

hey can you post the availability of the ICs used in the schematic above in our "Component Availability" forum?

Give contact number or shop name etc.. if possible with cost

the only problem is lpc do not come in dip packages
so we have to go for smd soldering of the ic

that is not a problem for me i soldered many ICs SMD. I have a good soldering station too

I tried the NXP website but samples are not available anymore and i don't know where to get ARM from

now installing winArm===>
extract winarm in c drive or copy extracted winarm in c:
right click mycomputer=>properties=>advanced=>environment variables=>Path(doubleclick)
add ;C:\WinARM\bin;C:\WinARM\arm-elf\bin;C:\WinARM\utils\bin;C:\WinARM\pn;
do not forget the semicolons to seperate the directories

it is available aplenty from nxp mumbai
and even in pune,
hope u can come up some time....

hmm.. i cannot lol!

Hey i forgot to tell you the best tool i used!!!!!!
its Cygwin have you heard of it?

its linux simulation tool on windows. So you can program like you do in linux. i actually used it when working on PowerPC. it can be used for ARM too. As you know linux can be used to compile for 16 different kind of targets so.. we can make use of cygwin to directly generate the output file..

are u going to discuss ARM from basics or wat?

of course from basics... we are all going to learn the basic thing we always need is.. Development board, IDE etc.. only after that you can start doing something isn't it?

yes abbas
we shall discuss arm from basic.
but the discussion has not yet started

yeah this is just an initial spark of the discussion and i think everyone want to learn

yes we can use cygwin no doubt...
i have used cygwin in the past..
works fine
but i had problem in the Interrupt sections...
and trust me winarm is almost the same as using cygwin only thing is that here u have a make file instead of a batch file
and i can say repeatedly winArm has been the best for me for over a year now

well ajay then you must trust me and send me a cheque or something i will send u the chip by post
watsay??

well i used makefile in cygwin.. never used a batch.. or anything like that.. I am not sure how you worked on cygwin
i have used MAKEFILE along with the linker script. didn't get any problem though!

well thats great then you will find winarm similar enough to work on..
i dont know (may be i dont want much experimentation )why i am insisting on winarm but that is what it is

well guys,
if you want to work on cygwin download the package from
http://www.gnuarm.com/
they also have precompiled binary for linux and MacOs

hey i have topic opened in component availability can you please see it? eagerly want to know the cost..

i have already posted

please post the PCB if you have

i can make one for rickeys world only if our users use orcad for designing..
sorry iam not much into hardware so this is the only tool i use

hi check the phoro of the actual proccessor board

oww.. its really nice really really nice

i have made a design(for rickeys world) using orcad. i'll post it soon

Thank you Shyam looking forward for it

hi these are the final working ckt u can refer too...
1190482851_2984_FT2416_arm_pcb_schematic.pdf

the schematic is not clear i can't see a thing.. can you put the orcad files i will take the print.. and post it.. and orcad files are better..

hi ajay,
i am not able to attatch the orcad files they are way to big .....
this is last try or i 'll send the files thru broad band
1190559082_2984_FT2416_schematic1___arm.pdf

wooww!! really nice i wish i could get PCB for this lol!
The first one looked really simple.. i think that one was a modular design and i prefer the modular one.... but this one is good too

what to do next ???
now we have got the schematic ....
should we wait for our members to get the board done....
or should we head to the tutorial ??

thanks for the useful infomation given.but sorry to say what the circuit would actually do or what purpose it is survingcan u please rely my question to my email sritam2@gmail.com

The schematic is quite useless without a PCB, considering the processor being SMD, cant even be tested on a bread board. So i would suggest that if any1 of you is really interested in making it, give the schematic to a PCB manufacturer, get a design made, and post it for others.

well making a PCB is not that simple.. you have to take care of many things and i had talk with shyam personally, he told me that he is busy in other company work, but he will surely post it when he get time. Although i really appreciate his contribution and taking time out of his busy schedule to help us all here.

And.. @Shyam, yes we can proceed to the tutorial part, little introduction on the ARM architecture and then as we go on programming we will learn step by step regarding the registers which are there in ARM.
I recommend everyone to download ARM datasheets and instruction set (very much similar to that of AVR, but its much better) and take a look at the instructions. And we can start working on ARM

Don't be scared of ARM, take it as a normal controller

yes ajay that is the best thing about arm.....
a little intro....
u will find arm proccessor in
1) your PC pentium is based on ARM
2) most mobile/gsm modems
3)PDA's
etc....
so you must know that ARM is just a proccessor core....
it is neither a proccessor nor a cotroller.....
it is u can say.... an idea .....

u see.. pentium is an ARM based proccessor
LPC21xx are ARM based controllers....

thus if u have an idea of working on any controller (8051/AVR/PIC etc).. it will do......plus if u have an idea of working on proccessors... (8085/8086/x86)...it will be an added advantage...


but if u are a basic level programmer assume (8051)..
do not worry.....
if u follow my aproach, u'll find ARM easier than 8051
believe me

here are the orcad file it is kinda incomplete ......
hope some body would get the thing done and post it back
1190652172_2984_FT2416_newschematic.zip

now lets get started with the tutorials.....
a little googling can get u the pdf...ebook..
lpc-arm-book_srn.pdf
also look for..
user.manual.lpc2131.lpc2132.lpc2134.lpc2136.lpc2138.pdf
u can get it frm
www.nxp.com

the above two books are more than enough for starters.....

i still use them in almost all my developments......
if u cant find them .... i'll some day post them but they are way to big to be posted....
so better download them urself frm the net....

here are links
book:
www.cecs.csulb.edu/~brewer/347/lpc-ARM-book_srn.pdf
manual:
http://www.standardics.nxp.com/support/documents/microcontrollers/pdf/user.manual.lpc2131.lpc2132.lpc2134.lpc2136.lpc2138.pdf

aha... we are moving to next step then
hey abbas, as you have Proteus so you can use that too for simulation purpose just wanted to remind you of it

ARM has an embedded ICE (In-curcuit Emulator). Its a real time debugger. Most of the ARM compilers make use of it, so there's no need for any seperate simulator as such.
I have worked a lot on ARM7... the same Philips LPC series. I can contribute anything if required.

sure... we want everyone's contribution.

The reason i mentioned Proteus is.. that people who don't think that they can buy/make a development board, if they have Proteus VSM then they can simulate ARM on it, just to get them started.

And almost all ARMs are equipped with JTAG and so boundary scan can be done and you can get all the internal information of registers through JTAG. Which can help them to debug and test your codes.

i never had time to test my board using JTAG.....
but
@abhishek_h if u could provide us the resources to build our own jtag debugger it would be of gr8 help
as for as the software is considered we can use OCD debugger which u can find in the WinArm package

but i think before we get the board ready , we can use Keil Uvisioin3 for simulating peripherals of the chip...
download demo frm ..
https://www.keil.com/arm/demo/eval/arm.htm

i tried JTAG on PowerPC but not on ARM coz never worked personally on ARM. I used special software that time.. its called single step for PowerPC.

Shyam, after we finish our discussion on ARM board, we will create a new topic for ARM instruction set discussion... if you have more idea please share..

as i said there are open source software to go by ARM
ex. OCD debugger....
but i feel for starters we should use keil demo version
there we can also simulate the peipherals.......
then while working directly on board we will use
WinArm or cygwin Arm-elf as decided before

as per ideas once we r thru the basic ARM programmes.....
we should try RTOS on to it......
they are easy to implement and interesting....
mean time it would be gr8 if someone starts a new category on
OS fundamentals...
watsay??

hmm... sure i can start.. but people are not too much into OS right now.. and no1 ask about it.. we can start if we first try to implement freeRTOS on 8051.. make a small application running on it... then we can get people interest in this field.. so we can keep ARM aside and try to make 8051 RTOS application.. just any simple application..
what you say?