PDA

View Full Version : What the alternatives for this ics



bilalinamdar
05-04-2009, 03:01 PM
Atmel AT90S2323-10 it is like 8 pin
Atmel AT90S2343-10


also one offered me 2313 (i think it is tiny)
can u tell me if the above 2323 will be compatible with this?

I would like to know is there any alternative for the ic ?
Which is used here ? (i want to do this project)
http://www.ocinside.de/go_e.html?/html/modding/usb_ir_receiver/solder_usb_ir_receiver.html

Actually i am not getting the perticular ic that is AT90S2323-10
They say they have 2313 but it has like 20 pin on the ic whereas ur AT90S2323 have only 8 pin kindly suggest me

Normally u can see this pages and please suggest me one which will work and will it give problem with the flashing ?
(i have little knowledge of electronics)


http://onlinetps.com/ShowCategory.php?CategoryID=2
http://robokits.co.in/shop/index.php?main_page=index&cPath=19_20

Please see for ur self and it is micro controller not ic ? is that correct...
Please help because i want to do it myself i have done xbox eeprom flashing before..

( I belong to Pune india maharashtra)

suhasm
05-04-2009, 03:22 PM
both the uC's - at90s2323 and at90s2343 are now mature products. You cannot replace them with attiny2313 , unless you are willing to recode the project again. You can replace them with attiny11 , attiny12 or attiny22.
All the 3 ics are pin compatible with both 2323 and 2343.

You may have to make some minor changes in the code though.

bilalinamdar
05-04-2009, 05:41 PM
Will u help me with that coding stuff i get that chip...

suhasm
05-04-2009, 07:17 PM
i guess we could do that.

Which programmer are using to program the chips?
But you should first write the code the way you want and then ask us when you have problems. You cant expect us to do the whole thing for you...

BTW , what application are you using the chip for? Whats your whole project about? And why are you so adamant about using those chips only?

elecrom
05-07-2009, 11:49 AM
ATTiny2313 will be best and closest match. As per my knowledge it is available Indian electronics retail markets(Lamington, Delhi, Bangalore,etc)

You can code your projects in C. You can use CodeVisionAVR compiler. As per my experience, it is most simple yet powerful compiler for beginners as well as for advanced users. Once you write your code in C, it becomes uC independent. Only thing you have to make sure that peripheral modules available on both uCs are same (like number of timers, number of ports, number of interrupts, etc) and if they are not same, some small little changes with respect to those modules will be required in the code.

suhasm
05-07-2009, 12:51 PM
ATTiny2313 will be best and closest match.

I beg to differ. The uC's that the OP has mentioned are all 8 pinned. Tiny2313 has 20 pins. I dont know how well that will fit into his project. And becoz of the pin discrepancy , the OP will probably have to recode a large part of his project again. I think probably there are changes even in the registers and their configuration. Tiny11,12,22 are all officially compatible with 2323 and 2343 , so its possible to just use the original source code and program it like its a 2323/2343.

both tiny11 and 12 are available here in Bangalore. It should be available in pune too.

bilalinamdar
05-08-2009, 06:58 PM
i want to try this project and i guess i can get the ATTINY FROM ONLINE

Please see the project page and please do guide me....

http://jumptuck.wordpress.com/2008/10/26/usb-ir-receiver/

Also i have completed this project
http://translate.google.com/translate?hl=en&sl=de&tl=en&u=http://www.ocinside.de/html/ir_receiver/ir_receiver_d.html

but the problem of that Serial Ir receiver project is that it some time do not respond on the scale of 1-10 i will rate the Not responding at 7 that is a huge number...
So can anyone help me to improve that ? or shall i proceed witht he usb-ir-receiver..... WILL I GET THE TSOP WHICH IS MENTIONED IN USB receiver?


Also which one will be better and easy (+ easy to find parts in india)
http://hackaday.com/2008/10/30/how-to-usb-remote-control-receiver/
or
http://jumptuck.wordpress.com/2008/10/26/usb-ir-receiver/

suhasm
05-10-2009, 10:40 AM
The 2nd link (http://jumptuck.wordpress.com/2008/10/26/usb-ir-receiver/) is much easier.

You will get all those parts in india .
It is very easy and cheap to program the attiny2313 also.
You can make your own cable to program at a very low cost.
The website has provided the PCB layout also , so it will be easier for you to make it.

My opinion is to go with the 2nd one.

bilalinamdar
05-11-2009, 02:45 PM
i am working on it and i completed the circuit on the breadboard
But i don't know how to programme the ic.. u mentioned that you can build ur own cable can u shade some light on that ?

suhasm
05-11-2009, 03:19 PM
You can make a programmer using only a parallel port connector :
http://www.instructables.com/id/Ghetto-Programming:-Getting-started-with-AVR-micro/?ALLSTEPS

Check that link , it is excellent.
You will have to use WinAvr to program the uC.
if you dont understand , then google for "parallel port avr programmer" or "dapa avr programmer".

If you still dont understand , then ask. I will post some pictures of my homemade programmer. Then you should understand how to make it.

bilalinamdar
05-12-2009, 11:49 AM
Hey thanks for the reply i will work on it and will post any update....
Thanks yaar i really appreciate your support..

bilalinamdar
05-13-2009, 03:28 AM
Okay build the Parallel port flasher..
I tested the LED DEMO and it is working fien..

But now what should i write to the ic and how ?
The file is in .hex
according to
http://jumptuck.wordpress.com/2008/10/26/usb-ir-receiver/
[quote]"Firmware: I used the main.hex file in the “ir” folder of Dick Streefland’s usbtiny-1.4 package. http://www.xs4all.nl/~dicks/avr/usbtiny/"[/qoute]

Well everything is ready i just want to write the IC
:)
Waiting for ur reply

suhasm
05-13-2009, 09:08 AM
hmm...this looks a bit confusing...
I have always used WinAVR to directly program the uC through programmers notepad. So , i dont know how to burn a standalone HEX file using a parallel programmer.

I tried using PonyProg , but it refuses to recognize my tiny2313.
I believe you have to use the command line interface of avrdude to program the HEX file..
I will just find out and let you know in a day.

I think senior members like debu or avinash gupta would be appropriate people to contact for advice. They will surely be knowing abt this.

elecrom
05-13-2009, 12:20 PM
Hope this helps :

I had put post regarding burning .hex file using pony prog and parallel port programmer on my blog. Click Here (http://elecrom.wordpress.com/2007/10/15/make-your-own-ultra-simple-universal-avr-programmer/)

bilalinamdar
05-13-2009, 02:53 PM
elecrom

I will try this programmer today itself and will report on it...

btw Thx for the reply...

do keep in touch

suhasm
05-13-2009, 03:48 PM
@elecrom , do you have any idea why pony prog couldnt program my tiny2313?

I am using the same parallel port cable that is demonstrated in the ghetto avr programming instructable by real elliot.
I believe that is a DAPA cable.

The connectors on your cable look different.
Is that why it is not working?

Is there any way to make Ponyprog work with my DAPA cable?

bilalinamdar
05-14-2009, 12:27 AM
@elecrom
Hey that is a great programmer

I tested the LED_Demo.hex on it and it worked perfectly fien...

Well i am so glad that i made a programmer my self.. wow DIY is like drug...do it one time you will do it again and again...


1) I don't know why u applied a 9v battery. Because the LPT1 is already provide enough power to the ic for flashing..
Please explain (i am still using 9v dont want to take risk...)
2) Also i have a spare ATTINY2313 can u tell me some useful DIY where i can use it ? ( i have other spares too will bring new if it requires) (i also have computers spares)
3) How to turn on, off or control the Light, Fan or a power socket ? via any remote (by setting it) can u provide a guide for that ? i don't know what it is called that's why i can't search it over the net...

Thanx for you help !!!

Will update about the USB IR project.

bilalinamdar
05-15-2009, 05:21 AM
Having some problem with the USB IR
yesterday i build the usb ir
but my problem is whenever i connect the usb into the pc it says

Power Surge On Hub Port
And doesn't do anything...
Will i have to reverse the USB port ?
http://jumptuck.wordpress.com/2008/10/26/usb-ir-receiver/
i used a USB B female socket ( i am not sure what it is called)


http://img34.imageshack.us/img34/5707/usb.gif
in the guide the mod used USB 649-61729-0010BLF

ALSO i used tsop1738 in place of TSOP4838

kindly help waiting for reply

suhasm
05-18-2009, 01:38 PM
Power Surge On Hub Port

That indicates that your device is drawing more power from the USB port than it should.

Are you sure that all your connections are correct?
Measure the current that you are drawing with an ammeter. Try to keep the current below 100ma.


ALSO i used tsop1738 in place of TSOP4838
That is not a problem at all.
Both the sensors are compatible.

I fear that you might have accidentally reverse connected the usb connector. Check that. If you have reversed it , then there is a large change that u have damaged that particular USB port.

bilalinamdar
05-19-2009, 01:56 AM
http://elecrom.wordpress.com/2007/10/15/make-your-own-ultra-simple-universal-avr-programmer/

I tried the above universal programmer
Worked okay on the first day but after that i don't know what happened it doesn't seems to work i mean
When i open pony programmer and do Interface setup it started showing
PARALLEL
AVR ISP I/O
probe
TEST FAILED


which was not the case before (i mean the day it worked...)
I though something gone bad so i changed evry resistor, Crystal, capacitor, voltage regulater, parallel port with a new fresh one...
But still failed.. i tried, tried and tried and failed miserably
So than i decided to move on

than i tried this programmer
http://metku.net/index.html?path=articles/microcontroller-part-1/index_eng2

Simple parallel port programming cable
* 1x 25-pin male D-sub connector (for parallel port)
* 4x 330 ohm resistor
* Enough wire and a connector to match the one on the board

And believe me it was the easiest programmer i ever build (hopefully this is my third programmer)

worked like charm....

Now will move on to the USB ir again will check it...
Will report...

bilalinamdar
05-19-2009, 02:49 AM
@suhasm

well i will try to reduce the current but first i need some help here

after many failed attempt with the previous USB ir project i decided to do this IGORPLUG USB AVR project..

http://www.modding.kh.ua/a/IgorPlug-USB_%28AVR%29_eng_files/2313usb.gif



Q: After device plugin into USB port is the device not recognized - recognized only as "Unknown USB device".
A1: Problem of bad device detection is in hardware. In schematic you must add series resistors into USB data lines - see schematic on my website. You can increase the resistors from 68R up to 330R. And additionally you can connect Zener diodes (3.6V) to USB D+ and D- data lines. Problem appears mainly on notebooks and new computers. Usually is there no problem when you plug device into external USB hub. Problem is caused by high voltage coming from microcontroller to USB lines - allowed max. 3.6V (input current into computer USB port).
A2: If you are using ATtiny2313 you must set fuses during programming: disable division the external clock by 4 and enable high speed XTALL.
Note: No driver update helps ;-) .


I am not a electronics guy... Never touched anything... but now i am surrounded with resistors, ics, capacitors, diodes...wow

so i need a newbie help here
In the answer can u actually add that thing in the schematic ?
I mean can u draw it ? with plugging in the diodes ? where the diodes should go which directions etc etc i will understand if u please try to do a schematic for me...
also why the Image shows
1) 7 PIN AS D0 ? AND SAME FOR 9, 11, 15 i.e d1, d2,d3 etc is there no wire attached ? will i have to connect something there ?
2) Pin 2-3 of the ic is showing RXD, TXD should i do something with it ? or is it just showing information ? will i have to connect something there ?
3) Is Pin 4 and 5 are conencted to the xt1 12mhz crystal and that is it ? or there is more connection ?
4) IS the R3 & R4 ARE CONNECTED ? or they are seprate lines ?
5) is pin 10 (gnd) and C3 (4u7) - POINT and C2 (10u) - point and c1 (100n) and usb pin 4 are connected(forming complete gnd)?

This are very basic and noob question but after a lot of struggle with my previous project i am writing this...


Now regarding the quoted question answer


You can increase the resistors from 68R up to 330R. And additionally you can connect Zener diodes (3.6V) to USB D+ and D- data lines.
6) Now what exactly i have to do is put diode after 68R (R3) and before usb data+ but in which direction ? same question for R4


A2: If you are using ATtiny2313 you must set fuses during programming: disable division the external clock by 4 and enable high speed XTALL.
7) Now exactly how do i do this ?
-a) Disable division the external clock by 4
-b) Enable high speed XTALL

i see in the Ponyprog is this screen
http://img155.imageshack.us/img155/3237/fusebits.jpg


I am sorry to ask this detailed question but for the complete resolution of the problem i have to do this...
waiting eagerly for the reply

edited : i think this might help http://www.engbedded.com/fusecalc/ it is the fuse calc.. But i don't know how to use it show please guide...

suhasm
05-19-2009, 11:51 AM
I mean can u draw it ? with plugging in the diodes ? where the diodes should go which directions etc etc i will understand if u please try to do a schematic for me...

Take a look a this diagram and connect the diodes as shown.
http://www.harbaum.org/till/i2c_tiny_usb/schematic.gif

The USB port accepts signals of max voltage 3.6V. But , unfortunately , the uC is powered by 5V. So to reduce it, you need to connect a reverse connected zener diode from the data lines to GND. The 3.6V voltage drop is seen by the USB port instead of the 5V coming from the uC.
So , the USB port will get the 3.6V Logic level that it expects.

I recommend changing the resistors from 68Ω to something higher as the diode is a virtual short. Change it to around 220 ohms and see. If it doesnt work , then try making the resistor smaller and smaller until it works.

Better than all this , just power up your entire circuit with 3.6V , that should remove the need for the diodes. You can use a LM317 voltage regulator. Search on google for it.

As
1) 7 PIN AS D0 ? AND SAME FOR 9, 11, 15 i.e d1, d2,d3 etc is there no wire attached ? will i have to connect something there ?

According to what i see on its website , this project has multiple functions.Apart from the infrared reception , one of them is to control the 8 Data lines (D0-D7) through the computer. You can set them as input or output or write some value to them etc. All this controlling is done through a software that is included on their website.


2) Pin 2-3 of the ic is showing RXD, TXD should i do something with it ? or is it just showing information ? will i have to connect something there ?

The RXD (receiver) and TXD (transmitter) are meant for the RS232 serial port. The serial port is the small 8 pinned port on the back of your PC. The IGOR PLUS software has the capability to send and receive data through this port also. If you wish to use it , then you have to connect the TXD and RXD wires to the appropriate pins of the serial port.
Do a google search for "AVR USART tutorial".

If you dont want to complicate things and want to leave out that feature , then just leave the TXD pin unconnected , and connect a (important) 2.2K resistor from the RXD pin to GND. The 2.2K resistor will pull down the RX voltage to GND and will prevent it from catching false signals.



3) Is Pin 4 and 5 are conencted to the xt1 12mhz crystal and that is it ? or there is more connection ?

Actually speaking , two capacitors have to be connected to a crystal to stabilize it. However , apparently , the AVR uCs apparently have inbuilt capacitors internally , so this is not required. I have been personally been using Atmega8s with 16mhz crystal and no capacitors from a long time.
If it does not work , then you could try putting capacitors. The diagram for the capacitor connection is in the tiny2313 data sheet.


4) IS the R3 & R4 ARE CONNECTED ? or they are seprate lines

They are separate. They are not connected in any way.


5) is pin 10 (gnd) and C3 (4u7) - POINT and C2 (10u) - point and c1 (100n) and usb pin 4 are connected(forming complete gnd)?

Yes. They are all connected.



7) Now exactly how do i do this ?
-a) Disable division the external clock by 4
-b) Enable high speed XTALL

You will have change the CKSEL bits to change the clock source and the CKDIV8 bit to disable division by 8.

I am not sure about the fuse settings as i am not proficient in this. But anyway , this might work :
Uncheck all the CKSEL bits and the CKDIV bit also.

Be careful with this as the wrong settings may brick your chip.
Please check with some senior members like debu , elecrom or avinash before trying to modify fuse settings.

bilalinamdar
05-19-2009, 08:41 PM
Completed the igorplug circuit attached the but
I m stuck with the Fusebit setting

Source from http://www.xs4all.nl/~dicks/avr/usbtiny/

The AVR must be clocked with an external 12 MHz crystal. For an ATtiny2313, this means that the low fuse byte must be reprogrammed, for instance to 0xef. I also recommend to enable the BOD circuit, when available. For the ATtiny2313, this means programming the high fuse byte to 0xdb (BOD level is 2.7V).

Does this think match with this


Q: After device plugin into USB port is the device not recognized - recognized only as "Unknown USB device".
A1: Problem of bad device detection is in hardware. In schematic you must add series resistors into USB data lines - see schematic on my website. You can increase the resistors from 68R up to 330R. And additionally you can connect Zener diodes (3.6V) to USB D+ and D- data lines. Problem appears mainly on notebooks and new computers. Usually is there no problem when you plug device into external USB hub. Problem is caused by high voltage coming from microcontroller to USB lines - allowed max. 3.6V (input current into computer USB port).
A2: If you are using ATtiny2313 you must set fuses during programming: disable division the external clock by 4 and enable high speed XTALL.
Note: No driver update helps Wink .

???
what they are actually explaining...
This is so confusing
Please help me on this...

bilalinamdar
05-19-2009, 08:52 PM
I am not sure about the fuse settings as i am not proficient in this. But anyway , this might work :
Uncheck all the CKSEL bits and the CKDIV bit also.


tried this and the chip is not responding now
Ponyprog error

Device Missing or Unknown Device (-24)

suhasm
05-19-2009, 09:44 PM
Be careful with this as the wrong settings may brick your chip.
Well , i did warn you. You can now get your chip working again if the fuse bits are wrong only by using one of the high voltage programming modes.

Still , its pretty strange. I also gave you the same parameters of 0xEF. It should work.
What exactly did you do? You had to just uncheck the CKSEL bits and the CKDIV8 bit. Did you do anything else apart from this?
Try loading a sample program into it through WinAVR to see if it works.

Where have all the AVR experts gone?

bilalinamdar
05-20-2009, 01:08 AM
okay here i found something

i have brought one more ic attiny2313

http://209.85.153.132/translate_c?hl=en&sl=nl&u=http://gathering.tweakers.net/forum/list_messages/1059735/9&prev=/search%3Fq%3Dfuse%2Bbit%2Bigorplug%2Benable%2Bhigh %2Bspeed%2BXTALL%26hl%3Den%26client%3Dfirefox-a%26rls%3Dorg.mozilla:en-US:official%26hs%3DIvl%26sa%3DG&rurl=translate.google.co.in&usg=ALkJrhhySls8sOsGlqq7DNFMhP1qWkpHlQ
it is translated


http://img139.imageshack.us/img139/120/translatedsolutionfuseb.png

Now please guide me how to do this with pony programmer or how to make a sp12 cable which he mentioned.. i see a lot of cables there...

SP12-wF11101111-wH11011011-wpf usb90s2313.hex

can u translate that ? execution code -wF11101111-wH11011011[/url]

suhasm
05-21-2009, 02:00 PM
And BTW , you said that you were getting a device not responding error.
Had you inserted a 12Mhz crystal between the Xtal pins of the tiny2313?
If you had not inserted it , then the error is becoz you have not put the crystal- Not because of wrong fuse settings.

Try putting a 12mhz crystal along with stabilizing capacitors and try again.

If you had put the crystal, and it didnt work still :



Now please guide me how to do this with pony programmer or how to make a sp12 cable which he mentioned.. i see a lot of cables there...

Programmer does not matter. The only thing is that it should support the tiny2313.
Continue using whichever programmer you are currently using. It will work just fine.

The website that you have provided has also given given the same fuse settings that i gave earlier.
It has only added one extra thing : the brown out detector (which is optional).




SP12-wF11101111-wH11011011-wpf usb90s2313.hex

can u translate that ? execution code -wF11101111-wH11011011

That is the command that you need to give in cmd prompt in order to write the fuse settings using the Sp12 programmer. It is for winavr i believe.

You can use pony prog instead, it doesnt matter which programmer you use.

Take a look at this :
http://www.engbedded.com/fusecalc/

Its a fuse calc. Select tiny2313 in the drop down box that appears in the website. In the current settings panel at the bottom , enter the fuse settings that you found on that website in hexadecimal.
ie.
11101111 = 0xEF (low bits)
11011011 = 0xDB (high bits)

And click on apply values. You will find the manual fuse bits config panel updated with the correct values. Just tick the same boxes in pony prog also and program it and try again.

bilalinamdar
05-21-2009, 09:19 PM
SP12 programmer cable
http://embsys.technikum-wien.at/staff/veigl/MDBA/Documentation/SP12_cable.jpg

I tried to build this cable and was successful



C:\sp\sp>sp12 -r
SP12 version 2.1.1 performing init...
Path to _sp12rc and _sp12dev: Local directory
Running in SP12 cable/dongle compatible mode.
Enabling AVR serial reading/programming...
The device code bytes 0,1,2: 0x1e, 0x91, 0xa were read
from parallel port 0x378 and indicate the following:
You have connected an ATtiny2313
The device was made by Atmel

Writing 0000 (0, B00000000) to the parallel port data bits.
Sp12 was active for 0.31 seconds.


So than i tried to write the hex to the chip
with this caommand

C:\sp\sp>SP12 -wF11101111 -wH11011011 -wpf usb90s2313.hex

And than




C:\sp\sp>SP12 -wF11101111 -wH11011011 -wpf usb90s2313.hex
SP12 version 2.1.1 performing init...
Path to _sp12rc and _sp12dev: Local directory
Running in SP12 cable/dongle compatible mode.
Enabling AVR serial reading/programming...
The device code bytes 0,1,2: 0x1e, 0x91, 0xa were read
from parallel port 0x378 and indicate the following:
You have connected an ATtiny2313
The device was made by Atmel

11101111 are the fuse bits written into an ATtiny2313
0xxxxxxx - CKDIV8 - divide clock by 8 (page 22)
x0xxxxxx - CKOUT output clock on pin D2
xxSUxxxx - start-up time (datasheet page 24)
xxxxCKSE - CKSEL (datasheet page 22-24)

For the ATtiny2313; Wrong number of high fuse bits.
Performing chip erase...
Writing content of usb90s2313.hex into program area.
usb90s2313.hex does not exist, wrong format,
address > limit, or HEX file checksum failure.
Writing 0000 (0, B00000000) to the parallel port data bits.
Sp12 was active for 0.83 seconds.




Actually the file name was usb90s23x3.hex and i put usb90s2313.hex
and now the second IC is not working




C:\sp\sp>sp12 -r
SP12 version 2.1.1 performing init...
Path to _sp12rc and _sp12dev: Local directory
Running in SP12 cable/dongle compatible mode.
Enabling AVR serial reading/programming...
Sp12 tried 33 times to find a working device.
No device connected.
The device code bytes 0,1,2: 0xff, 0xff, 0xff were read
from parallel port 0x378 and indicate the following:
You have connected an unknown device, or no device
The device was made by an unknown manufacturer

Nothing to do for sp12.
Writing 0000 (0, B00000000) to the parallel port data bits.
Sp12 was active for 0.67 seconds.

it is like 2 ICs wasted and still no help

What i wonder now is

For the ATtiny2313; Wrong number of high fuse bits.

suhasm
05-21-2009, 09:45 PM
I think a better place for you to ask this would be in the AVR forums at
www.avrfreaks.com

They have more knowledgeable ppl there and will definitely give an answer to your question.

suhasm
05-21-2009, 09:50 PM
Take a look at this :
http://www.xs4all.nl/~sbolt/e-sp12FAQ_content.html

It might help.
The answer to your error is there.

elecrom
05-22-2009, 12:16 AM
Hi Guys,

Sorry for not following the post and causing all trouble.I found combination of USBasp and AVRdude is much better than pony prog and parallel cable.

@Bilmindar
If your microcontroller is not responding after setting the fuse bits, it indicated that something has gone wrong. I saw many student which confuse between fuse programmed (means 0) and unprogrammed (means 1) and end up screwing uC. Well even though uC gets screwed because of this, it is still possible to recover that uC by providing it external clock. I will write detailed post on whole fuse bits business and how to recover apparently dead uC.

Kindly let me know besides Tiny2313, which other devices you are interested in (to change fuse bits? ) ?

NOTE: There is no fuse bit setting for tiny2313 which divides the clock by 4. Available setting is divide by 8.

@Susham
Parallel port programmer doesn't work for some microcontrollers:
Thats because Pony Prog generated SCK signal has frequency higher than default microcontroller fuse bits can handle. This frequency is not controllable in pony prog.

bilalinamdar
05-23-2009, 12:52 AM
no solution still...

elecrom
05-23-2009, 07:31 AM
Please wait

bilalinamdar
05-29-2009, 03:40 PM
@electrom
I didn't noticed your second last post...
great at least u responded...

I failed two Attiny IC
after that i again build a new programmer this time it is
http://wearcam.org/ece385/avr/avr_programmer_from_xs4all_sbolt_site.png

Same from the xs4all

It worked and i recovered one IC of attiny2313

I also had a ATMEGA8 which was new and worked well with this programmer...
Now i have only one dead Attiny2313
I will resume the project today (was paused because of HTPC project which is complete now)....

elecrom
05-29-2009, 09:15 PM
Difference between programmer shown on my blog page and above one is that 100E resistor and the capacitor. Can you try adding that to original one and tell me whether it works ?

kikip
07-01-2009, 06:41 PM
BANNED