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Author Topic: ATmega1284P: End to End using 1.0 IDE  (Read 65712 times)
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Peoples Republic of Cantabrigia
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Adi, nice looking board. The big solid ground pours and the signal, etc. lines show great attention to detail to keep things looking that 'simple'. I have spent many long hours optimizing my layouts too in order to minimize signal-line vias, etc. I am also very happy with the quality and cost of iteadstudio, now if only their PCB factories weren't on vacation until February!

CrossRoads, your solution to the much-debated question of whether to or not to include a USB interface is simply brilliant, especially since those of use who have an FTDI cable can use it too.
« Last Edit: January 19, 2012, 06:28:16 am by Constantin » Logged

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Thanks - just need a little time to get the ICSP connector in the right place.
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Designing & building electrical circuits for over 25 years. Check out the ATMega1284P based Bobuino and other '328P & '1284P creations & offerings at  www.crossroadsfencing.com/BobuinoRev17.
Arduino for Teens available at Amazon.com.

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Woot!  I now have a 1284 running in my old sanguino board...
That "variants" install works pretty well; quite painless!
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Thanks - just need a little time to get the ICSP connector in the right place.
Hi Bob, I was wondering where this project stands? 
I am still interested in the boards.
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I have a few too many plates in the air!  I just need to confirm I have the ICSP header in the right place, and I can order boards. Hang with me Joe, am trying to finish up a quote right for 50 boards to go to Singapore, then I can finish up the Deuemilanove stye 1284 board.
Such a small thing to finish up too.
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Designing & building electrical circuits for over 25 years. Check out the ATMega1284P based Bobuino and other '328P & '1284P creations & offerings at  www.crossroadsfencing.com/BobuinoRev17.
Arduino for Teens available at Amazon.com.

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Ok, I am placing an order for thru hole Duemilanove style ATMega324/644/1284 based PCBs.
Any takers besides JoeO?
I'll have them to mail out in about 3 weeks when they come in from Iteadstudios.

Board  will have all the features of the uC you populate it with.  I prefer the ATMega1284P, with 4K EEPROM, 16K SRAM, 128K Flash memory, dual hardware serial ports, I2C, SPI, etc.

All the boards will  have:
> 32 IO pins,
> new & old shield compatibility with a couple of jumpers to allow A4/A4 or SDA/SCL to connect at the D18/D19 pins,
> SPI in the 'normal' place.
> SDA/SCL are in place for the new shield layout,
> latest style expanded power header,
> expanded Analog port header with 2 more pins and Port C, which is also the JTAG pins, brought out to a header the I2C pins connected there as well.
> ICSP header for downloading a bootloader.
> Jumper field to select  reverse polarity protected 5V regulator, or polyfuse protected USB power, or  neither if 5V power is brought in from the power header.
> Seperate 3.3V regulated power.
> Jumper field to disconnect DTR from the reset line.

And the neat part - a  header to connect a USB/Serial adapter such as an FTDI Basic, or you can install this new module I found at Mouser that is FTDI based USB/Serial adapter also:
http://www.mouser.com/ProductDetail/mikroElektronika/MIKROE-483/?qs=sGAEpiMZZMuNcqZxhMNT3znYT0k8AsjH
Mouser also has the best prices on '1284 chips, $5.82 each, $5.64 each for 10.
http://www.mouser.com/ProductDetail/Atmel/ATMEGA1284P-PU/?qs=sGAEpiMZZMtVoztFdqDXO3QpeG9FlGm9

All other parts are common headers, 16 MHz xtal, 22 pf caps, 3mm LEDs, common resistors, tactile switch.
Board should assemble very easily and program nicely with Optiload and maniacbug's 1.0 files for 1284.

Cost: $4.50 to US locations plus $3.50 each additional board to US locations.
$5.50 plus $3.50 each additional board to overseas locations.
This is pretty much the cost of the boards plus shipping, and the good graces of my wife to package, label, and drop off at the post office for me.

JoeO, I'll give you a seperate price for the 10 boards since we should just be able to re-label the package from China & send out.

I'm placing the order after work tomorrow, gonna order at least 20, will make it 30 or 40 if there is interest.
I'll also post a BOM also with suggested part numbers while we wait for cards.


* Thruhole_layout_final.png (25.98 KB, 991x522 - viewed 27 times.)

* ATMega1284_thruhole_sch.png (75.29 KB, 2333x1176 - viewed 25 times.)
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Designing & building electrical circuits for over 25 years. Check out the ATMega1284P based Bobuino and other '328P & '1284P creations & offerings at  www.crossroadsfencing.com/BobuinoRev17.
Arduino for Teens available at Amazon.com.

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Thanks Bob, I appreciate it.
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I'll take 2. They will probably just sit here for a while but when they come in handy, well you want them around!
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Same here I will take 2.  We'll see if I can handle the smd parts.
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Count me in for two.

Thanks;

Lefty

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I would like three, please!
And ... thank you!
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Wow - 19 already! Gonna have to order 30!
Glad to see there is plenty of interest.
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Designing & building electrical circuits for over 25 years. Check out the ATMega1284P based Bobuino and other '328P & '1284P creations & offerings at  www.crossroadsfencing.com/BobuinoRev17.
Arduino for Teens available at Amazon.com.

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Wow - 19 already! Gonna have to order 30!
Glad to see there is plenty of interest.

Yep the market speaks, through-hole and DIP still rocks and rolls!

Just noticed on the 1284 datasheet that the serial 1 tx & rec pins share the int0 and int1, so can't use user interrupts and second serial port at the same time. Too bad, but still looking forward to this design. It most
likely will be the most powerful DIP based arduino design now and forever. Long live the DIP.
« Last Edit: February 10, 2012, 05:38:45 pm by retrolefty » Logged

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Wow - 19 already! Gonna have to order 30!
Glad to see there is plenty of interest.

I'll take Qty: 5
Quebec, Canada. You have my infos already. Thanks.
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Just noticed on the 1284 datasheet that the serial 1 tx & rec pins share the int0 and int1, so can't use user interrupts and second serial port at the same time.

There are THREE interrupts!  So you can still use one (maybe two, not looking at the sheet right now).
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