The most simple board

Go To Last Post
5 posts / 0 new
Author
Message
#1
  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

I have a development board for my AT90S8535 (SIMM100 and motherboard) and a programmer. Do I really need one more development board if I plan to buy another microchip and put it in a device for sale. I'm planning to build a fancontrol for PC's (Or any other home computer) and I really think it's a waste of money to put a simmstick (wich costs about 40 bucks) in it. Isn't it possible to just build a board wich supplies power and connects the output ports, and not include all the RS-232 and reset circuits.

admin's test signature
 

  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

The SimmStick was designed as a modular development platform, and can be used in a final product, or treated simply as a modular platform to get to where you want to go quickly.

By the sound of it, you need to design a PCB to suit your application. Design with SimmStick, then go to market with your own final design.

see:
http://www.dontronics.com/ssinfo...
for more info on SimmStick.

admin's test signature
 

  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

Ok, so can I skip all the reset circuit, rs-232 and all that stuff and just connect the ports and the powersupply.
Becuase it's a major price difference, the AVR alone costs about $10

admin's test signature
 

  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

I think this is quite ok. You could search the web for some simple examples of circuits without any kind of extra doodles.

You might want to add a reset button, or use AVR with watchdog timer, and reset by software once in a while just to make sure everything is ok.

admin's test signature
 

  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

Ok, thankss for the all the answears

admin's test signature