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DS89C4x0 Serial Programmer Circuit Needed

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HelderS

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ds89c4x0

Hi!

I've asked for some samples from Maxim, a DS89C420 and a DS89C440. I've tried a circuit to program the uC, but i've had some problems, I stablish the conection between the PC and the circuit, but I couldn't see any program running in it, although the code had been succefully loaded.

So, I would like to know if someone could get me a circuit wich I could Serial Program a DS89C4X0, please??

Thanks for your help, if possible... ;-)
 

ds89c4x0

Hello,

Try these links:




Try the 'Search' function on the board :)

Cheers,
FoxyRick.
 

    H

    HelderS

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ds89c4x0 data sheet

If the code had been succesfully loaded therefore all you have to do is to wire the 8051 into stand alone mode.
 

ds89c420 programmer via serial

Sorry, What do you mean about stand alone mode?

After I program the uC I put in Run Mode, is it enough or do I have to make any further stuff?

Sorry about the mess...

Thanks For your help... ;-)

Helder Silva

Added after 5 minutes:

The circuit I used is in this link, I think it maybe be useful for other people.
The page is in portuguese, but you can see the circuit's. I think it is correct because the person who did those projects tells that they're working.

Can someone take a look at them, and tell me something...
If it works, maybe very very useful, and may worth the translation to the english language...


Thanks a lot

Helder Silva
 

ds89c4x0 microcontroller

Re-check the datasheet of DS89C420 on how to put it on run mode. Read also the pin descriptions.
 

    H

    HelderS

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ds89c420 programmer circuit

Sorry, i forgot to give the link:

**broken link removed**
 

ds89c420 progammer circuit

Check the link given by FoxyRick, it has the PCB layout of the interface board I made for the DS89C420.
 

    H

    HelderS

    Points: 2
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Hello, Glenjoy!

I still can not access your site.
Seems to be a broken link.

**broken link removed**

Can you help?

Thanks

Helder
 

HelderS said:
Hello, Glenjoy!

I still can not access your site.
Seems to be a broken link.

h**p://www32.brinkster.com/semiconductor/ds89c420.html

Can you help?

Thanks

Helder
Click to expand...

I have not updated the site yet for the DS89C420 programmer, don't worry I will be updating it soon.

Thanks.
 

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