Do you also agree that you misunderstood me?
I'll agree that something is getting lost somewhere - what exactly have I missed ??
bill.
Why? However, if you are suggesting using the above components (that's a pretty authoratative statement), maybe you know something we don't, so share with us...One should use at least mosfets, opto-couplers or transistors to electrically protect the circuit from the programming circuit.
In the meantime, do a forum search... it's all been discussed before... and in some threads you'll even find some schematics... eg Post #14 on this thread...
http://www.picbasic.co.uk/forum/showthread.php?t=516
People give you suggestions here, things they use, things that work for them. You can do what works for them, you can take the idea and create something of your own, or you are free to do something completely different. But hey, let's not post a detailed specification and shoot people down when they don't meet it exactly!
@bcd and @Melanie: My idea is to connect the bases of a series of transistors (or gates of a series of mosfets for that matter) via resistors to vdd of each circuit that should be separated. So a set of 5 items is necessary for each circuitry. So as soon as voltage is applied the right connection is open. I asked myself whether it is better to use a whole chip (which name?) or a series of transistors or mosfets or even opto-couplers. Whereas I do not know whether programming of a pic is partly analogue so opto-couplers might not work.
This is exactly what I presume. Every mp3-player must contain a similar circuitry - basically every plug and play device.it's all been discussed before...
That does not deal with the issues occurring when the pins needed for programming are used in the circuitry serving the pic aswell.
Melanie, I am sure you want me to treat you with respect. If so, don't give me advice if not asked for it in general.People give you suggestions here, things they use, things that work for them. You can do what works for them, you can take the idea and create something of your own, or you are free to do something completely different. But hey, let's not post a detailed specification and shoot people down when they don't meet it exactly!
Nice. I like it because in some situations it is the right approach and in others...I let the water cool , ... then go back to the previous problem.
Last edited by Ted's; - 30th August 2008 at 18:29.
Melanie is the ADMINISTRATOR of this forum and the most knowledgeable person you will find here. Any advise she gives about the usage of this forum or PICs, you can bet is right on the money. It would be a good ida to take it.
Here is a suggestion from me.
Take some electronics classes if you do not like the advice given on this forum.
But most of all take SEVERAL classes in manners.
You will benefit greatly.
Dave
Always wear safety glasses while programming.
Hi, Ted's
I just wonder what your bunch of Mosfets will really do ...
due to their own reverse diodes included ???
Good question ehhhhh ???
Alain
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Why insist on using 32 Bits when you're not even able to deal with the first 8 ones ??? ehhhhhh ...
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IF there is the word "Problem" in your question ...
certainly the answer is " RTFM " or " RTFDataSheet " !!!
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Hi,
Could someone explain to me ...
I was posting about the interesting behaviour of Mosfets in such use ...
Then, when sending, a message shortly appeared talking about administrators ... that I had not enough time to read.
seems the ted's previous message has been taken off ... but mine was not offending at all !
Alain
************************************************** ***********************
Why insist on using 32 Bits when you're not even able to deal with the first 8 ones ??? ehhhhhh ...
************************************************** ***********************
IF there is the word "Problem" in your question ...
certainly the answer is " RTFM " or " RTFDataSheet " !!!
*****************************************
Sorry Alain!
You were replying to a post that got moderated, so it moderated yours too automatically.
We were doing it at the same time.
I will undo the automatic part.
<br>
DT
It's the only part of this job I really don't like.
But sometimes people go way beyond the acceptable.
Nothing more I could do.
At any rate, I think this thread's done.
DT
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