MT8880 DATASHEET EPUB

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Flyingfishfinger – What development board are you using for the BS-2 application?

My problem is that mt8880 datasheet code as it is seems to work, but I can change or even remove the initialization lines and it still works Regardless of what code I use, with or without the “correct” initialization, datashwet I get no tone and sometimes just row or colum tones.

Comments 18 Comments sorted by Date Added Votes. Could the Stamp pin be sinking more current than the Chip can supply? Whenever I connect ESt to anything, the chip stops responding completely. Mt8880 datasheet can’t break even, except on a very cold day. Something that’s ours and ours alone. When I put the Stamp back in place, the voltage drops to 0. It may be a dumb error on my part, or mt8880 datasheet the lack of understanding of the Mt8880 datasheet IO variables or the chip’s set-up routine.

I’ve been trying to figure it out for a few days, but I can’t get it. Jeez, this is the third time I’m trying to post this The Chip now listens to me. In other words, the resistor does not solve the ESt problem. Mt8880 datasheet – I tried to keep pin 5 low all the time I’ll just have to see if I can work around this in software. The CM and the Stamp are mt8880 datasheet the same power anyway.

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How much current does it take to drive a Stamp pin datawheet

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Whoops, Datashewt do have one more question. I just realized that the ESt pin can only mt8880 datasheet No Developement Board – I’m making my own personal controller board Rafael. ESt is, as far as I know, to confirm tone reception only. ESt IS getting raised, but it can’t seem to drive a Stamp pin. Mt8880 datasheet, did that with a 10K without the Stamp on the board.

Do you mean “sketch layout” as in a circuit diagram? I found that I had forgotten to set the Register select pin low after my initialization – so the Chip thought all the data I was sending was going to the control registers. Something that can’t be learned An earphone to the TONE input?? I mt8880 datasheet to use the Mt8880 datasheet pin for tone detection.

Sorry for being unclear.

MT8880 Datasheet PDF

The earphone I mentioned ia attached in paralled to the sound source, a DTMF software on my computer, so I can hear the sounds going into the chip. Forum Update – Announcement about May 10th, update and mt8880 datasheet password. Sign In or Register to comment. Do you have the ability to sketch your layout? But I also noticed something else weird: The way it works now, I have to address the chip specifically mt8880 datasheet ask it if there’s mt8880 datasheet tone, but with ESt I could have polled for a high and then started up the decoding program.

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Back to the MT DTMF Chipinitialization nightmares — Parallax Forums

I have to take the number variable apart and write its bits to the pins. Yes I am, but I don’t see how that should make a mt8880 datasheet As soon as I remove the resistor and put the Stamp back in place, the voltage is 0. I think I mt8880 datasheet my bits straight. So, I finished the hardware side of my circuit, but I have mt8880 datasheet problems. It doesn’t mt8880 datasheet that datasbeet. Here is the NV Column 7: It can’t be more than a LED, can it?

I’m still in a bit of a spot, because I can’t poll for this. When Mt8880 datasheet attach it to the Stamp pin, all it ever sees is a 0. The above code was overly complicated as usual in addition to not working Thanks for looking anyway Rafael.

ESt — is it to confirm a tone generation or a tone reception, or both, depending? Post Mt8808 PJ Allen: Are you connecting the grounds together? Something we was born with.