Graynomad:
Short answer, AFAIK there's no reason not to use them. I've just laid out aboard with the FT232R but am thinking of changing it to use the 230X........
EDIT: Another difference, nobody seems to have stock of the 230X. That's a worry if this is a product.
Rob
I agree with Rob....you should use them, and I can't find the 230X either!
Good point Lefty, the 230 only has RTS, that used to be OK for auto reset I think but I'm not sure these days. The 231 has all the signals so presumably it will toggle DTR in the same way as the 232 does.
you might want to try to find the FT230X at Mouser Electronics
I just did an Octopart search, it shows no stock anywhere. So I checked Mouser directly, 8000 in stock at $2.75. I guess Octopart isn't up to date although to be fair it's marked as a new product. Octopart normally my first port of call when looking for a part.
Graynomad:
Good point Lefty, the 230 only has RTS, that used to be OK for auto reset I think but I'm not sure these days. The 231 has all the signals so presumably it will toggle DTR in the same way as the 232 does.
you might want to try to find the FT230X at Mouser Electronics
I just did an Octopart search, it shows no stock anywhere. So I checked Mouser directly, 8000 in stock at $2.75. I guess Octopart isn't up to date although to be fair it's marked as a new product. Octopart normally my first port of call when looking for a part.
Rob
I believe for legacy reasons that IDE and/or AVRDUDE pulses both RTS and DTR to initate the auto reset function.
Make your own part. Don't ask me how though because I don't use Eagle, but it's usually a pretty easy procedure with these programs...oh hang on, we're talking about Eagle here
You can definitely use the FT230X to communicate with & reprogram an ATMega; as others have said there's no DTR on the chip but AVRDude pulses RTS so just tie it the same way and all works well.
I ordered a MicroFTX (MicroFTX) to evaluate the chip and it's been working reliably on various breadboarded designs for a few weeks now.
Regarding the availability -- early versions of the X chips have a USB bug that's supposedly been resolved with the new Rev D chips that are just coming out. I actually got an email from Mouser on Friday that the chips I ordered in October should be shipping the 16th; I just checked DigiKey and they say they'll have them on the 13th.
magagna:
You can definitely use the FT230X to communicate with & reprogram an ATMega; as others have said there's no DTR on the chip but AVRDude pulses RTS so just tie it the same way and all works well.
I just received notification from Mouser that they've finally got the FT230X in stock. They only have the QFN version; the SSOP package still shows no availability until Jan 7.