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Re: [avrdude-dev] FT232RQ pinout question
From: |
Darell Tan |
Subject: |
Re: [avrdude-dev] FT232RQ pinout question |
Date: |
Sun, 4 Nov 2012 19:57:50 +0800 |
Hi Daniel,
Yes you should be able to use the FT232R as if it was a normal serial port.
I use the Sparkfun FTDI breakout board (which has a FT232RL) as a bitbang
programmer for the ATtiny25 series, the ATmega328P, as well as the ATtiny10
because I do not have a "real" programmer. I (randomly) picked the "dasa"
configuration, which utilizes the following signals: RTS, DTR, TXD and CTS.
Hope this helps.
--
Regards,
Darell Tan
On Sun, Nov 4, 2012 at 5:17 PM, "Ing. Daniel RozsnyĆ³" <address@hidden>wrote:
> Hi all,
> is there a limitation on how can I use the serial port pins for ISP
> programming in the FT232R ?
>
> I will use an 244 tri-state gate, so the pins wont be normally driven, I
> suppose the FTDI chip has some pull up/down on those pins so that the
> serial line will operate normally.
>
> The only driven signal is on the /RI pin, with my pullup which controls
> the /OE on the 244 buffer.
>
> The miso/mosi/sclk/reset can be then really on ANY pin?
> (cts/rts/dtr/dsr/dcd?)
>
> (The GPIO's are out of question, I want to keep the RX/TX LEDs)
>
>
> Daniel
>
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