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authorFlorian Jung <flo@windfisch.org>2016-02-02 19:04:36 +0100
committerFlorian Jung <flo@windfisch.org>2016-02-02 19:04:36 +0100
commit35f7beb8b28a620f2e06e7105d787e0c53627235 (patch)
tree626817589938073e67a35dc50f3e937c1080d05a /avr/README
parent30abfc2adceeb7920d6a7688050ff1c60ec78a6c (diff)
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-This is a Rotary-Dial-to-USB-Interface, based on the USB AVR Lab
-(http://www.ullihome.de/wiki/USBAVRLab/index). For the schematics
-of the USB AVR Lab, see http://www.ullihome.de/wiki/USBAVRLab/Download
-
-This is a tiny board with an ATMEGA8 speaking USB using the V-USB
-library. It features a 10-pin-port with some AVR pins routed out,
-and also has a bootloader, so it can be programmed without an
-ISP adapter, using USB.
-
-
-The Rotary-Dial-to-USB-Interface expects a rotary dial to be attached against PB4/5.
-When you look at the front of the connector:
- ____ ____
-| 9 7 . . . | Attach the two cables for the idle switch at 9 and 0.
-| 0 8 . . . | Attach the two cables for the dial pulse switch at 7 and 8.
- ----------- (0 and 8 are routed to GND, 9 and 7 to PB4 and PB5.)
-
-The program expects the "idle"-switch to be open when the dial is idle, and to be closed
-when the rotary dial is not in its idle position.
-The "pulse" switch is expected to be closed most of the time, and to be only opened shortly
-for each pulse.
-(This can be adapted easily).
-
-When attached to a computer, the device acts like a USB HID keyboard, no
-additional drivers are needed.
-
-
-If you want to enter the bootloader, then generate more than 17 dial pulses by
-dialing a zero, not letting the dial return fully into idle position yet,
-and pulling it to zero again.
-
-
-
- This program is free software: you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation, either version 3 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>.
-
- For details, see main.c