Akizuki 32x16 LED matrix display with USB control
Niibe Yutaka
2009-05-20
Purpose
=======
This software is for controling Akizuki 32x16 LED Matrix display.
We connect a Metaboard implementation to the display, and use V-USB
software as the USB protocol stack (I'm using version 2009-04-15).
While I am using ATmega168, ATmega88 would be enough.
Files
=====
Readme.txt - This file
Makefile - The Makefile
aki-usb.c - Target software
akiusb-ctrl.c - Host software
Under the directory of usbdrv/, there is a copy of V-USB.
The file 'usbconfig.h' is based on usbdrv/usbconfig-prototype.h
V-USB can be obtained from http://www.obdev.at/vusb/
Build
=====
Just invoke 'make' produces aki-usb.hex.
$ make
Download aki-usb.hex with avrdude
# avrdude -p m168 -c usbasp -U flash:w:aki-usb.hex:i
Invoking 'make aki-usb-ctrl', you get the controling executable on PC.
$ make akiusb-ctrl
Run it and you'll see invadors
# ./akiusb-ctrl
Author
======
This software (aki-usb.c and akiusb-ctrl.c) is written by Niibe Yutaka,
and copyrighted by the Free Software Initiative of Japan in 2009.
License
=======
This software (aki-usb.c and akiusb-ctrl.c) can be distributed under
the terms and conditions of the GNU GPL version 3 (or later version).
Circuit
=======
It is a implementation of Metaboard.
CLK COL ROW STR LAT
-+- ^ ^ ^ ^ ^
___ | | | | | |
+-[___]-+ | | | | |
_|_ 470 | | | | |
\ / LED | | | +---+ -+- | |
_v_ | | | | _|_ | | | | | |
| | | | | /// | | | | | |
28| 25| 24| 23| |22 20| 19| 18| 17| 16| 15|
+----------------------------------------------------------------------+
| PC5 PC4 PC3 PC2 PC1 PC0 GND AVcc SCK MISO MOSI OC1B/ OC1A/|
| PB2 PB1 |
| ATmega88/168/... |
| INT0/ |
|RESET PD2 PD3 PD4 Vcc GND XTAL1 XTAL2 PD7 |
+----------------------------------------------------------------------+
|1 |4 |5 6| |7 8| |9 10| 13|
| | | | | | | +-+ |
| | | | +-||-+ | | _|_
o | | | |0.1u| +-|[]|-+ ///
/ | | | | _|_ 20.0MHz
o | | | | /// -+-
_|_ | | | | | ___
/// | | | +------------------------------+--<___| Vcc
| | | ___ _|_
| | +--[___]-----+-----------------+ /// 33u
| | 68 _|_/ | ~|~ ___
| | // \ Zener 3.6V | +--<___| GND
| | /___\ | _|_
| | _|_ | ///
| | /// |
| | ___ | ___
| +-----------------------------[___]-+------<___| D-
| ___ 1.5k ___
+--[___]----+-----------------------------------<___| D+
68 _|_/
// \ Zener 3.6V
/___\
_|_
///
... connected to Akizuki 32x16 LED Matrix
___
CN1-2 --<___| ROW
+-----------------------+ ___
| LED1 LED2 | CN1-3 --<___| COL
| | ___
| | CN1-5 --<___| CLK
| | ___
| | CN1-6 --<___| LAT
+-----------------------+ ___
CN1-7 --<___| STR
___
CN1-8 --<___| Vcc
___
CN1-10 --<___| GND
CN2-3 ---- CN1-4
CN2-1 -------------< LED Power +5V
CN2-9 -------------< LED Power GND
Happy Hacking.
