Rev 3514 Rev 3517
1 i2c-tiny-usb firmware customized for MLAB hardware AVRUSB01 1 i2c-tiny-usb firmware customized for MLAB hardware AVRUSB01
2 http://www.mlab.cz/PermaLink/AVRUSB01 2 http://www.mlab.cz/PermaLink/AVRUSB01
3 ----------------------------------------------------- 3 -----------------------------------------------------
4   4  
5 - original firmare from http://www.harbaum.org/till/i2c_tiny_usb/i2c_tiny_usb-2009-02-10.zip 5 - original firmare from http://www.harbaum.org/till/i2c_tiny_usb/i2c_tiny_usb-2009-02-10.zip
6   6  
7   -  
8   -  
9   -  
10   -  
11   -  
12 ------- -  
13   -  
14   -  
15 - the original package contains drivers as well, please use them 7 - the original package contains drivers as well
16   -  
17 - hardware supports Green LED (always on) -  
18 - hardware supports Red LED (busy indicator) -  
19 - hardware supports jumper for slowing down SPI clocks (just install jumper on J6 to position RX-GND) -  
20   8  
21 - the code itself has to be modifyied so that it vas possible to reconfigure IO pins for 9 - the code itself has to be modifyied so that it vas possible to reconfigure IO pins for
22 different hardware (minor changes in main function and in header file) 10 different hardware (minor changes in main function and in header file, new file config.h)
-   11  
23 - make process was automated so that "make all" creates all configuraed target binaries 12 - make process was automated so that "make all" creates all configuraed target binaries
24 (for ATmega8 and ATmega88) 13 (for ATmega8 and ATmega88)
25   14  
26 - binary files for MLAB hardware is in bin directory 15 - binary files for MLAB hardware is in bin directory
27   16  
28 - hardware configuration is this: 17 - hardware configuration is this:
29   18  
30 XTAL 12.0MHz 19 XTAL 12.0MHz
31 USB D+ PD2/INT0 20 USB D+ PD2/INT0
32 USB D- PD4 21 USB D- PD4
33 ISP_RES# PB2 22 ISP_RES# PB2
34 ISP_MOSI PB3 23 ISP_MOSI PB3
35 ISP_MISO PB4 24 ISP_MISO PB4
36 ISP_SCK PB5 25 ISP_SCK PB5
37 GreenLED PC1 (active L) 26 GreenLED PC1 (active L)
38 RedLedLED PC0 (active L) 27 RedLedLED PC0 (active L)
39 Slow SPI CLK PD0 (to GND) -