Rev 3472 Rev 3517
1 USBasp firmware customized for MLAB hardware AVRUSB01 1 USBasp 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.fischl.de/usbasp/usbasp.2011-05-28.tar.gz 5 - original firmare from http://www.fischl.de/usbasp/usbasp.2011-05-28.tar.gz
6 - the original package contains drivers as well, please use them 6 - the original package contains drivers as well, please use them
7   7  
8 - hardware supports Green LED (always on) 8 - hardware supports Green LED (always on)
9 - hardware supports Red LED (busy indicator) 9 - hardware supports Red LED (busy indicator)
10 - hardware supports jumper for slowing down SPI clocks (just install jumper on J6 to position RX-GND) 10 - hardware supports jumper for slowing down SPI clocks (just install jumper on J6 to position RX-GND)
11   11  
12 - the code itself has to be modifyied so that it vas possible to reconfigure IO pins for 12 - the code itself has to be modifyied so that it vas possible to reconfigure IO pins for
13 different hardware (minor changes in main function and in header file) 13 different hardware (minor changes in main function and in header file)
14 - make process was automated so that "make all" creates all configuraed target binaries 14 - make process was automated so that "make all" creates all configured target binaries
15 (for ATmega8 and ATmega88) 15 (for ATmega8 and ATmega88)
16   16  
17 - binary files for MLAB hardware is in bin directory 17 - binary files for MLAB hardware is in bin directory
18   18  
19 - hardware configuration is this: 19 - hardware configuration is this:
20   20  
21 XTAL 12.0MHz 21 XTAL 12.0MHz
22 USB D+ PD2/INT0 22 USB D+ PD2/INT0
23 USB D- PD4 23 USB D- PD4
24 ISP_RES# PB2 24 ISP_RES# PB2
25 ISP_MOSI PB3 25 ISP_MOSI PB3
26 ISP_MISO PB4 26 ISP_MISO PB4
27 ISP_SCK PB5 27 ISP_SCK PB5
28 GreenLED PC1 (active L) 28 GreenLED PC1 (active L)
29 RedLedLED PC0 (active L) 29 RedLedLED PC0 (active L)
30 Slow SPI CLK PD0 (to GND) 30 Slow SPI CLK PD0 (to GND)