Ollo/SideboardLED
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Documented the usage of the internal oscilator

Browse Source
This commit is contained in:
ollo 2018-12-08 00:22:39 +01:00
parent c1347221bb
commit 5b87ce2f1a
1 changed files with 11 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
README.md
View File

@ -11,15 +11,25 @@ Programmer, e.g.:
* AVRISPmkii
## Software
### Arduino
In order to flash the software, select the following settings in Arduino:
* Tools | Board "Arduino NG or older"
* Tools | Processor "Atmega8"
In your arduino installtion, update the CPU frequency, as we are using the internal clock with 8Mhz.
Find the following file */hardware/arduino/avr/boards.txt*.
Inside the file, search for the chapter **Arduino NG or older w/ ATmega8** and add the following line:
```
atmegang.menu.cpu.atmega8.build.f_cpu=8000000L
```
### Avrdude
The flashing itself is done with **avrdude**:
```bash
avrdude -c AVRISPmkii -p m8 -u -U flash:w:SideboardLED.ino.standard.hex
```
Initial once the fuses must be burned:
```bash
avrdude -c avrispmkii -p atmega8 -U lfuse:w:0xee:m -U hfuse:w:0xd9:m -U efuse:w:0xfc:m
avrdude -c avrispmkii -p atmega8 -U lfuse:w:0xe4:m -U hfuse:w:0xd9:m -U efuse:w:0xfc:m
```