Now type the command "avrdude -c arduino -p m1284 -P COM59 -b 19200 -v" to see details about the microcontroller.

Okay I will only change the low byte fuse. Because we have already calculated the fuses and to change the CPU frequency only the low fuse byte fuse needs to be changed. High byte fuse and extended fuse doesnot deals with the oscillator frequency and clock source.

Type the command "avrdude -c arduino -p m1284 -P COM59 -b 19200 -U lfuse:w:0xff:m" to write the low fuse byte.

Again type the command "avrdude -c arduino -p m1284 -P COM59 -b 19200 -v" and check if you have successfully changed the fuses.



Atmega3328:
0 Rx
1 Tx
2 rs485 contr
7,8 RFID
9 buzzer
10,11,12 Shift Register
13 Gp
14,15 RxTx Led (to ne dos no ntoi nued)
16 Valid in
17 Reset pin
3 Push button


Atmega1284:
0 Reset pin
8 Rx
9 Tx
12 rs485 contr
13 Gp
14 Valid in
15 buzzer
18,19,20 Shift Register
21,22 RFID
23 Push button
24,25 RxTx Led (to ne dos no ntoi nued)