Arduino Nano

Hello, can I use an Arduino Nano to make an LGTISP as a replacement for the LGT8F328P?

[hmeijdam]

I did that in the past. Using a regular Nano V3 as LGTISP

You have to find the file HardwareSerial.h
For my portable Arduino IDE installation it is in:
F:\Arduino\arduino-1.8.19\portable\packages\arduino\hardware\avr\1.8.6\cores\arduino

Then edit the file and change:

#define SERIAL_RX_BUFFER_SIZE 64

into

#define SERIAL_RX_BUFFER_SIZE 250

Save the HardwareSerial.h file and then compile/load the "LarduinoISP" sketch in your nano.

When done you can edit the HardwareSerial.h again to change the buffer back to 64

I tried and it didn't work:
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0xe0
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 2 of 10: not in sync: resp=0xe0
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 3 of 10: not in sync: resp=0xe0
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 4 of 10: not in sync: resp=0xe0
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 5 of 10: not in sync: resp=0xe0
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 6 of 10: not in sync: resp=0xe0
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 7 of 10: not in sync: resp=0xe0
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 8 of 10: not in sync: resp=0xe0
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 9 of 10: not in sync: resp=0xe0
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 10 of 10: not in sync: resp=0xe0

avrdude done. Thank you.

Failed uploading: uploading error: exit status 1

Arduino Nano ---- LGT8F328P
D10 RST
D12 SWC
D13 SWD

[hmeijdam]

You have mixed up the SWD and SWC connection

It is:

// pin name:    Arduino:          LGT8FX8P:
// slave reset: 10:               PC6/RESET 
// SWD:         12:               PE2/SWD
// SWC:         13:               PE0/SCK

Bạn đã nhầm lẫn giữa kết nối SWD và SWC.

Đó là:

// pin name:    Arduino:          LGT8FX8P:
// slave reset: 10:               PC6/RESET 
// SWD:         12:               PE2/SWD
// SWC:         13:               PE0/SCK

I followed the tutorial video on YouTube: https://youtu.be/pqTu_E8C9q4?si=glMR68Ctkc8Sk2m9. My problem was selecting the wrong board when creating the ISP and burning the bootloader.