I have some bare chip LGT8F328D (not P) and I successfully loaded the Optiboot bootloader into these chips with LGT SWDICE (I plugged a LED to pin PB5 and it flashes in triple then stop then flashes again, same as LGT8F328P). I have tried the following Optiboot
However, when connect the bare chip via USB TTL CP2102 but I can not load any sketch with Arduino IDE, avrdude reports the following error
Using Port : COM5
Using Programmer : arduino
Overriding Baud Rate : 57600
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0x19
With "resp=0xXX" change everytime I tried to reload.
I also tried to reset the chip manually by providing a reset button to GROUND line for reset (the chip is actually reset as it stops flashing), but it doesn't work.
I noted that only this bootloader make the LED @ PB5 flashed: optiboot_lgt8f328d_intosc.hex, the others don't. Is this compiled correctly since I tried to read the source codes and found that it includes lgtx8e.h / not lgtx8p.h.
I tried the chip LGT8F328P with optiboot_lgt8f328p.hex and it works like a charm without any problem, I tried with ~ 5 chips LGT8F328P and 3 chips LGT8F328D and experience the same problems, all the P chips work like a charm.
I have some bare chip LGT8F328D (not P) and I successfully loaded the Optiboot bootloader into these chips with LGT SWDICE (I plugged a LED to pin PB5 and it flashes in triple then stop then flashes again, same as LGT8F328P). I have tried the following Optiboot
optiboot_lgt8f328d_intosc.hex optiboot_lgt8f328d.hex optiboot_lgt8f88ds20.hex
However, when connect the bare chip via USB TTL CP2102 but I can not load any sketch with Arduino IDE, avrdude reports the following error
With "resp=0xXX" change everytime I tried to reload. I also tried to reset the chip manually by providing a reset button to GROUND line for reset (the chip is actually reset as it stops flashing), but it doesn't work.
I noted that only this bootloader make the LED @ PB5 flashed: optiboot_lgt8f328d_intosc.hex, the others don't. Is this compiled correctly since I tried to read the source codes and found that it includes lgtx8e.h / not lgtx8p.h.
I tried the chip LGT8F328P with optiboot_lgt8f328p.hex and it works like a charm without any problem, I tried with ~ 5 chips LGT8F328P and 3 chips LGT8F328D and experience the same problems, all the P chips work like a charm.
Have anyone successfully done with LGT8F328D?