Won't flash using IDE 2.2.1

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Hi, I am trying to program LGTBF328P - MiniEVB nano board. I get the following error:

avrude error: protocol expects OK byte 0x10 but got 0xfc
avrdude error: unable to read signature data for part ATmega328P, rc=-3
avrdude error: unable to read signature data, rc=-3
Failed uploading: uploading error: exit status 1

Any idea's ?

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Update: I wonder if I got some bad boards. I have 5 boards, 3 program ok, 2 won't.

[hmeijdam]

You could try to use one of the working ones for attempting to burn the bootloader on one of the defective boards.

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You could try to use one of the working ones for attempting to burn the bootloader on one of the defective boards.

Can you show me how to connect the SPI pins? It is not clear from the board which ones connect to MOSI and MISO, CLK etc, seems to have a pin missing. Cheers (can only see SWC and SWD)

[hmeijdam]

You need LGTISP to burn the bootloader via SWD and SWC.

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Thanks, will give it a try.

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I loaded up a good LGT board with the LGTISP.ino sketch ok. However, when I go to program the bootloader to another LGT board connected with SWC,SWD etc it gives error.

avrdude error: programmer is out of sync
 ***failed;
avrdude error: programmer is out of sync
 ***failed;

I am somewhat confused as the instructions say to use AVR ISP as programmer, even though there is an " LGTSWD markii as ISP" option ??

[hmeijdam]

There is a LarduinoISP sketch amongst the examples. Did you compile and load that one?
It also mentions how to wire it up. You need to look at the right column under LGT8FX8P:

The LGTSWD Mark II is this one. Probably not what you have.

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You linked the github site, it only shows these files, no examples. Please be specific.

You show me an Arduino as ESP, in your example above, I am using LGT to program LGT. ARe the pin connections the same?

[hmeijdam]

This is the example I mean. It comes with this core.

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Right, you did not link that initially, now I understand. BUt the question remains, If I use LGT as ESP are the pin connections the same?

[hmeijdam]

LGT as ISP has these connections.

If that does not work, I will dig up my LGT's and hook them up. Has been a few years since I had to bootload one.

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I don't have those examples .... maybe I have the wrong LGT library?

I got the library from here:
https://raw.githubusercontent.com/dbuezas/lgt8fx/master/package_lgt8fx_index.json

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LGT as ISP has these connections. If that does not work, I will dig up my LGT's and hook them up. Has been a few years since I had to bootload one.

I don't have those names, please give the corresponding D8,D10) etc ..

[hmeijdam]

Well.... you are posting your question in the Github forum of the core I am using, so I assumed you will have the LarduinoISP as well. But apparently not

Here are the pins

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I have added the core I am using above, is it incorrect?