What is the difference between BGM111A256V2 and BGM111A256V21 ?
Is ...V21 replacing ...V2 ?
The difference is only in the default firmware that gets programmed in production. Hardware is exactly the same.
Chapter 2. Ordering Information, subnote 2.
If you have the ARM SWD debug interface exposed in your PCB (like all designs should have), then you can flash any firmware to the BGM111 at your production line. That means you don't need to care if the part is BGM111 V2 or V21.
Thank you very much
I will continue with the ....V2