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SPM and .db

#1 · May 26, 2025, 4:09 pm

Hello;

I have a hex-file for an Attiny13 where I use .db-directive for Data and SPM for writing into the flash memory. At real Attiny13 it works but when I use this hex-file in simul-IDE both does not work. Can anyboby tell me why this could be so ? Best regards

#2 · May 27, 2025, 10:26 am

Hi.

AVR SPM instruction is not implemented by now.

#3 · June 3, 2025, 3:01 pm

Basic support for SPM in Attiny13 was added to development version (1.2.0).

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#4 · June 3, 2025, 4:01 pm

thank you very much. I will try in the next days. is it planned to support SPM for other AVR processors, too ?

#5 · June 5, 2025, 3:03 pm

I guess that eventually it will be added to other AVRs as well.

Attiny13 is simpler because it does not have Bootloader section, but other need support for Bootloader before SPM.