The avr-size.exe is not suit for avr mcu about avr-gcc-build

[ZakKemble]

avr-size does not need to know the MCU to show you the memory usage (omit the --mcu arg). If you want to get the usage as a percentage then the new correct way is to use avr-objdump with the -Pmem-usage argument: avr-objdump -Pmem-usage myproject.elf which will output something like:

myproject.elf:     file format elf32-avr
AVR Memory Usage
----------------
Device: attiny402

Program:    1934 bytes (47.2% Full)
(.text + .data + .bootloader)

Data:         16 bytes (6.2% Full)
(.data + .bss + .noinit)

This is because the MCU and available memory sizes are now embedded into the .elf file. See here - https://web.archive.org/web/20211026214736/https://www.avrfreaks.net/forum/where-does-avr-size-get-data-supported-devices

[wanggaoteng]

avr-size does not need to know the MCU to show you the memory usage (omit the --mcu arg). If you want to get the usage as a percentage then the new correct way is to use avr-objdump with the -Pmem-usage argument: avr-objdump -Pmem-usage myproject.elf which will output something like:

myproject.elf:     file format elf32-avr
AVR Memory Usage
----------------
Device: attiny402

Program:    1934 bytes (47.2% Full)
(.text + .data + .bootloader)

Data:         16 bytes (6.2% Full)
(.data + .bss + .noinit)

This is because the MCU and available memory sizes are now embedded into the .elf file. See here - https://web.archive.org/web/20211026214736/https://www.avrfreaks.net/forum/where-does-avr-size-get-data-supported-devices

I see, thank you for reply.
Best regards.

[atoomnetmarc]

Thanks!

I used your help to write a post-build event for Microchip Studio to get Memory Usage back: $(ToolchainDir)/avr-objdump -Pmem-usage "$(OutputDirectory)/$(OutputFileName)$(OutputFileExtension)"