Writing to a flash memory address without nvm in samd21

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bop123
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Posted by bop123: Fri. Aug 17, 2018 - 04:51 PM
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Hi,

 

How can I write to a flash address without using NVM? I want to place the code version on a flash memory address. Can I do it through Toolchain in Atmel Studio? Has anyone tried it?

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Tools, In-System Debuggers and Programmers (ARM-related)
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Lajon
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Posted by Lajon: Sat. Aug 18, 2018 - 07:11 AM
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You can use a command line tool, e.g., atprogram is included with Atmel Studio, doc here:

http://ww1.microchip.com/downloa...

 

But I expect the version can only change when the program is updated so just include the version in the code.

https://stackoverflow.com/questi...

/Lars

 

 

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bop123
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Posted by bop123: Sat. Aug 18, 2018 - 01:10 PM (Reply to #2)
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Thank you for your reply. I was also trying the following-

1. https://microchipsupport.force.com/articles/en_US/FAQ/Storing-the-value-in-particular-memory-location-using-GCC?popup=false&navBack=H4sIAAAAAAAAAIuuVipWslLyzssvz0lNSU_1yM9NVdJRygaKFSSmp4ZkluSA-KVAvn58aaZ-NkyhPpCDosu-ODWxKDnDNrGkpCgzqbQkVak2FgDLjUJSXgAAAA

 

2. https://microchipsupport.force.com/articles/en_US/FAQ/Storing-the-value-in-particular-memory-location-using-GCC?popup=false&navBack=H4sIAAAAAAAAAIuuVipWslLyzssvz0lNSU_1yM9NVdJRygaKFSSmp4ZkluSA-KVAvn58aaZ-NkyhPpCDosu-ODWxKDnDNrGkpCgzqbQkVak2FgDLjUJSXgAAAA

 

3. https://microchipsupport.force.com/articles/en_US/FAQ/UC3-How-to-declare-a-variable-at-a-specific-address?popup=false&navBack=H4sIAAAAAAAAAIuuVipWslLyzssvz0lNSU_1yM9NVdJRygaKFSSmp4ZkluSA-KVAvn58aaZ-NkyhPpCDosu-ODWxKDnDNrGkpCgzqbQkVak2FgDLjUJSXgAAAA

 

4. https://gcc.gnu.org/onlinedocs/gcc-6.1.0/gcc/Common-Variable-Attributes.html

 

To view first 3 links, you will have to create an account on Microchip. Actually I want to insert bootloader version and application version on a memory location. I tried these but somehow its not working in main source file.

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