CC2640: How can I fill the .snvsectors to 0x00 rather than 0xFF ?

Choongbeom You

Part Number: CC2640

Hello,

Usually, we check that there is no difference between code data and flash data after programmed the cc2640 firmware to device.

We use gang s/w (Flash-Pro ARM) for programming firmware and checking.

When I compare code data and flash data, the snvsectors (0x1D000 ~ 0x1EFFF) is different like below.

I know there are no functional problems here but I don't want to see the differences.

Is there any solution for this? I tried to fill unused code memory to 0xFF in linker options of IAR like below but it didn't work.

I'm using sdk-2.2.5.

Thanks,

Calvin

over 4 years ago

0 desouza over 4 years ago

TI__Guru**** 169234 points

Calvin,

Thanks for your inquiry. I notified a team member and he will provide additional insights as soon as possible.

Regards,

Rafael

0 Luis M over 4 years ago

TI__Expert 5345 points

Calvin,

This looks like a question for IAR. Have you tried contacting them?

In any case, 0xFF is the default, erased value of flash memory. I don't recommend filling the .snvsectors in memory with zeroes, but instead filling the file with 0xFF.

-Luis

Because of the holidays, TI E2E™ design support forum responses will be delayed from Dec. 25 through Jan. 2. Thank you for your patience.

Bluetooth®︎

Bluetooth forum

CC2640: How can I fill the .snvsectors to 0x00 rather than 0xFF ?