Opkg architecture misunderstand

[B3B3K]

Device: Luckfox Pico Mini B, boot on sd card

Problem: opkg refuses install ipk file due architecture error

Detail: From mirrors, installed gcc package and ran tryed install it (opkg install gcc.ipk) but it gave this error:
Not selecting gcc 8.4.0 due to incompatible architecture.

Question: I m not being able to choose architecture and package source.

Used ipk soruces:

https://archive.openwrt.org/releases/packages-24.10/arm_cortex-a7/packages/
https://bin.entware.net/armv5sf-k3.2/
https://bin.entware.net/armv7sf-k3.2/Packages.html

[luckfox-eng33]

Are you using openwrt? Make sure you are using uclibc toolchain, we didn't test openwrt and may not be able to help much!

[B3B3K]

Are you using openwrt? Make sure you are using uclibc toolchain, we didn't test openwrt and may not be able to help much!

I have used uclibc, i compiled and installed in buildroot successfully. Also configured it. But i have problem with installk packages. Which architecture should I use?