How to buy the STM32F103CBT6 as programmer?

[Dian.1]

If I make a custom board and I want the same STM32F103CBT6 on chip board programmer debugger, how do I make the STM32F103CBT6 that kind of debugger programmer? If I buy that component I assume it isn't automatically configured that way, so how to achieve that?

[TDK]

They're not sold with the st-link firmware pre-programmed, and the firmware isn't distributed.

You can buy a cheap nucleo board with the chip and transplant the chip for about $10.

Or, you can get put an STLINK-V3MODS on the board, which is intended to be used in this manner.

https://www.st.com/en/development-tools/stlink-v3mods.html

[Uwe Bonnes]

You can find the bootloader on the net.