Which ARM board to buy for baremetal programming ? -

Here , I am focusing on only Cortex M0+ , Cortex-M3 and Cortex-M4 boards from popular STM32 family.

STM32 Nucleo-64 boards

Some of the important common features of STM32 Nucleo-64 boards are as follows :

Arduino connectivity support
ST-LINK/V2-1 debugger integrated so no external debugger probe required
Three interfaces supported on USB. Virtual Com port, Mass storage and Debug port

You may refer to Data Brief

No. of Bits: 32bit
Silicon Family Name: STM32L0xx
Core Architecture: ARM
Core Sub-Architecture: Cortex-M0+

Documentation available at Cortex-M0+

Eval board Documention available at STM32NucleoL053R8

MCU Documentation available at STM32L053R8 BUY

No. of Bits: 32bit
Silicon Family Name: STM32F103RBT6
Core Architecture: ARM
Core Sub-Architecture: Cortex-M3

Documentation available at STM32F103RBT6 BUY

This is the board we are using at Embedkari for online training purpose.

No. of Bits: 32bit
Silicon Family Name: STM32L4R5ZI
Core Architecture: ARM
Core Sub-Architecture: Cortex®-M4

No. of Bits: 32bit
Silicon Family Name: STM32F407
Core Architecture: ARM
Core Sub-Architecture: Cortex®-M4

ST-LINK/V2-1 debugger integrated so no external debugger probe required as per BUY link given below “embedded ST-LINK V2 debugger XYG”

You may refer to Data Brief for detail