How to set up the ARM instruction set by default?

[lhf]

Hi： Now keil4 default is to use the 16_bit THUMB instruction set, if I want to set it to start the program using the 32_bit ARM instruction set, how should we do? thanks

[RK]

The Cortex-M cores on the nRF series don't support the ARM instruction set, just the THUMB one, so you can't set it to ARM

[endnode]

Well according to this ARM Cortex-M4 support 32-bit THUMB-2 instruction set as well as others... but I assume Keil compiler knows this.