/* * Startup code for the STM32F103-based blue pill board. * * The stack pointer is initialised to the top of the stack (which * grows downward), so I pointed it to the end of the SRAM (where the * stack should be). */ .cpu cortex-m3 .thumb vectors: .align 2 .long 0x20005000 /* stack pointer points to top of SRAM */ .long reset_handler /* reset handler */ .long hang /* NMI handler */ .long hang /* hard_fault_handler */ .long hang /* memory management handler */ .long hang /* bus fault handler */ .long hang /* usage fault handler */ .skip 0x20 /* reserved */ .long hang /* svcall handler */ .long hang /* debug handler */ .skip 4 /* reserved */ .long hang /* pendsv handler */ .long hang /* systick handler */ .skip 0x100 /* remaining / IRQ vectors */ .thumb_func hang: b . .thumb_func reset_handler: bl main