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No Assembly Required!
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Cortex-M3 has complete hardware support for interrupts
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Interrupt Service Routines (ISRs) are purely written in C/C++
Interrupt setup is easily done in C/C++
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ASM
No boot code ASM, no system configuration ASM
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ARM7 compilers normally comes with a ASM boot routine (in object form)
that does setup.
For Cortex-M3, no boot routine is needed
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C/C++ array which contains the vectors (pointers to the C/C++ functions)
Pointer to the stack (a C/C++ array)
Cortex-M3 hardware loads the stack pointer from memory and the initial PC from
memory and enters as a normal C function.
User C/C++ code is all that is required.
Entire software code base can be written in C/C++
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ISRs
RTOS
Application code
C/C++
PP090329