MSP430 IAR C/C++ Compiler reference guide - Rice University

The DLIB runtime environmentFor the hardware initialization, it looks like this:Figure 1: Target hardware initialization phase● When the CPU is reset it will jump to the program entry label __program_startin the system startup code● The watchdog timer is disabled● The stack pointer (SP) is initialized● The function __low_level_init is called if you have defined it, giving theapplication a chance to perform early initializations.For the C/C++ initialization, it looks like this:Figure 2: C/C++ initialization phase●Static variables are initialized; this includes clearing zero-initialized memory andcopying the ROM image of the RAM memory of the rest of the initialized variablesPart 1. Using the compiler57