Texas Instruments MSP50C614 manual Initializing Chip, ±27. Init Menu Option

Software Emulator

Stop Internal : This menu option halts execution of an internal program. It provides an internal picture of the chip at the time the internal program execution was halted. Note that due to the asynchronous nature of this halt, one erroneous instruction may be executed before the chip actually stops. For the MSP50P614/MSP50C614 chip, it restarts the emulation mode and reads the CPU and RAM values. Execution can then proceed either in emulation mode, or in internal mode to the hardware breakpoint. NOTE: A hardware breakpoint must be set using SHIFT+RIGHT mouse click to the line of interest.

Synchronize Project/Chip : This menu option compares the currently opened project object code with that in the program memory of the chip. The number of location not matched is displayed.

5.6.5Initializing Chip

When the Chip is RESET, the hardware initializes the chip's I/O registers to a know state. But the data memory, accumulators, accumulator pointers, indirect registers and other system registers are at a random state. Register initializations are done by the Init menu. There are five initialization options (Figure 5±26), each of which is described below:

Figure 5±27. Init Menu Option

All except BP : This menu option initializes all internal registers and all RAM locations on the chip to zero (except PC which is set to start of program). It also resets the cycle counter. The program counter set at the value indicated by the start vector at address 0xFFFF. However, the breakpoints (if any) are not reset. This is the preferred initialization when a program is being debugged.

Code Development Tools 5-27