Renesas M3T-ICC740 Informações Técnicas descarregar pdf (Página 16)

4. Quick Tour

Let’s try using the TM actually following a quick tour.

In the TM, you need to specify a project name and a working directory before you can

develop a project. In the quick tour, the TM is set up as shown below. This setting can be

changed as necessary.

Working directory: c:\work\proj_1

Project name: proj_1

Source file: tutor3.c

The TM does not automatically generate a directory for each project you create. Projects are

generated in the working directory. Users must create a working directory as necessary.

The source file tutor3.c was derived from the sample program of LAR Systems by altering it

for use with the M3T-PD38SIM. Processing by this program and the source code of it are

shown below.

Processing

The program comprises an infinite loop in a while statement of the main function.

The variable my_char assumes values ‘a’ to ‘z’ at random depending on the function.

When the variable my_char assumes the value ‘i’, a BRK instruction interrupt is generated

by the function.

The function brk_interrupt is executed by a BRK instruction interrupt, setting the variable

my_char to ‘.’. The statement interrupt[0x00] of this function sets the address of the function

brk_interrupt in the BRK instruction interrupt vector for the 3803 group.

Thereafter, processing in an infinite loop of the main function is repeated.

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