Renesas V850 Series Información técnica descargar pdf (Pagina 10)

Pamphlet U15763EJ5V0PF

O Functions implemented via C language descriptions

◆ Data and variables can be allocated to specified memory areas.

➝ Enables allocation of data and/or variables to memory areas that can be accessed at high speed

◆ Interrupt/exception handler processing can be coded in C language.

➝ Register save/restore processing required in assembly code can be performed automatically by compiler

◆ Assembly code instructions can be inserted into C language source code.

➝ Useful for partial, high-speed processing, etc.

◆ Access to peripheral I/O register can be handled as ordinary variable access.

➝ Uses "device files" that contain definitions of peripheral I/O register names, interrupt request names, on-chip

memory size, and other information

◆ Real-time OS (RX850, RX850 Pro) tasks can be coded

➝ Reduces code not required for tasks

Accessory Utilities

The CA850 provides various utilities that can be used for development of embedded systems.

O ROMization processor (romp850)

The initial values of variables must be set before running any applications when they are declared with initial

values. The romp850 utility generates these initial values and the information to be copied. This ROMization

processor's functions can also be used to generate information to be copied when ROM code is deployed to

RAM before executing.

O HEX converter (hx850)

This utility converts executable object files to a hexadecimal format. The following hexadecimal formats are

supported.

◆ Intel expanded hex format

◆ Motorola S type format (standard address)

◆ Motorola S type format (32-bit address)

◆ Extended Tek hex format

O Section file generator (sf850)

This utility allocates frequently used variables (among all variables used by an application) to an internal

RAM area.

O Dump command (dump850)

The dump command displays the contents of a specified object file or archive file in an easy-to-read format.

O Disassembler (dis850)

This utility converts text-attribute data (program code) from object files or archive files into assembly lan-

guage and displays the assembly language code.

O Cross reference tool (cxref)

This utility outputs cross reference information, tag information, call tree information, function metrics (num-

ber of lines in function, function's call frequency, etc.), and call data base (function call information).

O Memory layout visualization tool (rammap)

This utility displays a visualization of variable allocation information.

SOFTWARE PACKAGE

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Renesas V850 Series Información técnica Pagina 10