AN910 datasheet(19/51 Pages) STMICROELECTRONICS

19 / 51 page

19/51

ST7 AND ST9 PERFORMANCE BENCHMARKING

5.7 68HC11 MCU TOOLS

5.8 68HC08 MCU TOOLS

5.9 ST7 MCU TOOLS

Hardware tools

MC68HC11A8 chip

MC68HC11A8EVM evaluation board

Note that the internal chip frequency on evaluation board was 2 MHz, but as 4 MHz versions are

available, this frequency was used for results (execution time values have been divided by 2).

Note that it was not possible to emulate external RAM.

Software tools

The integrated assembler IASM11 (DOS environment) allows to blend an editor and a cross

assembler into one single environment.

A DOS environment is used to debug programs.

Hardware tools

MC68HC708XL36 chip

EML08XL36 emulator module plugged in the M68MMEVS05 modular evaluation system

(platform board for EML08XL36)

Jumpers configure both.

Software tools

Rapid, a software development tool in a DOS environment allows to execute all the operations.

It consists of a configuration program (Rinstall) and a cross assembler (CASM). Rinstall contains

a serie of data entry screens. Only CASM and the MMEV08X DOS debugger were configured

as follows:

• Cross assembler configuration: “CASM assembler” entry screen

Name and fully path: 'path_of_CASM08.exe'

Primary options: S L D

Secondary options: S L D I

• Debugger configuration: “Debugger” entry screen

Fully path: 'path_of_MMEVS08.exe'

Options: -B

Note that the assembler does not seem to manage the zero page addressing mode. Thus, the

results have been modified to take this addressing mode into account. Without zero page

addressing mode, the execution time result changes to 0.61 and the code size result increases

up to 1.43.

Hardware tools

ST7275 chip

ST7 HDS (Hardware Development System) emulator with ST7275 DBE (Dedicated Board

Emulator)

Note that measures have been made with a 4 MHz MCU, but as 8 MHz versions exist, two values

are presented with the two frequencies (for the 8 MHz version, execution time values have been

divided by 2).

Software tools

The toolchain used for the ST7 includes a meta-assembler (ASM), a generic linker (LYN), and a

generic formatter (OBSEND). These software tools are used with the following options :

asm -sym -li 'name'

lyn 'name'

asm 'name' -fi = 'name'.map

obsend 'name', f, 'name'.s19, srec

The Windows environment is used by the debugger: Windows Debugger WGDB7.

AN910 数据表(PDF) 19 Page - STMicroelectronics

AN910 数据表(HTML) 19 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51

数据表下载

链接网址

AN910 数据表(PDF) 19 Page - STMicroelectronics

AN910 数据表(HTML) 19 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51

数据表 下载

链接网址

数据表下载