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FLASHER 5 Manual 6

Using the serial link to program in circuit

FLASHER can be used for in circuit programming

of supported CPUs, which incorporate built in

firmware for serial update of user flash. The target

system has to be designed to support this mode of

operation. Refer to target specific connection dia-

grams or Users manuals of your target CPU.

FLASHER

Target system

with

FLASH MCU

Clock

synchrounous

serial

RS232

Standard

Nul-Modem

cable

Customer

cable

Basic configuration for serial programming

Operating FLASHER in stand-alone mode

After download the target program and all settings are stored in FLASHER 5s on board FLASH memory

and remain valid until new settings or data are sent to FLASHER.

Any number of microcontrollers may now be programmed by FLASHER (one at a time) without the need of

a host PC, by simply pressing the start button. FLASHER will use the settings which have been made in the

PC-program. This includes the selection of target address range as well as any options. Whether the target

CPU will be erased before programming depends on setting of option “Automatic clear before program”.

Progress and result of the operation is indicated by FLASHERs LEDs:

Status of LED Meaning

GREEN, flashing Erasing / Programming / Verifying operation in progress

GREEN Programming operation successful

RED Programming operation failed

Remote control of FLASHER 5

FLASHER 5 can be remote controlled by automated testers without the need of a connection to PC and

Flashers PC program. Therefore FLASHER 5 is equipped with additional hardware control functions, which

are connected to the SUBD9 male connector, normally used as RS232 interface to PC.

The following diagram shows the internal remote control circuitry of FLASHER:

Pin No. Function Description

1 START A positive pulse of any voltage between 5 and 30V with duration of min. 30 ms starts

“Auto” function (Clear / Program / Verify) on falling edge of pulse. Whether Clear is

executed depends on Options | Filling & misc. | Automatic clear before program.

4 BUSY As soon as Auto-Function is started, BUSY becomes active, which means that tran-

sistor is switched OFF.

7 OK This output reflects result of last action. It is valid after BUSY turned back to passive

state. The output transistor is switched ON to reflect OK state.

5 GND Common Signal ground

1 2 3 4 5 6 7 8 9 10 11 ... 17 18

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Renesas M16C/6V Manual de usuario Pagina 6

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