Atmel AT89STK-06 Guía de usuario descargar pdf (Pagina 15)

Part Programming

AT89STK-03 Hardware User Guide 3-13

7609B–SCR–11/06

3.1.2 Execution mode When the E2PROM is connected to ports P4.2 and P4.3 or P3.6 and P3.7, the boot-

loader works automatically in execution mode. At reset, it transfers the code from the

E2PROM to the internal CRAM (volatile program memory) and execute it. The E2PROM

must contain a valid code. As the bootloader does not support E2PROM programming

functions, the E2PROM must be programmed by external programmer or by a specific

code which is programmed in CRAM and which behaves as a bootloader. This code

programs the E2PROM by the code received from FLIP.

RS232C DEMO BOARD CONFIGURATION

- Set the POWER switch in OFF position

- Remove any USB cable connected to demoboard

- Remove any E2P present on DIP socket

- Configure the power jumper accordingly to power source wich supplies the demo board

- Connect a RS232C cable between demo board and PC

- Set the POWER switch in ON position

--> Result : PWR ON and ALE leds are switched on

--> Trouble shooting : check if 8 Mhz quartz is correctly fitted

PROGRAMMING PART

- Run FLIP

- Select part at8xc5122 for FLIP 1.8.8 or part at8xc5122_dpw for FLIP 2.x.x

- Select a RS232C communication

- Establish a serial communication with the appropriate COM number and a baudrate comprised

between 1200 and 38400 .

---> Results :

- Bootloader Vers = 1.1.2

- DeviceBoot Ids = 02 00

- Start Application button becomes red

- Select Erase, Blank check, Program and Verify options if part is running for the first time, otherwise

just select Program.

- Load the code file (Intel hex format) into FLIP buffer

- Click on Run button

- Click on Start Application button

Table 3-1. Programming the MCU with FLIP

Interface Perform the following actions Comments

1 2 ... 10 11 12 13 14 15 16 17 18 19 20 ... 37 38

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