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MON390: DOWNLOADING MON390 INTO THE TINI BOARD USING MDK


Information in this article applies to:

  • C51 All Versions
  • C51 Version 7.04

QUESTION

How do I download the mon390 program onto the Dallas TINI board?

ANSWER

Follow these steps to download and run the Mon390 onto the Dallas TINI evaluation board.

Setting Up the Hardware

  • The Dallas TINI board uses a 5V, 250 mA, center positive power supply.
  • Make sure the jumpers are set correctly, in particular Jumper 4 which must be set to program the flash. Here are the default jumper settings for the TINI board (1 is connected, 0 is open):
    J21 00000
        00000
    J6  000
    J4  000
    J3  00
    J9  0
        1
        1
    J10 0
        1
        1
    J11 0
        1
        1
    J5  00
    J4  11
    J20 00000
        00000
    
  • There are two serial ports on the TINI board, the first is labeled 'Loader – Serial 0' This is the serial port that is used to program the TINI board.
  • The second serial port on the TINI port has no label, but is referred to as Serial 1. Mon390 will use this port to communicate from the board to the PC. Use of this port requires a DB9 male to female null modem adaptor. A null modem adaptor crosses signals so that like-wired devices can communicate with each other. A null modem adaptor is different than a gender changer.

Generate the Keil Monitor 390 Hex File for the Dallas TINI Board

  • On your hard drive, open \Keil\C51\MON390\Tinim400\mon400.Uv2.
  • Go to Project -> 'Rebuild all target files'. This will create a hex file of the monitor program. It will be located at: \Keil\C51\MON390\Tinim400\mon400.hex. This monitor project is preconfigured for the Dallas TINI board, so there is no need to change any settings in this project.

Using the Dallas Microcontroller Tool Kit (MTK)

  • From Dallas: " [MTK] allows an embedded system designer communicate with the bootstrap loader of the Secure Microcontroller family or other Dallas Semiconductor Flash-based microcontrollers through the serial port of a PC."
  • Download and install the latest version of the Dallas Microcontroller Tool Kit (MTK) from the Dallas Website.
  • Open MTK, and a screen will prompt to select a device. Select the 'tini' device from the list and press the 'OK' Button.
  • The main MTK window will open. The window background should be grey. The following assumes that COM 1 of the PC will be connected to Loader: Serial 0 of the board, and COM 2 of the PC will be connected to Serial 1 of the board.
  • Go to Options -> Properties, and select Port: 'Com 1' and Speed: '115200'
  • Go to Tini -> 'Tini Options', and press the '400 Defaults' Button. Press OK. This concludes configuring MTK.
  • Go to Tini -> 'Open COM1 at 115200 baud'. The window background should turn white.
  • Go to File -> 'Load Hex'. Open the folder at \Keil\C51\MON390\Tinim400\, and select 'mon400.hex'. Press OK.
  • MTK will begin loading the hex file The main window should display:
    Loading file  \Keil\C51\MON390\Tinim400\mon400.hex...
    Loading Bank 47...
    Load complete.
    
  • At the prompt in the main screen (the '>') type the letter 'E'. This will run the monitor program that now resides in bank 47. The monitor will not run unless you type 'E' here.

Debugging your Project

  • Open up the Keil project you wish to debug with the monitor.
  • Go to Project -> options for target -> debug tab. On the right hand side of the screen select ' MON390: Dallas Contiguous Mode' from the pull down menu. Press the 'Settings' button. Select Port: 'Com 2' and baudrate '115200'. Note the monitor is configured to only connect at 115200. Press the 'OK' buttons.
  • Go to Debug -> 'Start/Stop Debug Session'. Keil will connect with the monitor, and download your application.

MORE INFORMATION

SEE ALSO

Last Reviewed: Thursday, August 4, 2005


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