TSI-1575 APPLICATION CODE INSTALLATION PROCEDURE


  The following procedure requires the use of a terminal emulation
  communications program to install the new 1575 software.
  This example shows the procedure using Procomm Plus for DOS.
  Many other communication programs can be used if they are configured
  similarly.

  The key to loading the 1575 is to wait for the '->' prompt before
  sending the next line of the ASCII hex software file.  The 1575 needs
  time to program the received data into FLASH memory before it can accept
  the next line of the software file.

  The ability to wait for a prompt character makes the download go as fast
  as possible, without overrunning the 1575's input buffer.  Procomm and other
  programs have the ability to define a Line Pace Character, which would be
  the '>' character (62 decimal, 3E hex).


  1.  Configure Procomm Plus -

	Go to Setup Menu (Alt-S)
	Select Protocol Options
	Select General Options
	Set Abort Xfer if CD Lost = no  
	Select Protocol Options
	Select ASCII Protocol
	Set Char Pacing             = 0 msecs
	Set Line Pacing             = 0 tenths of a sec
        Set Pace Character          = 62  (use '>' as pace character)
	Set CR Translation (Upload) = None
	Set LF Translation (Upload) = STRIP
	Escape out

  2. Connect the computer to the TSI-1575 RS-232C interface and observe the
     1575 prompt.  The computer must be operating at the TSI-1575 baud rate.

        1575>

  3. Type "$$DOWNLOAD" at the prompt and enter.

        1575>$$DOWNLOAD

  4. The TSI-1575 should responds as follows:
	
	HELP                        Display this screen of commands
	ECHO  (ON,OFF)              Turn character echo ON or OFF
	ERASE                       Erase all FLASH blocks for A & B
	ERASE (A,B)                 Erase all FLASH blocks for A or B
	ERASE (P1,...,P4,M1,...,M8) Erase specified FLASH blocks
	LOAD                        Erase & start download of Motorola S-record file
	STATUS                      Show Status of downloaded code
	RB      addr                Read   bytes starting  at specified hex address
	WB      addr value          Write  8-bit hex value at specified hex address
	WW      addr value          Write 16-bit hex value at specified hex address
	GO                          Start execution of downloaded code

        Bootstrap Version  : V1.03, Jan 8, 1999
	Application code   : Installed & Confirmed
        Expected Checksum  : 09947959              (sample, actual will vary)
        Actual Checksum    : 09947959                        "
        Bytes of Code      : 627506                          "
	User Dload Request : No
	Trap Occurred      : No
	Dnld>

  5. Type LOAD at the "Dnld>" prompt.
     Watch FLASH erase messages.
     Special "->" prompt should appear as follows:

	Dnld>LOAD
	Erasing ...
	Param Block 1, 2
	Main Block  1, 2, 3, 4
	Boot Block  2
	Param Block 3 4
	Main Block  5, 6, 7, 8
	->  

6. Upload FLASH (this requires approximately 15 minutes at 38.4K baud) 

	Page Up 
	ASCII protocol
        A:1575_XXX.hex          (Refer to disk for value of XXX)
                                (Assumes the upload disc is in A: drive)

	->S00B0000313536372E6F75749B
	.
	.
	-S804000200F9

  7. After the last S-record is uploaded, the "Dnld>" prompt should return.

	Dnld>

  8. Type "GO" to run newly loaded application code.

	Dnld>GO
        Memory Test  : Bank 1  Dual Port 0 1 2 3  NV RAM
        EEPROM Fetch : Successful - Read 113 bytes
	Init Ports   : Completed
        Checking     : HDLC
	Led Test     : Completed
        Controller   : 0(111) 1(111) 2(111) 3(111)
	Ethernet     : Initialized
	ATS0=1E0Q1&D0X4S2=43
        1575>

  9. The software upgrade is complete.

      If you experience a problem call:

                        Ron Burgess
			TELESYNC, Inc.
			770-246-9662

			or Email: support@telesync.com