MON390: Cannot Connect to Maxim Tini 400's Serial Port 0

Information in this article applies to:

• C51 Version 7.50

QUESTION

There are several pre-configured projects for MON390. One of the projects is configured for the Maxim (formerly Dallas Semiconductor) DS-TINI-1, the evaluation board for the DS80C400. The project is located on my hard drive at:

\Keil\C51\MON390\Tinim400

MON390 communicates via serial port 1 of this evaluation board. What changes need to be made so that that MON390 communicates via serial port 0 (the Loader) on this evaluation board?

ANSWER

We recommend making all changes to a copy of the Tinim400 project.

1. In Install.a51 in the Tinim400 folder, line 57 change it from:

   $SET (SERIAL = 2)
   

   to:

   $SET (SERIAL = 0)
   

2. Re-link the project, and load the MON390 hex file onto the evaluation board.

You will also need the updated version of the MON390.dll. (See attached files at the end of this article). You will need to replace the previous version of this file, which was located on your hard drive at:

\Keil\C51\BIN\MON390.dll

MORE INFORMATION

• µVision DEBUGGER: Debugging With Maxim/Dallas DS5250 Monitor
• MON390: Redirecting Interrupt Vectors
• MON390: Downloading MON390 Into the Maxim/Dallas TINI Board Using Keil
• ISD51: Does ISD51 Work with the Maxim 390, 5240, or 400?

SEE ALSO

• µVision DEBUGGER: Maxim/Dallas 400 Simulation Support
• ISD51: Does ISD51 Work with the Maxim 390, 5240, or 400?
• C51: Maxim 390 Math Accelerator Operations
• C51: Configuring Dallas 390 and 400 for Contiguous Mode
• C51: Memory Types for Maxim 390 Contiguous Mode

ATTACHED FILES

Request the files attached to this knowledgebase article.

Last Reviewed: Thursday, February 25, 2021