AN440 Datasheet (Philips) - RAM Loader Program

AN440, RAM Loader Program

www.DataSheet4U.com Philips Semiconductors Microcontroller Products Application note RAM loader program for 80C51 family applications Author: Greg Goodhue The following program allows an 80C51 family microcontroller to load most of its code into a RAM over a serial link after power up and execute out of the RAM for normal operation.

This can allow a final product to have firmware updates done by a simple diskette mailing.

Such a program is often called a “bootstrap loader”.

For this example, it

AN440 Features

* read hex file from serial port. ; Send a message for any errors or ; w