ABSTRACT

Hosting a Device Programmer This chapter describes how to use the parallel adapter to host a device programmer. In an earlier chapter, you saw how the parallel adapter is used to emulate EPROM/ROM memory. After you have used the emulator to generate the code for a particular microprocessor application, the next step in making the microprocessor circuit run on its own is transferring the developed code into EPROM. To do this, you need an EPROM programmer. If the microcontroller you’re using has its own internal memory, you need a programmer that can handle that particular controller. Commercial device programmers can often program a large number of devices ranging from ordinary EPROMs to PAL and PLA devices to microcontrollers. In this chapter I describe an EPROM programmer, as well as a programmer for the AT89C2051 microcontroller that was used in an application in the previous chapter.