Precision Measurement Central (3)
Flash for all purposes
It would appear that extensive study of the datasheets is required to fully exploit the galaxy of possibilities offered by the MSC1210 family of microcontrollers. Not so for Elektor readers! In this article you will find everything you need to know to be able to make the best possible use of the 32-kB Flash memory contained in the MSC121x.At first glance the members of the MSC121x family appear to have the usual 8051 memory architecture: up to 64 kBytes of code space (program memory) and the same amount for data (RAM) may be addressed by the core. In accordance with the so called Harvard architecture, there are memory areas for code and data (Figure 1). On closer inspection we see that various types of overlap are possible with the MSC121x. Even if rarely required, these options allow the internal 1-kB RAM to be mapped into the program as well as the data memory. In this article we aim to show how the Flash memory area may be tailored to your exact requirements.
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CAM/CAD data for the PCB referred to in this article is available as a Gerber file. Elektor GREEN and GOLD members can exclusively download these files for free as part of their membership. Gerber files allow a PCB to be produced on an appropriate device available locally, or through an online PCB manufacturing service.
Elektor recommends its business partner Eurocircuits as the company of choice for its own prototypes and volume production in selected cases.