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The µC/CPU module regroups the processor's hardware-dependent code. µC/CPU includes many ports for all the different CPU architectures Micriµm supports. You must therefore used the port corresponding to your specific CPU. The complete µC/CPU documentation can be found here. 

The µC/LIB module is the Micriµm run-time library, implementing the most common standard library functions, macros, and constants. The complete µC/LIB documentation can be found here.

The µC/TCP-IP stack is a compact, reliable, high-performance TCP/IP protocol stack which provide the socket to the application layer. The complete µC/TCP-IP  documentation can be found here.

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Optionally, it is possible to use DNS services to connect to a SMTP Server. In that scenario, the µC/DNSc module must be included and properly initialized. The µC/DNSc module is a distributed directory service for internet resources. It enables internet resources (such as servers) to be referenced by names (e.g. ‘www.micriumweston-embedded.com’) instead of their IP addresses, that are meaningless, hard to remember, and sometimes changing over time.The complete µC/DNSc documentation can be found here.

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µC/SMTPc can be downloaded from the Micrium customer portal as all the other required modules. The distribution package includes the full source code and documentation. 

Depending if you bought a package or individual components, either you would find uC/SMTPc source code with the µC/TCP-IP package or you would have to download the µC/SMTPc component from the customer portal.

You can log into the Micrium customer portal at the address below to begin your download (you must have a valid license to gain access to the file):

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