Does Micro C provide C libraries for [device name]?
Micro C provides library functions and definitions to control basic services of the processor in question (serial port, peripheral control regist ers etc.), but Micro C generally does not provide off-the-shelf drivers for external peripheral devices, or devices not common to all processors of a specific type. There are a few exceptions (ss for processors which do not have a built in serial interface, I2C devices for the 8051), however for the most part, the available devices which can be attached to a microcontroller are simply too numerous and varied. It is therefore up to the user to provide support for external hardware which he wishes to connect to his target platform. This can be done either in pure ‘C’, or with inline assembly language. Micro C does provide “helper” functions in its library (for example, if you wish to develop a “printf” which communicates with an LCD panel, you can take advantage of the existing “format” subroutine in the library to perform all of the formatting
