rogram has a hex to decimal conversion routine, a decimal to ASCII converter, and a 4x40 LCD driver

Hex文件是由一行行符合Intel HEX文件格式的文本所构成的ASCII文本文件。在Intel HEX文件中，每一行包含一个HEX记录。-Hex file is an ASCII text file in Intel HEX file format text with lines. Intel HEX file, each line contains one HEX record.