用飞思卡尔GP32单片机实现普通十进制计算器的功能，按键采用4×4键盘，显示采用16×2点阵式字符LCD，键盘符号定义如下：左下角的“<-”表示退格，即删除键，按一次删除LCD的最后一个数字。

LCD的第一行显示运算式，第二行显示运算结果。其他功能同普通计算器相同（只实现加减乘除四则运算功能）。

扩展功能：负数、小数运算。复合运算。连续运算。2进制、8进制运算。

-GP32 with Freescale MCU general metric calculator functions, the use of 4 × 4 button keyboard, display the use of 16 × 2 character dot-matrix LCD, keyboard symbols are defined as follows: the lower-left corner of the " <-"　said backspace, that is, delete the key, according to the last one to delete a digital LCD. LCD shows the first line of expression, the second line shows the results of operations. Other features the same with the ordinary calculator (multiplication and division addition and subtraction only the realization of arithmetic functions). Expansion functions: negative, a small number of computing. Composite operator. Continuous operation. 2 M, 8 M-ary operator.