实验三stc15系列单片机内部双通道10位ad转换程序（Experiment three stc15 Series MCU internal double channel 10 bit AD conversion program）.doc

实验三stc15系列单片机内部双通道10位ad转换程序（Experiment three stc15 Series MCU internal double channel 10 bit AD conversion program） /*T8 connects T3 and T2; or T8 meets T3, T7 meets T2; potentiometer potentiometer R36 changes the internal 10 bit AD conversion of 0 and 1 channels of electricity Press Vin0 or Vin1, sampling period 5ms; send AD voltage with Multimeter in T8 (to T6) measurement; according to sixteen, 0 The channel digital quantity is displayed by the LCD (1 lines); the 1 channel digital quantity is displayed by LCD (2 lines); the 0 channel corresponds to the theoretical value on the left 5 digital tube display (1 symbol bit, 2 integer, 2 decimal places); 1 channel corresponding to the theoretical value on the right 5 digital tube display (1 bit, 2 bit integer, decimal 2); 2 of channels need appropriate delay. #include 15f2k.h #include absacc.h #define, u8c, unsigned, char, code//, unsigned, 8 bit character short definition defined in code #define U8 unsigned char / / unsigned 8 bit character type definitions and abbreviations #define U16 unsigned int / / unsigned 16 bit integer abbreviation definition #define, writecmd, XBYTE[0xECFF]//1602 write instruction port address, E positive pulse, a falling edge (A12=0), R/W=A9=0 write, and RS=A8=0 write instructions #define readstate XBYTE[0xEEFF]//1602 read status port address, E positive pulse, high level (A12=0), R/W=A9=1 read, RS=A8=0 read status The #define writedata XBYTE[0xEDFF]//1602 writes the data port address, the E positive pulse has the falling edge (A12=0), the R/W=A9=0 writes, and the RS=A8=1 reads the data #define Displayseg XBYTE[0x7FFF]// digital code segment code latch write port address (A15=0) #define Displaybit XBYTE[0xBFFF]// digital tube bit code latch write port address (A14=0) #define LCD_CLR 0x01 / / DDRAM screen, clear the content is empty, AC=00H #define LCD_MODE 0x38 / / 001DLNF** mode set, DL=1 is 8, N=1 data interface, two line display, F=0 dot matrix character is 5*7 #define LCD_ON 0x0c / / dis