程序介绍：使用同一个IO口进行设置，高字节为按键，低字节为灯，流程中嵌入关系式变化： FCV_COU = FCV_COUNT>>4; FCV_COUNT = FCV_COUNT & 0x0f; 
//** Date: Wednesday, November 21, 2012 20:50:00 //本程序版权所有: ruidan.com #define MX_PIC //Defines for microcontroller #define P16F690 #define MX_EE #define MX_EE_SIZE 256 #define MX_I #define MX_SPI_BCB #define MX_SPI_SDI 4 #define MX_SPI_SDO 7 #define MX_SPI_SCK 6 #define MX_UART #define MX_UART_B #define MX_UART_TX 7 #define MX_UART_RX 5 #define MX_I2C #define MX_MI2C #define MX_I2C_B #define MX_I2C_SDA 4 #define MX_I2C_SCL 6 #define MX_PWM #define MX_PWM_CNT 1 #define MX_PWM_S1 trisc #define MX_PWM_1 5
//Functions #define MX_CLK_SPEED 19660800 #ifdef _BOOC #include <system.h> #endif #ifdef HI_CH_C #include <pic.h> #endif //Configuration data //Internal functions #include "F:\Program Files\Matrix Multimedia\Flowcode V4\FCD\internals.h" //Macro function declarations //Variable declarations char FCV_COUNT; //Macro implementations void main() { //Initialisation ansel = 0; anselh = 0; //Interrupt initialisation code option_reg = 0xC0; //Loop //Loop: While 1 while (1) { //Input //Input: PORT C -> count trisc = trisc | 0xff; FCV_COUNT = portc; //Calculation //Calculation: // count = count>>4 // count = count AND 0x0f FCV_COUNT = FCV_COUNT>>4; FCV_COUNT = FCV_COUNT & 0x0f; //Output //Output: count -> PORT C trisc = 0x00; portc = FCV_COUNT; } mainendloop: goto mainendloop; } void MX_IRRUPT_MACRO(void) { }
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