各位大神好，我是一个加拿大的电子系的留学生，我有一个实验需要写一个MPLAB的单机片，我硬件已连接显示屏，keypad，LM60温度感应器，我用的IC是p24HJ128GP502，我的C语言编程不是太好，所以请各位大神帮帮我吧！它的要求如下：我如何在while loop里添加一下的功能呢？
1. 上电自检。红色LED闪烁三次。好的消息。 2. 显示选项:1)读取，2)保存，3)召回和4)清除。 3. 要求选择按1，读取传感器读数并在LCD上显示读数。 4. 眨了一次。按2保存传感器读数，并确认保存在LCD上。 5. 眨了两次。按3来回忆一个保存的阅读。询问阅读数字。 6. 按4清除不保存的读数。 7. 眨了一次。完成任何选择后，返回到显示选项屏幕。 这是我的代码，我尝试了把它的要求写进去，但都失败。 #include "pic24_all.h" #include <stdio.h>
# define RS_HIGH() (_LATB9 = 1) # define RS_LOW() (_LATB9 = 0) # define CONFIG_RS() CONFIG_RB9_AS_DIG_OUTPUT()
# define RW_HIGH() (_LATB13 = 1) # define RW_LOW() (_LATB13 = 0) # define CONFIG_RW() CONFIG_RB13_AS_DIG_OUTPUT()
# define E_HIGH() (_LATB14 = 1) # define E_LOW() (_LATB14 = 0) # define CONFIG_E() CONFIG_RB14_AS_DIG_OUTPUT() # define LED (_LATB14)
# define LCD4O (_LATB5) # define LCD5O (_LATB6) # define LCD6O (_LATB7) # define LCD7O (_LATB8) # define LCD7I (_RB8)
# define CONFIG_LCD4_AS_INPUT() CONFIG_RB5_AS_DIG_INPUT() # define CONFIG_LCD5_AS_INPUT() CONFIG_RB6_AS_DIG_INPUT() # define CONFIG_LCD6_AS_INPUT() CONFIG_RB7_AS_DIG_INPUT() # define CONFIG_LCD7_AS_INPUT() CONFIG_RB8_AS_DIG_INPUT()
# define CONFIG_LCD4_AS_OUTPUT() CONFIG_RB5_AS_DIG_OUTPUT() # define CONFIG_LCD5_AS_OUTPUT() CONFIG_RB6_AS_DIG_OUTPUT() # define CONFIG_LCD6_AS_OUTPUT() CONFIG_RB7_AS_DIG_OUTPUT() # define CONFIG_LCD7_AS_OUTPUT() CONFIG_RB8_AS_DIG_OUTPUT()
#define GET_BUSY_FLAG() (LCD7I)
//Pulse the E clock, 1 us delay around edges for //setup/hold times void pulseE(void) { DELAY_US(1); E_HIGH(); DELAY_US(1); E_LOW(); DELAY_US(1); }
uint8_t u8_wdtState; if (u8_CheckBusy) { RS_LOW(); //RS = 0 to check busy // check busy configBusAsInLCD(); //set data pins all inputs u8_wdtState = _SWDTEN; //save WDT enable state CLRWDT(); //clear the WDT timer _SWDTEN = 1; //enable WDT to escape infinite wait do { E_HIGH(); DELAY_US(1); // read upper 4 bits u8_BusyFlag = GET_BUSY_FLAG(); E_LOW(); DELAY_US(1); pulseE(); //pulse again for lower 4-bits } while (u8_BusyFlag); _SWDTEN = u8_wdtState; //restore WDT enable state } else { DELAY_MS(10); // don't use busy, just delay } configBusAsOutLCD(); if (u8_DataFlag) RS_HIGH(); // RS=1, data byte else RS_LOW(); // RS=0, command byte outputToBusLCD(u8_Cmd >> 4); // send upper 4 bits pulseE(); if (u8_Send8Bits) { outputToBusLCD(u8_Cmd); // send lower 4 bits pulseE(); } } // Initialize the LCD, modify to suit your application and LCD void initLCD() { DELAY_MS(50); //wait for device to settle writeLCD(0x20,0,0,0); // 4 bit interface writeLCD(0x28,0,0,1); // 2 line display, 5x7 font writeLCD(0x28,0,0,1); // repeat writeLCD(0x06,0,0,1); // enable display writeLCD(0x0C,0,0,1); // turn display on; cursor, blink is off writeLCD(0x01,0,0,1); // clear display, move cursor to home DELAY_MS(3); } //Output a string to the LCD void outStringLCD(char *psz_s) { while (*psz_s) { writeLCD(*psz_s, 1, 1,1); psz_s++; } } #define C0 _RB12 #define C1 _RB2 #define C2 _RB3 #define C3 _RA2 static inline void CONFIG_COLUMN() { CONFIG_RB12_AS_DIG_INPUT(); ENABLE_RB12_PULLUP(); CONFIG_RB2_AS_DIG_INPUT(); ENABLE_RB2_PULLUP(); CONFIG_RB3_AS_DIG_INPUT(); ENABLE_RB3_PULLUP(); CONFIG_RA2_AS_DIG_INPUT(); ENABLE_RA2_PULLUP(); } #define R0 _RA3 #define R1 _RB4 #define R2 _RA4 #define CONFIG_R0_DIG_OUTPUT() CONFIG_RA3_AS_DIG_OUTPUT() #define CONFIG_R1_DIG_OUTPUT() CONFIG_RB4_AS_DIG_OUTPUT() #define CONFIG_R2_DIG_OUTPUT() CONFIG_RA4_AS_DIG_OUTPUT() void CONFIG_ROW() {
#define NUM_ROWS 3 #define NUM_COLS 4 const uint8_t au8_keyTable[NUM_ROWS][NUM_COLS] = { {'1', '4', '7', '*'}, {'2', '5', '8', '0'}, {'3', '6', '9', '#'} }; #define KEY_PRESSED() (!C0 || !C1 || !C2 || !C3) //any low #define KEY_RELEASED() (C0 && C1 && C2 && C3) //all high
//#define temp_c #define VREF 3.3 int main (void) { configBasic(HELLO_MSG); /** PIO config ******/ configKeypad(); /** Configure the Timer */ configTimer3(); configControlLCD(); //configure the LCD control lines initLCD(); //initialize the LCD uint16_t u16_adcVal; float f_adcVal; char buff[50]; CONFIG_RA0_AS_ANALOG(); configADC1_ManualCH0(RA0_AN, 31, 0); while (1) { // u16_adcVal = convertADC1(); //get ADC value // f_adcVal = u16_adcVal; // f_adcVal = f_adcVal/1024.0 * VREF; //convert to float in range 0.0 to VREF // printf("ADC input: %4.2f V (0x%04x),T=%7,4fc\n", (double) f_adcVal, u16_adcVal); //sprintf(buff, "ADC input: %4.2f V (0x%04x),T=%7,4fc\n", (double) f_adcVal, u16_adcVal); // writeLCD(0x01,0,1,1); // outStringLCD(buff); } { } // end while (1) }
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