/*
* Simply a function that prints out a standard welcome message on startup.
*/
void welcome(void){
Lcd_Clear();
Lcd_Set_Cursor(1,1);
Lcd_Write_String(w0);
Lcd_Set_Cursor(2,1);
Lcd_Write_String(w1);
delays(2);
}
void LCD_init(void){
Lcd_Init();
Lcd_Clear();
Lcd_Set_XY(0,0);
Lcd_Write_String(0,0,"Rw_ECG");
Lcd_Write_String(0,1,"Hello! Your heart rate is: ");
Lcd_Write_String(0,4,"---");
}
/*This function takes in 2 arguments, corresponding to what should be displayed on
* the 1st and 2nd lines of the LCD screen.
* title_item selects which string to display as the title to the menu position.
* value_item selects which string to display while changing the submenu item value.
*/
void LCD_disp(int title_item, int value_item)
{
char string[LCDL];
Lcd_Clear();
Lcd_Set_Cursor(1,1);
Lcd_Write_String(menutitle[title_item]);
//Checks if in Manual or Factory mode
if (menu_ref_1<=1){ //possibly need to change order of phrases to
//include a check for user assist mode, in which case
//we check if menu_ref_1 <= 2
// Leo: we don't need to, it does it automatically
if (menu_ref_2<=2){
Lcd_Set_Cursor(2,1);
sprintf(string, "%s%d%", stringtab[value_item],values[value_item]);
Lcd_Write_String(string);
}
//Statistics
//Average: takes the mean of values stored in the IR array
else if(menu_ref_2==7){
// unsigned char i;
// int total;
// int average;
// for (i=values[IRSAMPE];i>0;i--){
// total=+IR_samps[i]; //IR_samps defines the array not yet present
// }
// values[IRAVG]=total/values[IRSAMPE];
// sprintf(string,"%s%d", stringtab[IRAVG], values[IRAVG]);
// Lcd_Write_String(string);
}
else {
Lcd_Set_Cursor(2,1);
sprintf(string, "%s%d", stringtab[value_item],values[value_item]);//no % symbol
Lcd_Write_String(string);
}
}
//To do: Semi auto should have a display of cm from tilt
//#############################
}
void main(void)
{
unsigned int a;
char *ptr;
char str[3] = "LCD";
char str2[] = "MPLAB C18";
TRISD = 0x00;
while(1)
{
Lcd_Clear();
Lcd_Set_Cursor(1,1);
ptr = &str[0];
Lcd_Write_String(ptr);
Lcd_Set_Cursor(2,1);
ptr = &str2[0];
Lcd_Write_String(ptr);
Delay10KTCYx(200);
Lcd_Clear();
Lcd_Set_Cursor(1,1);
Lcd_Write_String("Developed By");
Lcd_Set_Cursor(2,1);
Lcd_Write_String("Faintree");
Delay10KTCYx(200);
Lcd_Clear();
Lcd_Set_Cursor(1,1);
Lcd_Write_String("something");
for(a=0; a<15; a++)
{
Delay10KTCYx(30);
Lcd_Shift_Left();
}
for(a=0; a<15; a++)
{
Delay10KTCYx(30);
Lcd_Shift_Right();
}
Lcd_Clear();
Lcd_Set_Cursor(2,1);
Lcd_Write_Char('e');
Lcd_Write_Char('S');
Delay10KTCYx(300);
}
}
////////////////////////////////////////////////////////////
// MAIN
////////////////////////////////////////////////////////////
void main(void) {
// Configura el Oscilador interno a 8Mhz
OSCCONbits.IRCF = 0b111;
// InitAllLEDs
PORTA = 0x00;
TRISAbits.TRISA0 = 1; // 1 input
TRISAbits.TRISA1 = 1; // 1 input
TRISAbits.TRISA2 = 1; // 1 input
TRISAbits.TRISA3 = 1; // 1 input // FOR ADC
TRISAbits.TRISA4 = 1; // 1 input
TRISAbits.TRISA5 = 1; // 1 input // ICSP VPP
TRISAbits.TRISA6 = 1; // 1 input // OSCILATOR
TRISAbits.TRISA7 = 1; // 1 input // OSCILATOR
PORTB = 0x00;
//TRISB = 0x00; // 0x00 all as output
TRISBbits.TRISB0 = 0; // 0 output
TRISBbits.TRISB1 = 0; // 0 output
TRISBbits.TRISB2 = 0; // 0 output // FOR LCD_D4
TRISBbits.TRISB3 = 0; // 0 output // FOR LCD_D5
TRISBbits.TRISB4 = 0; // 0 output // FOR LCD_D6
TRISBbits.TRISB5 = 0; // 0 output // FOR LCD_D7
TRISBbits.TRISB6 = 0; // 0 output // PGD (1 is value on POR) & LCD_RS
TRISBbits.TRISB7 = 0; // 0 output // PGC (1 is value on POR) & LCD_E
//PORTB = 0x00;
initADC();
Lcd_Init();
//CMCON = 0x07;
while(1) {
// INIT ADC CONVERSION
initADCConversion();
while(isADCConversionReady() == 0) {
;
}
int result = getADC10bitResult(); // result = 0-1023
float minValue = 0.0;
float maxValue = 5.0;
float unitValue = (maxValue-minValue)/1024; // 5.0 / 1024
// Si el voltaje alcanza el máximo valor (Vref+) currentValue=5 y si se queda en el mínimo valor (Vref-) currentValue=0.
float currentValue = result * unitValue;
//setBCDsText(ftoa(currentValue, (int *) 0));
//setBCDCharacterNumber(integ);
Lcd_Clear();
Lcd_Set_Cursor(1,1);
Lcd_Write_String(ftoa(currentValue, (int *) 0));
}
}
void LCD_disp(int x, int y)
{
//Probably most important array in commander, note the order
int values[7]={max_speed, pid_gain, max_yaw, ir_samp_e, ir_samp_r, ir_raw, ir_avg};
char string[LCDL];
Lcd_Clear();
Lcd_Set_Cursor(1,1);
Lcd_Write_String(menutitle[x]);
//Display as _string:_value'%'_
sprintf(string, "%s%d%", stringtab[y],values[y]);
Lcd_Set_Cursor(2,1);
Lcd_Write_String(string);
//#############################
}
__interrupt void Timer_A(void)
{
ADC10CTL1 = INCH_7 + ADC10DIV_0; // 选P1.7作为输入
/*
* 设置ADC10工作的一些基本参数
* INCH_10: Input channel select, Selects Channel 10
* ADC10DIV_0: ADC10 Clock Divider Select 0
* 这里面没有显示设置ADC10的时钟，但实际上，因为默认0的时候是其内置时钟信号ADC10OSC，所以是设置了的，要查到它的频率：
*/
ADC10CTL0 = SREF_1 + ADC10SHT_3 + REFON + ADC10ON + REF2_5V;
/*
* 设置ADC10采样的一些基本参数
* select REF: VR+ = VREF+ and VR- = AVSS
* ADC10SHT_3: ADC10 Sample and Hold Time, 64 x ADC10CLKs，这个值意味着什么？
* REFON: ADC10 Reference on， 上面是设置，这里是开启，开启需要30us，所以后面紧接着一句等了5个cycles
* ADC10ON: ADC10 ON，开启ADC10
*/
_delay_cycles(5); // Wait for ADC Ref to settle
ADC10CTL0 |= ENC + ADC10SC; // Sampling and conversion start，开始采样并转换？不是特别理解，是开始工作了的意思吗？
_delay_cycles(100);//这里停下来之后是在干什么？是不是ADC10在这个delay的时候工作？
ADC10CTL0 &= ~ENC;//停止转换
ADC10CTL0 &= ~(REFON + ADC10ON);//关闭REF和ADC10
heartRaw = ADC10MEM;//从ADC10MEM里面取值
//heartC = (unsigned char)(((heartRaw - 673)*423)>>10); //转换成摄氏温度，最后那个运算是移位运算，没仔细查。
heartC = heartRaw;
//UART send
while (!(IFG2&UCA0TXIFG)); // USCI_A0 TX buffer ready?
UCA0TXBUF=heartC;
//到达R波时，亮灯
if (heartC > beatThreshold){
P1OUT = RED_LED; // red LED on
}
else if(heartC < beatThreshold){
P1OUT = 0; // RED LED off
}
//计算heart rate，利用是否inpeak来累加心跳次数
if(heartC > beatThreshold && inpeak == 0){
beatCounter++;
inpeak = 1;
if(beatCounter > 5){
heartRate = 60*500*(beatCounter-1)/counter;
Lcd_Write_Int(0,4,heartRate);
}
else{
Lcd_Write_String(0,4,"---");
}
}
//退出inpeak
else if(heartC < beatThreshold){
inpeak = 0;
}
//10秒之后全部归零，重新计算
if (counter == 5000){
counter = 0;
inpeak = 0;
beatCounter = 0;
}
counter++;
}
