Hi to all!
Our project consists out of two functions (PWM + display) and we are using the ATmega 2560.
Running PWM and display seperatly works.
However putting PWMInit and TFTInit together doesn´t work and apparently loop is not executed...
We changed the order of functions and many other things...
When commenting out PWMInit it works so maybe you guys know any reason for that?
Appreciate any help!!
Best wishes from Germany,
Phil
#include <SPI.h>
#include <TFT.h>
void TFTinit();
void TFToutput(char* output,int Size,char C,int X, int Y);
void PWMinit();
#define CS 22
#define RESET 23
#define DC 24
TFT screen = TFT(CS, DC, RESET);
void setup() {
pinMode(40,INPUT);
pinMode(41,OUTPUT);
TFTinit();
pinMode(11,OUTPUT); //set PWM Pin as output
// PWMinit(); //initialize PWM
}
void loop() {
digitalWrite(41,HIGH);
TFToutput("hello",3,'j',0,0);
}
// initialize display
void TFTinit(){
screen.begin();
screen.background(0,0,0);
screen.setTextSize(4);
screen.stroke(0,0,255);
screen.text("Mind-",10,20);
screen.text("Racing",10,70);
}
// output,size, erase yes/no,x Pos, y Pos
void TFToutput(char* output,int Size,char C,int X, int Y){
if (C=='j'){
screen.background(0,0,0);
screen.setTextSize(Size);
screen.text(output,X,Y);
}
if (C=='n'){
screen.setTextSize(Size);
screen.text(output,X,Y);
}
}
void PWMinit(){
noInterrupts(); // initially deactivating all interrupts
TCCR1A=0; // set TimerCounter 1 Control Register A to zero
TCCR1B=0; // set TimerCounter 1 Control Register B to zero
TCNT1=34286; // initialize TimerCounter 1 to zero
OCR1A=31250; // set Output Compare Register 1A; 0,5*(16.000.000 Hz / 256) = 31250
TCCR1A|=(1<<COM1A1); // Compare Output Mode, Fast PWM: inverting mode (Bit 7)
TCCR1A|=(1<<COM1A0); // Compare Output Mode, Fast PWM: inverting mode (Bit 6)
TCCR1A|=(1<<WGM10); // set WGMn0(PWMn0) to 1 for Mode: 5 Fast PWM, 8-bit; TOP:0x00FF,Update of OCRnX at Bottom; TOVnFlag Set on TOP (Bit 0)
TCCR1B|=(1<<CS12); // set prescaler to 256 (Bit 2)
TCCR1B|=(1<<WGM12); // set WGMn2(CTCn) to 1 for Mode: 5 Fast PWM, 8-bit; TOP:0x00FF,Update of OCRnX at Bottom; TOVnFlag Set on TOP (Bit 3)
TIMSK1|=(1<<OCIE1A); // activate Timer Compare Interrupt
interrupts(); // activate all interrupts
}