Use of delay in libraries #24
Description
Hi,
I am observing an issue where a thread locks up when a library I want to use in it uses delay(). Here's what I have:
#include "Arduino.h"
#include <TeensyThreads.h>
#include "SSD1327.h"
#define PIN_CS 10
#define PIN_DC 9
#define PIN_RST 6
volatile int count = 0;
void thread_func(int data){
while(1){
count += data;
delay(250);
}
}
void draw(int arg){
SSD1327 disp(PIN_CS, PIN_DC, PIN_RST);
disp.init(); // <----------------------------------------Thread hangs in here
while(1){ //Draw
disp.clearBuffer();
disp.drawString(3, 8, count, 0xF, 16);
disp.writeFullBuffer();
delay(25);
}
}
void setup() {
Serial.begin(115200);
threads.setSliceMillis(1);
threads.addThread(thread_func, 1);
threads.addThread(draw, 0, 8704);
}
void loop() {
}
And then in the SSD1327 library:
void SSD1327::init() {
pinMode(_cs, OUTPUT);
pinMode(_dc, OUTPUT);
pinMode(_rst, OUTPUT);
SPI.setDataMode(SPI_MODE0);
SPI.setBitOrder(MSBFIRST);
SPI.setClockDivider(SPI_CLOCK_DIV2);
SPI.begin();
digitalWrite(_rst, HIGH); //Reset display
Serial.println("one");// <---------------------------------------- This is reached
delay(100);
Serial.println("two");// <---------------------------------------- This isn't reached
digitalWrite(_rst, LOW);
delay(100);
digitalWrite(_rst, HIGH);
delay(100);
initRegs();
}
I'd be thankful for any pointers on what I'm doing wrong.
Thanks!