Hi,
I have a web server running on my Arduino Uno with the ethernet shield and that works fine. but as soon as I have included the RTClib and wire.h the webserver will not show the page anymore. ( my webpage is loaded from the SD card). I have tried using RTClib and wire in a separate sketch and that works fine so what I'm wondering now is the some compatibility issues with using
#include <SPI.h>
#include <Ethernet.h>
#include <SD.h>
#include <Wire.h>
#include "RTClib.h"
those includes together?
I'm also going to add the
#include <Adafruit_MCP23017.h>
#include <Adafruit_RGBLCDShield.h>
at a late stage will I get the same problems then?
Problems with RTC1307 ( RTClib)
Moderators: adafruit_support_bill, adafruit
Please be positive and constructive with your questions and comments.
- adafruit_support_bill
- Posts: 88096
- Joined: Sat Feb 07, 2009 10:11 am
Re: Problems with RTC1307 ( RTClib)
Sounds like you might be running into a memory problem:
Have a look here: http://learn.adafruit.com/memories-of-an-arduino
Have a look here: http://learn.adafruit.com/memories-of-an-arduino
-
- Posts: 34
- Joined: Sun Feb 17, 2013 6:13 pm
Re: Problems with RTC1307 ( RTClib)
Thank you! it was a SRAM issue I guess I tested my code with a MEGA and it worked fine.
- technobly
- Posts: 118
- Joined: Mon Oct 31, 2011 11:06 am
Re: Problems with RTC1307 ( RTClib)
Patrikk, try adding this to your code to get an idea of how close you are getting to being out of memory...
Code: Select all
void setup(void) {
Serial.begin(115200);
displayFreeRam();
}
void loop(void) {
}
// Borrowed from the Adafruit Debug.cpp library
void displayFreeRam(void)
{
extern int __bss_end;
extern int *__brkval;
int free_memory;
if((int)__brkval == 0) {
free_memory = ((int)&free_memory) - ((int)&__bss_end);
}
else {
free_memory = ((int)&free_memory) - ((int)__brkval);
}
Serial.print(F("Free RAM: "));
Serial.print(free_memory);
Serial.println(F(" bytes"));
}
Please be positive and constructive with your questions and comments.