Arduino due vs Uno

system · May 28, 2014, 3:02pm

Hi,
When I run the same sketch on Uno and on due I haven’t the same results.
I think it is due to the bits format (8 vs 32). Is there any solution to adapt uno sketches to arduino Due.
Thanks.

knut_ny · May 28, 2014, 5:33pm

example program ?

system · May 28, 2014, 6:28pm

MPU6050_DMP6

#define OUTPUT_READABLE_YAWPITCHROLL

sensor immovable (same position for all tests)
UNO and DUE, every one repeat same values.
but values are different between UNO and DUE.

for example UNO gives:
ypr -34.54 -4.58 -0.11
but DUE gives :
ypr 2.78 -4.59 -0.24

system · May 29, 2014, 2:25pm

Any help please. thanks

knut_ny · May 29, 2014, 6:51pm

my best tip

github.com/jrowberg/i2cdevlib

MPU6050_DMP6 Example Improvements

opened 08:11PM - 14 Jun 12 UTC

closed 11:22AM - 23 Sep 21 UTC

wolfmanjm

Following up on the fixes from issue #13... In the example as you suggested fi…foCount should be converted to uint16_t. This is important because occasionally, for whatever reason, the fifoCount is more than 42, quite often around 300 which would overflow the 8 bit fifoCount. Related to this, and something that was causing me grief by corruption, there needs to be a check that when/if fifoCount is bigger than expected we do not overflow the fifoBuffer.. I added this check to protect against that. ``` // read FIFO content, make sure we do not overflow our buffer if(fifoCount <= sizeof fifoBuffer) { accelgyro.getFIFOBytes(fifoBuffer, fifoCount); }else{ Serial.print("Trying to read too much FIFO "); Serial.println(fifoCount); accelgyro.resetFIFO(); return; } ``` I think at least one reason for fifoCount being bigger than expected is if something causes the interrupt to be delayed (like a delay(1000)) in the loop. Maybe the fifo could be read in the interrupt handler itself? That would avoid the fifo filling up. Thanks

system · June 3, 2014, 9:05pm

Test with MPUteapot processing. ( Plz see the pic.)
Any idea about what is causing difference between Uno ans Due?
Thanks.

Due vs Uno.bmp (1.14 MB)

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Arduino due vs Uno

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