warning: left shift count >= width of type [-Wshift-count-overflow]

tarkanfes · February 7, 2021, 11:02am

pls help .
how can I fix that ? ::::

Arduino: 1.8.13 (Windows 7), Board: "Arduino Uno"

In file included from C:\Users\FESGOLD\Desktop\bl\bl.ino:6:0:

C:\Users\FESGOLD\Documents\Arduino\libraries\MPU6050/MPU6050_6Axis_MotionApps20.h: In member function 'uint8_t MPU6050::dmpGetAccel(int32_t*, const uint8_t*)':

C:\Users\FESGOLD\Documents\Arduino\libraries\MPU6050/MPU6050_6Axis_MotionApps20.h:580:31: warning: left shift count >= width of type [-Wshift-count-overflow]

data[0] = ((packet[28] << 24) + (packet[29] << 16) + (packet[30] << 8) + packet[31]);

^~

C:\Users\FESGOLD\Documents\Arduino\libraries\MPU6050/MPU6050_6Axis_MotionApps20.h:580:52: warning: left shift count >= width of type [-Wshift-count-overflow]

data[0] = ((packet[28] << 24) + (packet[29] << 16) + (packet[30] << 8) + packet[31]);

^~

C:\Users\FESGOLD\Documents\Arduino\libraries\MPU6050/MPU6050_6Axis_MotionApps20.h:581:31: warning: left shift count >= width of type [-Wshift-count-overflow]

data[1] = ((packet[32] << 24) + (packet[33] << 16) + (packet[34] << 8) + packet[35]);

^~

C:\Users\FESGOLD\Documents\Arduino\libraries\MPU6050/MPU6050_6Axis_MotionApps20.h:581:52: warning: left shift count >= width of type [-Wshift-count-overflow]

data[1] = ((packet[32] << 24) + (packet[33] << 16) + (packet[34] << 8) + packet[35]);

^~

C:\Users\FESGOLD\Documents\Arduino\libraries\MPU6050/MPU6050_6Axis_MotionApps20.h:582:31: warning: left shift count >= width of type [-Wshift-count-overflow]

data[2] = ((packet[36] << 24) + (packet[37] << 16) + (packet[38] << 8) + packet[39]);

^~

C:\Users\FESGOLD\Documents\Arduino\libraries\MPU6050/MPU6050_6Axis_MotionApps20.h:582:52: warning: left shift count >= width of type [-Wshift-count-overflow]

data[2] = ((packet[36] << 24) + (packet[37] << 16) + (packet[38] << 8) + packet[39]);

^~

C:\Users\FESGOLD\Documents\Arduino\libraries\MPU6050/MPU6050_6Axis_MotionApps20.h: In member function 'uint8_t MPU6050::dmpGetQuaternion(int32_t*, const uint8_t*)':

C:\Users\FESGOLD\Documents\Arduino\libraries\MPU6050/MPU6050_6Axis_MotionApps20.h:604:30: warning: left shift count >= width of type [-Wshift-count-overflow]

data[0] = ((packet[0] << 24) + (packet[1] << 16) + (packet[2] << 8) + packet[3]);

^~

C:\Users\FESGOLD\Documents\Arduino\libraries\MPU6050/MPU6050_6Axis_MotionApps20.h:604:50: warning: left shift count >= width of type [-Wshift-count-overflow]

data[0] = ((packet[0] << 24) + (packet[1] << 16) + (packet[2] << 8) + packet[3]);

^~

C:\Users\FESGOLD\Documents\Arduino\libraries\MPU6050/MPU6050_6Axis_MotionApps20.h:605:30: warning: left shift count >= width of type [-Wshift-count-overflow]

data[1] = ((packet[4] << 24) + (packet[5] << 16) + (packet[6] << 8) + packet[7]);

^~

C:\Users\FESGOLD\Documents\Arduino\libraries\MPU6050/MPU6050_6Axis_MotionApps20.h:605:50: warning: left shift count >= width of type [-Wshift-count-overflow]

data[1] = ((packet[4] << 24) + (packet[5] << 16) + (packet[6] << 8) + packet[7]);

^~

C:\Users\FESGOLD\Documents\Arduino\libraries\MPU6050/MPU6050_6Axis_MotionApps20.h:606:30: warning: left shift count >= width of type [-Wshift-count-overflow]

data[2] = ((packet[8] << 24) + (packet[9] << 16) + (packet[10] << 8) + packet[11]);

^~

C:\Users\FESGOLD\Documents\Arduino\libraries\MPU6050/MPU6050_6Axis_MotionApps20.h:606:50: warning: left shift count >= width of type [-Wshift-count-overflow]

data[2] = ((packet[8] << 24) + (packet[9] << 16) + (packet[10] << 8) + packet[11]);

^~

C:\Users\FESGOLD\Documents\Arduino\libraries\MPU6050/MPU6050_6Axis_MotionApps20.h:607:31: warning: left shift count >= width of type [-Wshift-count-overflow]

data[3] = ((packet[12] << 24) + (packet[13] << 16) + (packet[14] << 8) + packet[15]);

^~

C:\Users\FESGOLD\Documents\Arduino\libraries\MPU6050/MPU6050_6Axis_MotionApps20.h:607:52: warning: left shift count >= width of type [-Wshift-count-overflow]

data[3] = ((packet[12] << 24) + (packet[13] << 16) + (packet[14] << 8) + packet[15]);

^~

C:\Users\FESGOLD\Documents\Arduino\libraries\MPU6050/MPU6050_6Axis_MotionApps20.h: In member function 'uint8_t MPU6050::dmpGetGyro(int32_t*, const uint8_t*)':

C:\Users\FESGOLD\Documents\Arduino\libraries\MPU6050/MPU6050_6Axis_MotionApps20.h:637:31: warning: left shift count >= width of type [-Wshift-count-overflow]

data[0] = ((packet[16] << 24) + (packet[17] << 16) + (packet[18] << 8) + packet[19]);

^~

C:\Users\FESGOLD\Documents\Arduino\libraries\MPU6050/MPU6050_6Axis_MotionApps20.h:637:52: warning: left shift count >= width of type [-Wshift-count-overflow]

data[0] = ((packet[16] << 24) + (packet[17] << 16) + (packet[18] << 8) + packet[19]);

^~

C:\Users\FESGOLD\Documents\Arduino\libraries\MPU6050/MPU6050_6Axis_MotionApps20.h:638:31: warning: left shift count >= width of type [-Wshift-count-overflow]

data[1] = ((packet[20] << 24) + (packet[21] << 16) + (packet[22] << 8) + packet[23]);

^~

C:\Users\FESGOLD\Documents\Arduino\libraries\MPU6050/MPU6050_6Axis_MotionApps20.h:638:52: warning: left shift count >= width of type [-Wshift-count-overflow]

data[1] = ((packet[20] << 24) + (packet[21] << 16) + (packet[22] << 8) + packet[23]);

^~

C:\Users\FESGOLD\Documents\Arduino\libraries\MPU6050/MPU6050_6Axis_MotionApps20.h:639:31: warning: left shift count >= width of type [-Wshift-count-overflow]

data[2] = ((packet[24] << 24) + (packet[25] << 16) + (packet[26] << 8) + packet[27]);

^~

C:\Users\FESGOLD\Documents\Arduino\libraries\MPU6050/MPU6050_6Axis_MotionApps20.h:639:52: warning: left shift count >= width of type [-Wshift-count-overflow]

data[2] = ((packet[24] << 24) + (packet[25] << 16) + (packet[26] << 8) + packet[27]);

^~

C:\Users\FESGOLD\Desktop\bl\bl.ino: At global scope:

bl:60:51: error: expected unqualified-id before '/' token

volatile bool mpuInterrupt = false; /

^

exit status 1

expected unqualified-id before '/' token

This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.

Ballscrewbob · February 7, 2021, 2:29pm

@tarkanfes

Your topic was Moved to it's current location / section as it is more suitable.

Could you also take a few moments to Learn How To Use The Forum.

Other general help and troubleshooting advice can be found here.
It will help you get the best out of the forum in the future.

anon73444976 · February 7, 2021, 2:49pm

pls help .
how can I fix that ? ::::

Cast the operands to a more appropriate type, like uint32_t

david_2018 · February 7, 2021, 2:52pm

Do you have the latest version of the MPU6050 library? That appears to have been corrected, so the code currently casts the packet[] references to uint32_t

data[0] = (((uint32_t)packet[28] << 24) | ((uint32_t)packet[29] << 16) | ((uint32_t)packet[30] << 8) | packet[31]);

system · June 7, 2021, 2:52pm

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