MotionApps 2.0 AVR Studio 5.0 - ATMega 328p Target

By christian_peine2 , 18 December 2011
Forums
SmartMotion® MEMS Motion Sensors

Has anyone ported the umpl code to compile as an ATMega 328p target? Would you be willing to share your project file?

There seem to be a number of pitfalls with this activity.

Thank you!

christian_peine2

14 years 2 months ago

For anyone interested in the outcome of this effort... Motion apps does not appear to work on an ATMega328. Unless someone has any suggestions for compiler settings.

Device: atmega328p
Program: 128578 bytes (392.4% Full)
(.text + .data + .bootloader)
Data: 11516 bytes (562.3% Full)
(.data + .bss + .noinit)

This result was obtained using the following compiler settings:

avr-gcc.exe -funsigned-char -funsigned-bitfields -Os -ffunction-sections -fpack-struct -Wall -c -std=gnu99 -mmcu=atmega328p -MD

Linker settings:

avr-gcc.exe" -Wl,-nostartfiles -mmcu=atmega328p -Wl,-lm -Wl,-lc

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vrmmeh

14 years 2 months ago

@lgreenlee wrote:

For anyone interested in the outcome of this effort... Motion apps does not appear to work on an ATMega328. Unless someone has any suggestions for compiler settings.


MotionApps is pretty bloated, as capable as it is. What about this approach instead, which is admittedly less feature-complete (not to mention still in progress), but maybe more like what you can use?

http://www.i2cdevlib.com/devices/mpu6050

- I2Cdev class .cpp/.h foundation files (basic I2C abstraction)
- MPU6050 class .cpp/.h device files (with straightforward methods for working with each register)
- Working Arduino sketch example

That's all there is to it. The code is WAY smaller than MotionApps, full of Doxygen comments, and much more portable. The DMP functionality isn't there yet, but I'm working on it.
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