Rapid Prototyping with 16/32 bits MCU

Hi Lubin! There's nothing new. I've defended my Master's thesis. IMU project is closed (I hope just temporarily). I'm planning to start new IMU project in a few months and fix one's attention on it only. This time I'm thinking about using 3-Axis Magnetometer from Sparkfun too: http://www.sparkfun.co...

I'm using:

http://www.sparkfun.com/commerce/produc ... cts_id=252

and

http://www.sparkfun.com/commerce/produc ... cts_id=698

How do You think, what's the reason of this behavior?

It looks that:
Lines:

Blue - integrated data complementary filtered
Green - accelerometer X-axis
Red - accelerometer Z-axis
and this color between blue and green - gyroscope Y

The same error appears during using Complementary filter.

OK, Kalman is working, but something's going wrong.
1. IMU can't be longer than 1-2 seconds in near-horizontal position. If it happened figure displays value "-1" and do not move any more. I must to reset dsPIC.

2. There is still drift.

This error appers, just when I'm starting sending data from dsPIC to Matlab (not durring connecting): ??? Attempted to access s_control_pos(1); index out of bounds because numel(s_control_pos)=0. Error in ==> D:\Program Files\MATLAB\R2007b\pic\blocks\RS232_analyzBloc.p>RS232_analyzBloc at 75 Error i...

I've removed integrator block before Kalman, Low Pass filters too and nothing changes. dsPIC still displays value "-1" on figure. I'm using 9600 baud rate because when I'm trying to set faster rate, Matlab displays error durring connection: ??? Attempted to access s_control_pos(1); index out of boun...

Hi Lubin!

Could you to correct my model? I've compiled it, but dsPIC still displays value -1 on figure (via RS-port), durring random move of IMU. Whats wrong?

Hi Lubin!

How to compile the file? I have the following error:

Hi Lubin!

How to use subsystem block "Simplified Kalman for publi" from IMU_Simulation.mdl ??
Where is definied matrix Az, Ts, Kz... ?? How to use it?

Hi Lubin!

Is that possible to use Fuzzy Logic Toolbox and your blockset together in dsPIC?

Dear Lubin,

I've got folowing error when trying to open IMU_Simulation.mdl:

I've updated this post. New pictures.

Hi Lubin! I've created my own method of using gyro and accelerometer to measure tilt. On the begining I was using ADXRS150EB from Analog Devices gyros, but they were failure (manufacturer delivered two times broken units). Now I'm using 2-axial IDG-300 from InvenSense, and MMA7260Q accelerometer fro...

Windows path? I don't know what are you talking about. C30 i installed typically on C:\program files\...

I've got the same problem. When I want to compile Servo_sinus.mdl Matlab displays: . ### Processing Template Makefile: D:\Program Files\MATLAB\R2007b\PIC\dspic\dspic_pic30_gcc.tmf ### Wrapping unrecognized make command (angle brackets added) ### <D:\PROGRA~1\MATLAB\R2007b\bin\win32\gmake> ### in def...

Could You make an example of Interface in LabView available? Something to sending data, receiving and presenting on grapf diagram. I've got evaluate version of LabView 8.5. I have never used it before

Could I request You for an example of Simulink model for transmitting data from PC to dsPIC? I need something simple to transmit data via at least one channel, i.e. thrust from joystick via Simulink to dsPIC using RS-232. Probably I should to use xPC blockset but I don't know how

Hi Lubin!

Is that possible to import data, received using Interface TX-Matlab,
to EXCEL using some simple method?

I must to filtrate signal from IMU gyro (ADXRS150) and accelerometer. Propably I shoul implement Kalman filter, but I don't know how. Filtering is something new for me. Could you help?

I used AVdd - AVss.

Hi Lubin! Could You check connections of pin AN7 and AN3 in your blockset? It's very strange, but when I want to convert AN7 analog input, dsPIC is converting different value than it's real. I checked all connections in my PCB and that value is on pin AN3. Is this possible, AN3 and AN7 are changed p...

Hi! I;m thinking about controling duty cycle of PWM's in my dsPIC using a joystick connected to computer. I'm trying to use yaw, pitch, roll axis and throttle from "joystick" block in "Virtual Reality Toolbox", data should be transfered via RS-232. Is that possible to make it using your blockset Lub...