Matrix user forums

I can not find drivers for ECIO ARM for Windows 7 64bit to download. In the driver package there is 64bit drivers for 28 pin and 40 pin... but ARM... nope.

Only exe-file in the folder is "ECIOARM_Driver_Installer.exe".

/Jesper

Hi I'm still struggling with my compass... :( Could someone give me a hint how to do the: Receive - data byte 0 Receive - data byte 1 Receive - data byte 2 coding? I looked at the examples of I2C but I was not any smarter... :oops: I would be pleased if anybody could give me a helping hand. Tanks

Thanks John Sorry but I did not get it to work. I changed the values I could think had any similarity between the two modules. But no... Maybe I have to buy the same module as yours. A bit more expensive but has the tilt compensation. In Bens suggestion I'm not sure how to code the: Receive - data b...

Thanks for your info Ben.
I have tried to make a code of your recommendations but without success. Is the attached code anything near how an I2C communication should look like?

I struggle with getting my compass module GY-271, based on HMC5883L work. This is my first attempt to communicate via I2C but without success. Is there anyone here on the forum who has a working code for this module or know more than me how to code I2C? I use the "40 pin ARM 7 ECIO", but if someone ...

I'm interesting in using a MIAC in a project at my work. Since I'm used to program in Flowcode. Thing is that all other equipment in the project will run on the industrial standard 24V. I noticed that MIAC power supply voltage is 12-16V. Will the MIAC unit blow if I feed it with 24V? If so, I have t...

Think I solved it. I made some changes in the component file ARM_GPS.c. I more or less copied the lines for reading "GroundSpeed" and changed some values. Need to test it more.

Jeppe

Thanks for your support. I will have a look at the file in FL for dsPIC to see if I can modify it for ARM. I know there is a workaround to calculate the CourceOverGround by using last and previous location data in a trigonometry function. But since the GPS data already has this iformation it would b...

Need to add that I use FL for ARM v4.3.
I saw in the free version of ARM v5 that a "Course Over Ground" has been added.
(My boss don't allow me to buy v5 )

Jeppe

Hi I'm using the GPS component in a project and I use the Longitude and Latitude data but I also need the heading data. In the Properties of the component I can select those data. Is_Data_Valid Read_Longitude Read_Latitude Read_Altitude Read_GroundSpeed Read_NumberOfSatellites Read_UTC_Time Read_UTC...

I just found that there is a separate FLOAT function for using modulo with Float numbers.

fmod( x , y ) - floating point modulus (remainder of x divided by y)

Problem solved.

Thanks Benj. Regarding the MOD function. I found out that I can compile if I use INT-variables, but not with FLOAT. If I try compile <b = (v+360) MOD 360>, (v and b are FLOAT-variables) I get this: Launching the compiler... C:\Program Files\Matrix Multimedia\Flowcode ARM V4\Tools\MX_bats\arm7comp.ba...

I also can't compile the MOD (modulo) function.

Hi I put a square root function into a calculation of float point numbers. It works in simulation mode but it fails when I try to compile and download it. I can read those lines. sqrt_fail.o: In function `main': sqrt_fail.c:(.text+0x9f0): undefined reference to `float32_sqrt' I use Flowcode ARM v.4....

Thanks
It looks like the problem exists in the "create file" macro. If I create a blank file on my PC and store it on the SD card, I can then write to that file and also open it on my PC.

Hi I'm trying to learn how to store a log file in to a SD-card. All is fine until I want to check the file on my PC (Win7). When I open the card I can see the file in explorer but if I try open the file my computer says that it can't find the file. The size of the file is 1kb so some information sho...

Got it to work now. Don't know what I did wrong.
If I want the data to stay in the memory after power loss. So I can re-read the last stored values up on restart.

As a sailor and programmer (LabView) I had an idea of building an autopilot model sailing boat. Since I will use a pretty small yacht of about one meter long, a PC with a Labview application would be too big for the boat. So I started to look in to the world of microcontrollers. I'm to lacy to start...

I't seems to work except the write function. Can't get it to change the value in an address. Every time I read I get the value of (byte)147. I tried many different addresses but still the same value. I attached the program I made to test the function. Am I doing something wrong?

Tanks!
Think I'm little to much newbie in C (the reason I choose FC) to figure out how to implement those functions. A simple (if there are one) sample code would help me.

I cant find the EEPROM icon in the menu in FlowCode ARM v4. The bitmap picture is in the Component folder "ARM_EEPROM.bmp" but no c-file or ocx file are found there.

Thanks it works, like you suggested in your last post.
I only had some permission issues with Win7 not allowing to change files in program files folder. Had to move the file to my desktop, make the changes, and move it back.

Not that I need it, but would it be possible to use 16bit resolution?

Hi
I can't get PWM(0) on my ECIOARM to work in 10bit it is still in 8bit resolution even when I use "SetDutyCycle10bit".
I have to increase SetDutyCycle10bit (INT) by 8 to get a change in pulse length. Is it suppose to be like this or am I missing something?

I have a ECIO-ARM that I want to use to collect some analouge values and transfer them into a Labview application.
Is this possible? I can't find any Serial USB in the FC4-ARM.