Matrix user forums

Ben ,

I have a big question: where can I find information about the interrupt vectors? Is that a compiler's situation?
dsPics have different vector names? I saw other questions about UART interrupts and seems to be answered , but those answers applied to my dspic does not seems to work.
By other ...

Hi Ben
thank for your help, but is not working.
I am using the custom code for RX interrupt


Enable code :
IEC0bits.U1RXIE = 1;


Handler code:

void _ISR _U1RXInterrupt(void)
{
if (IFS0bits.U1RXIF=1)
{
FCM_dummy();// call selected macro
IFS0bits.U1RXIF = 0;
}
}

Also I have tried

void ...

Hi Guys
Does anyone have two dsPic microcontrollers connected with USART that can test the files I provided?
Just to check out what is missing or wrong with the custom interrupt

Thanks

Sorry for the delay but I was trying to solve another problems and
this particular one, Basically the code provided by Ben is compiling
but in the real world the interrupt is not been produced, (led ON)
no way Ican make it work .
The only clue I think would be is that in the message file says ...

Thanks Martin, I actually was wondering if rising, falling and both edges were available in all ports , I am guessing in just some, from some microcontrollers, I didn't taught this macro depends on hardware
Is this right ??

I am using Flowcode v5.5.2.1 and trying to set up a rising edge interrupt in any port in a dsPIC30f4012 or dsPIC30f4013 and flowcode just allow me to select both edges or none.
Is there something I am missing??

That is perfect, thanks !!

Sorry I've Been Away in a job for some weeks,

Any idea of how can this be solved?
definitely the code I attached should work, no servo or timers

I am really lost in this area of C code

Thanks

I also want to control a BLDC motor but directly from dsPIC, any example code there??
Later on I will implement a position control with a quadrature sensor in the motor
and after that a PID closed loop , I will post the results. this would be very interesting for robot implementation.

Anyone ...

Hi Ben,
Where is the conflict? the Uart block uses also timers?

I did an example without the timer and servo, still not working

Here is the file with no servo block

uart tx test.fcf_pic16

I get the same error than before
Is there a variable I need to define before?
In an example of activating ...

Hi Ben, Thanks for the tip, but still doesn not compile.
Here is a test file I did to probe it

servomotor test.fcf_pic16

I get this message from compiler

servomotor test.c: At top level:
servomotor test.c:1235: error: redefinition of '_T2Interrupt'
servomotor test.c:1159: error: previous ...

I am having a similar problem with dsPIC30f4012 for end of transmitting interrupt

enable code :

IEC0bits.U1TXIE = 1;

handler code:

//if (IFS0bits.U1TXIF=1) (is this the same than next line?)
if (IFS0 & (1 <<U1TXIF))
{
FCM_UARTTX_INT();// call selected macro
IFS0bitsU1TXIF = 0;
}

the error ...

Now is compiling, thanks !!!

I think I know the problem: is very similar to http://www.matrixmultimedia.com/mmforums/viewtopic.php?f=29&t=8713&p=26296&hilit=undeclared#p26296

I guess the solution also may be similar, I was looking in the code but my problem is I've got lost, there is a definition in flowcode that is missing ...

Hi Mika
you are right, I made a mistake with C1CTRL = (C1CTRL || 1024), the weird thing is that with that setting my Baudrate is fixed!!, I tried erasing that block just to check and the block with bit 10 = 1, solves the baudrate problem (????!!!!)

Hi ,

I just found the Baud rate generated setting external CAN is wrong because the CRANCKS bit (11) of C1CTRL register is = 0 instead of 1

to solve this I just add C code :

C1CTRL = (C1CTRL || 1024) ;


I am using dsPIC version on dsPIC30F4012 not sure if applies yo other devices

Cheers

Hello ,
Any feedback ?

Hi, I am having a problem compiling a simple ADC to servomotor code in V5 dsPIC latest release (V5.5.2.1), I re-made the code in V4 and compiles (is very short).


I checked

http://www.matrixmultimedia.com/mmforums/viewtopic.php?f=29&t=10077#p31579

and

http://www.matrixmultimedia.com ...

I am using a lot of arrays, normally that is a very good approach, also I use the variables like DataIn = BYTE [j] where i, j are variables that can be managed by other formulas.

the facts:
If I have a flowchart that sends, lets say, one package of CAN every second with the function DELAY or with TIMER, the measured answer is very accurate (0,002 [ms]).
If I send that communication to other microcontroller, and using the detection of a CAN package as a trigger to send its ...

It's working !!, so was the flag I didn't turn off
Thank you !!
I wonder why this is not included in the Timer disable part of the code.

Thanks Dazz, As I post before the code works as explained in hardware, is a weird behavior , Does this happen just with CAN bus?
It should restart the timer each time detects an incoming CAN package and gives the answer with a certain delay after reception, I don't want to put a Delay block ...

Something tells me the issue does not relate to the CAN bus communication
I did other example not using custom C code and I get the same behavior I couldn't make it work in simulation, but in hardware the Rx led turns on and off in half second the first time and then turns on in almost unnoticeable ...

Thanks
I moved the topic to

http://www.matrixmultimedia.com/mmforum ... 46&t=11531

Hi, I am working in a code were inside a custom interuption (produced by a
external source) I have a timer interrupt that works fine the first time.
the problem is that from the second time the timer is activated, the timer
interrupt is activated but the interruption is activated inmediatly ...