Matrix user forums

Hello, after some testing with 7seg component on hardware, i found that in order to display a custom character correctly you have to define the status for all segments using output component. For example if we want to display letter 'C' (on a common anode 7seg display), we simply use the output comp...

Hi Benj , thanks for your attention and your help. when you simulated the attached program, did you get a proper 'o' letter and after one second a proper 'F' letter and so on? I think the issue that i am facing in FC6 is that the output state of the pins does not change with the "ClearDigit" compone...

Hi Benj,

you can find attached the FC6 file with a simple program showing letter "o" and after 1 sec the letter "F".

Hello, i was trying to display characters like "C" , "A", "n" using output component and by setting equivalent pins Hi or Low. It is very weird that in FC4 this works fine but not in FC6! Attached pictures show the FC4 components and the connections of the 7seg display in order to display character ...

Hi Benj, i finally managed to implement potentiometers wiper position control therefore i can control the output resistance.


Thank You very much!

Hello , I am trying to control an MCP41010 device. Since it is the first time i am using the SPI communication, is there any example for in flow code for this device? I cannot understand which three pins are supposed to handle the SPI. Is it RC6 and RC7 and what is the third? Thanks in advance George

Hello, On 8-bit PIC the floating point calculations are done using functions. It looks like these functions are being referenced from the main program loop and again from the interrupt. If there is the possibility for you to be inside the function when the interrupt kicks in and calls the function ...

Hi, as i said above everything works as expected. I am wondering if there is or will be any problem with those warnings after compile the program. Serious Warning: Possible sw stack corruption, function 'float32_addsub' called by more than one asynchronous thread (main/Task, interrupt, interrupt low...

Hello LeighM and Benj, thank you very much for your help.

It is now working as expected! I used a slightly different approach from the MOD function but similar to Benj description i managed to have the solution very soon.

Thank you once again!

George

Hi, thanks for your reply! At the moment i have one variable(float) named Time2Finish in the form : 5.87 (here number 87 means 87% of an hour) How can i end up (using MOD) with the same variable(float) Time2Finish in the form : 5.52 (here number 52 means minutes) ?? Thanks in advance George

Hi all, I recently upgraded Flowcode 4 to Flowcode 6 so i enjoy the new environment and i am trying to get used of it! I would like to calculate the remaining time for one task. The issue that i am facing is the form of the calculated remaining time (only minutes) which looks like this : 5.87 (5 hou...

Hi, i did not realized that this was posted for V6. Excusse me for that.

My question was for V4 of flowcode. I tried the example in the link above but i get errors while compiling.

Thank you very much for the reply,

i will have a look on that topic.

I want to discuss something else regarding EEPROM and interrupts as well but i don't know where is the appropriate forum location to post my thought and questions. Any idea or suggestions?

Thanks again
George

Hi, i would like to write and read some floating values (e.g. 3.42 or 34.2) in EEPROM. How can i achive this?

If it matters, i am using PIC18F4523.

Thank you in advance
George

Hi Benj, i really thank you for your reply.

At the moment i use flowcode 5, would it be possible to have this example in that previous version of FC5?

Best Regards
George

I would be grateful if someone could suggest any article or flowcode example with acceleration - Deceleration of a stepper motor.


Thanks
George

Hi, merry christmas and all the best to you and your families! As the title says, i am looking a way to implement an acceleration and deceleration of a stepper motor. I guess it can be done somehow using interrupts for accurate timings for the ramps but i haven't try it yet. Is there any example in ...

I will answer to my question above since i found out what the problem was so anybody with this issue can read this solution. The problem was that in the "ShowDigit" custon code (right click on the 7seg component and select custon code) ,where only the port a, b ,c,d,e was defined. For my project i h...

Hi to all, i know this is an old thread but i have a question about. I am using single 7-seg components in my program. The device is the 18F8622 I need five single 7-seg components in my program. I am getting the error messages below when i compile to HEX. Que_Informator.c(1740:2): error: unknown id...

Any idea please?

Hi all! I am facing an issue regarding a Timer program that i am currently working on. I am using an interrupt (TMR0) in order to count seconds and so on.. The problem with my timer is that it is not quite accurate as it should be. The timer runs faster that the internet clock. Is there anything tha...

Hi again!! I managed to run and control the stepper motor properly after i tried several examples of coding.. Another think that i want to ask, is it possible to interface the DS1307 to PIC 16F877A using Flowcode? Do i have to use any component from Comms Menu in flowcode? I am trying to make a digi...

Thank you very much i appreciate your help !

Hi Ben and thanks again!

I did something similar to your design.. the only "problem" is that the pulses are not very fast as i want to be and therefore the speed of the motor is still low..

In your example above, what is the frequency of the pulses if we suppose that the ADC is 0 ?

Thanks very much for your reply! To be honest i didn't get the way that i have to develop the flowchart to achieve that you just explained. Is there any example of this kind of program in flowcode? Basically, i am trying to control a stepper motor driver (using pulse and direction signals). I can co...