Matrix user forums

Hi Ben -- I'll have to check the compiler warnings as you suggested, although I don't recall seeing anything wrong. Good idea on enabling the BoostC software stack, but for me it is simply easier to go with a better PIC chip, and thereby keep everything in it's default mode. I have really been tryin...

Stack Overflow, what is it? This is something that if you are programming directly in Assembler or "C" you learn about very quickly. It is a special area of memory in the PIC reserved for holding the return address when executing any kind of subroutine Call. This allows the PIC to know where to retu...

Hmm... I tried fiddling around with various approaches on modifying the PID to work with my application, but with dismal results. It was either way too touchy, had major over shoots, or just sat there and did nothing. I gave up, and have decided to take an approach that I can better understand and e...

Opps! just found a potential problem with your suggestions. That is representing various signals in 16-Bit format. Flowcode only has signed integers, which means that anything over 32767 will cause an overflow (or is that considered underflow?), and be considered a negative number. So I think I'd be...

Thanks for the quick reply and suggestions Ben. I will give it a try over the next couple of days and report back in on my results (or perhaps with more questions).

I downloaded the PID program given on the Example page of the Matrix site, and would like to make it work for another application that has a 16-Bit DAC utilizing the 2 PWM outputs of a PIC16F877a. The example code shows a PID loop that updates a single PWM channel in 8-Bit mode, and references an 8-...

Not that I have a need for this at the moment (although I have used these in the past); a Quadrature Encoder Component seems like it would make a great addition to flowcode. Any plans to add one in the near future? Edit: Just realized that this post might have been better posted in the "Components O...

I wish I could see what you did, but your file appears to be intended for the AVR version of FlowCode, and it wont open in my PIC version.

Vidor --- I had a similar problem of getting a precision result while limited to the 15-bit (un-signed) aspect of the FlowCode integers. Basically I had a need to multiply a gain factor of less than 1, with at least 3 digits of precision (.948). The value I was manipulating originally came from a 16...

It seems like it should be quite possible to build the protocol from within Flowcode itself. Just be a matter of using If-Then decision blocks to sort out the commands. Of course there might be a way to streamline it based on decoding commands and parameters separately. Perhaps even creating macros ...

This would be of interest to me as well. I probably wont get around to trying this until later this year, but if I do come up with something I'll be sure to post it. Of course I too need to learn the protocol.

Yes you are absolutely right. Your guys time is better spent elsewhere. And yes the list idea would be a good compromise. Too bad only Chevy and I seem to be the only users participating in this discussion, because as you stated earlier, this forum is for the flowcode users, and it would be nice if ...

My vote would be for around 4 or 5 sub-categories. Without thinking too much, how about these: * General/Misc * Components (comms) * Components (other) * Bugs * Suggestions Steve this looks good to me 8) But I would agree with the addition of this as well, as suggested by Chevy6600 (if at all possi...

This forum is getting difficult to navigate with all the individual topics. In fact as I scan through it all, I notice that there seems to be some replication probably due to the sheer number of posts that have been made. It would seem before this gets too out of hand, that it is time to create some...

Very good post, and I agree that FlowCode is a great way to go (almost like having LabView for a PIC). However unlike you, I have programmed PICs for years, both in Assembly and Basic (MLE PicBasic). I guess you could say I got really tired of it, although still enjoyed designing the hardware. I too...

Cool
Thanks for the quick answer Sean.

I was hoping that it was unimportant, and you confirmed it.

I get the following Warnings, but this is followed by a "Success", and then proceeds to program the PIC16F877a without any problems. Basically the code seems to work just fine in my application, but the warnings do concern me. BoostLink Optimizing Linker Version 6.70 http://www.sourceboost.com Copyr...

Sounds like V4 for will be bringing lots of extras. I like the sound of that

Any idea when a beta release will appear?

2 different kinds of Integer Variables: Signed 16-Bit (as presently supported) Unsigned 16-Bit There are many times when I really could use a full 16-Bit unsigned variable for scaling, and would rather do so within flowcode, and without needing to implement the C-code alternatives. SPI Component Th...

Thanks for listening Ben, and confirming what I suspected 8) Yes the more I think about it; entering the parameters for "X" (# of characters) and "Y" (# of Lines) into text fields, would seem like a good approach. So as not to confuse people that are used to the present drop-down method, this could ...

This looks like as good a place as any to post a question I have on LCD Display character length parameters. I would like to use a 28x2 line display, but obviously there is nothing that matches in the drop-down box within the LCD Component. However I gather that this doesn't matter as far as the rea...

Since the RS232 is hardware based, the baudrate is also determined by what clock speed you are running the chip at (e.g.; crystal frequency). So it would be important to have the flowcode clock speed setting be the same as the actual crystal in use, in order to get an accurate baudrate. Although I d...

Hi Ben,

Although these new beta components are better then nothing, they are still very limiting if they can't be simulated in the flowcode environment. Any plans to make them into full fledged simulatable components?

I would like to see the PWM component support the full 10-bit range, and not just a byte as it is now. Essentially I want to be able to pass this value within an integer.

Steve, Thank you for the quick response, and clear instructions on re-installation of flowcode. Kinda sad about having to purchase an entirely new flowcode package just to be able to run it on my laptop, and my desktop machines. This is a very expensive method, just to have the option of going porta...