Matrix user forums

John, you're a genius! I had just started using the I2C function in the chip and had added two 1K ohm pull up resistors
to the clock and data lines on RB0 and RB1. I disconntected these and the compile to chip worked. I'm back in business.
Many thanks John.

John, all I had connected to the HP488 was 2 EB-004 LED boards. I disconnected them and got the same message as before.
But it was worth a try.
Thanks again. Mac

Thanks John. I'll disconnect stuff and give that a try.
Mac

I've been working with the PIC18F4550 installed on the HP488 board successfully for some time. My version of Flowcode was 5.0 with the 5.1 update. The computer OS is 7, 32 bit. I recently updated to Flowcode Ver 5.2 and to complicate things, Microsoft automatically updated the OS at about the same t...

I couldn't find a simple decimal to binary converter in the forums, so I'm posting one here.

Hello Matrix Team, The above fix worked for both Flowcode V4 and V5. I now have RS232 receive capability using V5, (My problem in a previous post) but I still get the Serious Warning: Possible sw stack corruption, function 'delay_us' . The //delay_us(10) fix worked for V5 to clear up the Serious War...

Hello Benj,
I changed the RS232 properties from software to UART1, downloaded the flowchart into the chip and did not get any SERIOUS WARNING messages using V4.
Lots of Thanks.
Mac

Thanks Benj and Kersing, I understand how calling a macro or other function from two different parts of the flowchart at the same time would be a problem. I am only using one RS232 receive component macro and it's in the MAIN, inside a loop where I call a UART macro and SUM the ASCII numbers. When I...

Has anyone had a compiler message that says "Serious Warning: Possible sw stack corruption, function 'FCD_RS2320_RS232_Delay' called by more than one asynchronous thread (main/Task, interrupt, interrupt low)"? I've had this warning for some time without ill effects as I built up the flowch...

Hello Steve, 1. I'm trying to recode to remove the 'serious warnings' as you suggested. I think I have identified them. Two have to do with using multiple component icons of SendRS232String. It was easy to rewrite the smaller of the two macros to use the component just once. I could see how to rewri...

Jonny, I made a mistake. Apparently I clicked on the drop down menu, didn't know what to chose, left the field blank and clicked on OK. This is when the message appeared, "Parameter 1 is invalid: You must provide a valid expression". I misread it, thinking it meant (expression = 1 is inval...

Hello Jonny and/or Benj, I'm slowly closing in on my problem areas. I have identified several things that need changing. I just have to figure out how. In the "Component Macro" window for the "ReceiveRS232Char", under the parameters section it requires a valid expression. I don't...

Hello Matrix Team, I'm not making much headway past my post of Thu Jan 19, 2012 3:11 am. Now, in addition to the Serious Warnings I got before, I also have (Warning unreferenced functions removed:) and a long list of 72 functions, some which I think I need. I still cannot communicate with the PIC18F...

Hello Matrix Team While trying to solve one problem, I ran into another. The maximum baud rate listed in the RS232 properties is 38400. I tried to load my flowchart at this rate and got this message, C:\Program Files\Flowcode\v5\CAL\PIC\PIC_CAL_UART.c(103): UART Baud Rate not supported in Software M...

Thank you very much Benj. Thank you very much Steve. Thank you very much Wolfgang. Thank you very much Fotios. Thats a lot to think about. I'm still new at programming and don't know enough to ask questions yet, but I'm learning. I think I get the idea of what needs to be done so things run sequenti...

I just upgraded to Flowcode Version 5 yesterday. To check out the new program, I opened a flowchart that worked well in Version 4.5, and everything looked very good on the screen. After JonnyW helped me fix a small problem, I loaded the flowchart into a PIC18F4550. The chip worked right away, but on...

Hi Jonny,
After you helped me fix the "Illegal symbol name" problem, I noted that some of the hardware functions didn't seem to work properly. I think this subject would best fit in the Re: V5 Upgrade thread, so I'll post it there.
Thanks again, Mac

Jonny,
That fixed the loading problem, but now some of the flowchart functions don't work. I'll have to look into it and get back to the forum a little later.
Thanks again.
Mac

Thank you Jonny,
I'm reluctant to post the flowchart for proprietory reasons.
Mac

I just upgraded to Flowcode Version 5. To check out the new program, I opened a flowchart that worked well in Version 4.5, all looked good on the screen. I tried to load the flowchart into the PIC18F4550 and got the following failure message. FlowcodeV5 IRCB 2012-01-16.c Starting preprocessor: C:\PR...

Hello Matrix Staff, I purchased Flowcode V5 upgrade yesterday. During the checkout, I entered the license code from my V4 CD case, but the V5 upgrade price continued to show GBP 199. I expected to get the 50% discount after the V4 license code was verified. Later in the day I got an email from World...

Thank you very much Steve. As it turns out, I had previously downloaded and installed the newer version of PPP, but that was not my problem at all. When I was setting up the chip configuration for a PIC18F4550, I clicked on OPTIONS, then SET DEFAULTS. As I learned in another post, the PIC18F4550 is ...

This fix does not appear to work for Windows 7, 32 bit. Does anyone have any up-to-date suggestions?

Mac