Matrix user forums

This site has some useful information that might answer your question. http://www.talkingelectronics.com/projects/TheTransistorAmplifier/TheTransistorAmplifier-P2.html#Constant%20Current I have used this device for current limiting led's, it is a small 2 pin device. http://www.mouser.com/ProductDeta...

Thank you for pointing that out. I finally got it working by adding a global String variable in the Project explorer. The Return Value:(String) field will accept either a String variable or an Object handle variable. I had mistakenly assumed I could put a Property variable in the Return Value:(Strin...

Thank you kersing, that makes sense. Progress I guess, the error went from a red to blue background. Now Flowcode thinks the variable "value" is an expression.

The GetValue return is always rejected as "syntax error" no matter what type the variable "value" is, i.e text, unsigned integer. Is there a special technique that must be used to define the variable "value" other than in Properties so it won't be rejected as syntax error?

Thank you for pointing out that application note Pascal. I was very curious about the synchronized SPI and PWM in AN1606 so I made a test program using that information to experiment with. I did not have that microcontroller to test with so I just used one I had. I have attached the program but, a l...

I think what might be confusing to you is your assumption on #1 of your original post. The statement in 21.3 can be confusing. It does not change your prescaler settings, it resets the prescaler counter, which is exactly what you would expect it to do. So, yes, clear the tmr1l(do that 1st) and tmr1h...

Thank you for the example, nicely done. I will experiment with the SetValue portion. I wish I understood the basic concept of of the other functions and properties and the variables (which don't even seem to act like variables) so I could at least ask a simple question on how to do something in part...

You can create your own 16F1509.fcdx file if you like. Here are the steps to create it: 1. Upgrade to Flowcode V6 Pro (you will need the Pro version if you want the PWM component, the Chip Pack version does not include that component). 2.Download the XML editor that dazz suggested. Here is the link:...

The tutorial on creating the led component is very well done. It is step by step with clear instructions on how to create it which made it easy for me to learn. Thank you very much for for making that tutorial. I would like to learn more so I can create components that use some of the other function...

Glad it worked for you. I use the value from the macro to adjust the osctune register. When using the internal oscillator the clock frequency will change depending on the die temperature. This keeps the frequency drift in check.

If you use 255 as the period then your right, you can't get 100% on. However, if you set the period to a lower value like 254 and set the duty to 255, then you will get 100% on.

For a true 100% on in hardware, the duty must be greater than the period. If duty=period the pwm output will go low for 1, 4 or 16 fosc/4 cycle(s), depending on your setting of the Clock source of clk/1, clk/4, clk/16 respectively.

I needed a specialized interrupt to occur whenever a variable was set. The typical method of polling a variable to see if it is set just wasn't working well in my application so I made a custom interrupt to do the job. I defined a Flowcode variable to be the interrupt flag of timer6 and then created...

Thanks for pointing this out. Enamul has previously posted a permanent solution detailed here:
http://www.matrixmultimedia.com/mmforum ... +st#p41728

Great tip. So simple but it solves a lot of drawing problems. In the program I used to create the component macro I just selected the display segment group and typed in the z axis field 1 mm (so the segments are above the background) and all the 3d drawing issues magically went away. I have never us...

I made an experimental simulating component macro for a 2 1/2 digit lcd display and a 16LF1936 and thought I would share. The display is described here: http://www.mouser.com/ProductDetail/Lumex/LCD-S2X1C50TR/?qs=%2fha2pyFaduj%2f9cDOyLeAdwpjnlSEI6OtTOzOZ6xAddzLOkznZbkcPQ%3d%3d The component macro is...

That type of switch is always a challenge. For snap action switches I insert a delay of 200ms before it is checked again but, for your switch, I would try a quarter or third of a second. I think you will have to change to the the int pin to get rising or falling only for that particular chip.

You might have to follow the instructions on this post by Benj:
http://www.matrixmultimedia.com/mmforum ... ork#p52318

I wrote some code for the internal pullup resistors and thought I would share. I originally wanted to have one macro to handle many chips but, I couldn't figure out how to do it so here is are some examples for three different chips. To use these macros within Flowcode select Macro>Import..., select...

I wrote some code for the DAC and the comparator and thought I would share.

To use these macros within Flowcode select Macro>Import..., select the macro name and open.
Then drag a macro icon into your program and click on the macro name.

I wrote some code for changing the pins on the RS232 component and thought I would share.

To use this macro within Flowcode select Macro>Import..., select the macro name and open.
Then drag a macro icon into your program and click on the macro name.

I wrote some code for the divided clock out unit and thought I would share.

To use this macro within Flowcode select Macro>Import..., select the macro name and open.
Then drag a macro icon into your program and click on the macro name.

I wrote some experimental code for erasing, writing and reading flash memory for some 12 and 16 series micros and thought I would share. You should assume there are errors in the code if you attempt to experiment with these macros. You can easily cause damage to your program or the chip or possibly ...

I wrote some code for the internal temperature unit and thought I would share.

To use this macro within Flowcode select Macro>Import..., select the macro name and open.
Then drag a macro icon into your program and click on the macro name.

I wrote code for some easy to use macros and thought I would share. These are written for a 16lf1936 and an lcd display described here: http://www.mouser.com/ProductDetail/Lumex/LCD-S2X1C50TR/?qs=%2fha2pyFaduj%2f9cDOyLeAdwpjnlSEI6OtTOzOZ6xAddzLOkznZbkcPQ%3d%3d It requires 2 macros, one for setup and...