Matrix user forums

Hello Paddy If you like I have a beta version of a stepper motor component complete with simulation. Would be good to get this tested out in the field anyway. To install the component download and open the attachment, open the stepper installer folder and then copy the 5 files into your Flowcode V3/...

Hello Kumaran To allow for a mass storage device and also enable data connectivity you would have to create a device with two USB enumeration interfaces. The current Flowcode components will not allow you to do this and it would be a fair amount of work to make it so. Also it would make the current ...

Hello Paddy

The EB022 can handle a single Bipolar or Unipolar Stepper motor.

Hello Jeff

If you want to save up to 32 values at once then you will have to do the following.

I2C Start
I2C Send address with 0 read/write bit
I2C Send the two byte initial data address
I2C Send the first data byte
...
I2C Send the nth data byte
I2C Stop

Hope this helps.

Hello Kumaran We thought that mass storage devices were so readily available and cheap that it was not really worth doing a mass storage component. The components available are a COM RS232 replacement, a Slave device and a human interface device. If we get enough requests for the mass storage aspect...

Hello What if you take out the pragma definitions, these can be completed at a leter stage by the PPP software. Does the program compile then? /* Flash one LED */ /* David Miles April 2006 */ #include <system.h> void main() { trisa = 0xfe; /* set bit 0 of PORTA for output */ while (1) /* loop foreve...

Hello Kumaran

Are you using pull up resistors on the two I2C Bus lines?

Hello Rinnie

Please refer here for the 125khz RFID modules and antennas.

http://www.rfsolutions.co.uk/acatalog/R ... odule.html

We have just released V1 of the Flowcode V3 USB Pack. To download the pack simply click on the link at the bottom of the page and fill out the online form. http://www.matrixmultimedia.com/images/USBPack.gif The Flowcode USB Pack allows for communications between a PC and a USB enabled PICmicro devic...

Hi Alex Ok I spent a bit of time on the accelerometer component over the weekend and its now almost ready to go. Im going to test it out tonight and if it works ok then Ill release it tomorrow. It should allow you to use either the 4-wire SPI bus via the hardware SPI bus or the I2C bus via the hardw...

Hello Jane

Please see this example for printing out floating point numbers.

Hello The enable pin is being used it is just on for small amounts of time. Tying the enable pin to VDD will stop the display from working altogether. Are you running the LCD Start macro at the start of your program. If you are experiencing LCD startup problems then calling this macro twice at the s...

Hello Ok here is the route to creating your own project, Open sourceboost via the C4PICs course and then click on Project and New. Give your project a name and specify the folder it will be located in and click ok. Then Choose a with empty source file and select the BoostC (NOT BoostC++) toolsuite a...

Hello

I think you can get away with a 10K so a 9K resistor should be fine.

Hello Alex I am looking at using one of these modules (or a very similar module) in one of my current projects. I will keep you informed as to my progress as I will probably make a custom code file to drive the device. Currently I am having problems simply getting the devices onto a circuit board so...

Hello Yes im sure this can be done however im not sure how it would be acheived on the mcc18 compiler. There should be a compiler manual which will detail things like pointers and addresses. However if you wanted to make life easier for your self you could just assign the values by writing directly ...

Hello Flowcode is capable of controlling up to two hardware driven PWM signals. As well as this it is capable of controlling as many software PWM channels as you require using a simple interrupt based routine. See the examples page for my example on bit banged PWM using LEDs. http://www.matrixmultim...

http://www.matrixmultimedia.com/images/Article_AllVersions.png One of Flowcode’s real strengths is that it is very easy to use and simple flowchart programs can be created very quickly, even by first-time users. However, flowchart icons alone will only get you so far and you may need to resort to...

Hello

No im afraid we do not currently have code to enable the onboard CAN registers. Hopefully Flowcode will be able to perform this soon. There is no multi register read or write as far as I can tell you will have to write each register value one at a time.

Hello Marcus The keypad component performs the scan and then returns a value almost instantly. If this value is 255 then no key has been pressed. If you want to halt the program until a key has been pressed then use a loop icon to poll the keypad until the value returns is less then 255. eg. keypres...

Hello The servo motor example works something like this. Loop { The 8 bits of an output port are cleared to switch off all 8 devices. A timer is set running using CCP1 to set the maximum period per channel. A second timer is set running using CCP2 to set the mark space ration for the single channel ...

Hello Ian Sorry I thought string variables could be sent via the RS232 send macro but strings can only currently be sent if they are constant values. Another way but not quite as neat would be to have a loop that incremented an index variable and then sent a byte of the string to the rs232. Eg Strin...

Hello I have found these pages which look like they could be some help. Quick guide to I2C including the sending and receiving of bytes and setting up the adress bytes to initiate a read or write function. http://www.robot-electronics.co.uk/htm/using_the_i2c_bus.htm I then found this which is a guid...

Hello Ian

Here is an example of using the tostring() function.

Hello

Example files from the course are available from here.
http://www.matrixmultimedia.com/abouteb ... ions-X.php