Matrix user forums

Have you considered Virtual Box? The VirtualBox Personal Use and Evaluation License (PUEL). version supports USB see http://www.virtualbox.org/wiki/Downloads ( Note the open source does NOT ). Does mean you cannot dump Windows entirely but does mean you can use Linux for browsing the Web, email and ...

Just read about the new XMOS processor see http://www.xmos.com/ and http://en.wikipedia.org/wiki/XCore_XS1-L1 Certainly a processor to watch. Might be an interesting addition to the E-Block family especially with Flowcode support. P.S. If you do produce one - can I have a free one for suggesting the...

This article is good as far as it goes. What it really need is some details on how to wire up the stepper motors (unipolar & bipolar) to a EB011 power board so that Flowcode Stepper Component works. Or does the wiring not matter? can I just wire each of the four wires from a bipolar stepper to each ...

Does the motor board EB022030 support stepper motors?
If yes which type of stepper motors? Unipolar? Bipolar?

Maybe speaking out of turn here. My understanding of PWM is that you need to pass it through a low pass filter i.e. A resistor in series and Capacitor in parallel . The cut off frequency for the low pass filter is given by 1/(2 * pi * R * C ). The cut off frequency being the frequency that the signa...

Ben That's interesting, but confusing as I have since come across this document http://www.microchip.com/stellent/idcplg?IdcService=SS_GET_PAGE&nodeId=1824&appnote=en011071 Which comes out in favour of R-2R ladder, rather than PWM. When you tried the R-2R ladder did you also have a low pass filter? ...

Looking at the circuit diagram in viewtopic.php?f=26&t=4850 I see that it initially uses a 330R resistor and a 100nF capacitor as a low pass filter. I calculate that 1/2(pi)RC gives about 4.8Khz as a cut off frequency. Which makes me wonder how good a sound can be created with PWM compared to using ...

Out of interest why did Matrix Multimedia not make Pin 9 Vcc and the shell Gnd. Would have saved running all those 5V wires to those E-Block that need a supply.

Thanks Ben. I now feel comfortable on possibilities for the Sound Output. Its the input I could do with some more pointers/ inspiration. I have now found that the micro controller detailed at http://microcontrollershop.com/product_ ... cts_id=820 does have a circuit diagram in the downloadable user ...

I am considering designing / building a Homebrew E-Block for sound. On the Input side I found http://microcontrollershop.com/product_info.php?products_id=820 which is a board that has Microphone -> Pre-amplifier -> PIC ADC, but I have not be able to find any circuit diagrams for such things. Anybody...

Okay I just downloaded the Free Version of Flowcode and started to play and it does look good So much so that I have offered to give a short demo of Flowcode at a future Radio Club Meeting ( IVARC ) Itchen Valley Radio Club. I don't know if I will be taken up on the offer. Now I can clearly use my v...

Personally I don't use Flowcode. I sure it is good, but I am an assembler man at heart. Anyway I came across more information on using PICkit2 and flowcode http://matrixmultimedia.com/mmforums/viewtopic.php?p=6911&sid=3e1bb5e05226ed5b1464850c2593682f Does you previous comment mean that the forum app...

One thing I meant to mention. I ordered my PICkit2 for Β£9.98 before I found out about the AC164110 RJ-11 to ICSP adapter. Now if I want to order one I will have to pay Β£8.20 shipping which does not seem worth it for a Β£6.03 adapter. So if anybody is ordering a PICkit2 (You are only allowed one pe...

Todate I have resisted buying ICD 2 In Circuit Debugger as they used to be around Β£80 and now seem to have gone up to Β£98 and I have managed to get code working with out one. Now I seem to have found an alternative plan. From my reading on the microchip site. I could use a PICkit2 Development Prog...

I already had version 3.9.12.26 installed.

I forgot that switching to expert mode gave the option of more PIC's than without.

Keith

On Checking PPP, of the 12 family, it only seems to support 12F629 and 12F675 both of which run at 4Mhz.
Does that mean if I want to use one of the other 12 Family members I am out of luck as far as programming it is concerned.

I generally leave a PIC16F877A in my programmer as although it is over kill for a number of applications it supports all 5 ports and supports everything else I have ever needed i.e I2C etc. I just plug in the relevant E-Blocks and load the relevant software and go. Now I want to create a simple appl...

Maybe I did not explain very well. But I was thinking of more the other way round. i.e. Change PikLab to work with the ppp program. I sent an email to the address on the web site for PikLab on the lines of getting changes so that PikLab could drive an external program with parameters when programing...

Ben

As PikLab is open source could it not be changed to run a external program/script to program the pic. That is change PikLab to run ppp as an external program.

Keith

It would be great if it could be made to work with a EB006-30 USB programmer.

I could then switch from using MPLAB + ppp which is okay, but would like less steps when
programming. I know I could invest in an ICD2 but they are not cheap.

Thanks Keith

A member of our Radio Club has pointed me at PikLab for PIC development.

Its like MPLAB but open source see http://piklab.sourceforge.net/.

Anybody know if it can easily be upgraded to support Matrix Multimedia Programs.

How about future support from Matrix Multimedia

With the http://www.pmdx.com/PMDX-103/ you can supply an external 12V

Would one of these with external power be of any help

http://www.pmdx.com/PMDX-103/

Ben

Yes you are correct I missed the fact that Farnell's do have UK stock for some reason.
Sure I did not find them when I did my initial search

Trouble with Farnell's is they have a Β£20 minimum order and tend to be expensive.
Will see if I can find elsewhere.

Keith

Right Angle 9 pin D-Sub Connectors.

Rapid : do not have any right angle ones for PCB mounting.

RS : only have surface mounted right angle ones.

Any other suggestions.