CodeMercs Forum

Hello Guido,

Hope everything ok with you and family!

I have acquired recently the legacy KW16 FLex MOD to drive a 8X8 switch matrix.

I have installed it on a dedicated circuit board and plugged to USB and everything seems OK.

However when I open the KeyWarrior Table program and correspondent new ...

Yes of course, I work perfectly fine with an IOW40 PCB, and never get warm.

Is it possible to change this product?

Thanks for your answer,

It does not work in any computer.

I have changed the USB port and do all sort of changes and it does not work.

Besides, the chip seem to be hot when the PCB is connected.

I think it is damaged.

Hello again!

I am utilizing a KW24 to drive an 8X8 key matrix.

When connecting the PCB with an USB cable to Windows 7 SP1, it appears the message on Device Manager

Device Unknown, windows interrupted the device, Code 43

I have tried several times to update drivers, intall again and so on.

Any ...

Hello all!!

Without using LED-Matrix and Switch-Matrix capabilities from IOW40 chip, just using the 40 basic pins, is it possible to make the following thing:

- When i close a switch a led will go on.

Or by other words, when i put a 1 (closed switch) to a pin on Port-3 can i have an output on ...

Hello people!!

I need help on programing with IOW40 API.

I´m using MFC C++ to interact with my board and by now i can do some interesting things.

Now i want to program a simple code, using IOW API functions read and write and so on, wich give the ability to my program to detect and configure user ...

Ok,

I have told you before i´m not an expert on programing languages.

I have experimented another code and i can switch on-off a single led:

void CInterfaceSystemDlg::OnCHECK1writebit1()
{
// TODO: Add your control notification handler code here
IOWKIT_SPECIAL_REPORT report;

report ...

Ok thanks i understood,

memset is not the "point" i need! Please can you give me an example (with C++ code) to set an individual led ON, on a matrix of 8X8?

Actually i can do that, but using memset on this code:

void CInterfaceSystemDlg::OnCHECK1writebit1()
{
// TODO: Add your control ...

Hi Good-Day,

I want to have on my code a function to switch on-off all the single led´s on my LED-Matrix, wich is actually an 8X8 matrix.

Can you explain what does it mean this single line on the code:

memset(&report, 0xff, IOWKIT_SPECIAL_REPORT_SIZE);


When i run the program with 0xff all the ...

Ok, checked!

More 2 questions:

1 - Is it possible to have special mode functions Led-Matrix and Switch-Matrix operating at the same time?

2 - I know the API dont have support for plug/unplug but is there a way to refresh or make the reset of the program instead we have to close it and re-open if ...

Hello,

Thanks Christoph, your advises was very useful to "clean" my code.

But i´ve a few more questions...

1- How can i use function IowKitReadImmediate() to display the IO pins values, for example in an Edit Box? I´m just getting 0 or 1´s with this code:

void CInterfaceSystemDlg::OnRead ...

Ok,

I´ve send you my project, thanks!

MS

Hi again,

Thanks Christoph, your advise to not use ioHandle several times along the program was very useful because i could save a lot of warnings from the compiler. :)

The bad news are the assert failure doesn´t go away!! And i´ve tried with the 2 examples you have show, with the static text and ...

Hi, first of all, thanks Christoph for your prompt reply!


I´ve called IowKitOpenDevice() on the section //TODO add extra initialization code. I think this is enough or i must call the function several times as it comes necessary like in this situation?

I´ve done copy/paste your code for my .cpp ...

Hi all,

I´m writing my own program to talk with IOW40 in MFC Visual C++ 6.0.

Until now i´me made a few things but they are working well.

But i cant find any way to fill an Edit Box on MFC with the Serial Number string of IOW40.

The code i´ve writed is:

void CInterfaceSystemDlg ...