USBDemo, something to learn USB a little bit

[kiwipiper]

Forget my last I have figured it out ....... a very happy man here.

I had left out the .47uF cap on Vusb. Connected this and all is working.

Will now have a serious play with it, which I sure will create a bunch more questions.

Thanks for all your help Darrel.

[kiwipiper]

This One for Darrel Taylor. My question is how did you get on modifying the USBDemo program from VB to Delphi. I am much more comfortable working in Delphi than VB and would be really interested in any examples of Delphi Code for this project. I found a good component at http://www.soft-gems.net/index.php?o...d=14&Itemid=33 and have had some success in using it to connect to my PIC but my limited programming ability slows me down a fair bit, although I am learning a lot. If I had a working example in Delphi I am sure it would help me understand what is going on much better.

A second question is how do you put a serial number into the program. I have been playing around with the DESCUSBDemo.asm
file and tried to put a serial number into the code. Here is what I did:

; serial number
String3
retlw (String4-String3)/2
retlw DSC_STR

retlw '4'
retlw 0x00
retlw '3'
retlw 0x00
retlw '2'
retlw 0x00
retlw '0'
retlw 0x00
retlw '8'
retlw 0x00
retlw '8'
retlw 0x00
retlw '8'
retlw 0x00

Not working. Any suggestions.

[Darrel Taylor]

Both questions can be answered with EasyHID.

The serial number is entered on one of the setup screens.

And EasyHID will make a "Starting" program for either VB or Delphi.
<br>

[kiwipiper]

Thanks for that Darrel .... I did not understand the significance of EasyHID when it was being discussed in this thread earlier on. Making some real progress now and think I should be able to recreate the VB USBDemo.exe in Delphi. Very exciting stuff this USB.

[Momboz]

Thanks for that Darrel .... I did not understand the significance of EasyHID when it was being discussed in this thread earlier on. Making some real progress now and think I should be able to recreate the VB USBDemo.exe in Delphi. Very exciting stuff this USB.

Hi
Here is an adaptation of Mister_E USBDemo but in Delphi. It's not completely finalised but it works. This example bases on the PICPROTO-USB board from MELabs (you can get all the information on this board from their web site).

It's PIC18F4550 @ 20 MHz based. I hope the rest is self explanatory. PWM signal is on PORTC.2.

If you need more info, just let me know. Please, take into account I am not very often on this forum, i.e. please, allow longer reaction times in case you need feedback.

Have fun

[kiwipiper]

Thanks Momboz but I managed to completely recreate Mister_E's USBDemo.exe in Delphi. It was pretty easy once I understood what EasyHID was all about. Had a little bit of trouble with the PWM but in the end once I understood what MSB and LSB was all about that fell into place as well. The only thing I can get working is showing a serial number.

Anyway, thank you to everyone who has contributed to this thread it was all very helpful getting me on the right track. For those just starting with this I concur with skimask's comments two posts back that all the information you need is in this wonderful thread. It is the journey of discovery that is the important part and a bit of a struggle makes it all the more rewarding when you get there in the end.

Here is a link to my KPUSBDemo.zip for another take on the computer interface. It is slightly over the 200K limit, most likely due to my coding skills and overuse of graphics to pretty it up some. If anyone is keen on the code I could clean it up a bit, zip it up and put it up somewhere.

http://www.breambay.com/downloads/KPUSBDemo.zip

[thye]

Hi....what is EasyHID? Is it same as picbasic pro software?

Where can I download the EasyHID?

Thanks a lot....