Objective Development Forums

Re: Transfer idea needed

2011-07-29T08:28:54+02:00

Perhaps you can take http://www.mikrocontroller.net/articles ... r#Download as an example. The dll is written in Delphi and maybe the author will share some code with you if you ask him. His name is Hugo Portisch.

Statistics: Posted by Guest — Fri Jul 29, 2011 8:28 am

Re: Transfer idea needed

2011-07-28T12:42:45+02:00

This sounds great. Now I only have to find out how to use it with TJvHidDeviceController..... hmmm...

Statistics: Posted by bla — Thu Jul 28, 2011 12:42 pm

Re: Transfer idea needed

2011-07-28T12:32:56+02:00

Each request you do to the USB device has a "value" parameter, which can be filled with anything you want. You could use it as an address so you can do multiple requests. (the usbRequest_t recieves this value in wValue)

Statistics: Posted by Daid — Thu Jul 28, 2011 12:32 pm

Re: Transfer idea needed

2011-07-28T11:14:36+02:00

But if I use GetFeature, no data (besides the report id) gets transferred to the µC, right?

Statistics: Posted by bla — Thu Jul 28, 2011 11:14 am

Re: Transfer idea needed

2011-07-28T05:46:35+02:00

Your report should consist of an address followed by data, all contained into one report

Statistics: Posted by Guest — Thu Jul 28, 2011 5:46 am

Transfer idea needed

2011-07-26T22:35:53+02:00

Hi,

I'm quite unexperienced with USB/HID in general so I need some help.

Using HID is mandatory. On my µC I have a table full of data. It's pretty much as big as the eeprom is. The host software (written in Delphi using a TJvHidDeviceController component) needs to be able to update each line in this table. I already figured this out (SetFeature). Using GetFeature to read a predefined line also works.
The "problem" now is to read out any other line of the table. Or all of them. Let's say I want to read line 23. My idea was to introduce a new report id just to tell the µC which line is next with SetFeature, then use GetFeature. A bit complicated, isn't it? How would you do it?

Thanks.

Statistics: Posted by bla — Tue Jul 26, 2011 10:35 pm