USBDemo, something to learn USB a little bit

[SterlingY]

Of course I took your excellent example and tore it all apart to modify it into something completely useless to me.

I'm not getting data from USBbufferin on the device. I am kind of curious about a line in the VB side:

"hidWriteEx VendorID, ProductID, BufferOut(0) ' send it"

Doesn't that just send the first element of the array? On the device I am trying to read USBbufferin[2] but get nothing. I should point out that my version has this as a normal BYTE, not the LSB of another number or whatever you had.


-Sterling

[SterlingY]

More info:

In the VB code, if I put the following line "BufferOut(2) = 145" in the WriteSomeData() function, I get "0" when reading on the device, however, If I put that same line in the Form_Load() function, it sends the data, so I think the Form is constantly reloading. How can this be?

-Sterling

[SterlingY]

I seem to be talking to myself here, but that's okay.

I just wanted to say that I got it working. I don't know how. But, I ran the original USBDEMO.exe, and then everything started working with my modified version.

Crazy, I know!

-Sterling

[SterlingY]

Here I go again:

The problem was that VB buffer(1) comes into the device as buffer[2]

[ronjodu]

Thanks for the inspiration Steve. My upgrade is complete, PBP2.47,EasyPic 4, PicFlash 7.03, a new laptop to stuff it all in and some 18f4550 samples.
Thanks to Uncle Sam for a quick tax return also.


Had some trouble with the USB stuff at first but this post solved my problems.
http://www.picbasic.co.uk/forum/show...4&postcount=32

Not sure what to do with the $20 I got left. Dinner at Denny's with my wife maybe?
Then again I could use another USB cable...

Thanks again Steve.

[Momboz]

Dear all

I am a newbie who's tying to do his first steps with UBS programming under PIC. My environment is PBP 2.47, Microcode Studio 3.0.0.0 and MPASM 5.03.

I am using microsontroller PIC 18F2450.

The issue is: when trying to compile and assemble the source file USBDemo.PBP from Steeve I get the following error messages:

ERROR: Macro USBINIT? not found in macro file.
ERROR: Macro USBSERVICE? not found in macro file.
ERROR: Macro USBIN?CBBL not found in macro file.
ERROR: Macro USBOUT?CBBL not found in macro file.

I did make any change to the original files as posted on this forum.

Could any one be of help to me?

My file locations are as follows:
MPASM D:\Program Files\PBP\MPASM
PBP D:\Program Files\PBP

When loading the USBDemo.HEX file in my microcontroller (18F4450 and 18F2450) it works fine with the PC application from Steeve.

In advance many thanks for your help.

[skimask]

I am using microsontroller PIC 18F2450.

The issue is: when trying to compile and assemble the source file USBDemo.PBP from Steeve I get the following error messages:

ERROR: Macro USBINIT? not found in macro file.
ERROR: Macro USBSERVICE? not found in macro file.
ERROR: Macro USBIN?CBBL not found in macro file.
ERROR: Macro USBOUT?CBBL not found in macro file.

I did make any change to the original files as posted on this forum.

Could any one be of help to me?

My file locations are as follows:
MPASM D:\Program Files\PBP\MPASM
PBP D:\Program Files\PBP

When loading the USBDemo.HEX file in my microcontroller (18F4450 and 18F2450) it works fine with the PC application from Steeve.

In advance many thanks for your help.

As far as I know, PBP doesn't support USB on the 2450/4450. Yes, those chips are USB chips. Yes, PBP does support those chips, just not using the USB, at the website doesn't specifically say it supports them that way. The only chips I see that PBP directly supports with USB are the PIC18F2455, 2550, 4455, and 4550, and the 16C745, 765.

[Firegod]

Dear all

I am a newbie who's tying to do his first steps with UBS programming under PIC. My environment is PBP 2.47, Microcode Studio 3.0.0.0 and MPASM 5.03.

I am using microsontroller PIC 18F2450.

The issue is: when trying to compile and assemble the source file USBDemo.PBP from Steeve I get the following error messages:

ERROR: Macro USBINIT? not found in macro file.
ERROR: Macro USBSERVICE? not found in macro file.
ERROR: Macro USBIN?CBBL not found in macro file.
ERROR: Macro USBOUT?CBBL not found in macro file.

I did make any change to the original files as posted on this forum.

Could any one be of help to me?

My file locations are as follows:
MPASM D:\Program Files\PBP\MPASM
PBP D:\Program Files\PBP

When loading the USBDemo.HEX file in my microcontroller (18F4450 and 18F2450) it works fine with the PC application from Steeve.

In advance many thanks for your help.

I have the same problem as above but I am using a 18F2550. What am I missing or where did I go wrong?

I am configured for a 18F2550 but the USBDEMO.MAC file is overwritten without the needed macros each time I try to compile.

[naga]

Dear all

I am a newbie who's tying to do his first steps with UBS programming under PIC. My environment is PBP 2.47, Microcode Studio 3.0.0.0 and MPASM 5.03.

I am using microsontroller PIC 18F2450.

The issue is: when trying to compile and assemble the source file USBDemo.PBP from Steeve I get the following error messages:

ERROR: Macro USBINIT? not found in macro file.
ERROR: Macro USBSERVICE? not found in macro file.
ERROR: Macro USBIN?CBBL not found in macro file.
ERROR: Macro USBOUT?CBBL not found in macro file.

I did make any change to the original files as posted on this forum.

Could any one be of help to me?

My file locations are as follows:
MPASM D:\Program Files\PBP\MPASM
PBP D:\Program Files\PBP

When loading the USBDemo.HEX file in my microcontroller (18F4450 and 18F2450) it works fine with the PC application from Steeve.

In advance many thanks for your help.

Hi.
Momboz..

Iam getting exactly same errors dear,

ERROR: Macro USBINIT? not found in macro file.
ERROR: Macro USBSERVICE? not found in macro file.
ERROR: Macro USBIN?CBBL not found in macro file.
ERROR: Macro USBOUT?CBBL not found in macro file.

How did you solve this problem?

Plz Help me...

Regards...