Pic 18f Usb

[T.Jackson]

I certainly hope that they do the right thing by their contributors.

Another example of this sort of thing is MAME - (Multiple Arcade Machine Emulator) Initially back in 97 they swore on a stack of Bibles that it would never ever be for profit. Today it can be found on eBay living inside a rather large game box supporting over 1,000 games. Besides the fact that they've breached over a decade's worth of copyright -- where's the contributors share?

[mackrackit]

Maybe it's time for DT_HID, or even TJ_HID.
<br>

If you are going to start something like this, a cross platform version would be nice. Java?

I am not very good with Java yet, but I would help where I can.

[T.Jackson]

Java actually has all the protocols for USB. http://www.ibm.com/developerworks/li...ary/j-usb.html

[mackrackit]

The conclusion on that page says the two APIs are for linux, has any work been done for windows and mac?

Something that maybe could be compiled on the machine it is going to run on?

[T.Jackson]

That's right, good news for Linux users! Unfortunately, I don't think there's support for other OS's. You wouldn't do a project like this in Java. Out of the scope of my skill level, absolutely no way. I think it would take a kernel developer to pull it off actually.

[T.Jackson]

lmfao ...
I think Darrel's seriously having himself on too (unless of course he's a proficient expert in C++ and just hasn't mentioned it)

[mackrackit]

Being that I am a Linux user I might start playing with it.

Might be time to learn a little more about python. I have heard some good things about PyUSB, heard bad too~

[Darrel Taylor]

lmfao ...
I think Darrel's seriously having himself on too (unless of course he's a proficient expert in C++ and just hasn't mentioned it)

C++, never touch the stuff. I do Delphi.

However, there's no need for an external program.
It can all be handled by the assembler.
An include file, with the USB configuration defined in the top of the PBP program.

On the PC side, the program is just a standard example.
Plug in the VID/PID and away you go.
<br>

[mister_e]

serial number

[T.Jackson]

C++, never touch the stuff. I do Delphi.

However, there's no need for an external program.
It can all be handled by the assembler.
An include file, with the USB configuration defined in the top of the PBP program.

On the PC side, the program is just a standard example.
Plug in the VID/PID and away you go.
<br>

I see. No custom dll to go between programming languages & OS means no C++ I guess.

[T.Jackson]

I take it that Delhi has USB support?, or are you just planing to use some 3rd party OCX or something?

[mister_e]

No need for any third party... API calls and that's it. But yeah it's tricky.

Reference... Jan Axelson's book... which i should buy again...

[T.Jackson]

Might have to get my hands on a copy of that book. I have read portions of her other titles; Parallel Port Complete, serial too. I was unaware that there were Win32 API's for doing this.

[lengcallrobot]

Hi everybody,

I am new in this forum. I use PBP compiler and VB6 for my application.

The problem are:
. When I used USBOUT to send the data via EndPoint #1 from PIC to PC, I can send only
the spead upto 64kbit/s (I use oscilloscope to measure the time of sending
one packet from PIC to PC, an the time is about 8ms for 64 Bytes).

. If I use EndPoint #3 (virtual COM port), I can send data upto 115200 bit/s but it still
so slow for my application because I need to send data about 10 Byte at 100 ksample/s

My question is:
How can I used PBP to send the data in hight speed mode or full speed
mode? Normally, I used EasyHID from MicrocodeStudio to generate the
template for PBP and VB.

Hope to hear from you all soon.

[skimask]

My question is:
How can I used PBP to send the data in hight speed mode or full speed mode?

PIC18xxxx USB capable PICs are not capable of the high speed (480mpbs) mode.

[lengcallrobot]

PIC18xxxx USB capable PICs are not capable of the high speed (480mpbs) mode.

So, how about full speed mode? What to do?

[Rob]

Hi Lengcallrobot and welcome to the forums!

This is taken from the EasyHID help file contained in the EasyHID folder:

"What is a HID Device?

...... One of the major advantages of HID is that you do not need to supply a custom driver, as one is already supplied with the operating system. A limitation of HID is that its data transfer rate is limited to a maximum of 64KB per second. However, this is still significantly faster than RS-232 (115200 baud is approximately 12KB per second)......"

You should be able to send 64kBytes/sec in Full-speed mode as shown above.

It looks to me as though you are sending data in Low-speed mode 64kbits/sec (or 8kBytes/sec) from what you have shown.

Are you using a 48MHz clock source for the USB and have you set bit 2 of the UCFG register to enable Full-speed?

I could be leading you up the garden path about the speeds but this is my understanding

Hope this helps

Rob

[lengcallrobot]

Are you using a 48MHz clock source for the USB and have you set bit 2 of the UCFG register to enable Full-speed?

Thank Rob, however, I cannot set UCFG.2=1 or FSEN=1 in my program. When I do this, I get error message . the below is my source code in pbp

================================================== =================
DEFINE OSC 48
DEFINE LOADER_USED 1

USBBufferSizeMax con 64 ' maximum buffer size
USBBufferSizeTX con 64
USBBufferSizeRX con 64

' the USB buffer...
USBBuffer Var Byte[USBBufferSizeMax]
USBBufferCount Var Byte

'Variables -----------------
I var byte
Ana var word

' Define ports
SP1 VAR PORTC.0

' ************************************************** **********
' * main program loop - remember, you must keep the USB *
' * connection alive with a call to USBService every couple *
' * of milliseconds or so... *
' ************************************************** **********

TRISD = %11110000 'Set PORTD 0-3 to output, 4-7 to input
'UCFG.2 = 1

usbinit ' initialise USB...

ProgramStart: 'Just want to test the USB speed

high sp1
gosub DoUSBIn
low sp1
gosub DoUSBOut

goto ProgramStart

' ************************************************** **********
' * receive data from the USB bus *
' ************************************************** **********
DoUSBIn:
USBBufferCount = USBBufferSizeRX ' RX buffer size
USBService ' keep connection alive (executed at least every 10ms)
USBIn 1, USBBuffer, USBBufferCount, DoNext ' read data, if available
PORTD = usbbuffer[2]
Ana = (usbbuffer[0] << 7) | usbbuffer[1]
freqout sp1,500,ana
DoNext:
return

' ************************************************** **********
' * wait for USB interface to attach *
' ************************************************** **********
DoUSBOut:
USBBufferCount = USBBufferSizeTX ' TX buffer size
USBService ' keep connection alive (executed at least every 10ms)
USBOut 1, USBBuffer, USBBufferCount, DoUSBOut ' if bus available, transmit data
return
================================================== =================

Do you know other way to get Full-Speed mode with pbp ?
Thank you in advance.

[Rob]

Thank Rob, however, I cannot set UCFG.2=1 or FSEN=1 in my program. When I do this, I get error message

I think you're using PBP 2.47 or older so the UCFG register is not included. Try this:

UCFG var byte EXT
UCFG.2 = 1

Cheers

Rob

[Bruce]

Unless you're using descriptors you found somewhere else, you shouldn't need to mess with
UCFG. Your PBP USB template descriptor file should have this already in place.

#define UCFG_VAL _PUEN|_TRINT|_FS|MODE_PP ; Full-speed

Arguments for the define are listed in the USB18.inc include file under UCFG Initialization
Parameters.

[kirtcathey]

I want to use EasyHID, so purchased Microcode Studio about one week ago. Since then, Mecanique has not responded to two emails, I cannot find where to download EasyHID, and am at a loss. Have since sent a complaint to WorldPay and have requested a refund... just in case.

Where can one get hold of a copy of EasyHID? Or, are there other solutions out there, so I don't have to beg for the software from some vendor?

Is Mecanique going out of business? Why doesn't anybody respond?

[Archangel]

Is Mecanique going out of business? Why doesn't anybody respond?

Holiday season many businesses are closed. Try again Monday.

[Darrel Taylor]

EASY ....

Down boy, down ... That's better.

David is a busy man.
With MicroCode Studio, the PROTON IDE, Swordfish Basic, and others, the poor guys got his hands full.
Please don't report him to Internet squeelers.

Be nice, ask real questions ... he'll get back to you.
<br>

[kirtcathey]

Thanks again Darrel. Okay, I can understand that situation very well, since I tend to be a one-man band. However, it seems like with that much going on, he'd hire a spare geek or two to handle the front end.
Getting back to the subject....

I am building a proof-of-concept prototype (aren't we all!!) that will sit between the keyboard and host. When the end-user types in a certain character string or key combination, the microcontroller will send a control signal to another receiving device to start and stop a motor. Should I make this a keyboard HID, a generic device HID, or none at all and somehow pull information off the wire?

Regards,
Kirt

[Darrel Taylor]

I should mention that EasyHID comes with MicroCode Studio.

It's located in the "C:\Program Files\Mecanique\MCSP\EasyHID" folder. (assuming default installation).

In that folder, there is a file EasyHID.chm.
Should answer most of your questions.

[kirtcathey]

Right. And after reading a bunch of posts on these forums (many by you) about it... I want it even more! Or, do I? I am thinking that things may work out with just a generic keyboard HID for the time being, but not sure.

[Demon]

....

I am building a proof-of-concept prototype (aren't we all!!) that will sit between the keyboard and host. When the end-user types in a certain character string or key combination, the microcontroller will send a control signal to another receiving device to start and stop a motor.

...

What micro-controller will you use? Last I heard (maybe over a year ago), the PIC could not act as host to a USB device. Has a new model been released?

Robert

[kirtcathey]

Robert,

Thank you.

I'm using an 18F2550, since it's only 28 pins. Yes, I understand that it cannot be a USB host, which is why I am at a loss. What I am doing right now with somewhat positive results is programming for a keyboard device, then plugging the straight-wiring the keyboard to the host, then pulling power and data taps to the PIC. All is recognizing fine, except am working on finding the right host driver for this funky keyboard.

Going to catch a train to Akihabara in a few minutes to pickup a generic USB keyboard and some other stuff.

[Demon]

Robert,

Thank you.

I'm using an 18F2550, since it's only 28 pins. Yes, I understand that it cannot be a USB host, which is why I am at a loss. ...

Courtesy of Mister E, check out the PIC24 et PIC32 family.

[kirtcathey]

Somebody at Mecanique was kind enough to get Microcode Plus to me so that I can now use EasyHID, but it doesn't work. I fo through all the dialogs, then in the last dialog I get Generation Error: Unable to locate device item.

After reading other posts, I paid careful attention to the mfr name and product name, making sure there were no special characters. Am trying to create a USB device with an 18F2550,

Any help is appreciated.

[kirtcathey]

I've had this EasyHID problem and nobody at Mecanique responds with support. One email arrived asking me to send in a screen shot... I sent the screen shot, which doesn't make sense since it is the same error that the EasyHID in the non-plus version of Microcode Studio gave, which is a version limitation (I thought).

I purchased the plus version of Microcode Studio over two weeks ago and still don't have EasyHID working. What disgusts me, is that most software vendors these days at least have a troubleshooting FAQ about their products and these banchies don't even have a forum!

This is from their web site:
"We will respond to all complaints within one working day, usually the same day. We aim to resolve any complaints or problems within five working days. We will keep you informed and do our best to resolve the situation as quickly as possible."

They have so far only replied to one email. I do not count the response to the WorldPay claim that I had to submit after waiting a week for a purchase/delivery confirmation.

Yeah, yeah, they are busy or so-and-so has a bunch of projects. BS! So do I and I am trying to use their solution. Refund, refund, denial of credit charges.... hate to do that, but....

[mackrackit]

I do not understand...
MCS+ was purchased to have EasyHID?
I have the version of MCS that comes with the compiler and EasyHID is there as Darrel mentioned.

Maybe the problem is...elsewhere?

[Demon]

[QUOTE=kirtcathey;68507]
...

All is recognizing fine, except am working on finding the right host driver for this funky keyboard.

...QUOTE]


Something tells me this might be a case of RTFM. When you say "funky keyboard", do you mean an uncommon keyboard that will run separately from the USB/PIC device? Or are you referring to the USB/PIC device itself?

If you are referring to a keyboard not known by your operating system, I fail to see how Mécanique can be held accountable. But if you are referring to a custom PIC/USB device, doesn't EasyHID generate the code for the PIC as well as the code for the PC (driver)?

I haven't used EasyHID in a long time, I've been using another USB code generation software so I might be getting them confused.

[kirtcathey]

Finding the right driver for the keyboard is irrelevant to EasyHID functioning or not. And I have USB devices working without EasyHID, but do not have EasyHID working. The keyboard issue was resolved minutes after that post. Please do not mix and try and match issues - RTFposting history - my questions about EasyHID have nothing to do with keyboards. Is there a manual, besides the cursory online help that offers no troubleshooting pointers, for EasyHID?

And no.... EasyHID is now only available with the plus version of MCS. When you run it all the way to the end without the plus version, it says that it cannot find the device and that you have to upgrade.

The unspoken truth about this matter, is that I have to resort to a forum to see if anybody knows what is going on.... or try and resolve this matter....

I am selecting PicBasic Pro as my compiler, since that is the only thing available on the pull-down. Is this okay? Or, should I be selecting MPASM, which is not an available choice?
Does the device need to be in the programmer and recognized before running EasyHID? Do I need to have the ICD working? Do I need to have MS VC++ or Delphi installed on the same system that will run EasyHID? Any help would be appreciated since I cannot rely on the software vendor.

Robert Quote
But if you are referring to a custom PIC/USB device, doesn't EasyHID generate the code for the PIC as well as the code for the PC (driver)?
End Quote

No. I need the PC side of the code and I want/paid for EasyHID to do it. No. EasyHID does not work as described in previous posts.

[Darrel Taylor]

If I had a customer that was reporting me to credit card companies, and threatening to cancel payment unless I fix his problem NOW. I probably wouldn't be giving much help either. Although, I would just refund the money and say, go away.
Like I said before ... be nice to him, and he'll respond.

However, your problem appears to be related to EasyHID not being able to find the CodeGenerators.
Did you accept the default folders during installation? Or did you change them?

I can duplicate the error by hiding the CodeGenerators folder within EasyHID's folder.

<img src="http://www.picbasic.co.uk/forum/attachment.php?attachmentid=3101" /><!-- -->

But in order to do that, the screen previous to the error looks like this, with many options greyed out.

<img src="http://www.picbasic.co.uk/forum/attachment.php?attachmentid=3102" /><!-- -->

Does yours look like that as well?
<br>

[kirtcathey]

Darrel,

Thanks again. But I have been far less than demanding for NOW service on this issue. Two weeks, going on three weeks, have passed since purchasing the product and have only lodged one claim with WorldPay only after one week of the vendor not replying. As a consumer, I have not acted unreasonable. Like most consumers, after purchasing a product online, I like to have some kind of confirmation email from the vendor.

How often have you purchased software and have not been able to use it for three weeks? I have gone through software challenges before, but the vendor at least offered some kind of direct support.

All of the installation is default. The only difference is that I uninstalled the free version, rebooted, then installed the Plus version.

Here is my screen before the errors screen, which does not look like that.

[kirtcathey]

With no further ado.... and for those poor souls that will need this solution in the future.....

Go into the EasyHID program folder >> CodeGenerators folder and change the pbp.ini file so that the Target Folder is PBP (or whatever the name of your PBP program folder is).

[Darrel Taylor]

Try this ...

Instead of launching EasyHID from the IDE...

Go to C:\Program Files\Mecanique\MCSP\EasyHID with "Windows Explorer" and doubleclick EasyHID.exe to start the wizard.

Oops: too late.
<br>

[dandyong]

Hi all,

Nice to meet you.

I already have files generated by EasyHID.

What I want is when PIC18F4550 detect High in any of its digital inputs, Firefox is run automatically.

VB6 code to run Firefox for your reference.
Private Sub Form_Load()
Shell "C:\Program Files\Mozilla Firefox\firefox.exe", vbNormalFocus
End Sub

Just don't know how to write the part to detect HIGH in digital inputs of PIC18F4550.

Please send me the complete PIC source code & VB 6 source code for the above scenario to my email below.
[email protected]

I really appreciate your help.

Thanks and best regards.

[mackrackit]

Please send me the complete PIC source code & VB 6 source code for the above scenario to my email below.

But first you will have to transfer funds to my bank account.
Contact me at
"[email protected]"