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USB Joystick PIC18F2458
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andreahmed



Joined: 09 Dec 2020
Posts: 13

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USB Joystick PIC18F2458
PostPosted: Wed Dec 09, 2020 2:46 pm     Reply with quote

Hello,

I'm trying to write a USB Descriptor for Joystick with throttle and X,Y Axis.

But it never gets recognized as USB Joystick.

Please help Smile


Code:

   const char USB_CLASS_SPECIFIC_DESC[] =
   {
    0x05,               // 0
    0x01,                    // USAGE_PAGE (Generic Desktop) ,1
    0x15,               //2
    0x00,                    // LOGICAL_MINIMUM (0) ,3
    0x09,               //4
    0x04,                    // USAGE (Joystick) ,5
    0xa1,               //6
    0x01,                    // COLLECTION (Application) 7
    0x85,                    // REPORT ID ,8
    0x01,                    //ID 1 ,9
    0x05,               //10
    0x02,                    //   USAGE_PAGE (Simulation Controls),11
    0x09,               //12
    0xbb,                    //   USAGE (Throttle) ,13
    0x15,               //,14
    0x81,                    //   LOGICAL_MINIMUM (-127) ,15
    0x25,               //16
    0x7f,                    //   LOGICAL_MAXIMUM (127), 17
    0x75,               // 18
    0x08,                    //   REPORT_SIZE (8),19
    0x95,               //20
    0x01,                    //   REPORT_COUNT (1),21
    0x81,               //22
    0x02,                    //   INPUT (Data,Var,Abs),23
    0x05,               //24
    0x01,                    //   USAGE_PAGE (Generic Desktop) ,25
    0x09,               //26
    0x01,                    //   USAGE (Pointer) , 27
    0xa1,               //28
    0x00,                    //   COLLECTION (Physical), 29
    0x09,               //30
    0x30,                    //     USAGE (X),31
    0x09,               //32
    0x31,                    //     USAGE (Y),33
    0x95,               //34
    0x02,                    //     REPORT_COUNT (2),35
    0x81,               //36
    0x02,                    //     INPUT (Data,Var,Abs),37
    0xc0,                          //   END_COLLECTION,38
    0x09,                     //39
    0x39,                    //   USAGE (Hat switch),40
    0x15,               //41
    0x00,                    //   LOGICAL_MINIMUM (0),42
    0x25,               //43
    0x07,                    //   LOGICAL_MAXIMUM (7),44
    0x35,               //45
    0x00,                    //   PHYSICAL_MINIMUM (0),46
    0x46,               //47
    0x3B,               //48
    0x01,                    //   PHYSICAL_MAXIMUM (315),49
    0x65,               //50
    0x14,                    //   UNIT (Eng Rot:Angular Pos),51
    0x75,               //52
    0x08,                    //   REPORT_SIZE (8),53
    0x95,                  //54
    0x01,                    //   REPORT_COUNT (1),55
    0x81,               //56
    0x02,                    //   INPUT (Data,Var,Abs),57
    0x05,               //58
    0x09,                    //   USAGE_PAGE (Button),59
    0x19,               //60
    0x01,                    //   USAGE_MINIMUM (Button 1),61
    0x29,                  //62
    0x10,                    //   USAGE_MAXIMUM (Button 16),63
    0x15,               //64
    0x00,                    //   LOGICAL_MINIMUM (0),65
    0x25,               //66
    0x01,                    //   LOGICAL_MAXIMUM (1),67
    0x75,               //68
    0x01,                    //   REPORT_SIZE (1),69
    0x95,                  //70
    0x10,                    //   REPORT_COUNT (16),71
    0x55,               //72
    0x00,                    //   UNIT_EXPONENT (0),73
    0x65,                  //74
    0x00,                    //   UNIT (None),75
    0x81,               //76
    0x02,                    //   INPUT (Data,Var,Abs),77
    0xc0,                     // END_COLLECTION,78
   };



++++++++++++++++++
Edited to remove most code from CCS driver file.
Per forum rules - don't post CCS drivers.
- Forum Moderator
++++++++++++++++++
andreahmed



Joined: 09 Dec 2020
Posts: 13

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PostPosted: Thu Dec 10, 2020 3:10 am     Reply with quote

please help :(
Ttelmah



Joined: 11 Mar 2010
Posts: 17610

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PostPosted: Thu Dec 10, 2020 3:45 am     Reply with quote

The first big problem is going to be the VID/PID.
Windows now requires the vendor ID and product ID to match the device
being used. VID 461, is Primax, and I don't think they do a device 0x20.
So Windows is not going to recognise this as a joystick. For your own use
(though not for a product to sell), the solution is to find a device that
matches what you want to do, and use it's VID/PID.
ATMEL do a LUFA application demo that includes a joystick. VID 0x3EB
PID 0x2043.
The sources for this are available on GitHub, and you would need to match
it's descriptor for it to be recognised correctly.

Then the usb_task needs to be in the loop, not just once at the start.
Look at the kbmouse example for how the loop should work.

Then there needs to be a delay between selecting adc channels and
reading them. Either add one in your code, or enable one in the hardware
with the ADC_TAD_MUL setting. You currently select '0'.

There is a problem in sizing. You send 4 bytes. You need a 4 byte report.
Your descriptor is not for this.

The TX size should also increase for this.

The descriptor just looks wrong. You have a single byte for a throttle,
Then two bytes for pointers, then a hat switch. The report seems to
go very wrong at this point. I suspect Windows is refusing to accept this
is legal.
Simply and just do a count of four single byte positions (since this is
what you are sending). Get this working first, then start adding buttons
etc..

If you want us to help verify the descriptor, then you need to tell us
exactly what the device is going to do. What the analog axes 'are', how
many buttons, etc..
andreahmed



Joined: 09 Dec 2020
Posts: 13

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PostPosted: Thu Dec 10, 2020 6:22 am     Reply with quote

Thanks so much for your help!

Here is the changes:
Code:

#include "C:\Users\xgame\Desktop\New folder\main.h"
#include <pic18_usb.h>
#include <usb_desc_hid.h>   //USB Configuration and Device descriptors for this UBS device
#include <usb.c>        //handles usb setup tokens and get descriptor reports
 

void main() //handles usb setup tokens and get descriptor reports
 
{
   char write[64];

   setup_adc_ports(AN0_TO_AN9|VSS_VDD);
   setup_adc(ADC_CLOCK_DIV_16 | ADC_TAD_MUL_0 | ADC_TAD_MUL_2 | ADC_TAD_MUL_4 | ADC_TAD_MUL_6 | ADC_TAD_MUL_8 | ADC_TAD_MUL_12 );
   setup_wdt(WDT_OFF);
   setup_timer_0(RTCC_INTERNAL);
   setup_timer_1(T1_DISABLED);
   setup_timer_2(T2_DISABLED,0,1);
   setup_timer_3(T3_DISABLED|T3_DIV_BY_1);
   setup_comparator(NC_NC_NC_NC);
   setup_vref(FALSE);
//Setup_Oscillator parameter not selected from Intr Oscillotar Config tab

      usb_init_cs();


while (TRUE)
{
        usb_task();   
         // Lecture des entr?es analogiques
if (usb_enumerated())
      {
               set_adc_channel( 0);   
               write[0] = read_adc(); 
               delay_us(40);
             
               set_adc_channel( 1 );   
               delay_us(40);
               write[1] = read_adc();     
               write[1] = write[0] -128 ;           
               set_adc_channel( 2 );   
               delay_us(40);
               write[2] = read_adc();     
               write[2] = write[0] -128;
               set_adc_channel( 3 );
               delay_us(40);
               write[3] = read_adc();     
               write[3] = write[0] -128;
               
             
            usb_put_packet(1,write,4,USB_DTS_TOGGLE);
      }
         delay_ms(1);

     
   }

}




I would like to add multiple throttle for example lets say 4

Here is the modified descriptor:
Code:

   const char USB_CLASS_SPECIFIC_DESC[] =
   {
  0x05, 0x01, // USAGE_PAGE (Generic Desktop)
     0x15, 0x00, // LOGICAL_MINIMUM (0)
     0x09, 0x04, // USAGE (Joystick)
     0xA1, 0x01, // COLLECTION (Application)
     0x05, 0x02, // USAGE_PAGE (Simulation Controls)
     0x09, 0xBB, // USAGE (Throttle)
     0x15, 0x00, // LOGICAL_MINIMUM (0)
     0x26, 0xFF, 0x00, // LOGICAL_MAXIMUM (255)
     0x75, 0x08, // REPORT_SIZE (8)
     0x95, 0x01, // REPORT_COUNT (1)
     0x81, 0x02, // INPUT (Data Var Abs)
     0x05, 0x01, // USAGE_PAGE (Generic Desktop)
     0x09, 0x01, // USAGE (Pointer)
     0xA1, 0x00, // COLLECTION (Physical)
     0x09, 0x30, // USAGE (X)
     0x09, 0x31, // USAGE (Y)
     0x95, 0x02, // REPORT_COUNT (2)
     0x81, 0x02, // INPUT (Data Var Abs)}
     0xC0, // END_COLLECTION
     0x09, 0x39, // USAGE (Hat switch)
     0x15, 0x00, // LOGICAL_MINIMUM (0)
     0x25, 0x03, // LOGICAL_MAXIMUM (3)
     0x35, 0x00, // PHYSICAL_MINIMUM (0)
     0x46, 0x0E, 0x01, // PHYSICAL_MAXIMUM (270)
     0x65, 0x14, // UNIT (Eng Rot:Angular Pos)
     0x75, 0x04, // REPORT_SIZE (4)
     0x95, 0x01, // REPORT_COUNT (1)
     0x81, 0x02, // INPUT (Data Var Abs)
     0x05, 0x09, // USAGE_PAGE (Button)
     0x19, 0x01, // USAGE_MINIMUM (Button 1)
     0x29, 0x0A, // USAGE_MAXIMUM (Button 10)
      0x15, 0x00, // LOGICAL_MINIMUM (0)
      0x25, 0x01, // LOGICAL_MAXIMUM (1)
      0x75, 0x01, // REPORT_SIZE (1)
      0x95, 0x0C, // REPORT_COUNT (12) 2 bits added to switch report count
                  // so bytes are even. Bytes must be even.
      0x55, 0x00, // UNIT_EXPONENT (0)
      0x65, 0x00, // UNIT (None)
      0x81, 0x02, // INPUT (Data Var Abs)
      0xC0 // END_COLLECTION
       };


Many thanks for your quick response and reviewing my code.

++++++++++++++++++
Edited to remove most code from CCS driver file.
Per forum rules - don't post CCS drivers.
- Forum Moderator
++++++++++++++++++


Last edited by andreahmed on Thu Dec 10, 2020 6:47 am; edited 1 time in total
Ttelmah



Joined: 11 Mar 2010
Posts: 17610

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PostPosted: Thu Dec 10, 2020 8:10 am     Reply with quote

The delays need to be between selecting the channel and taking the reading....
Ttelmah



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PostPosted: Thu Dec 10, 2020 8:12 am     Reply with quote

Pull this:

<https://www.usb.org/document-library/hid-descriptor-tool>

This is the tool from the USB ORG, to design and test descriptors.

Get your descriptor passed by this first.
andreahmed



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Posts: 13

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PostPosted: Thu Dec 10, 2020 8:31 am     Reply with quote

I stayed two days 18 hours, please help Smile
andreahmed



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PostPosted: Thu Dec 10, 2020 8:33 am     Reply with quote

char ReportDescriptor[38] = {
0x05, 0x01, // USAGE_PAGE (Generic Desktop)
0x15, 0x00, // LOGICAL_MINIMUM (0)
0x09, 0x04, // USAGE (Joystick)
0xa1, 0x01, // COLLECTION (Application)
0x05, 0x02, // USAGE_PAGE (Simulation Controls)
0x09, 0xbb, // USAGE (Throttle)
0x15, 0x00, // LOGICAL_MINIMUM (0)
0x26, 0xff, 0x00, // LOGICAL_MAXIMUM (255)
0x75, 0x08, // REPORT_SIZE (8)
0x95, 0x01, // REPORT_COUNT (1)
0x81, 0x02, // INPUT (Data,Var,Abs)
0x05, 0x01, // USAGE_PAGE (Generic Desktop)
0x09, 0x01, // USAGE (Pointer)
0xa1, 0x00, // COLLECTION (Physical)
0x09, 0x30, // USAGE (X)
0x09, 0x31, // USAGE (Y)
0x95, 0x02, // REPORT_COUNT (2)
0x81, 0x02, // INPUT (Data,Var,Abs)
0xc0 // END_COLLECTION
};

here is the designed one
andreahmed



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PostPosted: Thu Dec 10, 2020 8:41 am     Reply with quote

here is modified descriptor as your suggestions
still doesn't work as joystick


Code:

   const char USB_CLASS_SPECIFIC_DESC[] =
   {
    0x05, 0x01,                    // USAGE_PAGE (Generic Desktop)
    0x15, 0x00,                    // LOGICAL_MINIMUM (0)
    0x09, 0x04,                    // USAGE (Joystick)
    0xa1, 0x01,                    // COLLECTION (Application)
    0x05, 0x02,                    //   USAGE_PAGE (Simulation Controls)
    0x09, 0xbb,                    //   USAGE (Throttle)
    0x15, 0x00,                    //   LOGICAL_MINIMUM (0)
    0x26, 0xff, 0x00,              //   LOGICAL_MAXIMUM (255)
    0x75, 0x08,                    //   REPORT_SIZE (8)
    0x95, 0x01,                    //   REPORT_COUNT (1)
    0x81, 0x02,                    //   INPUT (Data,Var,Abs)
    0x05, 0x01,                    //   USAGE_PAGE (Generic Desktop)
    0x09, 0x01,                    //   USAGE (Pointer)
    0xa1, 0x00,                    //   COLLECTION (Physical)
    0x09, 0x30,                    //     USAGE (X)
    0x09, 0x31,                    //     USAGE (Y)
    0x95, 0x02,                    //     REPORT_COUNT (2)
    0x81, 0x02,                    //     INPUT (Data,Var,Abs)
    0xc0                           //   END_COLLECTION
   
       };


++++++++++++++++++
Edited to remove most code from CCS driver file.
Per forum rules - don't post CCS drivers.
- Forum Moderator
++++++++++++++++++
andreahmed



Joined: 09 Dec 2020
Posts: 13

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PostPosted: Thu Dec 10, 2020 9:07 am     Reply with quote

I'm getting crazy, I tried EVERYTHING to make it recognize as joystick, it never does. please help Embarassed
Ttelmah



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Posts: 17610

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PostPosted: Thu Dec 10, 2020 11:31 am     Reply with quote

Use the tool I have already pointed you to and get the descriptor right.
However I do have to ask, have you actually tested your PIC with one of
the examples?. You don't show your clock setups, so your settings could
be wrong.
andreahmed



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PostPosted: Thu Dec 10, 2020 11:50 am     Reply with quote

I used the tool, I showed you a descriptor that I want to use.
I fed up with this actually :(
temtronic



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PostPosted: Thu Dec 10, 2020 12:31 pm     Reply with quote

Hmm...depending on what you want the PIC to do, it may be a lot easier to use a TTL<>USB module. Best $2 I've ever spent,allows me to prgram the PIC and not get frustrated with USB 'bloatware'.
andreahmed



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Posts: 13

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PostPosted: Thu Dec 10, 2020 2:19 pm     Reply with quote

I made this descriptor

Code:
0x05, 0x01, // USAGE_PAGE (Generic Desktop)
     0x15, 0x00, // LOGICAL_MINIMUM (0)
     0x09, 0x04, // USAGE (Joystick)
     0xA1, 0x01, // COLLECTION (Application)
     0x05, 0x02, // USAGE_PAGE (Simulation Controls)
     0x09, 0xBB, // USAGE (Throttle)
     0x15, 0x00, // LOGICAL_MINIMUM (0)
     0x26, 0xFF, 0x00, // LOGICAL_MAXIMUM (255)
     0x75, 0x08, // REPORT_SIZE (8)
     0x95, 0x01, // REPORT_COUNT (1)
     0x81, 0x02, // INPUT (Data Var Abs)
     0x05, 0x01, // USAGE_PAGE (Generic Desktop)
     0x09, 0x01, // USAGE (Pointer)
     0xA1, 0x00, // COLLECTION (Physical)
     0x09, 0x30, // USAGE (X)
     0x09, 0x31, // USAGE (Y)
     0x95, 0x02, // REPORT_COUNT (2)
     0x81, 0x02, // INPUT (Data Var Abs)}
     0xC0, // END_COLLECTION
     0x09, 0x39, // USAGE (Hat switch)
     0x15, 0x00, // LOGICAL_MINIMUM (0)
     0x25, 0x03, // LOGICAL_MAXIMUM (3)
     0x35, 0x00, // PHYSICAL_MINIMUM (0)
     0x46, 0x0E, 0x01, // PHYSICAL_MAXIMUM (270)
     0x65, 0x14, // UNIT (Eng Rot:Angular Pos)
     0x75, 0x04, // REPORT_SIZE (4)
     0x95, 0x01, // REPORT_COUNT (1)
     0x81, 0x02, // INPUT (Data Var Abs)
     0x05, 0x09, // USAGE_PAGE (Button)
     0x19, 0x01, // USAGE_MINIMUM (Button 1)
     0x29, 0x0A, // USAGE_MAXIMUM (Button 10)
      0x15, 0x00, // LOGICAL_MINIMUM (0)
      0x25, 0x01, // LOGICAL_MAXIMUM (1)
      0x75, 0x01, // REPORT_SIZE (1)
      0x95, 0x0C, // REPORT_COUNT (12) 2 bits added to switch report count
                  // so bytes are even. Bytes must be even.
      0x55, 0x00, // UNIT_EXPONENT (0)
      0x65, 0x00, // UNIT (None)
      0x81, 0x02, // INPUT (Data Var Abs)
0xC0 // END_COLLECTION             // End Collection

It doesn't work at all.

But the usb_hid descriptor works, I don't know what's wrong with it.
andreahmed



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PostPosted: Thu Dec 10, 2020 2:41 pm     Reply with quote

here is full code
Code:

   const char USB_CLASS_SPECIFIC_DESC[] =
   {
 0x05,               // 0
    0x01,                    // USAGE_PAGE (Generic Desktop) ,1
    0x15,               //2
    0x00,                    // LOGICAL_MINIMUM (0) ,3
    0x09,               //4
    0x04,                    // USAGE (Joystick) ,5
    0xa1,               //6
    0x01,                    // COLLECTION (Application) 7
    0x85,                    // REPORT ID ,8
    0x01,                    //ID 1 ,9
    0x05,               //10
    0x02,                    //   USAGE_PAGE (Simulation Controls),11
    0x09,               //12
    0xbb,                    //   USAGE (Throttle) ,13
    0x15,               //,14
    0x81,                    //   LOGICAL_MINIMUM (-127) ,15
    0x25,               //16
    0x7f,                    //   LOGICAL_MAXIMUM (127), 17
    0x75,               // 18
    0x08,                    //   REPORT_SIZE (8),19
    0x95,               //20
    0x01,                    //   REPORT_COUNT (1),21
    0x81,               //22
    0x02,                    //   INPUT (Data,Var,Abs),23
    0x05,               //24
    0x01,                    //   USAGE_PAGE (Generic Desktop) ,25
    0x09,               //26
    0x01,                    //   USAGE (Pointer) , 27
    0xa1,               //28
    0x00,                    //   COLLECTION (Physical), 29
    0x09,               //30
    0x30,                    //     USAGE (X),31
    0x09,               //32
    0x31,                    //     USAGE (Y),33
    0x95,               //34
    0x02,                    //     REPORT_COUNT (2),35
    0x81,               //36
    0x02,                    //     INPUT (Data,Var,Abs),37
    0xc0,                          //   END_COLLECTION,38
    0x09,                     //39
    0x39,                    //   USAGE (Hat switch),40
    0x15,               //41
    0x00,                    //   LOGICAL_MINIMUM (0),42
    0x25,               //43
    0x07,                    //   LOGICAL_MAXIMUM (7),44
    0x35,               //45
    0x00,                    //   PHYSICAL_MINIMUM (0),46
    0x46,               //47
    0x3B,               //48
    0x01,                    //   PHYSICAL_MAXIMUM (315),49
    0x65,               //50
    0x14,                    //   UNIT (Eng Rot:Angular Pos),51
    0x75,               //52
    0x08,                    //   REPORT_SIZE (8),53
    0x95,                  //54
    0x01,                    //   REPORT_COUNT (1),55
    0x81,               //56
    0x02,                    //   INPUT (Data,Var,Abs),57
    0x05,               //58
    0x09,                    //   USAGE_PAGE (Button),59
    0x19,               //60
    0x01,                    //   USAGE_MINIMUM (Button 1),61
    0x29,                  //62
    0x10,                    //   USAGE_MAXIMUM (Button 16),63
    0x15,               //64
    0x00,                    //   LOGICAL_MINIMUM (0),65
    0x25,               //66
    0x01,                    //   LOGICAL_MAXIMUM (1),67
    0x75,               //68
    0x01,                    //   REPORT_SIZE (1),69
    0x95,                  //70
    0x10,                    //   REPORT_COUNT (16),71
    0x55,               //72
    0x00,                    //   UNIT_EXPONENT (0),73
    0x65,                  //74
    0x00,                    //   UNIT (None),75
    0x81,               //76
    0x02,                    //   INPUT (Data,Var,Abs),77
    0xc0,                     // END_COLLECTION,78
             };


++++++++++++++++++
Edited to remove most code from CCS driver file.
Per forum rules - don't post CCS drivers.
- Forum Moderator
++++++++++++++++++
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